baber/WOPTO huggingface dataset:
Patent GB-667820-A (GB)
Title: Electrically conducting liquid column thermostat and method of making same
IPC: G01K5/16
Filed: 1950-02-09
Abstract: 667,820. Mercury switches. VAPOR HEATING CORPORATION. Feb. 9, 1950. [Feb. 17, 1949] No. 3372/50. Class 38 (v). [Also in Group XXXVI] A mercury or other liquid column thermostat has its contacts extending entirely through the glass tube on a line which intersects the bore at one side thereof, so that a portion 17 of the side surface of each contact wire 15 makes contact with the liquid column. In manufacture, the tube is severed at the locations where the contact wires are to be inserted. In each case the wire 15 is placed on the end of a section of the tube so as to form a chord, Fig. 3, and the ends of the wire are connected by clamps 20, 21 to a source of high frequency current so that the glass adjacent the wire.is heated. Pressure is then applied to the wire 15 so as to embed it in the glass, Fig. 4, and the adjacent sections of the tube 18, 19 are then fused together while cool air is passed through the bore to prevent molten glass flowing over the wire, the bulb 11 not being formed until after the contact wires have been fixed in place. The two ends of each contact wire are connected to a metal ring 14a or 15a surrounding the glass tube.
Patent GB-540640-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/04
Filed: 1940-02-23
Abstract: 540,640. Electron multipliers. BOSCH, F. J. G. VAN DEN., and VACUUM-SCIENCE PRODUCTS, Ltd. Feb. 23, 1940, Nos. 3474/40 and 3864/41. [Class 39 (i)] An electron multiplier of the type in which the secondary electrodes consist of apertured grids or plates comprises a series of such electrodes so spaced, and at such potentials, that the field between two succeeding electrodes is less than that between the following pair in the direction of motion of the electrons. Fig. 1 shows a construction in which the potentials of the electrodes 14 increase uniformly and the intervals between the electrodes decrease as shown. The apparatus also comprises a cathode 11, control grid 12, accelerating electrode 13, a final multiplying electrode 15 of plate form and a collecting electrode 16. The electrodes may be uniformly spaced and the difference of potential between them increases from one pair to the next. Between electrodes arranged as described may be placed intermediate electrodes at the same potential as the succeeding electrodes. The number of apertures in the secondary electrodes may increase as the collecting electrode is approached. The electrodes may be made of perforated plates constructed as described in Specification 516,621 and provided with auxiliary electrodes as described in Specification 531,541.
Patent GB-871160-A (GB)
Title: Improvements in and relating to gramophone pick-ups
Inventor: JAMES KENNETH
IPC: H04R17/08
Filed: 1958-02-03
Abstract: 871,160. Stereophonic pick-ups. GARRARD ENGINEERING & MANUFACTURING CO. Ltd. Jan. 28, 1959 [Feb. 3, 1958], No. 3476/58. Class 40 (4). A pick-up utilizes two piezo-electric transducers 1 and 2 each with an independent operating arm 12, the arms 12 crossing over each other to form a yoke in which works a single common stylus arm 13. The transducers are twistors clamped between pressure pads 8a and 8b by cover plates 5 and 6 on each of two casing members 3 and 4 bolted together to hold the planes of the transducers at 90 degrees to each other and at 45 degrees to the horizontal. Secured about the end of each transducer is an operating arm 12 of plasticized polyvinylchloride the lowermost ends of these arms being shaped to overlap and slidably engage the downwardly cranked stylus carrying end of the arm 13. The casing members 3 and 4 when bolted together leave a square-sectioned channel into which is push fitted a block 16 containing a resilient plug 15 to mount the stylus arm 13 so that the arm may twist or tilt. A tab at the end of block 16 enables this to be drawn out for easy replacement of stylus arms. Electrical connections are made between strips 10 from the transducers and tag clips 11 on each casing member 3 and 4. The Provisional Specification refers to the use of variable reluctance and moving-coil transducers.
Patent GB-789533-A (GB)
Title: Manufacture of n-alkylated acid amides
Inventor: WOLFRAM ARTHUR
IPC: C07C233/00
Filed: 1954-02-05
Abstract: N-alkylated aliphatic amides are prepared by heating an aliphatic carboxylic acid amide having at least one hydrogen atom in the amido group, or an ammonium salt of the corresponding aliphatic acid or a mixture of ammonia and a C1-4 alkanol ester of the acid, and heating it with an amount of at least 2 mols. per mol. of amide or salt or ester and ammonia, of a C1-4 alkanol or a C1-4 alkanoic acid ester thereof, in the absence of catalyst, at a temperature of from 150 DEG to 300 DEG  C. and at an elevated pressure.  The ammonium salts of the aliphatic acids and the mixtures of ammonia and C1-4 esters of the acids yield in situ the corresponding amides to be alkylated. The alkylation reaction may be carried out in the presence of carbon monoxide or ammonia to suppress decomposition of the alkylated amide product; carbon monoxide may be used under 1-500 atmos. (gauge) and ammonia under 1-100 atmos. (gauge).  The alkylating agent may be used in an excess of up to 20 mols. per mol. of amide.  N-methylation or ethylation of a mono-N-alkylated amide is preferably effected in the presence of mono-methylamine or mono-ethylamine respectively.  The process may be carried out in a silver pressure vessel.  In typical examples, reaction being effected in an autoclave: (1) formamide is heated with 2 molar proportions of methanol in the presence of ammonia under a 100 atmos. pressure of CO at 220 DEG  C. yielding a mixture of methyl- and dimethyl-formamide; (4) monomethyl formamide and methanol (2 mols.) are heated in the presence of methylamine at 250 DEG  C. to give dimethyl formamide; (5) ammonium formate and methanol (2 mols.) are reacted at 250 DEG  C. to yield methyl and dimethyl formamide; (9) formamide is reacted with ethanol at 250 DEG C. under 150 atmos.  CO pressure to yield mono-and di-ethyl formamide; (11) acetamide is heated with methanol (3 3/4 mols.) and ammonia at 250 DEG  C. yielding mono- and di-methyl acetamide; (12) methyl formamide is heated with methyl formate at 250 DEG  C. yielding dimethyl formamide.  Other specified reagents are propionamide, butyramide and oleic acid amide and the propanols and butanols and their C1-4 acid esters.  Specifications 352,517 and 517,143, [both in Group IV], open to inspection under Section 91, are referred to.
Patent GB-544156-A (GB)
Title: Improvements in and relating to carriers for plates, dishes and other vessels
IPC: A47G23/06
Filed: 1940-09-26
Abstract: 544,156. Stands and mats for table use. FERGUSON, W. HAIG-, and FERGUSON, C. HAIG-. Sept. 26, 1940. No. 3500/42. Divided out of 544,154. [Class 128] A carrier for plates, dishes, &c. is formed with depending flanges 3 affording sockets or recesses for the reception of mats a provided with suction devices b adapted to project through openings 4 in the carrier, which mats may as shown be constructed according to Specification 544,154. The carrier which is of oval shape is formed with a downturned rim 2 and is provided at the ends with springy bail handles 6 which carry spring clips 7 provided with pads 8 adapted to engage the ends of a dish or other vessel B placed thereon. The mats a are provided with backings a<1> of spongy rubber, felt, &c. on which the carrier is supported when placed on a table. A doily suitably apertured is disposed over the carrier.
Patent GB-270409-A (GB)
Title: Improvements in or relating to brush making machines
IPC: A46D3/06
Filed: 1926-02-08
Abstract: 270,409. Shipley, A. H., and Berry, A. B. Feb. 8, 1926. Drilling brush stocks. - In a brush-making machine in which the work is displaced by cam mechanism used in conjunction with a driving and a locking ratchet, the means for actuating the driving pawl is adapted, upon initial operative movement thereof, to withdraw the locking pawl from engagement with the locking ratchet, and, subsequently, prior to the completion of the operative movement, to release the locking pawl- As shown, the driving ratchet 1 is mounted on a spindle 2 and has rigidly attached to it the locking ratchet 3. A spring-pressed pawl 4 for engagement with the ratchet 1 is pivotally mounted on a slide 5 which is adapted to be reciprocated by lever, link, and cam mechanism. For engagement with the ratchet 3 there is provided a pawl 14 on a slide bar 15 formed with slots through which pass collars 16 carried by a fixed bar 18. The pawl is normally held in engagement with the ratchet 3 by means of a spring 19. For the actuation of the slide 15 there is provided on the slide 5 a spring-controlled pivotally-mounted detent 20 which carries a roller 21. During upward movement of the slide 5 the roller contacts with an inclined surface 23 and is moved until the detent is engaged by a catch 24. As the slide 5 moves downwardly the detent engages a projecting surface 27 on a member 26 secured to the slide 15 whereby the latter slide is moved to withdraw the pawl 14 from the ratchet 3. At the same time the pawl 4 is caused to actuate the ratchet 1. Before the completion of the downward movement of the slide 5 the roller 21 passes the projection 27 and the catch 24 is tripped by a stop 28. The pawl 14 is thus released for re-engagement with the ratchet 3. Specifications 221,589 and 270,408 are referred to.
Patent GB-1216172-A (GB)
Title: Apparatus for the filling of containers
IPC: B01L99/00
Filed: 1969-01-22
Abstract: 1,216,172. Discharging liquids by gaseous pressure. COMPAGNIE GENERAL D'AUTOMATISME. Jan. 22, 1969 [Jan.24, 1968], No.3689/69. Heading F1R. [Also in Division B8] A filling apparatus comprises a storage cylinder 3 on an intermittently moving belt 34 and a transfer container 1, each hermetically sealed having covers with portions of perforable and retractable material of such a nature that, when gas pressure is supplied to the storage cylinder via a conduit and hollow needle which is made to pierce the retractable material, liquid from the cylinder 3 can be forced through a device consisting of a conduit 8 with a needle 5, 7 at each end when the end of the needle 5 is below the liquid level in the cylinder 3: each needle being able to be displaced translationally by actuators 4, 6 respectively into one of several positions. The transfer container 1 is filled with liquid when the needle 5 is below the liquid surface and the needle 7 is piercing the cover 2; filling ceases when the end of the needle 5 rises above the liquid level in the container 3, but with the needle still piercing the container 3 the transfer container 1 is supplied with pressurized gas. Liquid is delivered from the transfer container 1 to the containers 20 to be filled, on an intermittently moving belt 19, by a device similar in design and operation to that which has charged the transfer container 1. In this case the liquid flow is metered by the device 18 which on sensing the liquid operates an activator 13 to raise the needle 5, thereby allowing gas pressure to urge the liquid already in the needle and conduit into the container 20. A further device including a needle 10 is used to empty the container 1 when the requisite number of containers 20 have been filled. During the filling operations the needle 10 is either removed from the container 1 by the actuator 9 or the conduit 10<SP>1</SP> sealed by a valve 21. The actuators and the advancing of the belts 19 and 34 are all controlled by a sequential programme control circuit. Successive cylinders 31, 32 may contain sterilizing and washing liquids prior to the introduction of a further filling liquid. There may be several devices operating at the same time transfering liquid from the container 1 to a batch of the containers 20 to be filled.
Patent GB-1216631-A (GB)
Title: Improvements in or relating to holographic storage of information
Inventor: EAGLESFIELD CHARLES CECIL
IPC: G11C13/04
Filed: 1969-01-23
Abstract: 1,216,631. Holography. STANDARD TELEPHONES & CABLES Ltd. Jan.23, 1969 No.3812/69. Heading G2J. [Also in Division G4] Composite holograms for date storage are recorded in a photographic plate 61 by sequentially illuminating different data pattern frames 68, each located in the same holder, and for each pattern frame using a composite reference beam from an electro optic phase plate 60, the potential across predetermined elements of the phase-plate 60 being altered for each exposure whereby the phaserelationships of the composite reference beam is different for each exposure. Both the phaseplate 60 and data pattern 68 are illuminated through fly's-eye lenses. The number of bits of data on each pattern 68 is equal to the number of photo-sensors on reconstructed image receiving, device 62. To retrieve any desired bit of information from the composite hologram it is illuminated with the composite reference beam having the appropriate phase-relationships, the required image then being formed on photosensors 62. Any other images reconstructed by the particular beam interfere destructively and cancel each other out. for figure see next page
Patent GB-362239-A (GB)
Title: Improvements in apparatus for feeding strip-like enclosures, for example coupons, into packets more particularly cigarette packets
IPC: B65B57/18
Filed: 1931-02-09
Abstract: 362,239. Feeding sheets. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MœLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Feb. 9, 1931, No. 4063. Convention date, Jan. 12. [Class 100 (ii).] Tripping-arrangements.-In connection with a machine for automatically inserting coupons b in cigarette packets, a visible or audible signal is given to warn the operator if a coupon is not taken by the gripper cylinder h which feeds the coupon to the packet. This gripper cylinder h and the feeding mechanism c ; d, e ; f, g which feed the coupons from a magazine a are of known kind, and according to the invention a lever p fi t t e d with a spring contact t is moved towards the cylinder h when permitted by a cam s moving with the cylinder, and the contact t is normally prevented by a correctly fed coupon b from engaging a fixed contact w arranged on a plate a in a groove in the cylinder h. If the contact between t and w is closed owing to the absence of a coupon, a circuit x, v is completed from a belting y to a visible or audible signal z, and the operator removes the defective packet, or inserts a coupon therein by hand.
Patent GB-607640-A (GB)
Title: Improvements in and relating to resilient or shock absorbing wheels
IPC: F16C27/06
Filed: 1946-02-09
Abstract: 607,640. Resilient wheels. WHITE, H. G., and WISEMAN & CO., Ltd., A. Feb. 9, 1946, No. 4082. [Class 80 (ii)] A resilient wheel consists of a rim 1 and a hub 3, 4 which are connected by a transverse member 6 through resilient elements 9, 10 of which one or more are in the hub and one or more in the rim. The resilient elements may be natural or synthetic rubber and may be prestressed.
Patent GB-368941-A (GB)
Title: Improvements in smoke indicating apparatus
IPC: G01N21/29
Filed: 1931-02-10
Abstract: 368,941. Turbidometers. DUNBAR, A. W., 33, Sportsbank Street, Catford, London. Feb. 10, 1931, No. 4084. [Class 97 (iii).] A smoke indicating apparatus comprises an outer tube a having a ground glass screen e at one end and connections d, c for the inlet and outlet of smoke, and an inner tube b sealed at the ends by clear glass plates i, the tubes being illuminated at one end by a lamp k so that the smoke content can be ascertained by the relative intensity of illumination of the parts of the screen e corresponding to the inner and outer tubes. A clear glass plate f seals the outer tube at the end remote from the screen e. The inner tube is centrally supported at m, m. Water of condensation and soot is collected at j and removed through a drain cock o. The outlet pipe c may be connected to a forced draught fan and the inlet pipe d to a point in the chimney or flue. When soot is being removed from the boilers by steam jets the increased draught due to the steam jets in the chimney overcomes the suction of the forced draught fan and prevents soot being drawn into the indicator. An air pump aspirator may be used to draw smoke through the apparatus.
Patent GB-179309-A (GB)
Title: Improved manufacture of thorium nitrate
IPC: C01F15/00
Filed: 1921-02-03
Abstract: In the treatment of monazite sand with sulphuric acid to obtain an insoluble thorium compound, the insoluble compound is directly converted into thorium hydroxide.  The process is described in connection with Indian monazite which has been concentrated by magnetic separation of ilmenite.  The sand is heated with strong sulphuric acid at 180-200 DEG  C. and finally at 300 DEG  C. and the product is poured into water.  Insoluble thorium phosphate-sulphate, called the "first gray mud" is separated and boiled with caustic soda to give crude thoria ("red mud").  The "red mud" is dissolved in sulphuric acid at 60 DEG  C. and hydrofluoric acid is slowly added to the sulphate solution to obtain thorium fluoride ("second grey mud"). The "second gray mud" is dissolved in a hot solution of sodium carbonate and bicarbonate and the residue separated, caustic soda being then added to obtain thoria ("white mud").  The "white mud" is dissolved in hydrochloric acid and the solution is treated in portions with sulphuric acid, the crystals of thorium sulphate being separated.  The acid mother liquor is used to treat the residue from the thorium fluoride digestion when it sufficiently accumulates, and the solution is precipitated with hydrofluoric acid to obtain more "second gray mud."  The thorium sulphate crystals are stirred with ammonia solution and the hydroxide separated and dissolved in hydrochloric acid.  The chloride solution is cooled, diluted, and sulphuric acid is slowly added. Thorium sulphate crystals are separated, the acid mother-liquor ("No. 2 waste acid") being used for dissolving the "red mud." Thorium hydroxide is prepared from the sulphate as before, and is washed repeatedly, the later washings being slightly ammoniacal. Thorium nitrate is then prepared by dissolving the hydrate in nitric acid.
Patent GB-397030-A (GB)
Title: Improvements in and relating to glassware forming machines
IPC: C03B7/10
Filed: 1933-02-10
Abstract: 397,030. Glass manufacture. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Europaischer Verband der Flaschenfabriken Ges. ; 20, Breitestrasse, D³sseldorf, Germany.) Feb. 10, 1933, No. 4115. [Class 56.] Relates to the cut-off knife used with machines that gather molten glass by suction for the purpose of severing the glass in a mould from the supply in the gathering-pool. According to the invention, the knife, which is shown in crosssection in Fig. 8, has its cutting edge E projecting above the upper surface of the knife-holder 57 to prevent the holder from coming into contact with the mould during the cutting-operation. After the charge of glass has been severed, the knife-holder 57 is raised and is pressed against the bottom of the mould to close the moulding-cavity, and provision is made to ensure complete closure of the cavity. For this purpose, the closure is effected by a baffle plate 55 which is loosely mounted in a recess 63 in the holder 57 so that it can seat itself evenly against the bottom of the mould. In the construction shown, the baffleplate 55 has a central pin 60 having a convex head 61 which rests on the convex head of a similar pin 60<1> carried by a rib 58 that extends across the recess 63 in the holder. Flanges formed on the end walls of the recess limit the movement of the plate 55. In another construction, the plate 55 rests on the convex heads of pins which are supported in the walls of the recess. In a further construction, used for moulds with multiple cavities, baffle-plates rest in recesses in a supporting-plate which is pivoted in an opening in the knife-holder. The recesses have convex bottoms so that the baffle-plates, which rest on the convex surfaces, are free to rock in any direction. The knife-holder 57 is carried by a vertical shaft 17, Fig. 1, which is rocked by a cam 35, rack 32, and a pinion 30 in order to swing the knife under the mould. The knife-holder is also moved vertically by a bell-crank lever 40, rocked by a cam 49, which is connected by a spring 43 to a pivoted lever 36 that raises or lowers the shaft 17. When the knife is about to make a cutting-stroke, the cam 49 compresses the spring 43, but the shaft 17 is prevented from rising by a plate 50, Figs. 1 and 3, which is pressed against tongues 52 on the cover-plate 53 of the pinion 30. The plate 50 is formed with grooves 51, and when the knife has completed its cutting-stroke, the grooves register with the tongues 52 and the spring 43 is able to raise the knife-holder into contact with the bottom of the mould.
Patent GB-1424807-A (GB)
Title: Cyclopentenones
IPC: C07D317/72
Filed: 1972-02-18
Abstract: 1424807 Cyclopentenones MAY & BAKER Ltd 15 Feb 1973 [18 Feb 1972] 4138/75 Divided out of 1424806 Heading C2C Novel cyclopentenones of the formula wherein R<SP>1</SP> is H or C 1-5  alkanoyl, and R<SP>2</SP> is a divalent group of the formula or -(CH 2 ) n - wherein R<SP>3</SP> and R<SP>4</SP> are H or C 1-4  alkyl, R<SP>5</SP> is H or C 1-10  alkyl and n is 3 or 5, are prepared by reacting compounds of the formula with acids of the formula R<SP>6</SP>OH, wherein R<SP>6</SP> is C 1-5  alkanoyl, or mineral acids. 2 - (3 - Acetoxyoctyl) - 2,3 - epoxycyclopentanone is prepared by the epoxidation of 2 - (3 - acetoxyoctyl) - 2 - cyclopenten - 1 - one, obtained from 1-acetoxy-2-(3-acetoxyoctyl)cyclopent-1-ene, which is made by reacting isopropenyl acetate and p-toluenesulphonic acid with 2 - (3 -acetoxyoctyl) - cyclopentanone, resulting from the hydrolysis of 1,4-(dioxa-6-(3-acetoxyoctyl)spiro[4,4]nonane, which is prepared by acetylating 1,4 - dioxa - 6 - (3 - hydroxyoctyl) spiro[4,4]nonane, obtained by reducing 1,4- dioxa - 6 - (3 - oxooctyl)spiro[4,4]nonane, resulting from the reaction between pentyl magnesium bromide and 1,4-dioxa-6-(2-cyanoethyl)spiro[4,4]nonane. 2,3 - Epoxy - 2 - (7 - hydroxyheptyl)cyclopentanone is prepared by the epoxidation of 2-(7- hydroxyheptyl) - 2 - cyclopenten - 1 - one, obtained by hydrolysing 2-[7-(2-tetrahydropyranyloxy-) heptyl]-2-cyclopenten-1-one, resulting from the reaction between 7-(2-tetrahydropyranyloxy) heptanal and 1-morpholinocyclopentene.
Patent GB-667908-A (GB)
Title: Improvements in and relating to installations for launching ship's lifeboats
IPC: B63B23/04
Filed: 1950-02-17
Abstract: 667,908. Boat-lowering gear. VREUGDENHTL, .4. Feb. 17. 1950 [March 10, 1949], No. 4171/50. Class 115. A boat launching device comprises wheels or wheel sectors 18 (Fig. 6) rolling on transverse rails 7 and spaced by a longitudinal axle 16 which carries guide devices for the falls 11, 11a and 20. A chain 37 checks downward movement of the sector during lowering. The fall block 15 has a tee-shaped member 15b held in a hinged slotted member 24 until the movement of the cradle is checked, when the screw 27 is used to release the member 24 and lowering of the boat from the cradle commences. Specification 235.424, [Class 115], is referred to.