baber/WOPTO huggingface dataset:
Patent GB-852615-A (GB)
Title: Apparatus and method for biological assays
IPC: C12M1/36
Filed: 1959-02-03
Abstract: 852,615. Apparatus and method for biological assays. TECHNICON INSTRUMENTS CORPORATION. Feb. 3,1959 [March 7,1958], No. 3857/59., Class 81(1) Biological assays and like monitoring and control procedures are performed by a method characterised in that there is formed a flowing fluid stream containing an inoculum e.g. bacteria and a nutrient therefore and there is introduced into the stream, by dialysis, a substance the effect of which on the inoculum is to be ascertained. In the apparatus described for carrying out the process of the invention, nutrient and inoculum, from reservoirs 24 and 26 contained in a refrigerator or cooler 28, and air pass, in tubes 12, 14 and 20, through a proportioning pump 10 of the type described in Specification 817,070 and meet to form a common supply line 46 through which the combined fluids pass to the mixing coil 42 and thence through one side of the dialysing cell 50. Tubes 18, 22 and 16 carrying water, air and the test substance respectively similarly pass through the pump, meet, and the combined fluids therefrom pass through the mixing coil 44 on the opposite side of the dialyzing cell. One or more test substances or a single substance in different concentrations are derived in separate quantities from the rotary supply device 30, which is of the type described in Specification 834,635, via the pivotably mounted pick up tube 34 which is moved in and out of successive receptacles in the supply device in timed relation to the intermittent rotary movement thereof. There is thus supplied test substance in discrete amounts which pass through tube 16 separated by intervening air segments. In the dialyser which is of the type described in Specification 827,924 comprising two mirror-duplicate, co-registering spiral channels in a pair of plates separated by the dialysing membrane (see Fig. 3), the test substance diffuses across the membrane in to the inoculum/nutrient stream in an amount proportional to its concentration in its own fluid stream. On leaving the dialyser, the test substance stream is rejected via tube 60 and the stream now containing inoculum, nutrient and test substance passes via tube 62 to the tubular coil 68 in incubator 66. From thence it passes via tube 70 and "blinder" 72, wherein the liquid segments are consolidated and freed from air, to the flow cell of a continuous flow type colorimeter 78 which is coupled to the continuous recording device 82 which indicates the output of the colorimeter photocell.
Patent GB-745783-A (GB)
Title: Improvements in rotating electrostatic machines producing a periodical discharge
Inventor: MENNESSON BERNARD
IPC: H02N1/08
Filed: 1954-02-10
Abstract: 745,783. Electrostatic generators. SOC. D'APPAREILS DE CONTROLE ET D'EQUIPEMENT DES MOTEURS S.A.C.E.M. Feb. 10, 1954 [Feb. 12, 1953], No. 3937/54. Class 35. Charges pass to and from the charge-carrying plates of an induction electrostatic generator across very small air-gaps between the mutually rotating parts. As shown for a machine with external rotor 3 having charge inducing plates 1, 2, the charge carrying plates 4, 5, 6, 7 pass alternately within sparking distance of earthing studs 19 and load discharging studs 20. The gaps are preferably between 0.02 and 0.04 mm. Specification 715,010 is referred to.
Patent GB-547914-A (GB)
Title: Improvements in apparatus for feeding powdered material
IPC: B65D88/68
Filed: 1941-03-25
Abstract: 547,914. Hoppers. HOBBS,E.M. March 25, 1941, No. 4008. [Class 78 (i)] A container 1 housing mechanism 5, 6, 7, 8, 9, 10 for uniformly discharging powdered material is fitted with a hopper 13 having a neck of smaller diameter than that of the container. The neck splays outward at 14 to form a cover 15 having a flange 18 taking over the container top edge, and screw bolts 17 engaging slotted lugs 16 retain the hopper in place. A lid 12 closes the hopper. Specifications 210,054, [Class 78 (iv)], and 289,275, [Class 78 (i)], are referred to.
Patent GB-912977-A (GB)
Title: Central nervous system stimulant compositions comprising 5-phenyl-2-methylimino-4-oxazolidinone and salts thereof
IPC: A61K31/00
Filed: 1961-02-03
Abstract: 5-Phenyl-2-methylimino-4-oxazolidinone is prepared by the reaction of 5-phenyl-2-imino-4-oxazolidinone with a methylating agent, e.g. dimethyl sulphate, methyl iodide, methyl bromide or methyl p-toluenesulphonate, in the presence of an acid acceptor. In the specific example dimethyl sulphate is used in sodium methoxide/methanol.ALSO:Pharmaceutical compositions in unit dosage form having a stimulant effect on the mammalian central nervous sytem comprise a carrier and 5 - phenyl - 2 - methylimino - 4-oxazolidinone which in one tautomeric form has the structure <FORM:0912977/VI/1> or an acid addition salt thereof.  The compositions may be in forms suitable for oral, rectal and parenteral administration e.g. a tablet, dragee, capsule, drops, emulsions, suspension, syrup, candy, chewing gum or suppository.  Unit dosage forms may comprise between about 1 and 100 m.g. of the active compound.
Patent GB-692990-A (GB)
Title: Improvements in or relating to radio direction finders
Inventor: EARP CHARLES WILLIAM
IPC: G01S3/54
Filed: 1950-02-17
Abstract: 692,990. Radio direction finding. STANDARD TELEPHONES & CABLES, Ltd. Feb. 9, 1951 [Feb. 17, 1950], No. 4140/50. Class 40 (vii). In a R.D.F. system the received signal energy is phase modulated by means of a cyclically commutative connection between the receiver and the aerials of a circular array of aerials as described in Specification 594,530; the reaction from the metal supporting mast is suppressed either by a circuit arrangement or by a particular aerial array. As shown, a ring of nine aerials is connected via the electronic commutator 102 and receivers 101, 105 to the phase splitting circuit 114 at the points x<SP>1</SP>, y<SP>1</SP>, n, y of which, D.C. potentials are developed. The latter are applied through the condenser, rectifier and resistor networks 116, 117, 118 to the cathode follower valves 119, the outputs of which at x<SP>1</SP>, y<SP>1</SP>, x, y, are applied to the discriminator circuit, described in Specification 629,444, and to a further rectifier system. With phase steps of appreciable magnitude occurring at the aerials the output from the further rectifier system, as AA<SP>1</SP>, comprises the even harmonics of cycliccommutation frequency. Similarly, the output from known discrimination circuit at BB<SP>1</SP> contains the fundamental frequency and odd harmonics and when compared, in phase, with the output at CC<SP>1</SP> from reference generator 104 will yield an unambiguous bearing measurement, which may be indicated as known CRO display devices. In further embodiments, not shown, either two adjacent aerials of the circular array are connected in opposite senses, simultaneously to the receiver or each aerial is formed of an Adcock pair and is connected singly to the receiver.
Patent GB-162122-A (GB)
Title: Improvements in candle or lamp holders
IPC: F21V35/00
Filed: 1920-02-11
Abstract: 162,122. Ross, R. J. Feb. 11, 1920. Brackets, lamp and candle. - For mounting a candle or lamp on a dressing-table, mirror, &c., the holder comprising' a base 11 and socket 8 is carried on an arm 6 pivoted to a head 3 which has two jaws 1 pivoted or spring-connected thereto. The jaws are caused to grip the side of the mirror &c. by a screwed pin 4 and nut 5.
Patent GB-865884-A (GB)
Title: Improvements relating to recoilless firearms
IPC: F41A1/08
Filed: 1960-02-05
Abstract: 865,884. Recoilless firearms. BOFORS A. B. Feb. 5, 1960 [Feb. 25, 1959], No. 4176/60. Class 92. Relates to a recoilless firearm of the type comprising a gas exhaust funnel 3 Fig. 5 hinged to the barrel 1 so that the funnel can assume a position in which it forms a coaxial extension of the barrel and a position which permits loading and unloading, the barrel and funnel being provided with a dog clutch, screw clutch or similar coupling 4, 5 by means of which the funnel can be secured to or released from the barrel through a relative turning movement and a firing device comprising a transversely movable striker 14 arranged at the rear of the barrel. According to the invention the striker 14 is actuated by a spring loaded rod 12 which is moved longitudinally by means of a cam member 10, Fig. 6 fixed to the funnel 3 during turning movements thereof and a detent 15 on the barrel is brought into engagement with and disengaged from the striker 14 by the funnel at the beginning of the turning movement of the funnel in the direction of release and at the end of the turning movement of the funnel in the direction to secure the funnel, respectively. The barrel and funnel are hinged as shown, one part of the hinge 6 being provided with a bearing 7 in which the funnel 3 is rotatably supported, rotation being affected by means of a handle 11. The rod 12 is formed with oblique surfaces 13 for co-action with corresponding surfaces on the striker 14. On the rear of the barrel there is movably mounted a detent 15 provided with a groove into which extends a pin fixed to the clutch part 5 of the funnel 3. The rod 12 is provided with a recess 19 for co-action with the detent 15. When the funnel is turned to secure it to the barrel, the cam 10 is moved away from the rod 12 which is latched in its front position, so that on firing, the rod 12 can be displaced to actuate the striker 14. After firing, the funnel 3 is turned to disengage the parts 4. 5, the cam 10 moves the rod 12 forward so that it is latched in its front position and the striker 14 is moved outwards by the surfaces 13 on the rod 12. During the last stage of the turning pin on the clutch part 5 moves the detent 15 into the recess 19 in the rod 12 and prevents the rod 12 from moving. When the funnel 3 is again turned outwards, an actuating surface 8 on the hinge 6 actuates an ejector arm 9 to eject the cartridge case. After a new round has been inserted the funnel 3 is again closed and the rod 12 is locked by the detent 15 until during the last stage of turning it is actuated by the pin on the part 5 and moved out of the recess 19 in the rod 12 to free the rod 12 for firing.
Patent GB-640318-A (GB)
Title: Automatic electric switches having interengaging plug and socket components
IPC: H02B1/056
Filed: 1948-02-12
Abstract: 640,318. Automatic circuit-breakers. LANDIS & GYR SOC. ANON. Feb. 12, 1948, No. 4179. Convention date, Feb. 15, 1947. [Class 38(v)] A circuit-breaker which is incorporated in a plug 2 and cannot be re-closed until the plug is withdrawn from the socket 1, is re-closed in a single operation by an easily-accessible re-closing member. A yoke 7, Fig. 1, embracing the plug 2 and re-set button 6 is normally held between the plug and the socket but on withdrawal of the plug can be slid in guides 8 to depress the button 6 and re-close the breaker. Extensions 9 may be provided on the plug adjacent each side of the yoke 7 to prevent access to the button. In Fig. 3 a contact strip 12 is normally held to bridge the plug pins 4 by a bimetal strip 14 heated by a series coil 14a. Resetting of the breaker is performed by a dog 13 on the push-button spindle 11 which cannot be moved when the plug is in the socket. In Fig. 4, a lever 17 pivoted to the socket and attached to the plug by a spring 18 re-sets the breaker by a dog 19 after withdrawal of the pins 4 from the socket contacts 5. The plug may alternatively be of the screw-in type.
Patent GB-1172892-A (GB)
Title: Method of and apparatus for Dispensing Liquid by Gas Pressure
Inventor: INGLEFIELD SAMUEL
IPC: B01L99/00
Filed: 1967-01-27
Abstract: 1,172,892. Dispensing liquids by gaseous pressure. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 15, 1968 [Jan. 27. 1967], No.4208/67. Heading F1R. A liquid sample compartment 4 is filled from an upper chamber 1, overflowing liquid collecting in chamber 2. Subsequently chamber 2 or both chambers 1, 2 are pressurized to discharge the compartment 4 to the outlet 5 and return the liquid in the chamber 2 to the chamber 1 by the pipe 6. The device may be used to inject liquid into a gas chromatography apparatus and may be operated by the inert gas flowing thereto Fig. 2 (not shown).
Patent GB-1503571-A (GB)
Title: Organic reagents
IPC: C07D213/16
Filed: 1975-01-31
Abstract: 1503571 Extraction of copper and iron from solution YEDA RESEARCH & DEVELOPMENT CO Ltd 31 Jan 1975 [8 Feb 1974] 4243/75 Addition to 1489428 Heading C1A [Also in Divisions C2 and C3] A modified polystyrene resin obtained by reaction of polystyrene with 5-chloromethyl-8-hydroxyquinoline is used in Example 9 to extract copper from a solution of copper sulphate and iron from solutions of ferric chloride.
Patent GB-247607-A (GB)
Title: Improvements in and relating to braking systems for electric motors
IPC: B66B1/08
Filed: 1926-02-15
Abstract: 247,607. British Thomson-Houston Co., Ltd., (Assignees of Jones, B. W.). Feb. 14, 1925, [Convention date]. Drawings to Specification. Motors, controlling.-For stopping a reversible electric motor, as in the operation of lifts, an electromagnet which holds off a brake during movement is gradually weakened by insertion of resistance to an extent depending on the back electromotive force of the motor and on the magnitude of rheostatic braking in a short-circuit around the motor armature, with a time element depending on the arrangement of controlling relays. Full details of the sequence of operations are given in the Specification with the aid of a diagram showing a system of contactor and switch connections.
Patent GB-1119101-A (GB)
Title: Buckle for straps
IPC: A44C5/20
Filed: 1966-02-01
Abstract: 1,119,101. Buckles. J. V. CATTIN. 1 Feb., 1966 [16 Feb., 1965], No. 4343/66. Heading E2A. A buckle for connecting the two end portions 2, 13 of a strap with each other having a channel-shaped bottom member 1 hinged to a cover 5 and for attachment to one of the strap end portions 2, the said channelshaped bottom member having notch means 4 in its flanges 3 extending from the free edges of said flanges, the said notch means being provided to receive projections 14 fixed to the other end portion of the strap, is characterised in that the cover near the hinge axis comprises a portion 6' co-operating with a springy tongue 9 of the bottom member, to bias the cover both to a raised releasing position and to a fastening position in which in use the cover prevents release of the projections from the notch means. The flanges 3 are each provided with bosses 11 which are engageable with recesses 12 in the flanges 10 of the cover to prevent inadvertent movement of the cover from the fastening position. The flanges 10 are cranked in order to clear the projections 14 when the cover is in the closed position. There are a plurality of pairs of notches so that the strap end portion 13 can be engaged with the channel-shaped member in a plurality of positions.
Patent GB-660898-A (GB)
Title: Improvements in and relating to the cylinder heads for air-cooled internal-combustion engines
IPC: F02F1/34
Filed: 1949-02-17
Abstract: 660,898. Cooling cylinders. PORSCHE KONSRUKTIONEN GES. Feb. 17, 1949 [May 13, 1948], No. 4349/48. Class 7(ii)  In a cylinder head for air-cooled internalcombustion engines with a combustion chamber 1 upon which the cooling air firstly impinges and is divided by the chamber 1 and intermediate walls 14, 15 into a middle and two lateral 'air streams, it is arranged that the middle stream and portions of the lateral streams unite in an equalizing chamber 26 behind the combustion chamber 1. The side walls of the head are provided with horizontal cooling ribs 13 that are longer at' the outlet than the inlet side. The push-rod guides 7 and 8 on either side of the chamber 1 are extended to form the intermediate walls 14 and 15 whilst the valve-rod guides 5 and 6 are also extended to form walls 16 and 17; the walls 14, 16 and 15, 17 form lateral channels 18 and 19 having vertical ribs 24, 25, respectively, therein, the channel entrances being devoid of ribs. The air flows in the direction of arrow R and divides upon meeting the head, a part traversing a central chamber 22, provided with vertical ribs 23 and formed between walls 14 and 15, thus cooling the chamber 1, the remainder dividing and flowing through channels 18 and 19; after reuniting in equalizing chamber 26 the air stream traverses a further chamber 28, also provided with vertical ribs, located between the inlet and exhaust ports 2 and 3. Some air from the lateral streams also flows through the ribs 13 to cool the sides of the head. The top of channels 18, 19 and chamber 22 are closed by a part of the head, which also may have ribs co-operating with ribs 23, 24 or 25, whilst chamber 28 is closed by a part of the head and a part of a metal cover, not shown, around each cylinder. The side walls of the head extend obliquely outward to form, with the cover, a nozzle to force more air into channels 18 and 19. The Specification as open to inspection under Sect. 91 comprises also a modification in which the invention is applied to an engine without a combustion chamber. This subject-matter does not appear in the Specification as accepted.
Patent GB-1417645-A (GB)
Title: Variable volume and controlled density forming mechanism for  compression moulding presses
IPC: B29C43/32
Filed: 1973-01-29
Abstract: 1417645 Compression moulding apparatus PENNYWALT CORP 29 Jan 1973 [15 March 1972] 4432/73 Heading B5A A compression moulding press for thermosetting material includes an injector screw which plasticizes a powder charge and injection moulds it into a preform which is immediately delivered to the mould cavity of the press where it is shaped by a plunger; the injection mould has an adjustable end wall whereby the preform volume may be varied. Powdered material is fed from a hopper 52 to a plasticizing section B comprising three screw-type injection cylinders 46, 48, 50 feeding three cups C1-C3 adjustably supported in a housing 72 moved horizontally by hydraulic motors 78, 80 to bring the cups against injection nozzles 66, Fig. 5. The volume of each cup is varied by an adjustable rear wall 86 forming part of a spindle 88 threaded to the cup. When fully charged, the cup is moved rearwardly and operates a switch 100 stopping the feed screw. By adjusting the air pressure in the chamber 82 in which the cup slides the density of the preform may be varied. Each cup has a hollow ejector finger 110 carried by a bar assembly 112 urged towards the housing 72 by springs 124. On initial retraction of the cups from their nozzles the fingers hold the preforms against the nozzle faces; when the fingers extend into the cup cavities, outlets 140 are exposed and air cooling of the cups is effected. The preforms are removed from their nozzle faces by a cut-off head E including three blades causing the preforms to fall into a shoot delivering them to three feed tubes leading to pockets in a feedboard 180. When a predetermined number of preforms have been deposited, the feedboard transfers them into rows of cavities 28A, 28B, 28C in a stationary heated mould plate 28 of the press. The upper heated part 34 of the press is moved vertically by a cylinder 20 and includes plungers aligned with the cavities. Ejector pins 36 depending from a bar 38 remove the moulded components from the part 34, and a duct 40 delivers the components to a bin.
Patent GB-143606-A (GB)
Title: Improvements in or relating to feeding apparatus for glass-bottle machinery and the like
IPC: C03B7/16
Filed: 1919-02-22
Abstract: 143,606. Olsen, S. D. Feb. 22, 1919. Delivering molten metal.-Relates to apparatus for charging parison moulds C, mounted on a rotating table B, from a tank A. The stream A<1> of molten metal is cut into charges a<1> by shears E. Each charge drops into a trough a, which is oscillated by a cam D<1> and levers b<1>, b<2>, b<3>. The charge is laid out in the trough a in the form of a strip as the trough a moves to the right, and is then shot into the mould C, or into a trough leading to it, when the trough a moves to the left, as shown in dotted lines.
Patent GB-287546-A (GB)
Title: Improvements in removable sleeves for protecting the wrist and forearm
IPC: A41B7/12
Filed: 1928-02-13
Abstract: 287,546. Pechadre, H. March 25, 1927, [Convention date]. Cuff and sleeve protectors; sleeves.-A removable sleeve or protector a capable of being drawn over the arm and wrist, is made of waterproof or other textile fabric to the form indicated in the drawing, a loop c' being provided to engage between the thumb and under finger to prevent the sleeve "riding up." Preferably, also, elastic bands band c are provided.
Patent GB-331878-A (GB)
Title: New or improved method of and means for the production of barium monoxide
IPC: C01F11/06
Filed: 1929-02-11
Abstract: 331,878. Shine, G. T. Feb. 11, 1929. Retort furnaces; discharging; emission of hot gases, preventing.- In a retort setting for tho production of barium monoxide by heating a mixture of barium carbonate and carbon, the charging floor for the vertical retorts 1 is spaced from the upper ends of the retorts to form a flue 13. through which an air current is passed to carry away fumes when the retorts are open for charging. The retorts are arranged in two lines, and the setting is fired from both ends. Each retort is sealed to the brickwork by infusible sand 8. and asbestos rope 7 at the lower and upper ends respectively, and during operation is covered by a lid 6. Discharge of material is controlled by a separate slide 9 for each retort, by an apertured sliding plate common to a line of retorts, or by a rotary hit-and-miss plate for a group of four retorts. The rotary plates of a number of groups may be interconnected for simultaneous operation by forming them as intermeshing gear wheels, or they may be operated by racks or by worm gearing. The charging-floor has a removable cover 14 corresponding with each retort. Specifications 1982/85. 10476/91, and 2133/07 are referred to.
Patent GB-687946-A (GB)
Title: A process for the production of boron carbides
IPC: C01B31/36
Filed: 1950-02-22
Abstract: Boron carbide powders are produced by heating a charge containing carbon, calcined boric acid or a salt thereof, e.g. alkali or alkaline earth metal borates such as dehydrated sodium borate, and magnesium or magnesium alloy at a temperature below the melting point of the carbide, e.g. 930 DEG -2000 DEG C, and subsequently separating the boron carbide by leaching with hot dilute hydrochloric, sulphuric, or nitric acids.  The product may then be filtered, washed and dried.  The particle size of the carbide is determined by the reaction temperature and the fineness of the magnesium or alloy, increasing temperature and increasing fineness giving increased particle size.  The heating may be in a tube furnace in an inert or reducing atmosphere, e.g. burnt town gas, nitrogen, or hydrogen. More than the theoretical amount of boron-containing material should be present and the composition of the final product depends on the magnesium/carbon ratio, e.g. 15.1 for B4C.