baber/WOPTO huggingface dataset:
Patent GB-1253396-A (GB)
Title: Gun having a mushroom head obturator
IPC: F41A3/74
Filed: 1969-11-03
Abstract: 1,253,396. Ordnance. RHEINMETALL G.m.b.H. 3 Nov., 1969 [8 Nov., 1968], No. 53683/69. Heading F3C. A gun comprises a sliding wedge breech block 16 an obtivator 1 of mushroom head shape which is mounted on a shaft 6 fast with the gun barrel and extending parallel to the axis of the gun barrel for movement longitudinally of and pivotally about the shaft 6. The obtivator 1 is provided with a helically toothed pinion 7 which co-operates with a rack 8 of a movable breech plate 13 for actuation of the obtivator. The sliding wedge breech block 16 carries primers and co-operates with the obtivator and breech plate 13 in the breech action of the gun, the breech plate 13 and breech block 16 being cam operated. The obtivator 1 is closed on counter recoil of the gun, the longitudinal movement of the obtivator taking place after the pivoting movement. The obtivator 1 is guided in its movements by a pin connected to the pinion or the obtivator working in a groove in the shaft 6, the groove having a straight portion and a part circumferential portion (Fig. 4, not shown). The breech is opened also during counter recoil.
Patent GB-1334611-A (GB)
Title: Telephone exchange systems
IPC: H04M3/60
Filed: 1971-11-19
Abstract: 1334611 Automatic exchange systems SIEMENS AG 19 Nov 1971 [20 Nov 1970] 53758/71 Heading H4K In a PBX in which it is required to transfer an incoming call from one exchange operator to another, the first operator seizes a common call transfer device which is effective to set up a connection over the main speech switching network between the second operator's appearance thereon and the exchange line so that the two operators may converse via the network rather than via a special line. If the transfer is accepted the original operator releases her original connection to the exchange line via an auxiliary operator connector network and the call transfer device then makes a connection to the new operator via the auxiliary network and releases the path through the main network. The PBX normally permits direct inward dialling but access to operators occurs in the event of called extension busy or fails to answer, dilatory dialling on the part of the caller, or if an operator's position is specifically dialled. A calling exchange line AL is connected via its relay set A-Ue and a connector VK to a free register VS. A common control G-St then causes, if necessary, a connection to be set-up between VS and an operator VP via connector AK and a free supervisory set AS1. At the same time a free call transfer device PU is connected via connector PK to the set AS1 and the operator. The latter on ascertaining the caller's requirements may actuate a particular transfer key thus causing PU to seize the switching network marker M for the purpose of establishing a path between the register VS and the subscriber appearance TA which corresponds to the second operator, e.g. VPZ1, identified by operation of the transfer key. The identity of VPZ1 is stored in the transfer device. A lamp at the second operator's position is illuminated. When she is free she converses via her appearance TA with the first operator. (A split is effected in register VS to prevent the caller from overhearing the conversation.) If she accepts the call, VP withdraws thereby, via AS1, causing PU to seize common control G-St. The latter identifies AS 1 with the assistance of supervisory set hunter A-Su and causes the identity of the second operator, which is still stored in PU, to be passed via AS1 and AK into register VS where it replaces the first operator's identity in store NS. (Storage relay VZ denotes that the register is involved in an operator assistance call and not a direct inward dialling call.) VS advises G-St that the new identity is stored so that the existing connection via AS 1 may be broken down. Once this is effected, G-St is reseized to set up a new connection via ASZ 1 and to release the network path to TA.
Patent GB-1195118-A (GB)
Title: An Improved Charge Density Meter.
IPC: G01R5/28
Filed: 1967-11-27
Abstract: 1,195,118. Measuring charge density. STANDARD OIL CO. Nov. 27, 1967 [Nov. 29, 1966], No. 53762/67. Heading G1U. A charge density meter for measuring the space density of charge in electrically charged flowing fluids comprises inner and outer co-axial hollow cylinders 6, 4, Fig. 1, open at both ends, one cylinder being fixed and the other rotated by the action of fluid-flow, and electrically insulated electrostatic charge induction plate 8 on the surface of the inner cylinder 6, the metal cylinder being earthed and having an aperture in its wall so that on relative rotation of the cylinders, the plate is alternately exposed and shielded from the charged fluid so that a charge proportional to the space density of charge in the fluid is formed in the plate, there being also and arrangement for removing the charge from the plate for measurement in the embodiment shown in Fig. 1, the inner cylinder is fixed and the outer cylinder is rotatable, either by being provided with turbine blades or, as shown, by being provided with ribs 16 against which fluid is directed by deflection plates 14 in the inner cylinder. The charge is measured as a voltage developed across a resistor connected between the charge induction plate and ground the voltage being measured by an A. C. voltmeter and the resistor being shunted by a capacitor to compensate for small changes in fluid velocity. Where the sign of the electrical charge in the fluid is not constant, the net space charge density is measured by a D.C. averaging meter, Fig. 6, controlled by a gated detector which passes positive and negative signals depending on the charge in the fluid, the detector being controlled by a bi-stable multivibrator fed by a sensing head 36 which provides positive and negative reference pulses depending on the location of the leading and trailing edges of the aperture in the outer cylinder relative to the plate 8. In a modification, Figs. 4 5 (not shown) the outer cylinder (4a) is fixed and a brush (30) is used to remove the charge from the plate (8a) fixed to the rotatable inner cylinder (6a).
Patent GB-1101160-A (GB)
Title: Improvements in or relating to cutting tools
IPC: B23C5/22
Filed: 1965-12-20
Abstract: 1,101,160. Milling-cutters. VALERON CORPORATION. 20 Dec., 1965 [4 Jan., 1965], No. 53851/65. Heading B3K. An annular cutting tool comprises a series of lugs 11 with intervening slots, a locating element 12 on each lug having locating means for an edge and a face of a cutting bit 13, and a wedge 14 for abutting the adjacent lug and forcing the bit against the locating element. The elements or anvils 12 grip the body by ribs 16 and are normally left in place unless they become damaged. An indexable bit 13 is dropped into a recess 21 in an anvil and secured by a wedge 14. The clearance angles of a bit are determined by the anvil.
Patent GB-1068109-A (GB)
Title: Preparation of adiponitrile
IPC: C07C255/04
Filed: 1965-12-21
Abstract: In carrying out the process for the production of adiponitrile of the parent Specification 1,032,989, comprising reacting, at elevated temperatures under superatmospheric pressure, a mixture of (a) acrylonitrile, (b) a metal carbonyl or metal carbonyl derivative, (c) hydrogen, or water, or water and a Lewis base, or hydrogen and water and a Lewis base, the improvement comprises venting off as the reaction proceeds some of the carbon monoxide and other non-condensible products formed under the reaction conditions. Conveniently, the venting off is effected so as to maintain a constant pressure in the reactor which preferably takes the form of an autoclave fitted with a reflux condenser having a venting valve in the upper part thereof; in this way the reactants vaporized at the reaction temperature are condensed and only non-condensibles leave the venting valve.  Examples are provided.
Patent GB-1200218-A (GB)
Title: Winding control device for continuous spinning frames and the like
IPC: D01H1/36
Filed: 1967-12-01
Abstract: 1,200,218. Builder motion. N. SCHLUMBERGER & CIE. 1 Dec., 1967 [9 Dec., 1966], No. 54821/67. Heading DID. A builder device for a ring frame or the like provides a fixed traverse, a gain motion and movement of the rail to wind under and overwindings. The device comprises: a first differential having a planet wheel 49 rotatable on a shaft 31 satellites 73, 71 interconnected to 49 by an idler 74 and a second planet wheel 43 the satellite carrier being a star shaped member 47 keyed to shaft 31 and a second differential having a planet wheel 41, 42 satellites 64, 66 a second planet wheel 45, 46, the satellite carrier being the wheel 43 which forms the second planet wheel of the first differential. A cam and rocking lever arrangement 116, 115, 108 reciprocates a chain 106, which wraps onto the star shaped member 47. This rocking motion is normally transmitted to wheel 45, 46 which reciprocates a chain 101 to raise and lower the ring rails 2. To provide the gain at each traverse wheel 49 is fast with a ratchet wheel 48 engagable by a pawl 78 on star member 47 and a pawl 81 on a lever 53 rockable about shaft 31. During most of the normal build lever 53 pivots with ratchet 48 but as the rail approaches the top of its upstroke lever 53 strikes a stop 85 and the ratchet is driven by pawl 81, the pawl 78 passing over a number of teeth, the number determining the gain. The stop 85 is adjustable so that the gain may be adjusted. Overwindings and underwindings. Wheel 41, 42 is held stationary during normal winding by a chain 95 passing thereabout and about the sprocket of a stationary motor 98. However when the ring rail reaches the topmost built position (A) see Fig. 5 not shown, a contact 121 which moves with the rod 12 transmitting drive to the ring rails operates a switch to activate a control circuit. When the rails reaches position (B) i.e. the bobbin shoulder, switch 122 is operated to start motor 98 and disengage clutch 119 through which drive to the building cam is transmitted. When the rails reach the overwinding position (c) switch 123 is actuated to stop motor 118 and activate a time delay relay to allow the top winding to be made. When the winding is completed the relay starts motor 98 to lower the rails. During the descent switch 124 is actuated to stop the drive to the spindles. Then switch 125 is actuated to cause the spindles to be braked for a given time. Finally switch 126 stops motor 98 to stop the rails in the underwinding position F, the spindle braking being such that the desired underwinding is made on the spindles before they come to rest.
Patent GB-1147822-A (GB)
Title: Quinazoline derivatives
IPC: C07D491/16
Filed: 1966-05-24
Abstract: 1,147,822. Quinazoline derivatives. SANDOZ Ltd. 24 May, 1966 [28 May, 1965], No. 54901/68. Divided out of 1,147,821. Heading C2C. Novel compounds of formula in which R 3  is H or Cl, R 4  and R 5  are H or methoxy and R 6  is C 1-5  alkyl, are produced by reacting a # -phenylethylamine with an o-nitrobenzoyl chloride to form an o-nitro-N-# -phenethyl-benzamide, reacting this with phosphorus pentoxide or phosphorus oxychloride to form a 1 - (2 - nitrophenyl) - 3,4 - dihydroisoquinoline, reducing this to form a 1-(2-aminophenyl)- 1,2,3,4 - tetrahydroisoquinoline, reacting this with carbon disulphide to form a 5,6,7,8-tetrahydro - isoquinolino - [2,1-c] - quinazoline - 6 - thione and alkylating this compound.
Patent GB-1399020-A (GB)
Title: Cryptographic identification system
IPC: G07F7/10
Filed: 1972-11-28
Abstract: 1399020 Cryptographic identification system INTERNATIONAL BUSINESS MACHINES CORP 28 Nov 1972 [23 Dec 1971] 54936/72 Heading E2A [Also in Division G4] A cryptographic identification apparatus for a security system, e.g. using a key card and a keyboard, is disclosed. The card has control logic and an ROM matrix thereon implemented in LS1 FET chips and, on inserting it into a reader, a keyboard is unlocked. The operator enters N key identification characters which identify the particular ROM on the card to a CPU or identification station for controlling access to a secure area and cause the keyboard to be locked. The CPU first checks whether a valid code has been transmitted and then inspects a table of ROM codes to see if the N characters match. If they do, the CPU constructs an image of the ROM. on the card using disc file records and selects two pseudo random characters from a memory table for transmission to the card via the 1/0 controller. The two characters prime the logic on the card to cause the ROM to generate a new set of key characters, the keyboard is unlocked, and the operator enters an N characters personal identification code. The two sets of characters are mixed character by character to form an encrypted N character code which is sent to the CPU, the keyboard being now locked. The CPU generates N key characters the ROM image and uses these to decrypt the incoming data. The decrypted data is then checked against a table of operator identification codes and, if agreement is found, an identification valid signal is sent to the 1/0 controller, compared with a known correct identification, and the keyboard is unlocked. The encryptation/decryptation process uses exclusive ORing of the respective N characters. The operator can now communicate with the CPU in an encrypted or non encrypted transmission mode. There is a ready/not ready light on the keyboard.
Patent GB-1463874-A (GB)
Title: Crushed foam-backed fabrics and foams for producing the same
IPC: C08J9/30
Filed: 1974-12-20
Abstract: 1463874 Ethylene-vinyl ester copolymer dispersion foams CHAS S TANNER CO 20 Dec 1974 [16 Jan 1974] 55175/74 Headings C3C and C3P [Also in Division B2] Foams of aqueous dispersions comprising an emulsion copolymer of 15 to 40 weight per cent ethylene units, 1À5 to 9 weight per cent crosslinking monomer units and the balance vinyl ester copolymer units, the copolymer having a molecular weight of at least 300,000, and the emulsion having air whipped therein in an amount increasing the volume of the emulsion 5- to 10-fold may be used in the production of crushed foam backed fabrics. The cross-linking monomer may be an N-methylol compound such as N-methylol acrylamide or N-methylol allyl carbamate, optionally with crosslinking potential introduced after copolymerization by partial hydrolysis if vinyl acetate units. Co-crosslinking monomers, e.g. acids, acrylamide, methacrylamide, allyl alcohol or hydroxyethyl acrylate or methacrylate may also be present. The emulsions may be foamed by whipping with air, applied to fabrics and the resulting coatings dried, crushed and baked to effect crosslinking. They may also contain thickeners, surfactants, pigments and aminoplast resins. Examples describe foamed emulsion copolymers of ethylene, vinyl acetate, acrylamide and (1) N-methylol acrylamide or (2) N-methylol allyl carbamate.
Patent GB-1426198-A (GB)
Title: Liquid-laid non-woven fibrous collagen derived web having hemostatic and wound sealing properties
IPC: A61F13/02
Filed: 1973-11-28
Abstract: 1426198 Collagen AVICON Inc 28 Nov 1973 [4 Dec 1972] 55282/73 Heading C3H [Also in Division D2] Water-insoluble, ionizable, partial acid salts of collagen containing from 50-90% of the theoretical stoichiometric amount of ionizable acid, in the form of fibres, are prepared by treating collagen fibres with an inorganic or organic acid. Specified acids are hydrochloric acid, hydrobromic acid, sulphuric acid, phosphoric acid, cyanoacetic acid, acetic acid, citric acid, and lactic acid. The collagen fibres may be derived from hide, gut, tendon, or cartilage, a preferred material being corium derived from cowhide. The partial acid salts may be formed by incorporating the required amount of acid in an aqueous dispersion or slurry of the fibres.
Patent GB-1415016-A (GB)
Title: Oxygen sensor
Inventor: GRUBB W
IPC: G01N27/404
Filed: 1973-11-29
Abstract: 1415016 Oxygen sensor GENERAL ELECTRIC CO 29 Nov 1973 [30 Nov 1972] 55447/73 Heading G1N An oxygen sensor comprises a noble metal electrode, a silver/silver halide (excluding fluoride) electrode and an aqueous buffered electrolyte solution containing a halide salt and an oxidizable fuel. The sensor preferably has the construction shown in which the noble metal electrode (e.g. a cleaned platinum wire) 11 is separated by insulation 15 from a silver tube 13 with silver chloride coating 14. Insulation 16 and oxygen permeable, electrolyte impermeable membrane 18 contain the electrolyte which contacts both electrodes. The oxidizable fuel may comprise 0.1-50.0 wt. per cent of the electrolyte (preferably 0.5-5.0 wt. per cent) and may be an alcohol, ethylene glycol, glycerol or other polyhydric alcohol or a polymer with COH groups. The electrolyte preferably contains a halide salt e.g. KCl, NaCl or AgCl buffered to pH5 by phosphate or borate. A gelling agent such as agor, methyl cellulose, ethyl cellulose guor gum, polyacrylate, polyether or polyamide may also be included. The oxygen permeable membrane may be formed from silicone-polycarbonate copolymer, hexafluoropropylene-vinylidine fluoride rubber or silicone rubber. The insulating layers may be applied after a grit blasted platinum wire by immersion, spraying or brushing and preferably comprise polyester resin but may also be hexafluoropropylene-vinylidine fluoride rubber, silicone rubber, polyolefin or epoxy resin. The use of heat shrinkable polyethylene tube is described.
Patent GB-1492406-A (GB)
Title: Injection nozzle for mixing chamber
IPC: B29C44/34
Filed: 1974-12-23
Abstract: 1492406 Ignition moulding foam materials BAYER AG 23 Dec 1974 [24 Dec 1973] 55597/74 Heading B5A [Also in Division B1] A nozzle for the interconnection of a mixture constituent into a mixing chamber 4 of air injection moulding machine comprises a nozzle opening 12 having a valve seat 11 co-operating with the tip 10 of a positively controlled valve needle 9. In the operative position shown the constituent is supplied through a duct 14 to the annular chamber 13 and thence to the nozzle opening 12. In the inoperative position (see Fig. 2, not shown) in which the valve needle tip 10 seats in the nozzle opening, the duct 14 is placed in communication with a return duct 17 by means of an annular groove 16 in the valve needle shaft 15. The valve is operated by a piston 19 on the shaft 15 in a double-acting hydraulic cylinder 20 and retained in the closed position by a spring 24; the valve stroke is adjustable by a screw 23. In a modification, (Figs. 2 and 3, not shown) the valve needle obturates the supply duct when in the inoperative position but a branch therefrom is placed in communication with the return duct by the annular groove in the valve needle. The arrangements eliminate time delay in starting and stopping supply to the mixing chamber. As described the mixing chamber 4 has two nozzles for injection of the components of a polyurethane foam, and is connected by a sprue channel 5 to a mould cavity 6, the mould being split along a plane of separation 7.
Patent GB-1456034-A (GB)
Title: Method of manufacturing porous bricks and other shaped porous ceramic material
IPC: E04C2/04
Filed: 1973-12-10
Abstract: 1456034 Porous bricks/ceramic material G A H VAN INGEN 10 Dec 1973 [14 Dec 1972] 57107/73 Heading C1A [Also in Division D1] Porous ceramic articles are made by mixing a coal-containing slate and/or fly ash containing coal with a borate or a compound which forms a borate when burnt, shaping the mixture to the desired form and drying and burning the shaped product so that the borate content in the finished article expressed as fused sodium borate is 0À5 to 5% by weight of the dry mixture weight. Preferably the slate and/or fly ash is selected to lose at least 15% by weight during burning. The preferred borate is borax, and the borate forming compound may be boric acid or its anhydride. One face of the shaped and burnt article may be impregnated with a concentrated borate solution (approximately 30% solution), the article is dried with the impregnated face uppermost and then baked. Preferably, the impregnated face has a B 2 O 3  : SiO 2  ratio of from 5 to 15%.
Patent GB-1344126-A (GB)
Title: Paper sheet feeding device
IPC: B65H29/04
Filed: 1971-12-09
Abstract: 1344126 Feeding sheets FUJI SHASHIN KOKI KK 9 Dec 1971 [12 Dec 1970] 57346/71 Heading B8R A paper sheet feeding device, e.g. in an electrophotographic copying machine, includes a pair of spaced, parallel, endless belts or chains trained around a pair of rotatable shafts and having at least one gripper bar connected therebetween, the bar having at least one gripper arm pivotably mounted thereon and normally biased towards the bar for gripping a sheet but pivotable from the bar, either by cam means on at least one of said shafts or by shaft means, stabilizing means, e.g. rotatable magnets, being provided on at least one of said pair of shafts, for attracting the bar, while said gripper arm coacts with said cam or shaft means, to prevent deflection and flexing in said bar.
Patent GB-1098560-A (GB)
Title: An electric lighting unit
IPC: F21S8/00
Filed: 1966-12-22
Abstract: 1,098,560. Outlet boxes; cases. BASSANI S.p.A. Dec. 22, 1966 [Dec. 28, 1965], No. 57449/66. Heading H2E. [Also in Division F4] A light fitting adapted to be embedded in a wall or ceiling comprises a housing 1 provided with frangible portions 2 to facilitate the formation of access holes for electric cables, a casing 5 adapted to hold one or more electric lamps and disposed wholly or partly in the housing, a transparent or translucent diffuser 19 which covers the casing and projects from the housing, and a cover-plate 21 having an opening 22 through which the diffuser projects. The casing may have brackets 9, 10 formed with elongated holes 17 to receive screws 18 securing it to the housing, and the cover-plate may have grooves 23 adapted to co-operate with ribs 24 on the brackets to hold the cover-plate in place. A collar 20 on the diffuser engages the rim of the casing and the edge of the opening 22 to retain the diffuser in position. In a modification the cover-plate is screwed to the easing. The electric lamps may be incandescent filament bulbs or tubes or fluorescent tubes, and may be divided from one another by screens in the casing or diffuser so that colour or signalling effects may be obtained.
Patent GB-1447492-A (GB)
Title: Microbiological production of cyclodextrin glycoxyltranferase
IPC: C12P19/18
Filed: 1972-12-14
Abstract: 1447492 Cyclodextrin glycosyltransferase ex Bacillus macerans SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 14 Dec 1973 [14 Dec 1972] 57697/72 Heading C3H Cyclodextrin glycosyltransferase is obtained by growing Bacillus macerans in a liquid medium comprising initially up to 30% w./v., for example 5-30% w./v. of a soluble starch as the source of carbon, a source or sources of nitrogen and phosphorus, essential minerals and the vitamins biotin and thiamine, under conditions which allow the starch concentration in the medium to fall to a level at which growth of the B. macerans becomes limited and thereafter allowing the bacillis to produce CGT. The preferred culture medium contains soluble starch, thiamine, biotin, zinc oxide, ammonium, phosphate, sulphate, chloride, citrate and molybdate ions and sources of magnesium, calcium, potassium, manganese and iron, and optionally as an additional carbon source, maltose.