baber/WOPTO huggingface dataset:
Patent GB-213875-A (GB)
Title: Bathing cap
IPC: A42B1/12
Filed: 1923-10-10
Abstract: 213,875. Auster, L., and Auster, M. April 2, 1923, [Convention date]. Waterproof caps.-The usual ruboer head covering with a reinforced edge 16 is provided at its lower portion with an additional layer and ribs 13<d> to straddle the ears. The ribs may be between the two layers or next the head. An extension 13<e> of the ribs 13d causes the lower edge of the band 16 to hug the nape of the neck. A band provided with the ribs 13<d> and 13<e> may be worn with an ordinary bathing cap.
Patent GB-1112319-A (GB)
Title: Improvements in or relating to brake systems for pithead winding gear
IPC: B66D5/26
Filed: 1965-06-15
Abstract: 1,112,319. Brakes for winch drums. G. A. BLACK. 19 May, 1966 [15 June, 1965], No. 28342/65. Heading B8B. [Also in Division F2] An unbalanced double drum winder of a pithead winding gear, has a braking system whereby the maximum braking torque available to each drum at any instant during the wind is sufficient to induce an angular retardation of the same magnitude, which is the same for each drum whether the drums are coupled together or not. The maximum braking torque available varies as the winding proceeds, but at any instant, corresponds to the same angular retardation of the drums. Each of the two drums has an identical braking system controlled by a driver's single control valve 4 and an emergency trip valve 5. The circuit for one drum, shown on the left of the Fig. comprises brake release cylinders 3 operable to compress springs 6 which normally urge the brake into the applied position. Fluid is supplied to the cylinders 3 by a pump 1 via a pressure relief valve 2. The pressure level of the fluid in circuit is controlled by either of the variable relief valves 8, depending on the direction of drum wind. Each valve 8 is controlled by a pivoted lever 9 engaging a cam 10 which rotates approximately one revolution to a complete wind and a three-way valve 13 operated in conjunction with the winder brings the appropriate valve 8 into service. A centrifugally-operated valve 11 permits relief of pressure from the circuit provided valve 4 or 5 is open, when the speed of wind reaches a predetermined minimum. The valve 11 causes a by-pass of the valves 8. Valves 12, 15 permit an initial surge of fluid pressure and then a slow leak away. A valve 14 is provided to open the circuit to atmosphere to brake that particular drum whilst the other drum is still controlled by the valve 4 or 5.
Patent GB-1387444-A (GB)
Title: Method of coating particles
IPC: C25D5/08
Filed: 1972-05-31
Abstract: 1387444 Coating particulate material with metal by fluidized bed DE BEERS INDUSTRIAL DIAMOND DIVISION Ltd 31 May 1972 [1 June 1971] 25443/72 Headings C7B and C7F A method of metal coating particulate material (e.g. electrolytically or electrolessly) includes the steps of forming a bed of particulate material, fluidizing the bed by passing a metal coating solution through it, pulsating the flow of coating solution to cause the bed to pulsate, and causing the metal to deposit onto the material. The particulate material may be abrasive such as diamond, cubic boron nitride or silicon carbide or may be ceramic. The metal which is applied may be Cu, Ni, Au, Fe or Co. For example Cu is electrolytically coated onto diamond particles having an electroless Ni flashing thereon using a solution containing CuSO H 2 SO 4  and gelatine. As shown, a bed of particles 58 to be coated is fluidized by plating solution pumped upwardly through a perforated plate 44. A carbon cathode 52 contacts the bed and there is a porous membrane 50 and a tubular metal anode 54. The solution is circulated by a peristaltic pump 62 which is operated so as to cause the bed to pulsate. There is a throttling device 64 and flowmeter 66.  Reference has been directed by the Comptroller to Specification 1194181.
Patent GB-297890-A (GB)
Title: Improvements in or relating to respirators, gas-masks and other like apparatus
IPC: A62B18/08
Filed: 1922-09-20
Abstract: 297,890. Sadd, J. A. Sept. 20, 1922. Moulding rubber.-In moulding a rubber gas mask comprising pockets g in the cheeks of the mask and a pocket r adjacent the mouthpiece, these pockets and the eyepiece pockets are formed by detachable cores secured to the main mould, rubber sheet being placed beneath the cores and being united to a large sheet placed over the composite mould when the whole is vulcanized.
Patent GB-263961-A (GB)
Title: Improvements in and relating to means for the intermittent operation of electric circuits
IPC: H01H51/32
Filed: 1925-10-13
Abstract: 263,961. Brettell, F. G., (Gardner, R. N.). Oct. 13, 1925. Reciprocating and oscillating machines.-Interrupters for the circuits of electric signs &c. are operated by an armature carrying a striker which is normally spaced away from a co-operating projection on a spring-controlled balance wheel so that when the armature is attracted by a self-interrupting electromagnet it acquires momentum before the striker engages the projection on the balance wheel to rotate its shaft and operate the controlled switches. As shown in Figs. 1 and 2, the armature of the electromagnet 5 consists of a U-shaped member having projections 9 which are moved into proximity with the ends of the core 6, the cross-member 8 carrying a projection 23 which strikes a projection 22 on a balance wheel 19. The movement of the balance wheel breaks the electromagnet circuit at contacts 24, 25 and by producing an oscillation of the shaft 20 carrying cams 41 controls switches 33 - - 35 in the lamp &c. circuits. The armature and balance-wheel are returned automatically by their springs 14, 31 in readiness for a subsequent operation.
Patent GB-1038675-A (GB)
Title: Process for the production of hexakis (aziridinyl) phosphonitrile
IPC: C07F9/6593
Filed: 1963-06-27
Abstract: Hexakis(aziridinyl)phosphonitrile (2,2,4,4,6,6 - hexakis(aziridinyl) cyclotriphosphaza-1,3,5-triene) is prepared by reacting phospho-nitrile chloride trimer with ethyleneimine in an aqueous aromatic hydrocarbon medium in the presence of alkali metal hydroxide, the ratio of water to hydrocarbon being from 1:0.1 to 1:3 parts by volume.
Patent GB-1340154-A (GB)
Title: Powder coating compositions
IPC: C09D5/03
Filed: 1972-06-01
Abstract: 1340154 Curable powder coating compositions FORD MOTOR CO Ltd 1 June 1972 [16 Aug 1971] 25651/72 Heading C3P A curable powder coating composition comprises (A), a hydroxy group-containing copolymer having a Tg of 40-90‹ C. and a number average molecular weight of 2000-10,000; (B) a cross-linking agent for said copolymer in an amount sufficient to provide 0À8-1À1 crosslinkable groups in said agent for each hydroxy group in the copolymer; and (C) a flow control agent which is a polymer having a number average molecular weight of at least 1000, and a Tg at least 50‹ C. below that of (A). Preferred polymers (A) are derived from 5-20 wt. per cent of an ethylenically unsaturated hydroxy group-containing monomer and 95-80 wt. per cent of one or more other comonomers. Hydroxy monomers exemplified are hydroxyalkyl acrylates and methacrylates, and also N-methylol acrylamide and hydroxymethyl diacetone acrylamide. Comonomers exemplified are alkyl or cycloalkyl acrylates or methacrylates, styrene, (meth)acrylonitrile, acrylic acid, methacrylic acid and ethylthioethyl methacrylate. Cross-linking agent (B) may be a dicarboxylic acid or anhydride or a melamine. Many are specified but those exemplified are: adipic acid, azelaic acid; phthalic-, tetrahydrophthalic-, hexahydrophthalic-, 2- carboxyethylglutanic-, and benzophenone tetracarboxylic anhydrides; hexamethoxymethyl melamine, tetrabutoxymethyl melamine, tributoxymethyl trimethylol melamine; a ureatype resin and a methylol-triazine type resin. Flow control agents (C) exemplified are polylaurylacrylate, poly(2 - ethylhexyl) acrylate, polybutylacrylate, polyisodecyl acrylate, polylauryl methacrylate, polyethyl acrylate, polyisodecyl methacrylate, polyethylene glycol, perfluoro-octoate and polytridecyl methacrylate, all of specified mol. weights and Tg. In the examples, pigments are also present; the polymer (A) is preformed, ground to the desired particle size and mixed with the other powdered ingredients. The compositions are electrostatically coated on to metal panels and cured by baking.
Patent GB-836427-A (GB)
Title: Improvements in or relating to high voltage supply units
Inventor: CHESTER CHARLES JAMES
IPC: H05C1/02
Filed: 1956-08-22
Abstract: 836,427. Converting. JAMES, W. D. M., and JAMES, K. V. R., [trading as JAMES BROS.]. Aug. 16, 1957 [Aug. 22, 1956], No. 25670/56. Class 38 (2). In a converting circuit a transformer having a primary winding P and secondary winding S is supplied with D.C. intermittently through contacts x and is provided with an auxiliary winding A shunted by a condenser C to increase the output voltage of the secondary winding. The circuit is interrupted by a relay R e  controlled by a condenser C 1 , and a condenser C 2  is across the contacts to minimize sparking. In a modification (Fig. 3, not shown) the primary and auxiliary windings are in series and the transformer core controls the opening and closing of the contacts.
Patent GB-190798-A (GB)
Title: Improvements in apparatus for electric discharge through gases
IPC: H01J17/06
Filed: 1921-09-28
Abstract: 190,798. General Electric Co., Ltd., and Ryde, J. W. Sept. 28, 1921. Vacuum tubes.-In order to reduce the starting potential of a discharge tube containing rare gas, such as a mixture of neon and helium, and in which metallic electrodes are employed which do not become incandescent, the cathode is formed of magnesium, calcium, or other alkaline earth metal or alloy and treated as follows. A discharge is caused owing to the development of the spectrum of magnesium; the potential between the electrodes is then decreased until the discharge regains its normal colour. This process is repeated - several times, with the result that the magnesium attains a sensitive condition in which the minimum starting potential is less than 120 volts. The gas should previously have been purified in a subsidiary bulb with a magnesium cathode, which is subjected to the treatment above described. In a modification, both electrodes are of iron or other metal, one being much smaller than the other and placed close to it. A small piece of magnesium is attached to this smaller electrode, which is used as the cathode during the sensitizing process. The sputtered or evaporated magnesium is mainly deposited on the larger electrode, very little reaching the walls of the vessel. During operation of the tube, the larger electrode is used as the cathode.
Patent GB-872422-A (GB)
Title: Stabilizing device for closed loop servo control systems
IPC: G05D3/14
Filed: 1958-08-11
Abstract: 872,422. Servo systems. BOFORS A.B. Aug. 11, 1958 [Sept. 18, 1957], No. 25703/58. Class 40 (1). In a closed loop servo system wherein an output and input signal are compared in a differential unit 1 (Fig. 1) any difference being amplified at 2 to drive a motor 3 and load 4, instability in the system is reduced with the aid of a unit 6 having the same characteristics as the servomotor and load, except for the inherent resonances, and a discriminating device 7 for eliminating the instability components from the feed-back signal. In one arrangement, Fig. 2, the device 7 comprises high and low pass filters 11, 12, the former receiving the signal from the analogue device and the latter the signal from the servo system, the outputs of the filters being combined and fed back to the comparator at the input of amplifier 10. In a modification, Fig. 3, the signal from the analogue unit and that from the servo system both pass high-pass filters with identical bands and one output is subtracted from the other in a device 15, the output of which thus represents instability components only. The complete signal from the servo system is passed to a device 16 in which the instability components selected at 15 are subtracted from it.
Patent GB-645065-A (GB)
Title: Preparation of polymerizable pentachlorostyrene, its polymers and copolymers
IPC: C07C17/25
Filed: 1947-09-22
Abstract: Pentachlorostyrene is polymerized.  Copolymers of pentachlorostyrene may be formed with other vinyl aromatic compounds, e.g. styrene, dichloro- and other halogenated styrenes, nuclear alkylated styrenes, alpha-alkyl styrenes such as alpha-methyl styrene, alpha-alkyl chlorostyrenes, the styrene compound derived from p-ethylbenzoate by dehydrogenation of the ring ethyl group, vinylnaphthalenes or nuclear chlor-substituted vinyl naphthalenes.  In the examples, pentochlorostyrene is polymerized by heating it alone or with benzoyl peroxide, and copolymers are formed by heating it in the presence of benzoyl peroxide with nuclear dichlorstyrenes or styrene. Specifications 588,605, 617,572 and 628,485, [both in Group IV (b)], and U.S.A. Specification 2,193,823 are referred to.ALSO:Pentachlorostyrene is obtained by passing a mixture of monochloroethylpentachlorobenzene and an inert solvent over a dehydrochlorination catalyst at a temperature of 280-400 DEG  C., under reduced pressure or with dilution of the reactants with steam or an inert gas, e.g. nitrogen.  Suitable dehydrochlorination catalysts mentioned are silica gel, activated alumina and phosphate catalyst of Specification 588,605.  The monochloroethylpentachlorobenzene may be prepared by chlorinating in the liquid phase and in the absence of light, ethyl benzene or an ethyl chlorobenzene containing less than five nuclear chlorine atoms in the presence of a halogen carrier favouring ring substitution, e.g., ferric chloride, metallic iron, charcoal, iodine and antimony chloride, to form ethylpentachlorobenzene, which is chlorinated in the light with or without a chlorination catalyst favouring side-chain substitution to replace one of the side-chain hydrogen atoms; pentachlorostyrene is obtained from the product by mixing it with an inert solvent, and passing the mixture over a dehydrochlorination catalyst at a temperature of 280 DEG  to 400 DEG C.  Specifications 617,572 and 628,485 are referred to.  U.S.A. Specification 2,193,823 also is referred to.
Patent GB-173573-A (GB)
Title: Washing machines
IPC: D06F15/00
Filed: 1920-09-07
Abstract: 173,573. Craver, H. S. Sept. 7, 1920. Washing-machines with plungers and dollies having both rotary and axially-reciprocating motion.-In machines having a vertically-reciprccating plunger carrying dollies which is also given a rotary motion, the pawl mechanism which effects the rotation of the plunger is adapted automatically to reverse the rotation at regular intervals. The main shaft 4, which rises through the bottom of the tub 1 and carries a cross-arm 5 and plungers 8, is driven from an electromotor 12 adjustably mounted in a frame 13 and connected through gears 24, 25, crank 28, and connecting-rod 30, to drive a pitman 32 pivoted on a pin 33. An arm 34 of the pitman axially reciprocates the shaft 4 in its sleeve 3, while another arm 64 rotates a pawl-carrier 45 loose on the shaft 4 over a circular arc. On the shaft 4 is fixed a ratchet-wheel 40, Fig. 5, with oppositely facing teeth 56 driven by a pawl 48; Fig. 7, with a long nose 42, and a short nose 43 of opposite hands spring-pressed and retained in the carrier 45. In operation, the nose 43 rotates the wheel 40 until a cam 66 integral with the wheel raises the carrier, when the nose 43 drives the wheel in the reverse direction, and the long tooth rides on the upper surface of the wheel to hold the carrier in the raised position. After about a revolution, the nose 42 slips through a deep notch 70 and restores the parts to their original positions, and the cycle of operations is repeated.
Patent GB-817599-A (GB)
Title: Gas turbine plant
IPC: F02C5/12
Filed: 1957-08-15
Abstract: 817,599. Gas-turbine plant. BUTTERWORTH, E. Oct. 29, 1957 [Aug. 15, 1957], No. 25761/57. Class 110 (3). A gas-turbine plant comprises a casing in which is mounted a rotatable shaft 1 supporting a rotary bladed compressor 4, 5 a pair of rotary disc valves 10, 11 and a turbine rotor 12, combustible gas and air being mixed in carburettors 3 to provide a combustible gas and air mixture which is then compressed in the compressor. The compressed mixture is then admitted to combustion chambers 6, 7, 8, 9 through ports in the rotary disc valve 10, and there ignited, the combustion gases produced in the chambers being discharged through ports in the other rotary disc valve 11 so as to impinge on the blades 13 of the turbine rotor. Passages 18, 19, 20, 21 are provided for the supply of water to the turbine rotor. Exhaust gases are discharged through outlets 14, 15, 16 and 17.
Patent GB-317861-A (GB)
Title: Improvements relating to apparatus for demonstrating the strength of fragile articles
IPC: G01N3/30
Filed: 1929-08-23
Abstract: 317,861. Stabilothern Ges. Aug. 24, 1928, [Convention date]. Moving apparatus.- Apparatus for demonstrating the strength, of a fragile article such as a vacuum flask comprises a base 1 to which are fixed two pillars 6 which support the rollers 2, 4 of a - chain or endless band conveyer 3 having a platform 7 on which the flask 10 is placed. The flask is guided between three thin guide rods 8 the upper ends of which and the upper ends of the pillars 6 are fastened in a plate 9. The flask is raised. and when the platform 7 passes over the upper pulleys 4, the flask is dropped on to the base from which the travelling platform again raises it and so on.
Patent GB-618476-A (GB)
Title: Folding case
IPC: B65D6/16
Filed: 1946-08-28
Abstract: 618,476. Boxes. DURAND, M. P. Aug. 28, 1946, No. 25798. Convention date, Sept. 17, 1943. [Class 18] [Also in Group XXV] In a folding case the sides, ends and covers are arranged to fold flat on to the base without overlapping the base. The covers 12, 13 are hinged to the side walls 2, 3 and the side walls and ends 8 are hinged to the base 1. Sheet metal hinge members connect the sides, ends and covers to the base and may reinforce the lower edges of the erected case. Several cases, when folded flat, may be packed inside one erected case, Fig. 4. A locking bolt for the covers is provided.
Patent GB-1498929-A (GB)
Title: Tack strip
IPC: F16B15/08
Filed: 1976-06-22
Abstract: 1498929 Tack strips U MONACELLI 22 June 1976 [26 June 1975] 25804/76 Heading B8C A tack package comprising a consecutive array of wide head tacks separably connected to each other by drops 4 of a hot melt adhesive positioned between consecutive tack heads 2. The drops may be connected to each other by filaments 5 of the adhesive. The tack strip may be coiled with the stalks 3 of the tacks lying either in the plane of the coil and pointing inwardly or outwardly, or perpendicular to the coil plane. Alternatively the coil may form a cylindrical helix.
Patent GB-196567-A (GB)
Title: Improvements in rotary duplicating apparatus
IPC: B41L13/04
Filed: 1922-09-25
Abstract: 196,567. Bessat, A., and LiÚvens, L. L. April 22, 1922, [Convention date]. Pile tables and supports for sheetfeeds; sheet-separators; sheet guides and smoothers. - The Specification as open to inspection under Sect. 91 (3) (a) comprises sheet-feeding mechanism wherein sheets are fed to a duplicator from a table 61. Figs. 8 and 9 (Cancelled), supported by a torque rod 65 and secured in place by slotted brackets 63 engaging a cross-rod 64. The sheets are held between a back stop 70 adjustably fixed by a screw 71 engaging a slot 72, adjustable side guides 67, 67<1>, and a front stop 79. The latter is vertically slidable in slots 80 and carries blade 81 resting on the sheets. A feed roller 96 carried in arms 95, 95<1> mounted on a rod 94, sliding in slots in the sides 62, 62<1> of the table, is reciprocated by a slotted arm 90 pivoted at 91 and oscillated from the pinion 85 by a connecting-rod 87. A plate 98 is mounted on the rod 94 and is provided with slots 100, 100<1> so as to be relatively slidable with respect to the arm 95. During the forward motion of the latter a projection 97 on the plate 98 engages a rod 99, the plate is detained, a pawl 101 is thereby released and prevents rotation of the roller 96 which then removes the top sheet from under the blades 81. A pawl 104 prevents rotation of the roller in its return journey whereby the sheet is carried over the blades and on to a pivoted guide 83 which directs it to the roller 29 and drum 1. When sheets folded in two are to be fed, a detachable curved plate 73, Fig. 10 (Cancelled), is fixed on the table 1 to initiate the buckling of the sheets, the buckling being completed by a heavy guide bar 75 slidable in a slot in the stop 70. This subject-matter does not appear in the Specification as accepted.
Patent GB-262553-A (GB)
Title: Improvements in or relating to control systems for electrical apparatus such as motors
IPC: H02P1/04
Filed: 1925-10-16
Abstract: 262,553. Scarf, C. T., Last, C. H., and Metropolitan-Vickers Electrical Co., Ltd. Oct. 16, 1925. Protective arrangements.-In a control system for electric motors, particularly coal-cutting machines 36, wherein the reversing control switch 24 - - 26 at the machine end is relieved of the making and breaking of power currents by the remotely-disposed circuit interrupter 11 - - 13 at the gate end, the control of the interrupter is effected by circuits which include one of the power conductors 3 jointly with a pilot conductor 48, 49 of the five-core trailing cable, so that the complete continuity of these conductors is necessary before the motor can be energized. A closing relay with operating coil 47 and contacts 83, 52 controls the energization (from phases 1 and 2 of the supply) of the closing coil 50 of the interrupter. Its coil 47 is connected in series with the secondary 46 of a low-voltage transformer (the primary of which is connected across phases 1 and 2), the contacts of a master relay having a winding 77 and contacts 80, 82, the pilot conductor 48, 49, contact 28 of a pilot switch 28, 72 interconnected with the motor control switch and through the switch 28 to the earthed conductor 42, 41 of the cable. Thus the closing relay cannot be operated to effect the closure of the interrupter until the contacts 80 of the master relay and 28 and 38 or 39 of the pilot switch have been closed. The portion 72, 71 of the pilot switch has a lost-motion connection with the operating handle which closes the control switches and the two parts of the pilot switch in a predetermined order, as shown. The operating coil 77 of the master relay is connected in series with the low-voltage secondary 46, the power conductor 3 (on the side of the interrupter remote from the supply), the contact-member 72 of the pilot switch and so to earth when the member 72 engages with its fixed contact 71. To close the interrupter it is therefore necessary that the circuit of the master relay be closed in order that the circuit of the closing relay may be closed. Since an arc may persist at the contacts of the interrupter for a time on opening, an arcing relay 91 with an overload coil in the phase 3 is mechancally interlocked with the interrupter so that, when the interrupter opens, the control circuit which includes the master relay, closing relay, &c. is connected to the phase 3 only after the arc has subsided and line 3 is dead. The supply circuit to the primary of the low-voltage transformer includes a leakage protection relay 7 carrying the summation current induced in the secondary 6 of a transformer 5 with three primaries in the phases and an overload transformer 56 energized by two of the phases. The earth connection of the secondary of the transformer has in it a mercury tilting switch 76 so that if the apparatus is appreciably tilted the interrupter circuit is broken to ensure safety.