baber/WOPTO huggingface dataset:
Patent GB-1460134-A (GB)
Title: Method and apparatus for filling and packing foodstuffs
IPC: A61L2/10
Filed: 1975-03-12
Abstract: 1460134 Sterile packaging ALUMINIUMWERKE AG and BBC BROWN BOVERI & CO Ltd 12 March 1975 [10 April 1974] 10297/75 Heading B8C Packaging material is disinfected by high intensity ultra-violet radiation generated by high current, low pressure mercury discharge with a discharge current density of >1 A/cm.<SP>2</SP> and a mercury pressure of 5 Î 10<SP>-3</SP> to 5 Î 10<SP>-1</SP> Torr, the spectral radiation intensity on the material being at least 0À05 W/cm.<SP>2</SP> and exposure being for at least 1 second. The material may be heated before exposure. In one application for filling cups 1 with, e.g. cream, the cups are sterilized by exposure to infra-red radiation and then to ultra-violet radiation emanating from a housing 6 prior to filling by a unit F and closure by a web 2 which is similarly sterilized by apparatus in housings 7, 8. In an alternative application, a web is sterilized by ultra-violet radiation before being formed into a tube about a filling nozzle, the tube being transversely sealed to form discrete packages, Fig. 2 (not shown).
Patent GB-135877-A (GB)
Title: Improvements relating to Jigs and the like.
Inventor: WINPENNY ALBERT ROWLAND
IPC: B23B47/28
Filed: 1918-06-22
Abstract: 135,877. Winpenny, A. R. June 22, 1918. Boring and drilling.-In a jig for boring, drilling, spot-facing, and hollow-milling levers, flanges, couplings, tubes, rolls, bushes, &c., of the kind in which the work is held between two oppositelydisposed and laterally-fixed locating-bushes or other fittings mounted in the same carrying-frame, into and from which the work may be inserted and removed without removing the apparatus from the drilling or boring machine table to which it is fixed, the top bush fitting is fixed axially, and the bottom bush or fitting is axially adjustable. A base 1, Fig. 1, fixed to the machine table has integral therewith, or 'fixed thereto, standards 10 and a cross-member 11. The central boss 2 of the base is bored and feathered to receive a screwthreaded sleeve 3 containing a bush 9 keyed thereto, and having fitted therein a keyed locating- bush 15. The screw is adjusted by a hand-wheel 4 having a threaded boss 5 and prevented from axial movement by flanges 7 fixed to the boss 2. Alternatively, the sleeve 3 may be integral with the hand-wheel and the boss 2 screw-threaded, the bush being provided with ball thrust-washers. A plate 8 serves to prevent the access of shavings to the screw. The top bush 14 is keyed to a flanged disk 13, which is keyed to a boss 12 in the crossmember. The bushes 14, 15 are of the same shape as the boss of the levers to be drilled, which is adjusted to the correct position by sight and feel. The lever may be supported at its other end by a ledge 19 on a slotted member 17, which is adjustable vertically on a bolt 18 passing through a horizontal slot 27 in one of four members 16 projecting from the member 11. The member 17 also serves as a stop for preventing rotation of the lever. A second stop may consist of a pin fixed to the top bush or disk. For facing purposes, the bushes are replaced by hollow fittings shaped to grip the lever close to the boss. The fittings may also be provided with sleeves. When drilling or boring both ends of a lever, the free end is held by hand on a locating boss on the member 17, and, on reversing the lever, the drilled boss is located by a pin on the member 17. In a modification for drilling tubes, bushes, rolls, &c., the lower bush has a V-recess for the work, the end of which rests against the end of the member 17 for locating purposes. In a further modification, Fig. 4, for boring a universal joint centre, the disk 13 has projecting arms 24 to receive pins 25 for locating and holding the work on the bush 15, and is also provided with a drill bush 34. The disk may be provided with a bush which registers on the top of the work to test the setting. A rule or straight-edge 26 may rest on ledges 27 on the arms 24 to test the depth of cut in spot-facing, so as to ensure that the finished top of the work is in alinement with the ledges.
Patent GB-744842-A (GB)
Title: Improvements relating to processes for stretching artificial filaments and fibres ofproteins
IPC: D01F4/00
Filed: 1953-04-15
Abstract: In the production of artificial filaments by spinning an alkaline solution of a globular, water-insoluble protein into an aqueous acid saline coagulating bath and subsequently insolubilizing the so-formed filaments in an aqueous bath containing an aldehyde, e.g. formaldehyde, and also a soluble salt, the filaments proceeding from one or more spinnerets are submitted, before insolubilization, to a slow progressive stretching by advancing them around at least one pair of spaced, obliquely disposed, conical rollers while being treated with an aqueous acid saline pickling bath, such as that described in Specification 719,319, at at least 20 DEG  C.  A substance capable of polymerizing the protein, e.g. a vegetable or synthetic tannin, or a salt of chromium, zirconium or aluminium, is preferably added to the pickling bath.  The progressive stretching operation may be alternated with phases of uniform tension and/or slight relaxation of the filaments.  The stretched and insolubilized filaments may be further stretched before, during or after washing. As shown (Fig. 1), protein filaments 5 are withdrawn from spinning bath 12 and passed around a pair of small conical rollers 14, 15. They are then advanced over two pairs of obliquely disposed conical rollers 20, 21 and 22, 23, thereby being progressively stretched while under treatment with the saline pickling bath which is applied at 18, 28, 30 and 32. Phases of uniform tension and/or slight relaxation of <PICT:0744842/IV(a)/1> <PICT:0744842/IV(a)/2> <PICT:0744842/IV(a)/3> the filaments may be alternated with the progressive stretching by employing pairs of rollers with interrupted conicity as shown in Figs. 9 and 10, or by alternating a pair of conical rollers with a pair of constant diameter or with a pair having inverse conicity. The rollers may be internally heated. Specification 510,131 also is referred to.
Patent GB-145916-A (GB)
Title: Improvements in and relating to compression taps
IPC: F01L13/08
Filed: 1919-04-26
Abstract: 145,916. Dutton, A. H. April 26, 1919. Starting. - A compression and priming valve comprises an externally-threaded tubular attachment c into which screws a valve member g having a cup-shaped top k communicating with axial lateral bores i, i<1>. The facing part f of the valve member is formed by a reduced integral part h thereof, and the seating f<1> is formed by the reduced central bore d. The cup is fitted with an ebonite or other heat-resisting rim l to form a hand-hold.
Patent GB-1429401-A (GB)
Title: Device for observing waveform repeated at high frequency
IPC: G01B15/00
Filed: 1974-03-08
Abstract: 1429401 Cathode-ray tubes; velocity-modulated tubes UNIVERSITY OSAKA 8 March 1974 [25 June 1973] 10516/74 Heading H1D [Also in Divisions G1 and H4] The invention provides a system for displaying a repetitive short duration pulse (e.g. one picosecond); the pulse may be optical or microwave. In Fig. 1 the pulse is optical, and strikes a photocathode 1 in an evacuated housing E so that an electron beam is emitted having a density waveform corresponding to the optical pulse waveform. The beam passes via anode 2, lens electrodes 3, 4, 5, drift tube 6, cavity resonator 7 having pin-holes 9, 10, screen 13 have a slit or pin-hole 14 to a collector 15. A microwave signal is applied along waveguide 8 to deflect the beam; only at one particular value of the microwave signal will the beam deflection be such that it falls on the collector electrode 15. Fig. 2 shows how this system displays the electron density waveform B corresponding to the incoming optical pulses; the microwave waveform P 1  is synchronized with the incoming pulses, but has a higher frequency as shown, and only when the microwave voltage is V 1  will the beam strike the collector. The microwave voltage is supplied by an oscillator 16, Fig. 1, and phase shifter 17, and by altering the phase shifter the time t 2  in Fig. 2 at which the microwave voltage becomes V 1  is altered so as to scan across the optical pulse B. The phase shift is connected to the X axis of an oscilloscope 23, and the electron beam density is connected to the Y axis to reproduce the optical waveform. Instead of varying the phase shift in Fig. 1, switch 19 can be positioned so that a signal from sawtooth generator 18 is connected to drift tube 6 via transformer 20; this modulates the beam velocity which in effect displaces the waveform B relative to the microwave waveform to produce the time scan. To measure incoming microwave signals the photocathode is replaced by a suitable microwave/electron beam converter.
Patent GB-684759-A (GB)
Title: Improvements in and relating to the synthesis of derivatives of pyrimidine
Filed: 1949-04-21
Abstract: The invention comprises pyrimidines of the formula <FORM:0684759/IV (b)/1> where R is hydrogen, alkyl (1-3 carbon atoms), aryl (not over 7 carbon atoms) or haloaryl (not over 6 carbon atoms) and Ar is aryl, haloaryl, hydroxyaryl, alkoxyaryl, alkylaryl or carbethoxyaryl with 6-13 carbon atoms and not over 2 rings. These are made by condensing an a -aryloxy-b -formyl- or keto-carboxylic ester with guanidine to give the corresponding 4-hydroxy compound; this is then converted into the 4-chloro or 4-thio-derivative with phosphorus oxychloride or pentasulphide (as in Specification 598,514) and finally treated with ammonia to introduce the 4-amino group.  Examples show the production of the following 2 : 4-diaminopyrimidines: 5-p-chlorophenoxy, 5 - m - chlorophenoxy, 5 - o - chlorophenoxy, 5-(21 : 41-dichlorophenoxy), 5 - b  - naphthoxy, 5-p-benzylphenoxy, 5 - p - phenylphenoxy, 5 - p - chlorophenoxy-6-methyl, 5-(61-bromo-21-naphthoxy)-6-phenyl and 5-p-carbethoxyphenoxy; the corresponding 4-hydroxy and 4-chloro compounds are intermediates. 2-Amino-4-thio-5-p-chlorophenoxypyrimidine is also described.  The a -formyl derivatives of ethyl p-chlorophenoxyacetate, ethyl b -naphthoxyacetate and ethyl p-carbethoxyphenoxyacetate are prepared by reacting the esters with ethyl formate.  Ethyl a -(p-chlorophenoxy)-acetoacetate is made by reacting ethyl a -chloroacetoacetate with sodium p-chlorophenolate.  Ethyl a -(6-bromo-2-naphthoxy)-benzoylacetate is made similarly.  According to the Provisional Specification, the pyrimidines of the above formula (R=H) can be made by reacting an aryloxymalonic ester with guanidine, replacing the two hydroxyl groups by chlorine, treating the product with ammonia to give a 2 : 4-diamino-5-aryloxy-6-chloro-pyrimidine and finally eliminating the chlorine atom by reduction.
Patent GB-107105-A (GB)
Title: Improvements in or relating to Turbine Pumps.
Inventor: WIESENGRUND BERNARD
IPC: F04D13/14
Filed: 1916-07-28
Abstract: 107,105. Wiesengrund, B. July 28, 1916. Pumping-machines; driving-gear.- The units p<1>, p<2> of a centrifugal or turbine pump connected in series or parallel are secured by flexible couplings f<1>, f<2> or otherwise to shafts carrying pinions meshing with the same wheel of a speed-increasing or speedreducing gear g directly coupled to the driving motor m.
Patent GB-623154-A (GB)
Title: Improvements in or relating to steam raisers
IPC: F22B1/28
Filed: 1947-04-22
Abstract: 623,154. Steam boilers. GENERAL ELECTRIC CO.. Ltd., and HARVEY. R. April 22, 1947, No. 10741. [Class 123(ii)] A steam raiser comprising a closed vessel 1 with a steam outlet 3 has a standpipe 5 connected with the vessel at a safe minimum water level such that when the water level falls to uncover partially or wholly the connection opening, steam passes through the standpipe 5 to operate safety means arranged, e.g. to give an alarm or to control heating of the water. The heating means may be an electric immersion heater 4, a rod-type cut-out 7 being provided in the standpipe, the rod part of the cut-out being normally surrounded by air or water. The cut-out may be reset by hand or automatically. The vessel 1 may be supplied with water from a ball-valve tank through a pipe 2, a pressure equalizing pipe 8 connecting the steam space in the vessel 1 with the air space in the tank.
Patent GB-330345-A (GB)
Title: Improvements in or relating to brake mechanisms
IPC: F16D51/66
Filed: 1929-04-08
Abstract: 330,345. Crockett, R. A. April 8, 1929. Blocks and shoes acting on drums. - The peripheral thrust of the drum on one shoe of a brake is transmitted to an adjacent shoe through a lever on either side of which the shoes abut. The lever may act with a leverage greater or less than unity so that an equal braking force is obtained from each shoe. As shown in Fig. 5, the shoes 45, 50 and 45, 49 abut on either side of levers 48, 47 and the shoes 49, 50 are connected by a floating pivot 58. With clockwise rotation of the drum 46, when radial pressure is applied to the shoe 45 by a cam 43, plunger 44 and a bar 44<a>, the friction drag on the shoe 45 is transmitted through the lever 47 to the shoe 49 and from this shoe to the shoe 50 which abuts against the stop 52. With opposite rotation of the drum the thrust of the shoe 45 is transmitted through the lever 48 to the shoe 50 and the shoe 49 abuts on a stop 51. The end of the levers 47, 48 may be tapered as shown to assist in forcing the shoes outwardly. Fig. 4 shows an arrangement in which the thrust of a relatively small shoe 37 is transmitted through levers 40, 41 to either of two shoes 39, 38 according to the rotational direction of the drum. Each of the shoes 38, 39 is provided with a pair of projections 28, 31 for engagement with a lever 42 whereby the thrust of the one shoe is transmitted to the other with a leverage less than unity. The levers 40, 41 act with a leverage greater than unity. The arrangement may thus be such that an equal braking force is obtained from each shoe. An arrangement of three equal shoes is also described in which the levers 40, 41 act with a leverage less than unity, the lever 42 acting as in Fig. 4 whereby in this case also an equal braking force is obtained from each shoe. In a further construction the adjacent ends of a pair of shoes are arranged to be forced against the drum by a common thrust member, a third shoe being disposed between the two shoes with the interposition of levers such as described above and a stop being disposed between the adjacent ends of the two shoes. The actuating shoe may be applied to the drum by a hydraulic piston which may also be mechanically actuated by an arm in the event of failure of the hydraulic pressure. Compensating for wear. The floating pivot member 58, Fig. 5, of the shoes 49, 50 comprises right-and-left handed threaded parts screwing into the shoes for adjusting them. Access to the member 58 is obtained through a hole in the fixed back plate of the shoes, this hole being closed by a plate against which the part 58 normally engages to prevent undesired rotation thereof. The pivot of the tapered levers such as 47, 48, Fig. 5, may also be radially adjustable for the same purpose.
Patent GB-1442571-A (GB)
Title: Thread storage feeder for textile machines
IPC: B65H51/22
Filed: 1974-03-11
Abstract: 1442571 Knitting machines IRO AB 11 March 1974 [12 March 1973 12 Sept 1973] 10769/74 Heading D1C A thread storage feeder for textile, e.g. knitting, machines which is alternatively operable in a positive-feed or an intermittent thread withdrawal mode comprises a rotary (Fig. 1) or stationary (Fig. 3) storage drum 1. 21 on which the thread F is wound and displaced axially to form a reservoir V. and a thread guide 13, 36 shaped, e.g. as a hook. so as not to enclose the thread and mounted for movement between a first position as shown wherein the guide engages the thread F' being withdrawn from the drum to prevent withdrawal at a rate faster than that of winding and thereby to ensure positive feeding of the thread and a second position wherein the guide does not engage the thread and allows the latter to be withdrawn from the reservoir V as required. Inclined displacement discs 7 and 30 produce said axial displacement of the thread on the drum. In the Fig. 3 embodiment the disc 30 is rotatably mounted on a winding disc 26 which rotates to wind the thread on the stationary drum 21 and which carries the thread guide 36. The thread guides shown are pivotally mounted, with the guide 13 being lockable by resilient means 14 in its two positions, but a slidably mounted guide may be used instead. In the Fig. 1 embodiment the thread is withdrawn axially of the drum over a rim 1a thereof and through a brake ring 8. Stop motions or other thread-monitoring devices 6, 10 and tensioners 4, 5 are also provided.
Patent GB-1064127-A (GB)
Title: Friction elements for brakes or clutches
IPC: F16D69/02
Filed: 1964-03-13
Abstract: Flexible friction material is obtained by intimately mixing a basic mixture comprising fibrous material containing natural cork particles, a binding agent comprising oil-resistant synthetic rubber and a thermosetting resin, which mixture has been hardened, pressed and subsequently comminuted, with an additional mass of oil-resistant sythetic rubber in the proportions of between 70% and 90% by weight of the basic mixture to between 10% and 30% by weight of the additional oil-resistant synthetic rubber.  The oil-resistant synthetic rubber in the basic mix is chloroprene latex and that forming the additional mass is preferably acrylonitrile rubber, the thermosetting resin is preferably a phenol-formaldehyde resin and the fibrous material is asbestos or a mixture of asbestos and cotton fibre.  The mix may also contain conventional vulcanizing agents, e.g. sulphur, and friction material filler, e.g. zinc oxide and/or soot.
Patent GB-708194-A (GB)
Title: Improvements in process and apparatus for the production of chloromethanes, particularly methylene chloride and chlorethanes
IPC: C07C17/16
Filed: 1951-05-08
Abstract: Methylene chloride is continuously produced by maintaining a stirred boiling mixture of methanol, hydrochloric acid and water in an esterifying zone, passing the product of chlorination of methyl chloride in vapour phase through the mixture in the esterifying zone to cause further production of methyl chloride from methanol and the hydrogen chloride present in the chlorination product, supplying fresh methanol to the mixture in the esterifying zone in proportion to the amount of methyl p  chloride produced therein, and treating the vapours which are continuously distilled from the esterifying zone for separation of methylene chloride and of methyl chloride, the separated methyl chloride being subjected to vapour phase chlorination to yield a product which is recirculated to the esterifying zone.  Fresh methanol supplied to the esterifying zone is preferably passed countercurrent to the vapours issuing from the esterifying zone so as to act as a scrubbing agent.  For starting the reaction it is necessary to use hydrogen chloride from an extraneous source, after which hydrogen chloride required for esterifying methanol is supplied continuously from conversion of methyl chloride to methylene chloride.  Hydrogen chloride from any source may be used initially but it is preferred to feed hydrogen and chlorine into the zone where the methyl chloride is chlorinated so as to produce hydrogen chloride, cutting off the hydrogen supply as soon as a sufficient amount of methyl chloride has been produced.  The chlorination of the methyl chloride is preferably carried out in the presence of a catalyst such as activated carbon.  In order to operate the process continuously the water formed during the formation of methyl chloride is removed as soon as it is produced. The process may be adapted for the manufacture of chloroform or carbon tetrachloride. The methyl chloride and methylene chloride are recycled to the chlorinating zone.  The process may also be adapted to the production of chloro derivative of ethane from ethanol and chlorine.  Other suitable chlorination catalysts which may be used are bone carbon and metal chlorides capable of acting as chlorine exchangers, such as ferric chloride, aluminium chloride, antimony chloride and molybdenum chloride. Esterification catalysts, e.g. sulphuric acid, zinc chloride and magnesium chloride may be used for the esterification reaction.
Patent GB-884567-A (GB)
Title: Improvements in and relating to leadscrew devices and their application in electrical switchgear
Inventor: MOLYNEUX JOHN
IPC: H01H3/40
Filed: 1957-04-03
Abstract: 884,567. Screw and nut gearing. ENGLISH ELECTRIC CO. Ltd. March 28, 1958 [April 3, 1957], No. 10874/57. Class 80 (3). [Also in Group XXXVII] In screw and nut gearing particularly applicable to a jack for the raising and lowering of electrical switchgear units (see Group XXXVII) means are provided for locking the screw and nut in one or more preselected positions. A rotatable screw 10 co-operates with a nut 11 adapted to effect a linear movement through a tubular extension 14 of the nut of a member to be controlled. Mounted upon the nut 11 for a limited relative rotation thereto is a tubular member 15 carrying a locking mechanism 12 comprising a radially movable pin 13 on a slider 16 co-operating with one of a number of slots in an extension 18 of the nut 11 and one or more holes 10a in the screw 10. The slider 16 is urged by a spring 17 so that the pin 13 rides along the top of the thread of the screw until it reaches a hole 10a which it then enters to lock nut to the screw. The tubular member 15 is rotated relative to the nut in order to release the locking action by means of a cam ring 22 secured to the member 15 which engages a roller 24 on the slider 16 to move it against the spring 17 and withdraw the pin 13 from the hole 10a. The member 15 is subjected to spring action to reset the locking mechanism for another action but is temporarily held by the roller 24 engaging a notch 22a in the cam ring 22 but is released by a chamfered edge of hole 10a further lifting the pin 13 on renewed rotation of the screw to move slider 16 further and release notch 22a. A series of holes 10a may be provided along the screw for successive locking positions. In assembly the locking pin 13 may be engaged with any of the slots in the nut extension 18 to adjust the locking position and the tubular member 15 together with the mechanism 12 may be adjusted axially to ensure alignment of the pin with the hole 10a. The cam ring 22 may also serve as an additional lock against the slider 16 when the pin 13 is engaged.
Patent GB-471446-A (GB)
Title: Improvements in and relating to storing and preserving local anaesthetic solutions lible to decomposition upon oxidation
IPC: A61J1/06
Filed: 1936-04-15
Abstract: 471,446. Packages. NOVOCOL CHEMICAL MANUFACTURING CO., Inc. April 15, 1936, No. 10905. Convention date, May 10, 1935. [Class 94 (i)] A number of glass containers 1, of the kind adapted to be inserted in hypodermic syringes, having fixed seals 2 at one end and being closed at the lower ends 3 by pistons of rubber, are inserted in a metal can 5 having an hermetically sealed end 6. A corrugated end disc and liner 9 are added, and the bottom 11. is hermetically applied. The can may be wholly or partially evacuated, or filled with an inert gas such as nitrogen or carbon dioxide at atmospheric pressure.