baber/WOPTO huggingface dataset:
Patent GB-810078-A (GB)
Title: Process for the manufacture of unsaturated aliphatic ketones
IPC: C11B9/00
Filed: 1957-06-27
Abstract: Unsaturated aliphatic ketones having the general formula <FORM:0810078/IV (b)/1> wherein R1 represents a lower alkyl or lower alkenyl group and R2 represents a lower alkyl group are prepared by pyrolysing an appropriately substituted propargyl aceto-acetate of the general formula <FORM:0810078/IV (b)/2> in the presence of a catalyst comprising an aluminium tri (lower alkoxide) and a lower fatty acid, the term "lower" denoting that the so-prefixed group or compound has a content of 1-8 carbon atoms.  The pyrolysis may be effected at about 150-190 DEG  C.  Inert solvents having B.P.s above the pyrolysis temperature, e.g. tetrahydro- or decahydro-naphthalene, mineral oil, petroleum ether and diphenyl ether may be present.  The catalyst may comprise 2-12 gms. of fatty acid and 0.1 to 1.5 gms. of aluminium alkoxide per gm. mol. of aceto-acetate used.  Suitable catalysts comprise aluminium tri-methoxide, ethoxide, isopropoxide or n or iso-butoxide, and acetic, propionic, butyric, valeric, isovaleric or caproic acid.  Suitable aceto-acetates are those in which R1 and R2 represent methyl, ethyl, or the n- or iso-propyl or butyl radical or R1 represents allyl, 4-methyl-penten-3-yl or 3,4-dimethyl-penten-3-yl.  The aceto-acetates may be prepared by condensing diketene with the appropriately di-substituted-propargyl alcohol.  In examples: (1) 1 : 1-dimethyl-propargylaceto acetate is heated at 160-180 DEG  C. in admixture with a mineral oil and as catalyst aluminium tri-isopropoxide and acetic acid yielding 6-methyl - heptadien - 3,5 - one - 2 as a stereo-isomeric mixture; (2) 1 - methyl - 1 - (4-methyl - 3 - penten - 1 - yl) propargyl acetoacetate is similarly treated in decahydronaphthalene using aluminium tri-iso propoxide and propionic acid as catalyst, the product 6,10-dimethyl undecatrien-(3,5,9)-one-2 being washed with aq. sodium bicarbonate and then with water, dried and distilled; (3) 3-methyl-1-pentyn-3-yl acetoacetate, obtained by reacting diketene with 3-methyl-1-pentyn-3-ol in petroleum ether containing a little pyridine and acetic acid, followed by a specified purification and isolation, is reacted as in (1) yielding 6-methyl - octadien - (3,5) - one - 2 as a mixture of stereoisomers; (4) 3,5-dimethyl-1-hexyn-3-yl acetoacetate prepared from 3,5-dimethyl-1-hexyn-3-ol and diketene as in (3), is pyrolysed as in (1) to yield 6,8-dimethylnonadien-3,5-one-2.  Specifications 733,884 and 741,047 are referred to.
Patent GB-378535-A (GB)
Title: Improvements relating to electric switches or circuit breakers, fusible cut-outs andlightning arresters
IPC: H01H33/96
Filed: 1931-05-09
Abstract: 378,535. High-tension switches. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION, WHITNEY, W. B., WEDMORE, E. B., and CASSIE, A. M., 36, Kingsway, London. May 9, 1931, No. 20433/32. Divided on 378,493. Drawings to Specification. [Class 38 (v).] Relates to oil or gas break switches in which a blast of fluid is forced across the arc at break by a piston or equivalent pumping member. The description is substantially the same as that of Fig. 1 of Specification 378,493. Specifications 278,764 and 330,616, [both in Class 38 (v), Electric switches &c.], are referred to.
Patent GB-444173-A (GB)
Title: Improvements in the use of cathode-ray oscillographs with internal electrodes
IPC: H03B13/00
Filed: 1934-07-12
Abstract: 444,173. Oscillographs; magnetic tests. WATT, R. A. W., and BELL, L. H. BAINBRIDGE-, National Physical Laboratory, Teddington, Middlesex. July 12, 1934, No. 20434. [Class 37] [See also Group XL] A cathode ray on its deflection in a given direction under the action of an electrostatic or magnetic field such as the earth's field strikes one or more collector electrodes, the current to which operates directly or indirectly to increase the deflection. A sharply focused or partly unfocused ray 11 falls on two semicircular electrodes 2, 3 connected to amplifiers 4, 5 feeding coils 6, 7. When the ray is central, it is equally divided between the electrodes 2, 3 and the deflecting effects of the coils 6, 7 on the ray are equal and opposite ; when the ray is deflected towards the electrode 3, the coils 6, 7 increase this deflection. The gap between the electrodes 2, 3 may be so proportioned that the increased deflection results only when the initial deflection passes a selected threshold value, and filters passing particular frequencies may be inserted at 16, 17. In modifications, the collector electrodes are Faraday cylinders, or an electrode in the form of a triangular prism is used. In other modifications, a ray of triangular cross-section is used with a circular collector electrode, or the collector electrode comprises resistance strips so that as the ray is deflected the effective resistance in circuit is varied. The collector electrodes may have apertures formed to give a desired relation between collector current and ray deflection and the arrangements may give a linear or non- linear relation between the original and resultant deflections. The original deflection may be produced by varying the potential of the anode or cylinder of the oscillograph to vary its deflectional sensitivity. The deflection due to the current to the electrodes 2, 3 may be produced electrostatically instead of by the coils 6, 7. The Provisional Specification refers also to arrangements giving a delayed or sustained response or no response for deflections of short duration.
Patent GB-1107935-A (GB)
Title: A 7-chloro-4-aminoalkylaminoquinoline, its preparation and pharmaceutical compositions
IPC: C07D215/46
Filed: 1966-05-09
Abstract: 7 - Chloro - 4 - [4 - (2 - hydroxyethylamino) - 1 - methylbutylamino] quinoline or an acid addition salt thereof is made by reacting a 7 - chloro - 4 - (4 - halo - 1 - methylbutylamino)-quinoline with 2-hydroxyethylamine and, if desired, reacting the free base obtained with an acid to form a salt.  Specified salts include those of oxalic, pamoic, phosphoric, sulphuric, methanesulphonic, 3 - hydroxy - 2 - naphthoic, naponic, salicylic, mucic and muconic acids.ALSO:Anti-inflammatory compositions comprise 7 - chloro - 4 - [4 - (2 - hydroxyethylamino) - 1-methyl-butylamino] quinoline or an acid addition salt thereof and a pharmaceutical carrier. Optional additional ingredients are the corticosteroids, e.g. prednisone, prednisolone, cortisone, hydrocortisone and the 9- or 12-halocorticosteroids; or non-steroids, e.g. acetylsalicylic acid, salicylamide, aminopyrine, chloroquine and hydroxychloroquine.  The compositions may be formulated in dosage units for oral or parenteral administration.
Patent GB-1219215-A (GB)
Title: Apparatus for handling record carriers, carrying visually and machine-readable characters, e.g. of magnetic ledger cards
IPC: G06K13/02
Filed: 1969-04-22
Abstract: 1,219,215. Statistical apparatus. KIENZLE APPARATE G.m.b.H. 22 April, 1969 [24 April, 1968], No. 20529/69. Heading G4M. In a machine for handling records, such as magnetic ledger cards, and including reading, printing and one or more output stations with deflectors therebetween, a waiting station 92- 100 is provided in which a card may be retained while other cards are being processed and from which the retained card may be subsequently released for further processing. A customer's account card may, after reading at MK be deflected into the waiting station by deflector 78, detection of the card by a photo-cell LS4 at the waiting-station disengaging a clutch and applying a brake in the driving mechanism of feed rolls 96, 97. Commodity cards relating to articles ordered by the customer may then be processed to prepare an invoice and update stock information on these cards. The customer card may then be fed out from the waiting station in response to a manually entered command, then fed forwards to the printing station, and finally fed in the reverse direction to output station 90 via write head LK which updates the card. Selection of the waiting station by deflector 78 may be by a manually entered command or by a code recorded on the customer card.
Patent GB-215239-A (GB)
Title: Improvements in the construction of fans of the propeller or screw type
IPC: F04D29/38
Filed: 1923-08-13
Abstract: 215,239. Wells, M. R. Aug. 13, 1923. Screw propellers. - Screw propellers and fans are constructed with blades in which the angle between either or both of the faces of each blade and the axial plane decreases from the leading towards the trailing edge and reverses to become negative over this portion. The faces 1<b>, 1<c> of the blades of the fan 2 have an angle between the axial plane which decreases from the leading edge 1<a> toward the rear edge 1<d> at which position the angle is reversed. In modifications, the faces are not parallel and only one face obeys the angle rule. In further modifications, the angle at the trailing edge has a second reversal.
Patent GB-625398-A (GB)
Title: Improvements in and relating to coat and garment hangers
IPC: A47G25/28
Filed: 1947-07-30
Abstract: 625,398. Garment hangers. JACOBS, C. L. July 30, 1947, No. 20547. [Class 52 (v)] A coat hanger comprises a flexible member 1 with depending tongues 3. These tongues engage slots 4 in a second flexible member 5 with a curved upper surface 6 and which is positioned at right angles to the member 1. A third member 9 passes through a slot in the first member 1 and acts as a means of suspension for the hanger.
Patent GB-148573-A (GB)
Title: Improvements in gas producers of the revolving grate type
IPC: C10J3/34
Filed: 1920-07-10
Abstract: 148,573. Pintsch Akt.-Ges., J. May 18, 1918, [Convention date]. Addition to 146,964, [Class 55 (i), Coking &c.]. Grates.-In a gas-producer of the kind comprising an annular shaft with a revolving grate, as described in the parent Specification and in Specification 147,514, the grate is formed with its apex of serpentine form.
Patent GB-1196813-A (GB)
Title: Process for the Preparation of N2-Dichlorophosphoryl-Creatinine
Inventor: OBELIANNE PIERRE MARIE JOSEPH
IPC: C07D233/88
Filed: 1968-05-01
Abstract: 1,196,813. Dichlorophosphoryl substituted creatinine. UGINE KUHLMANN. 1 May, 1968 [6 July, 1967], No. 20617/68. Heading C2C. Dichloro-phosphonyl substituted creatinine of the formula is prepared by reacting pulverulent creatinine (substantially free of particles greater than 50 microns) at the boil with 10 to 100 times its weight of phosphorus oxychloride, preferably until solution is practically complete. To isolate the product, the phosphorus oxychloride is evaporated under vacuum giving a residue which is either partly crystallized or completely liquid. This is purified by the usual methods of extraction, recrystallization or dissolving in a solvent followed by reprecipitation. Numerous examples of this are given. The N 2 -dichlorophosphonyl creatinine can be used directly for the preparation of phospho-creatininates of sodium, potassium, magnesium, lithium or other metals, or of organic bases.
Patent GB-597298-A (GB)
Title: Instrument for recording the profiles of gear teeth
IPC: G01B5/20
Filed: 1945-08-13
Abstract: 597,298. Gauging profiles of gear teeth. SEARS, J. E. Aug. 13, 1945, No. 20768. [Class 106 (ii)] [Also in Group XX] An instrument for recording the profiles of gear teeth comprises a base-plate 1, means 10a, 10b for registering it against the side face of the gear in determined relationship to the teeth of the wheel, means 12 for supporting a recording surface 13 on the base-plate in a plane parallel to that in which the profile to be recorded lies, and a stylus holder 19 carrying an exploring stylus 29, mounted so as to enable it to be freely moved in the plane of the profile, but not in any other direction. The holder 19 also carries a recording stylus 38 co-operating with the recording surface which is so arranged that by traversing the exploring stylus 29 in contact with a tooth, a figure is recorded which bears a definite known relationship to the profile of the tooth. The ball-ended members 10a, 10b are adjustable to engage between the teeth of gears of various sizes, and the recording surface 13 is adjustable along rails 11 by means of a screw 15. The recording stylus 38 is clamped in a sleeve 36 secured between parallel steel strips 35a, 35b on the holder 19, an arm 42 of a hand-operated bell-crank enabling the lifting of the stylus from the recording surface when necessary. The stylus holder 19 is hinged by cone and pivot bearings 25 to a lever 18, hinged in a similar manner to the base-plate 1 and balanced by a weight 39.
Patent GB-208009-A (GB)
Abstract: 208,009. White, A. E., (Kiddie Rekord Co., Inc.). Dec. 15, 1922. No Patent granted (Sealing fee not paid). Picture books.-A picture book for children is provided with envelope leaves 2 containing gramophone discs 3 having a sound record on one face and an appropriate picture 5 covering substantially the whole of the reverse face, the picture being exposed through a large central aperture 4 in one face of the envelope. An aperture may also be provided in the other face of the envelope to expose the sound record, and the covers may be perforated' to fit on a gramophone spindle so that the records can be played in situ.
Patent GB-1314442-A (GB)
Title: Exposure control attachments for use with cameras
IPC: G03B7/083
Filed: 1970-04-30
Abstract: 1314442 Photographic exposure control CANON KK 30 April 1970 [30 April 1969 2 April 1970 7 April 1970] 20827/70 Heading G2A Photographic apparatus comprises a camera body A and an adapter which is attachable to and detachable from the camera body, the adapter having an exposure meter operatively associated with the optical system of a finder, means for sensing scene illumination and timing means for controlling the operation of a shutter in the camera body. The adapter has a shutter dial a, which engages with a shutter dial a 6  provided on the camera body. At relatively high illumination levels corresponding to exposure times of 1 second or less, switch S 2  closes contacts 39, 40 to illuminate lamp 22 so that the scale 21 and pointer 2 of exposure meter 1 is visible in the field of view of the finder. With a lower level of scene illumination, adjustment of dial a, to a shutter speed of 2 seconds or longer operates switch S 2  via cam 35 and lever 37 to close contacts 39, 41. Lamp 22 is thus extinguished and lamp 18 is lit to illuminate the scale and pointer of exposure meter 13. In this position camera shutter dial a 6  is set at the 'B' setting, and the shutter is timed electronically by V 1 , C 1 , the setting of V 1  being determined by adjustment necessary to V 2  to bring the pointer of meter 13 to a standard position. The shutter is opened by operation of push-button e 1 , and closed by energization of electromagnet Mg at the end of the timed exposure, during the exposure a multi-vibrator network consisting of transistors T 1 , T 2  causes lamp 18 to flash as an indication to the operator. In another embodiment, Fig.6 (not shown) a shielding member (100) covers the eye-piece of the view-finder and is associated with a switch so that the low level exposure meter is only actuated when the shielding member is in a shielding position to thus eliminate stray light. The exposure meter needle is visible in a window (20) provided on the top of the attachment.
Patent GB-680172-A (GB)
Title: Improvements in or relating to magnetic recording and reproducing systems
IPC: G11B15/02
Filed: 1950-08-23
Abstract: 680,172. Magnetic recording and reproducing devices. DICTAPHONE CORPORATION. Aug. 23, 1950 [Aug. 30, 1949], No. 20855/50. Class 40 (ii). A magnetic recording and reproducing system using a common head 8 for both recording and reproducing. includes a high frequency bias signal generator 10, which is connected through a coupling circuit 11 to the head 8, and the means for changing the system from recording to reproducing also operates means for gradually reducing the efficiency of circuit 11, and thus reduces gradually the magnitude of the bias signals applied to the head. During recording signals from a microphone 2 are fed through a switching system 3, and amplifiers 4 and 5, to the head 8. When reproducing the signals from the head 8 pass through an amplifier 13, switch system 3, amplifiers 4 and 5, and output circuit 14, which includes a loud speaker 15. The bias signal from generator 10 is amplified or attenuated in network 11 according to the setting of potentiometer 132. When the switching system 3 moves from the recording position, contact 148 breaks the high tension supply to anode 144 of coupling valve 134. However, the delay circuit formed by condenser 152 and resistance 146 applies a gradually decreasing voltage for a time to anode 144. This provides the desired gradual reduction of efficiency in coupling network 11. Specification 670,246 is referred to.
Patent GB-248409-A (GB)
Title: Improvements in the construction of boots and shoes
IPC: A43B9/00
Filed: 1924-09-04
Abstract: 248,409. Shoe Inventions, Ltd., and Rice, F. E. Sept. 4, 1924. Lasting, methods of; repairing.-A method for the manufacture of shoes is characterized by the use of a template T<1> temporarily secured to the last and/or a part of the shoe for facilitating various operations and/or stiffening the shoe during manufacture or repair, a strip or strips F, which may be removable, being used in conjunction with the template and last. An inner sole B, Fig. 1, which can be thinner than is usually employed, is tacked to a last A. The template T<1> is secured by tacks to the front portion of the inner sole leaving a marginal space B<1>. The upper is lasted on with its edge abutting the edge t<2> of the template. The toe is held in place by a wire and two tacks. When the lasting is finished and before removal of the tacks, a thin leather strip F, Fig. 3, is tacked through the margin of the upper D' to the inner sole B, The strip F may be removed with the tacks or, if left in, it facilitates repairing operations. The upper may be lasted by a Consol machine, being tacked at the point of the toe and waist, the remaining part being pulled in by hand and tacked down through one or two strips of leather, one or both of which may be afterwards removed. The template T<1> is removed and the space left is filled with a bottom filling G.
Patent GB-531340-A (GB)
Title: Improvements in mercury vapour electric discharge tubes with an external fluorescentcoating
IPC: H01J61/04
Filed: 1939-07-18
Abstract: 531,340. Discharge lamps. SOC. ANON POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES, ETABLISSEMENTS CLAUDE-PAZ ET SILVA. July 18, 1939, No. 20891. Convention date, April 7, 1938. [Class 39 (i)] In mercury vapour discharge lamps with fluorescent coatings and in which the mercury vapour is saturated during discharge the liquid mercury is placed in chambers at the ends of the lamp separated from the body of the lamp by partitions perforated for the passage of mercury vapour. Fig. 2 shows an arrangement in which the partitions consist of blocks 7 formed with screw-threads 10 in which are placed coiled springs 11 to hold the block in place by friction. The blocks are formed with inwardly projecting conical portions to hinder the escape of liquid mercury into the body of the tube. The electrodes 1 are placed in the mercury-chambers and are coated in the neighbourhood of their edges with insulating material 6 to check disintegration. The partitions may be attached to the wall of the tube instead of being formed by separated blocks. In a modification plane partitions with central openings are employed and the electrodes are outside the mercury chambers.
Patent GB-376034-A (GB)
Title: Improvements in or relating to doffing arrangements for spinning and like textile machines
IPC: D01H9/04
Filed: 1931-07-22
Abstract: 376,034. Doffing-apparatus for spinning and like frames. LOW & CO., Ltd., J. F. and HARGROVE, J., Monifieth Foundry, Angus. July 22, 1931, No. 20905. [Class 120 (ii).] In spinning, roving, and other textile frames the bobbin board 1 is adapted to be lowered and partly rotated so that the full bobbins drop on to pegs 1<2> carried by a shaft 4, and then to be again partly rotated so that empty bobbins 2<1> carried in trays 5 are impaled on the spindles by a horizontal movement of a rack 6, which, by means of a connecting rod 12 rotates the shaft 4 so that the full bobbins are in a convenient position for doffing, as shown in dotted lines. The trays are carried by brackets 61 on the racks and plates 14 are provided to prevent premature displacement of the full bobbins from the spindles. The yarns are severed by cutters in a rail 17 ; the flyers are aligned by a rail 16 carried by a shaft 15 ; and a serrated rail 106 or a series of fingers movable with the bobbin board serves to engage the yarn to prevent fouling when the empty bobbins are being impaled on the spindles. In the Provisional Specification it is stated that the empty bobbin carrier is mounted for oscillatory movement, that a control interlock is so arranged that " the frame can only be stopped at the bottom of the traverse unless in case of emergency," and that a plunger or equivalent is manually operated to disconnect the heart motion.
Patent GB-719895-A (GB)
Title: Process for producing aralkyl hydroperoxides and the resulting aralkyl hydroperoxides
IPC: C07C409/10
Filed: 1952-08-21
Abstract: Aralkyl hydroperoxides are prepared by treating a compound of the general formula <FORM:0719895/IV (b)/1> in which Ar is an aryl or alkaryl group, R1 a hydrogen atom or an alkyl group and R11 an alkyl group, with a substance, other than concentrated sulphuric acid, which is active as an alkylation catalyst and oxidizing the treated compound with molecular oxygen.  The amount of alkylation catalyst is suitably between 0.1 and 10 per cent and more preferably is about 5 per cent by weight of the aralkyl compound.  The treatment is preferably carried out with agitation for a period of 1 to 24 hours. The treatment may be repeated one or more times with fresh amounts of the alkylation catalyst, and one or more washings with water and/or a basic aqueous liquid may be interposed followed by a final water wash.  A final washing with an aqueous solution of a mercuric salt may also be given.  Examples are given in which cumene is treated with (1) fluorosulphonic acid; (2) hydrogen fluoride; and (3) aluminium chloride and is then oxidized by air to the hydroperoxide. Specifications 626,095, 630,286, 663,445, [Group IV (a)], 705,640 and 719,894 are referred to.
Patent GB-1349886-A (GB)
Title: Strip storage cassette
IPC: G03B17/30
Filed: 1971-04-19
Abstract: 1349886 Cassette EASTMAN KODAK CO 19 April 1971 [3 Feb 1970] 21005/71 Heading G2E A cassette 1 particularly for housing microfilm includes two cavities 2 linked by a passageway 3 having walls 7, 8, 9 in which may be formed windows 10 so that the film can be located in the cassette whilst at a projection gate. Each cavity 2 has a projection 4 over which can be located coaxially a single flanged spool whose flange is grooved to co-operate with a ridge 17 and thereby close the end of each cavity. The spool carries means to be engaged by a film advance/rewind mechanism. A clip is described, Fig. 4A, 4B (not shown), which can be inserted in each projection 4 so that is expanded to grip the spool whilst still permitting it to rotate  during film movement. The passageway is widened as shown in Figs.1 5 so that transparent members 21 on the projector can enter the cassette and correctly align the film in the desired plane for projection.