baber/WOPTO huggingface dataset:
Patent GB-690877-A (GB)
Title: Improvements in or relating to the polymerization of organic compounds
IPC: C08F2/18
Filed: 1950-05-17
Abstract: In the pearl polymerization in aqueous suspension of compounds containing a CH2=C< group, e.g. styrene, methyl methacrylate, vinyl acetate, and acrylonitrile, in which calcium phosphate is used as suspension stabilizer, up to 0.01 per cent of a water-soluble persulphate, e.g. potassium, sodium, or ammonium persulphate, is added.  Polymerization may be effected using heat, light and/or catalysts, if desired under pressure.  In examples, styrene, methyl methacrylate, and styrene with acrylonitrile, are refluxed under nitrogen with agitation, using benzoyl peroxide as catalyst.  After an interval, finely-divided calcium phosphate, e.g. commercial tricalcium phosphate, hydroxyapatite or a phosphate prepared as described in Specification 659,771, is added together with the persulphate, or alternatively the persulphate is subsequently added wholly or in portions at a later stage.  The presence of a small amount of acid, e.g. acetic, formic, or phosphoric acid is advantageous, particularly when commercial phosphates are used.  The pearls are finally washed with dilute acid, water and dried. Specification 638,572 also is referred to.
Patent GB-226433-A (GB)
Title: Improvements in connection with spring relieving gear for rolls of sugar-cane mills,metal rolling mills, and the like
IPC: C13B10/06
Filed: 1924-05-21
Abstract: 226,433. McNeil, C. May 21, 1924. Spring supports for the rolls of sugar-cane mills, metal-rolling mills &c., of the type in which the springs used are formed of corrugated or curved plates. Layers of spring elements are placed between the outer half of the roll bearing and a bolster or equivalent, the layers being separated from each other by means of distancepieces which may be in the form of plates, blocks, or rods. As applied to the top roll of a sugarcane mill, spring elements A, Figs. 1 and 2, each consisting of a comparatively narrow corrugated plate of spring material lying parallel to the roll axis, are positioned between the outer half of the roll bearing A' and the bolster A<2>, and distancepieces A<3> in the form of rubbing-plates are inserted between the elements, and a rubbing-plate formed integral with a pressure block is placed between the bearing A<1> and the next adjacent adjacent element A. The relieving-gear is carried in a housing B secured to the headstock B<1> by king-bolts B<2> and bolster A<2>. Or the relieving- gear may be carried in a housing B, Fig. 3, formed in one with the pressure-block A<4> and the whole mounted on the usual king-bolts B' above the bolster A<2> through an aperture in which the pressure-block projects and bears on the roll bearing A<1>. fig. 5 shows the distance-pieces A<3> in the form of blocks on which bear the convex portions of adjacent layers of spring elements A. Or the distance-pieces may be placed so that a convex portion of one layer and a concave portion of the adjacent layer of spring elements bear on the same block. In Fig. 7, the distance-pieces A<@1> are in the form of round bars inserted in the space formed bv the concave portions of adjacent layers of spring elements. In Fig. 8, the round bars are positioned so as to form rollers between the layers, thus reducing the friction.
Patent GB-218791-A (GB)
Title: Improvements relating to loose leaf books
IPC: B42F13/04
Filed: 1923-05-09
Abstract: 218,791. Morland & Impey, Ltd., and Horstield, W. R. May 9, 1923. Flexible-band files; clamping-devices; covers.- In a loose-leaf binder of the kind having thongs tightened by screw mechanism mounted in one of the covers, the stresses set up by the tightening operation are localized in a bar fixed to the inner edge of one of the covers. The bar a comprises a metal strip of trough section slotted to carry thongs b, the sides of the centre portion of the strip being bent inwardly to form a socket g, which supports one end of the screw e, and the bottom of the trough being formed with an aperture i through which a key is inserted to engage and rotate the screw e. The threads of the latter engage in oblique slots formed in two strips d constituting a crossbar to which the ends of the thongs are attached, the screw being in compression while tightening the thongs. The cover m comprises a sheet of cardboard having a recess n divided into three portions by strips p, and may be enclosed in canvas, leather, &c.
Patent GB-670556-A (GB)
Title: Improvements in or relating to portable block and tackle lifting apparatus
IPC: B66D5/00
Filed: 1946-04-25
Abstract: 670,556. Winding and paying-out apparatus; jib cranes. FRANKS, A. L., and DIDSBURY ENGINEERING CO., Ltd. April 25, 1946. No. 12531/46. Addition to 552,892. Classes 78 (iv) and 78 (v). The invention of the parent Specification is modified in that means are provided for preventing rotation of the winding drum in the direction of unwind when the tension of the load is removed. and in that means are provided to prevent engagement or disengagement of the load retaining pawl except when the brake is applied. In the embodiment shown the winding drum d, Fig. 1, is flanged to form the ratchet wheel d<SP>1</SP>. To prevent continued rotation of the drum when the tension of the load is removed, an arm f pivoted at f<SP>2</SP> carries a tubular socket f<SP>3</SP> in which is slidably mounted a pawl g held therein in a retracted position by a spring g<SP>1</SP>. A roller f<SP>1</SP> carried by the arm is positioned to flex the cable fall e so that the cable when in tension acts upon the arm in opposition to a spring h. Release of the tension allows the spring to force the pawl into engagement with the ratchet wheel and prevent rotation of the drum. A pawl k which holds the load in a raised position is disengaged for the lowering operation by a trigger m which is retained in its load lowering position by a catch o pivoted at o<SP>2</SP> having a projection o<SP>4</SP> adjacent a projection j<SP>3</SP> on the brake lever j. Movement of the projection o' during the operation of the trigger in or out of the lowering position necessitates that the brake be applied to enable projection o<SP>4</SP> to pass behind the projection j<SP>3</SP>, the brake only being releasable when movement of the trigger is completed. Centrifugal governor brake mechanism geared to the winding drum is provided to prevent too rapid lowering of the load.
Patent GB-213148-A (GB)
Title: Improvements in metal carrying handles for bags, cases and the like
IPC: A45C13/26
Filed: 1923-05-10
Abstract: 213,148. Cheney, C. W. May 10, 1923. Bags. - A handle for a bag or case is formed from interfitting upper and lower arched metal parts a, c, Fig. 1, of approximately semicircular section, connected together by the ends of the upper portion being formed with extensions a<2> having either reduced ends adapted to be passed from the inside through transverse slots c<2> in the lower part and clinched over, or, as shown in Fig. 9, having side enlargements a<3> adapted to be passed through longitudinal slots c<3> in such lower part. The turned-over extensions provide barrels d for the attachment loops e. The clinched-over parts a<2>, a<3> may be soldered to maintain them in place.
Patent GB-679829-A (GB)
Title: Improvements relating to liquid-level gauges
IPC: G01F23/02
Filed: 1949-05-11
Abstract: 679,829. Gauge glasses. BRITISH TRANSPORT COMMISSION, and THYER, L. Aug. 11, 1950 [May 11, 1949], No. 12619/49. Class 123(i) A gauge glass 1 for a locomotive boiler &c. has plane rear and front faces 2, 3 respectively and curved side faces 4, these faces 4 being struck about spaced centres or, alternatively, each being in the form of a series of curves or narrow plane surfaces approximating the curved surface shown. The glass is fitted within a mounting comprising a body 8 and a channel-shaped front bar 9, the body 8 having a vertical steam- and-water space 19 and the bar 9 being secured at its ends to the body and provided with adjustable studs 14 which latter coact with a bar 13 housed in the channel thereof and bear on the glass through a jointing layer 17, asbestos-rubber &c. packing 18 being interposed between the glass and the bottom of a recess 20 surrounding the said space 19. Outwardly-flared shields. 22 are attached to opposite sides of the body 8.
Patent GB-722207-A (GB)
Title: Improvements relating to lockable reel mountings in strand handling machines
IPC: D07B7/06
Filed: 1952-05-19
Abstract: 722,207. Stranding machines. SYNCRO MACHINE CO. May 19, 1952 [Dec. 8, 1951], No. 12631/52. Class 109. [Also in Groups XXIV and XXVIII] A reel carrying arbor 61, Figs. 7 and 8, in a stranding machine has a flattened portion adjacent each end, 63 and 66, to facilitate entry into a keyhole portion 69 in supports 10. A T piece 68 pinned to the arbor is provided with holes 70, one of which is engaged by a stud 71 carried by a spring member 72 to lock the arbor in position with the narrowed portion at right angles to the neck 69. In a modification, Fig. 2, the arbor may comprise a shaft 22 having trunnions 31 and 37 pinned thereto which are provided with the flattened portions. A sleeve 21 carrying the reel 20 may rotate about the shaft 22 in bearings 23 and 24. The reel may drive a brake disc 18 through a spigot 27. Spacers and washers 28 and 29 may be fitted on the shaft.
Patent GB-953463-A (GB)
Title: A current transforming device
IPC: H01F38/30
Filed: 1960-04-08
Abstract: 953,463. Transformers. SIEMENS & HALSKE A.G. April 8, 1960 [April 8, 1959; Feb. 11, 1960], No. 12689/60. Heading H1T. [Also in Division H2] A current transforming device comprises an electrodynamic system on the high voltage side and another on the earth side, each having moving coils connected by an insulating body so mounted as to provide a substantially undamped oscillating system, means being provided for tuning the resonant frequency of the system to the nominal frequency of the current to be measured. The parameters of the system may be selected in accordance with a given formulµ. Fig. 1 shows a current transformer 7, 8, 9 feeding through flexible conductors the movable coil 10 which reciprocates in the field of permanent magnet 3 and secured by a thinwalled insulating tube 12 or by gloss, quartz or prestretched nylon threads in tension (Fig. 2, not shown), to a corresponding movable coil 13 forming part of an identical electrodynamic system 17, the output of this system produced by movement of coil 13 corresponding closely to the high voltage current in 8. A resistance or capacitative voltage measuring arrangement may be housed in outdoor insulator 1. In another arrangement the insulating tube 112 (Fig. 3) is controlled by coil springs 114, 115 of which 115 is provided with a clamping device which enables the natural frequency of the moving system to be brought into correspondence with the supply frequency. Fig. 4 shows a further embodiment in which the frequency of the system is varied by altering the free length of spring 130. In another arrangement (Fig. 5, not shown) the insulating tube is held at each end by vertical wires or quartz threads each attached to a roller on a horizontal shaft, the shafts being adjustable axially to act as torsionrod springs for the system. The oscillatory system may oscillate about its axis instead of reciprocating.
Patent GB-722053-A (GB)
Title: Improvements in reflecting devices for tubular lamps
IPC: F21V7/00
Filed: 1952-05-20
Abstract: 722,053. Lamp reflectors. TOSI, A. May 20, 1952 [May 21, 1951], No. 12759/52. Class 75(2) A reflecting device having two tubular lamps B has a reflecting surface composed of two parts symmetrically disposed about a plane of symmetry A and having parallel generatrices and the transverse section of each part is such that a first rectilinear portion 2 perpendicular to the plane A ends in a curved portion 4 which portion 4 is concave towards the plane A, receives a longitudinally disposed tubular lamp B and terminates in a second rectilinear portion 6 inclined inwardly with respect to the plane A and outwardly with respect to the portion 2. The device may comprise two parabolic symmetrical reflecting surfaces C, Fig. 2, adjustably supported by means of slotted tie-rods 12 from one or more cross-members 8 so as to permit slight angular displacement of the surface C about axis D. The straight line limiting the parabola of each reflecting surface C is inclined with respect to the axis D and the portion of such line above is longer than the portion below the axis D. The distance between the free ends of the second rectilinear portion 6 is approximately the same as the distance between the tubular lamps B.
Patent GB-353512-A (GB)
Title: Improvements in dyeing wool
IPC: D06P1/62
Filed: 1930-04-25
Abstract: Wool is dyed in even shades with badly-levelling dyestuffs in an acid bath at a temperature not exceeding a temperature 20 DEG  C. below the boiling point of the bath, non-dyeing sulphonation products of organic compounds containing at least eight carbon atoms in the molecule being added to the bath.  Preferably the acid agents, such as sulphuric, acetic, formic or lactic acids, or acid sodium sulphate, are employed in larger quantities than those normally used in dyeing wool with the same dyestuffs.  As sulphonation products may be used sulphonic acids or sulphuric esters of fatty acids, such as stearic, palmitic, ricinoleic or oleic acids, of alcohols such as cetyl or dodecyl alcohols, of naphthene or naphthenic acids, or of benzylnaphthalene, tetrahydronaphthalene, cholesterol or quinoline or Twitchell reagents.  In examples woollen goods are dyed (1) in a bath containing Wool fast yellow 3 G, Cyananthrol R, and Supramine red B, with addition of sulphuric acid and sodium palmitic sulphonate (Specification 288,612), [Class 15 (ii), Dyeing, Processes &c. for]), or sodium benzylnaphthalene sulphonate (made by condensation and sulphonation of benzyl halide with naphthalene, Specification 240,318, [Class 15 (ii), Dyeing, Processes &c. for]), (2) in a bath containing Sulphocyanin G R extra, cetyl sulphuric ester and acetic acid, and (3) in a bath containing the dyestuff from 4 - brom - 1 - aminoanthraquinone-2-sulphonic acid and acetyl-p-phenylenediamine, Wool fast yellow 3 G and Supramine red B, with addition of sulphuric acid and naphthenic sulphonic acid or p-quinoline sulphonic acid. Specifications 242,233, 246,507, 248,814, 267,924, 272,967, 274,611. and 326,816, [all in Class 15 (ii), Dyeing, Processes &c. for], also are referred to.
Patent GB-1057936-A (GB)
Title: Improved hose and clamp assembly
IPC: F16L33/04
Filed: 1964-03-26
Abstract: 1,057,936. Hose connections. R. T. DENYES. March 26, 1964 [March 29, 1963], No. 12826/64. Heading F2G. In an assembly of a resilient end portion of a hose adapted to receive a pipe fitting and clamping means contractible radially to clamp the hose on to the fitting, there is provided mounting means which maintains the clamping means in predetermined positional relationship on the hose end prior to reception of the fitting and contraction of the clamping means. As shown, an aperture in the clamp 20 embraces a lug 24 adhesively secured to the hose 18. In modifications, (a) lugs are positioned on either side of the clamp, and the lugs may include stop members to prevent angular movement of the clamp, (b) U-shaped clips engage over the end of the hose and extend over the band of the clamp, and (c) the clamp is held on to the hose by stapling.
Patent GB-699871-A (GB)
Title: Improvements in or relating to heat exchangers of the regenerative or recuperative type
IPC: F28D19/04
Filed: 1951-05-31
Abstract: 699,871. Thermal regenerators, recuperators, &c. BLOMQUIST, U. O. May 31, 1951 [June 15, 1950], No. 12864/51. Class 64(i) In a heat exchanger, the heat-transfer mass, which may be the rotor 10 of a regenerator, as shown, or the tubes of two parallel-tube recuperators, is preheated by air circulated by a fan 32 through an electric or other heater 36 and through one or, as shown, both of the closed chambers 22, 24 formed by insulating or other dampers 20 in the air and gas passages 16, 18. A temperature-responsive element 42 controls the heater 36. If the temperature in the chamber 24 becomes too high an inert cooling gas such as carbon dioxide may be admitted through a valve 33 which may be controlled by a temperatureresponsive element in the chamber 24.
Patent GB-543192-A (GB)
Title: Improvements in and connected with automatically released electric switches
IPC: H01H50/46
Filed: 1940-08-12
Abstract: 543,192. Electrically-released switches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E. Aug. 12, 1940, No. 12867. [Class 38 (v)] A base a made by moulding synthetic resin and adapted to be vertically disposed, is chambered to receive bi-metallic overload releases q which actuate trip bars r, and has a further chamber b for receiving a magnet c, d adapted to be secured to the base by shading devices e as described in Specification 543,190. The armature g is floatingly supported in an insulating carrier f the outer face of which has vertically-disposed parallel contact strips adapted to bridge pillarlike contacts i, i<SP>1</SP> arranged in recesses j in the base a. The carrier f also operates by means of an extension o a spring-plunger n carrying movable contacts m co-operating with auxiliary contacts l. A "start" button p and "stop" button s are also provided, the latter being constructed as in Specification 538,109, [Group XXXV]. Specification 543,193 also is referred to.
Patent GB-271111-A (GB)
Title: Improvements in digesters particularly for use in the whale oil industry
IPC: C11B1/16
Filed: 1927-05-14
Abstract: 271,111. Arentz, T. May 15, 1926, [Convention date]. Digesters.-A boiler 1 particularly for whale oil extraction is provided with a separate steam blow-off pipe 8 in the lower half at a higher level than the drainage pipe 6 for glue-containing water.
Patent GB-143229-A (GB)
Title: Improvements in relation to the construction of walls in concrete, cement or other similar materials
IPC: E04G11/18
Filed: 1920-05-11
Abstract: 143,229. Brown, H. E. Dec. 16, 1914, [Convention date]. Moulds.-A mould for casting concrete building-blocks comprises inner partitions 5 which can be moved towards each other and away from the cast blocks by toggles 9 connected to a horizontal sliding rod 3, or by other means. The sides 1 are fixed to the end 2 and are spaced by a loose end 4 and yoke 12.
Patent GB-252392-A (GB)
Title: Improvements in the manufacture and production of aqueous emulsions and suspensions of liquid or solid substances insoluble in water
IPC: C11D1/22
Filed: 1926-05-21
Abstract: 252,392. I. G. Farbenindustrie Akt.- Ges. May 22, 1925, [Convention date]. Cleansing-compositions.-The Specification as open to inspection under Sect. 91 (3) (a) refers to the use as soap substitutes of aromatic sulphonic acids, or salts thereof; which contain at least one alkyl group and at least one halogen atom or nitro. hydroxyl or amino group. Suitable. acids are diethylmetanilic acid, N-diamylalphanaphthylamine sulphonic acid, dibutylaniline sulphonic acid, isopropylchlornaphthalene sulphonic acid, and isopropylnaphthol sulphonic acid. In examples, a bath comprising a solution of the sodium salt of isopropylchlornaphthalene sulphonic acid is used for the wetting of wool and for the production of lather; a cleansing and washing agent is prepared by mixing with methylcyclohexanone the sodium salt of dibutylaniline sulphonic acid. This subject-matter does not appear in the Specification as accepted. Specifications 11522/02 and 10079/06, [both in Class 2, Acids and salts. Organic &c.] ; 12283/11, [Class 15 (i), Dyeing &c.. Apparatus for]; and 17437/11, [Class 2 (iii), Dyes &c.], are referred to.
Patent GB-274604-A (GB)
Title: Improvements in and relating to coin-freed vending machines
IPC: G07F5/26
Filed: 1926-05-21
Abstract: 274,604. Rose, W. V., and Gibbs, C. R. May 21, 1926. Right to Patent relinquished. Delivery of articles stored in piles; coin action, mechanical-connection.-In a coin-freed vending machine of the type in which a number of delivery drawers are controlled from a single coin shoot so that one drawer may be selected for operation while the others are held locked, and as shown in a machine having two series of drawers with associated coin shoots and locking mechanism, each drawer 8 of a series has a cam slot 14 which co-operates with a pin 31 on a transverse sliding rod 20 common to all the drawers of the series and normally prevented from more than a slight movement by the end of a lever 33 obstructing a shoulder 32 on the rod. When a coin drops from the shoot into a housing 23 and the selected drawer is pulled the first movement of the rod 20 causes its end 20<a >to thrust the coin against a lever 36 projecting into the housing, the lever being pivoted at 37 and provided with a hump 38. When the lever 36 is moved, its hump 38 presses back the detent 33 against the action of a spring 35 and allows the drawer 8 to be drawn out fully. The coin drops through a slot in the base plate but the detent 33 is held in releasing position by a bevelled proiection 42 on the rod 20 until the drawer is returned, when a spring 27 connected to the rod through a pivoted arm 26 returns the rod to its initial position.. The drawers slide in guideways 6 and each has a long projection to co-operate with a latch 17 sliding transversely through the guideway between two drawers, the ends 19 of the latch being bevelled. When one drawer is pulled, its projection 16 moves the latch which holds the other drawer locked. It is also additionally locked by the corresponding pin 31 on the rod 20 entering a lateral extension 15 of its cam slot 14. When there are more than two drawers in a series, sliding latches of various lengths are arranged between each two drawers. The stops 42 may carry bracket,s connected by chains to the coin shoots to give a shaking action and prevent coins from sticking.
Patent GB-899044-A (GB)
Title: Improvements relating to the seasoning of timber
IPC: F26B3/34
Filed: 1960-04-12
Abstract: 899,044. Treating timber. STUBBER, J. H., ROWLAND, L., and PLESS, J. H. April 6, 1961 [April 12, 1960], No. 13061/60. Class 140. [Also in Group XIII] A process for treating timber comprises the simultaneous application of radio frequency dielectric heating and the passage around the timber of a controlled heated atmosphere, in which process the dielectric heating is applied at regular time intervals and the atmosphere is abruptly changed from a dry or a substantially dry to a humid atmosphere at regular time intervals. Timber to be treated is positioned in a kiln between electrodes 24, 25 connected to a high-frequency generator (not shown) and air of controlled humidity is introduced into the kiln through an apertured false floor 17 from a duct 19 having a steam injection pipe 20 regulated by a valve 21 and removed through a duct 22 by a fan (not shown). The upper electrode 24 is mounted on a lid 16 of the kiln through which the timber is introduced into the kiln and the lower electrode 25 is carried by a gallery 23 on the floor 17, the timber being in two layers which are separated by a grid 28 and grids 29, 30 are located between the electrodes and adjacent layers of timber 26, 27. The generator operates at predetermined intervals and at similar intervals the air in the kiln is abruptly exhausted and replaced by fresh air with added steam so as to continually surround the timber with a heated atmosphere of abruptly-changing humidity. Two or more kilns may be utilized using a single generator and instead of the lid 16 suitable loading and unloading apertures may be provided in the end walls of the kiln.