baber/WOPTO huggingface dataset:
Patent GB-717683-A (GB)
Title: Improvements in and relating to slide scales
IPC: G10G1/02
Filed: 1951-06-20
Abstract: 717,683. Music. MILES, H.C.D. Sept. 11, 1952 [June 20, 1951], No. 14612/51. Class 88 (2). A sliding scale for demonstrating musical information such as scales and chords and for transposing from one key to another and from one notation to another comprises a stock with partly transparent front and back plates c, d and two superimposed opaque slides g, j sliding in directions at right angles, part of the rear slide j being visible through a slot h in the front slide g. The front slide g, Fig. 6 is divided into columns of equal width representing the semitones of two octaves and one semitone. The columns are marked black and white to represent black and white notes. 'The one or two possible names for keys based in each note are marked at the top and bottom of the column above the slot h. The three possible names for the note itself (except G#, A#) are marked beneath the slot. The names of one octave of notes based on C are marked on the stock along a strip marked OLD NOTES. The slide is adjusted so that the name of the key under consideration, e.g. A#, is shown in the squares l adjacent the markings KEY OF. Information concerning the major and minor keys of A# can then be read from the slide by comparison of the slide markings and the stock marking at an appropriate level marked TONIC SOL FA, DIATONIC NAMES, MELODIC SCALE UP &c. To determine a particular chord in the key for which the slider g is set, the rear slider j is set so that the name of the wanted chord, e.g. minor 6th is shown in the slot h against the marking CHORD on the stock. The numbers 1, #3, 5, 6 identify the notes of the chord. Three names appear on the slide g beneath each of the numbers and a circular slide k is used to determine the correct name to use. The reverse side bf the 'scale can be used to determine chord inversion.
Patent GB-147151-A (GB)
Abstract: 147,151. Schneider, C. March 15, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Shaft furnaces; charging; covers.-In a shaft furnace a movable arch is provided which rests on the charge and descends with it. When more material is to be fed to the furnace the arch is lifted, the new material is supplied to the space above the old charge, and the arch is again lowered. In the construction shown in Fig. 1, the arch consists of a casting 1 in the form of two wings connected by radial webs. In the body of the casting are two sets of channels 4, 7, the upper set being for the circulation of cooling- water, and the lower for heating and supply of air or gaseous fuel, which is delivered to the charge through openings 5 formed in the refractory lining 2. Hooks 11 are secured to the casting to facilitate lifting. In a modification, the feed apertures in the arch are of circular shape and the material is supplied from hoppers through telescopic shoots, the lower movable portions of which are secured to the arch. The material may be fed through the shoots bv screws. In a further modification, the connexion between the hoppers and the feed apertures is made by interfitting gratings which allow free passage of the furnace gases. When gaseous fuel is supplied through the arch, the delivery nozzles are arranged only at the inner part, so that the furnace walls will be protected by an annulus of unburnt material.
Patent GB-224186-A (GB)
Title: Improvements in or relating to cylinders for internal combustion engines
IPC: F02F1/10
Filed: 1924-06-18
Abstract: 224,186. Napier, M. S., and Wilkinson, G. S. June 18, 1924. Cylinders, construction of and cooling. - Each cylinder of a block has a head and barrel formed as a unit, is surrounded by a thin metal water jacket and is provided with lugs outside the jacket by which it is connected to adjacent cylinders of the block. To a cylinder A, which may be formed by machining a solid steel forging, is attached the water jacket, comprising a cover plate B and a sheet-metal casing C which may be in two pieces. Lugs A<7>, B<1> enable the cylinder to be attached to adjacent cylinders; coaxial tubes project from the water jackets which may be connected by flexible tubes.
Patent GB-720616-A (GB)
Title: Removal of marks from record material
IPC: B41M5/128
Filed: 1952-06-16
Abstract: 720,616. Removing marks from record material ink. NATIONAL CASH REGISTER CO. June 16, 1952 [June 23, 1951 ; June 23, 1951], No. 15058/52. Class 146 (3). Coloured marks made by bringing a record material (e.g. paper) sensitized with an electronacceptor absorbent substance into contact with an organic compound (e.g. crystal violet lactone of malachite green lactone) of formula (where R is a saturated alkyl group containing not more than 4 carbon atoms and X if present is a dialkyl amino group containing not more than 4 carbon atoms in an alkyl group) are removed by applying to the marks an acid which forms a salt with the alkylamino groups. Specified electron acceptor substances are magnesiumtrisilicate, pyrophillite, zirconium or titanium dioxide, attapulgite or sodium aluminium silicate zeolite material in which the base exchange sodium ions may be replaced by nickel, copper, iron, zinc, mercury, barium, lead, cadmium or potassium. Specified acids are acetic, propionic, butyric, ethylhexoic and hydrochloric. The marking organic substance may contain a second compound which oxidises slowly in contact with the absorption surface to give a permanent colour, e.g. tetramethyl or tetraethyl benzidine or benzoyl leuco methylene base, and the two marking substances may be dissolved in a solvent, e.g. chlorinated diphenyl. In this case, non-oxidised substance may be removed by a solvent, e.g. acetone, methyl ethyl ketone or ethyl acetate (with or without benzene or toluene) in which the acid is dissolved. The eradicating solution may be applied by a swab or dropper and excess soaked up. Specification 712,216 is referred to.
Patent GB-487722-A (GB)
Title: Improvements in methods of sealing side-tubes to thick-walled vitreous tubing
IPC: C03B23/213
Filed: 1937-05-31
Abstract: 487,722. Welding and jointing silica. GENERAL ELECTRIC CO., Ltd., and BREADNER, R. L. May 31, 1937, No. 15082. [Class 56] Relates to a method of sealing a side tube into a vitreous envelope, particularly to a quartz tube that forms the envelope of a highpressure mercury - vapour lamp. According to the invention, a depression 3 is formed in the wall of the envelope 1 by a process that does not involve the distortion of the tube by heat, the bottom of the depression is pierced, and the end of the side tube 2 is then inserted in the depression and fused to the tube 1.
Patent GB-583947-A (GB)
Title: Purification of lactams
Filed: 1943-09-15
Abstract: Aliphatic lactams containing amino compounds as impurities are purified by a process which comprises treating the impure lactam with the ester of a carboxylic acid, subjecting the resulting reaction mixture to fractional distillation, or crystallisation or a combination of both methods.  The process is particularly suitable for the purification of epsilon-caprolactam from mixtures thereof with epsilon-amino-capronitrile.  Preferably, the crude lactam is treated with an amount of the carboxylic acid ester which is at least chemically equivalent to the amino compound impurity, the mixture being heated with agitation to a temperature between 50 DEG  and 350 DEG  C., the preferred range being 150 DEG  to 175 DEG  C. and thereafter vacuum distilled to separate the purified lactam.  Esters of mono- and poly-carboxylic acids may be used to convert the amino-capronitrile into a non-volatile heat stable compound and include methyl formate, ethyl acetate, dimethyl succinate, phenyl propionate, diphenyl adipate, dimethyl malonate, dibenzyl sebacate, ethyl lactate, propyl alpha-hydroxybutyrate, trimethyl carballylate and dimethyl phthalate.  The process is applicable to the purification of epsilon caprolactam obtained by the processes described in Specifications 535,025, 560,040 and 560,100, and in U.S.A. Specification 2,234,566.  The method may also be used to separate epsilon-caprolactam from other amino compounds.  Other aliphatic lactams containing amino compound impurities which may be treated similarly, include 7-heptolactam, 10-caprilactam, 4-methyl-6-caprolactam, 2-methyl-5 - valerolactam, 6 - methyl - 6 - caprolactam, N - methyl - 6 - caprolactam and 2 : 5 - dimethyl - 6 - caprolactam.  In examples: (1)-(3) epsilon-caprolactam containing epsilon amino capronitrile as impurity is treated with diethyl oxalate, diphenyl carbonate and methyl hydroxyacetate respectively and the purified lactam obtained by fractional distillation; (4) a solution of epsilon amino-capronitrile and distilled water is passed over a heated activated alumina catalyst at 310 DEG  to 330 DEG  C. to yield a mixture of epsilon - caprolactam, unreacted amino-nitrile, water and ammonia.  The condensed reaction products are distilled and the residue consisting of epsilon-caprolactam and 2 to 3 per cent of the amino-capronitrile is treated with diethyl oxalate as in example 1; (5) phenyl acetate is employed as the carboxylic ester in example 4, in place of diethyl oxalate.
Patent GB-685916-A (GB)
Title: Improvements in and applicable to reservoir writing instruments
Inventor: FEHLING HANS REINHARD
IPC: B43K1/08
Filed: 1949-06-07
Abstract: 685,916. Reservoir pens. COMPANIA URUGUAYA DE ROMENTO INDUSTRIAL, SOC. ANON. May 30, 1950. [June 7, 1949] No. 15156/49. Class 146 (iii). In a ball-point pen the ball housing is so constructed that wear of the base seat of the ball is compensated, and the ink trace made by the ball is maintained substantially constant for an appreciable period. As shown, the ball housing comprises a base 1, reduced at the end to form a neck 12, which has a part spherical seating 13 for a ball 3. A sleeve 2 has a seating 15 encircling an equatorial zone of the ball, and is slidably mounted on the neck 12 of the base 1. A ring 7 of rubber &c. may be arranged between the faces of the members 1, 2 and bonded thereto, or the co-operating faces of the member 2 and neck 12 may be dovetailed at 8. As the base seat 13 wears, the member 2 automatically moves upwardly along the neck 12, so that the gap size between the ball and the member 2 is maintained substantially constant. The member 1 may have one or more fine slits 10 therein to form ink channels around the ball seating 13, and the member 2 may be provided with a radial cut 9. The sleeve 2 may be of beryllium bronze. Specifications 564,172, 571,698, 573,747, 584,974, 602,101, 609,817, 621,847, 629,226, 633,821 and 633,880 are referred to.
Patent GB-399128-A (GB)
Title: Improvements in and relating to tear-off blocks, pads, books, and the like
IPC: B42D5/00
Filed: 1933-05-26
Abstract: 399,128. Calendars. KORESKA (GT. BRITAIN), Ltd., 50, Britannia Street, City Road, London.-(Koreska, W.; 48, Wattgasse, Vienna.) May 26, 1933, No. 15285. [Class 106 (iv).] In tear-off blocks or pads of writing or carbon paper, calendars, or books and the like of the kind in which perforations are provided in the sheets to facilitate separation thereof, the perforations in each sheet are arranged in rows extending in an inward direction from one edge of the sheet and enclose with the adjacent edge or edges of the sheet, and if necessary other rows of perforations, relatively small areas closely surrounding the staples or like fastening means. In the form of block shown in the Figure, the rows of perforations 1 are arranged in pairs to form with the back edge of the sheet triangular areas, the apex of each area coinciding with a limb of a staple 2. In a modification especially suitable for calendars and notebooks, the staples are arranged in the top corners, and rows of perforations run from the top edge to the adjacent side of each sheet to enclose the staples. In a further modification the perforations extend along three sides of a rectangle, the fourth side of which is formed by the top edge of the sheet, and in the centre of each such rectangle a staple is arranged.
Patent GB-110610-A (GB)
Title: Improvements in Collapsible Receptacles for Carrying Goods.
Inventor: STUBBS JOHN STEVENSON
IPC: F16B12/02
Filed: 1916-10-27
Abstract: 110,610. Stubbs, J. S. Oct. 27, 1916. Folding or knockdown boxes.-In a box in which the sides 1, 2, 3. 4 are hinged together to form a collapsible tubular structure, the bottom 5 is hinged so as to fold against the inner face of the side 3, the hinges a at two opposite corners of the box being so arranged that, when the box is collapsed, a space for the bottom 5 is left between the opposed sides. The bottom is adapted bo rest on projections 7, 8, and is secured in place by a bolt or by a spring catch 9. The lid 14 is arranged to fold flat against the outer face of the side 1. The hinge elements and the parts carrying the projections 7, 8 mav consist of sheet-metal fittings, which embrace the parts to which they are secured and have teeth 13 adapted to be pressed into the wood. Specification 3849/14 is referred to.
Patent GB-1526376-A (GB)
Title: Amplifier power supply arrangements
IPC: H03F3/30
Filed: 1976-04-14
Abstract: 1526376 Transistor amplifiers SONY CORP 14 April 1976 [17 April 1975] 15308/76 Heading H3T An amplifier having its supply voltage modulated in dependence on the instantaneous value of either the input or the output signal for increased efficiency, comprises amplifying means feeding a load Z L , a D.C. supply therefor (at t 21 ), and pulse width modulating means responsive to the said signal, connected in series with smoothing means FK 1  between the supply and the amplifying means. In the embodiment of Fig. 7 mains power is provided at t 6 , and the supply voltage V(B) produced at t 31  has the waveform shown in Fig. 8B, being modulated by the output voltage # 0  across Z L , full-wave rectified by diodes D 3 , D 4 . The resulting collector-emitter voltage v, of the transistor Q 1 <SP>1</SP>, Fig. 8C, is limited to a low constant value during the half-cycle when Q 1 <SP>1</SP> is conducting with current i 1  Fig. 8D, and thus Q 1 <SP>1</SP> dissipates less power than it would with a fixed supply voltage, the effect for transistor Q 2 <SP>1</SP> being similar. The modulation is produced by a transistor Q 5 , Fig. 7, the impedance of which is controlled by a transistor Q 3 , the base input of which is derived from a comparator CMP 1 , in which the rectified signal is compared with a sawtooth wave of high frequency relative to the signal, supplied to terminal t 51 . Other embodiments comprise single-ended push-pull, Fig. 3 (not shown), and single sided, Fig. 9 (not shown), circuits, which may be Class A, AB or B as appropriate.
Patent GB-816378-A (GB)
Title: Improvements in or relating to exercising devices
IPC: A63B21/06
Filed: 1956-05-17
Abstract: 816,378. Exercising devices; toys. BRIMMER, A. G. May 16, 1957 [May 17, 1956], No. 15378/56. Class 132(1) and 132(2) An exercising device comprises, for engagement by the individual fingers and toes, a plurality of connectors to each of which, is coupled a lever carrying a movable weight, the connectors being connected also to one or more movable mechanisms, e.g. a puppet. As shown, the device consists of a frame 1 which may fit across a bed and whose lower front wall has a series 'of holes 2 through which cords are passed, each cord having a ring on its front end. The other ends of these cords are each connected to one arm 5 of one of a series of ten three-armed levers pivoted on a common spindle 6. Each lever has a second arm 7 along which a weight 8 can be slid and secured. The third arm 9 of each lever is connected by a cord or link 10 to one arm of one of a series of two-arm levers 11 mounted on a common spindle 12. These levers extend forwardly over a stage area 13 in which is disposed a puppet 14 consisting of ten pivoted parts, each of which is connected iby a cord 15 to one of the levers 11. The arm 7 is preferably calibrated in "lbs. weight" so that the pull to be exerted can be preset.
Patent GB-120084-A (GB)
Title: A New or Improved Combined Method of Construction for Affixing Shanks, Fastenings, or the like, to Buttons, or to Ornamental, Utilitarian, and other Articles.
Inventor: HUMPHRIS FRANK
IPC: A44B1/24
Filed: 1917-10-24
Abstract: 120,084. Humphris, F. Oct. 24, 1917. Buttons. - For securing attachments to articles, and particularly metallic attachments to non-metallic articles, a divided resilient ring a is employed, which ie sprung into an undercut recess a<1> in the article A so as to bear against an abutment b on the attachment d, the portion of the ring engaging the abutment being approximately flat. Fig. 3 shows an eyed shank d, which is formed by bending up the piece of sheet metal, Fig. 4, connected to a button A; the part e forming the eye is laminated to prevent abrasion of the securing thread. In the arrangement shown in Fig. 5, the wall of the undercut recess is curved throughout and the eyed shank d comprises a wire eye riveted to the disk b. In a further modification, (not shown) the eyed shank comprises a hollow domeshaped part integral with the eye. The ring a may be semicircular in cross-section, Fig. 5, or may have the cross-section shown in Fig. 3.
Patent GB-260012-A (GB)
Title: Improvements in or relating to electrical signalling systems for indicating and/or recording and/or counting movements from a distance
IPC: G08C19/06
Filed: 1925-06-16
Abstract: 260,012. Kent, Ltd., G., and Avery, A. H. June 16, 1925. Regulation, automatic systems and apparatus for.-The voltage for operating an electric signalling system is kept constant by a voltage regulator A which comprises a resistance or impedance 5 connected in the supply mains and varied by a contact arm driven by a reversible electric motor 6. The motor is controlled by a switch having a contact arm 9 which is immersed in one or other of the mercury cups 10 by a solenoid 7 or weight 12 respectively according to the rise or face of the voltage across the bus bars 4. Specification 240,205, [Class 40 (i), Electric signalling systems &c.], is referred to.
Patent GB-723775-A (GB)
Title: Improvements in minerals cleaning plant
Inventor: SPILLER CLIFFORD HARRY
IPC: B03B5/24
Filed: 1951-07-02
Abstract: 723,775. Jigs. COAL INDUSTRY (PATENTS), Ltd. June 18, 1952 [July 2, 1951], No. 15619/51. Class 82 (2). A jig has one or more jets of liquid below the sieve 7 to move the fine particles falling therethrough along the bottom of the box. A Baum jig may be used and pipes 9 with horizontallypointing nozzles 8 may extend to the mean water level of the jig.
Patent GB-619940-A (GB)
Title: Improvements in and relating to tanks
IPC: B65D88/16
Filed: 1943-09-23
Abstract: 619,940. Tanks. McCULLOCH, M. L. Sept. 23, 1943, No. 15648. [Class 69 (i)] A flexible tank is built up of sections 1, 1A, in Fig. 3, secured end to end or divided into compartments by a diaphragm 2, Fig. 1, or 9, Fig. 2, composed of flexible material. The sections or diaphragms are reinforced at their edges in the neighbourhood of the join by strips of flexible material 6, 3, Fig. 1 ; 12, 10, 8, Fig. 2 ; or 17, 14, Fig. 3. The join and some of the reinforcing strips are secured by stitching, the stitching being covered by flexible strips cemented in position. Specifications 562,388 and 567,888 are referred to.
Patent GB-686703-A (GB)
Title: Improvements in or relating to troughs for food or water for livestock
IPC: A01K39/00
Filed: 1950-06-22
Abstract: 686,703. Feeding troughs for livestock. ELT, Ltd., G. H., and ELT, G. H. June 22, 1951 [June 22, 1950], No. 15662/50. Class, 5(ii) A cover 5 for a food container 1 is supported in spaced relation by legs 7 connected by a ring 6. Lugs 2 support the ring 6. For closing the cover, depressions 9 in the ring 6 are turned into line with the lugs 2. In one modification, the lugs and depressions may be inside the container, and in another pins on the container wall may work in L slots in the legs 7. The container has a domed base 13.
Patent GB-234657-A (GB)
Title: Improvements in and relating to flexible tracks for wheels
IPC: B62D55/24
Filed: 1924-06-30
Abstract: 234,657. Legros, L. A. June 30, 1924. Endless-track vehicles.-An endlesstrack of the kind comprising a continuous band having elements driven positively by a sprocket is provided with rigid transverse ribs a connected together in the direction of the length of the band by wire or wire rope n. The ribs are engaged by sprocket teeth b and are formed with flanges c, d to centre the band on the sprocket. The wire is wound between the ribs and fills up the spaces between the flanges c, d and other flanges e, f. Fabric r is threaded between the wires, as shown in Fig. 4, and the band is then completed by rubber compound p having a tread portion q. If desired tread shoes s may be attached to the band by bolts passing through the ribs. The sprocket teeth b and pulley portions l, m are bolted to discs g forming the driving member. According to the Provisional Specification the fabric strands r may be laid diagonally to the axes of the ribs.
Patent GB-313490-A (GB)
Title: Improvements in or relating to apparatus for use in photography by x-rays
IPC: A61B6/14
Filed: 1929-05-21
Abstract: 313,490. Rona, A. June 12, 1928, [Convention date]. R÷ntgen-ray apparatus. - In making a radiograph of a tooth on a sensitive film inside the mouth, a curved bar 4, bearing eight pins 5, set to indicate the direction of the principal ray for the tooth corresponding to each pin, is laid against the jaw. Bars are provided for left and right halves of the upper and lower jaws, and are supported interchangeably, e.g. by a ball joint 6 in a jointed stand 7, 8, 9.
Patent GB-370245-A (GB)
Title: A momentary clutch device for presses, punches and like machines
IPC: F16D11/06
Filed: 1931-05-29
Abstract: 370,245. Positive clutches. STUBGEN, R., 23, Dorotheenstrasse, Erfurt, Germany, May 29, 1931, No. 15796. Convention date. May 30, 1930. [Class 80 (ii).] In positive clutches of the instantaneous type for pressing, punching, and like machines, drive is initiated by a yielding part of the driving member and when, during the idle part of the cycle of the press &c., the driven member has been fully accelerated, a rigid element is released for engagement to cause non-yielding drive during the working operation. A rocking key 7, Fig. 1, engages a notch 6 in a part 5, which is carried in a recess 3 of the flywheel hub 1 and yields against a spring 4, rubber buffer, or air cushion. On rotation of the press &c. shaft 2, a roller 13 on a lever 12 is freed from a stationary restraining cam 15, allowing a spring 14 to thrust an abutment block 10 towards engagement. As soon as the spring &c. 4 has re-expanded, the block 10, which may be tapered to take up backlash, enters between the faces 8, 5a of the recess 3 and part 5 respectively to render the drive rigid. The cam 15 may be manually or automatically displaceable out of the path of the roller 13 to avoid repeated disengagement of the block 10 when the machine is set for continuous running. In a modification, the block arrangement is replaced by a second rocking key 16, Fig. 4, adapted to be released from a cam 21 to make direct rigid connection between the parts 1, 2. Bolt, pawl, or dog clutch elements may be substituted for the key 7 in both forms.