baber/WOPTO huggingface dataset:
Patent GB-956698-A (GB)
Title: New polyepoxides, their preparation and their use
IPC: C07D303/28
Filed: 1961-12-27
Abstract: Polyepoxy compounds of the formula: <FORM:0956698/C2/1> where R1 to R12 are hydrogen or methyl groups and X is an aliphatic or araliphatic hydrocarbon residue substituted by at least one epoxy group are made by epoxidizing a compound of the formula: <FORM:0956698/C2/2> where X1 represents an aliphatic or araliphatic hydrocarbon residue containing at least one carbon to carbon double bond, X1 preferably being a C3 to C22 aliphatic hydrocarbon residue and R1 to 12 all hydrogen, especially when X1 is an allyl residue. Products claimed are restricted to compounds, of formula I wherein X has at least 6 carbon atoms, preferably 6 to 22 carbon atoms. The starting materials may be prepared either by the addition of water to dicyclopentadiene followed by etherification of the alcohol with an alcohol X1-OH, or by the direct formation of the ether by the additive reaction of the alcohol and dicyclopentadiene.  Suitable alcohols named are cinnamyl, crotyl, methallyl, rhodinol, oleyl, erucyl, linoleyl, linolenyl and mixtures of unsaturated alcohols produced by hydrogenolysis of unsaturated natural fatty acids.  The epoxidation may be effected by the use of peracids, mixtures of carboxylic acids and hydrogen peroxide or the two stage process via the hypohalite may be employed.  The examples describe the epoxidation of allyloxy-dihydrodicyclopentadiene using peracetic acid and as alternative succinic anhydride hydrogen peroxide, and oleyloxy-dihydrodicyclopentadiene using peracetic acid.  The compounds may be converted to epoxy resins (see Division C3). Specification 950,285 and U.S.A. Specification 2,393,608 are referred to.ALSO:Polyepoxy compounds of the formula: <FORM:0956698/C3/1> where R1 to R12 are hydrogen or methyl and X is an aliphatic or araliphatic hydrocarbon residue substituted by at least one epoxy group, preferably C3 to C22 aliphatic prepared by a novel process (see Division C2) may be condensed with amines, amides, carboxylic acids or their anhydrides, polyols, in the presence of catalysts, together with fillers, diluents and extenders, numerous examples of which are listed, to give epoxy resins.  The sole detailed example relates to the condensation of epoxidised allyloxy-dihydrodicyclopentadiene with 3, 4 epoxy hexahydrobenzal glycerol and phthalic anhydride. Specification 950,285 is referred to.
Patent GB-1383580-A (GB)
Title: Prover for proving dough pieces
IPC: A21C13/02
Filed: 1972-10-10
Abstract: 1383580 Dough proving apparatus D FRINGAND 10 Oct 1972 [27 July 1972] 46592/72 Heading A4D Apparatus for proving dough prior to baking comprises a charging station 4, Fig. 1, whereat dough pieces are manually loaded on to frames 1, on actuating cylinder 11 for pushing stacks 7 of loaded frames 1 towards a discharge station 5, means for presenting the frames 1 one at a time at the station 5, and each frame 1 comprising a plurality of operable cradles, the station 5 being provided with means 50 for simultaneously opening all the cradles of a frame 1 thereat so that the proved dough pieces fall vertically on to a charging belt 6 of a baking furnace without turning over. As each loaded frame 1 is pushed into the apparatus it is raised by bladed conveyers until a complete stack 7 is formed which is thereupon moved by actuator 11. Similar bladed conveyers adjacent the discharge station raise the frames carrying proved dough to a horizontal conveyor 16 which passes then to a vertical conveyer presenting the frames successively to an operative in a cabin 14, who incises the dough pieces, and through discharge station 5 on to a conveyer 20 which passes the empty frames through an ultraviolet drying and sterilizing tunnel 18 to the charging station. Inlets 22 for cold air from a feed duct 23, fan grids 25 and air outlet grids 26 are provided. EACH FRAME 1, Fig. 3 and Figs. 4-6, (not shown), comprises two cross-members (34), (35) inter-connected by members 49 having rollers 49a and to which ends of the cradles (30) are pivoted. Each cradle (30) comprises two half-shells 31 urged to a closed position by a spring (48) and each rigid with a respective yoke 36 carrying a roller 37. A bar 38 having protruberances 40 each engaging a respective pair of rollers 37 is normally locked alongside member (35) by hooks 41 pivoted on the frame and inter-connected by a rod 47 and having biasing springs (46). At the discharge station 5 a piston and cylinder of the means 50 acts on a pivoted hammer member to cause a flat head of the hammer member to first engage the rod 47 and move it against the action of springs (46) to release the locking of bar 38 and then to push bar 38 down to force the two rollers 37 of each cradle (30) simultaneously apart and thereby to simultaneously force the half shells of each cradle to pivot away from one another to open the cradles and discharge the proved dough pieces vertically on to the conveyor 6.
Patent GB-1530456-A (GB)
Title: Pressure balancing valve
IPC: G05D11/00
Filed: 1975-11-12
Abstract: 1530456 Valves I H BOTNICK 12 Nov 1975 46788/75 Heading F2V In a valve for maintaining constant the ratio of hot and cold water flows from inlets 12, 12a to outlets 11, 11a, the two flows are separated by a diaphragm device D connected between a cartridge body and a spool valve member having valving heads 15h, 16h moving relative shoulders 36, 36a to control flow. The central apertures 37, 37a of the shoulders are sized to restrict flow and create back pressures, which are effective on the diaphragm device. As shown the diaphragm device has a bellows portion, the two ends of which are sealingly clamped between the screwed portions of the valve member, and a central beaded portion 35c clamped by a ring R against a shoulder 35d of the sleeve S. Alternatively the diaphragm device comprises two separate diaphragms (Fig. 4, not shown). The sleeve S closed by a cap C and housing the valve member comprises a cartridge which is screwed into the valve body B. A bimetallic element 50 is attached to the end of the valve member and bears on an adjustable plug 51 so as to move the valve element in response to hot water temperature changes.
Patent GB-1527718-A (GB)
Title: Reference voltage sources
IPC: G05F3/30
Filed: 1974-10-29
Abstract: 1527718 Amplifiers with selectable polarity output SOLARTRON ELECTRONIC GROUP Ltd 15 Oct 1975 [29 Oct 1974] 46868/74 Heading H3T [Also in Division G3] A gain polarity change circuit for a high gain differential amplifier 20 used in a bipolar reference voltage supply circuit for an A-D converter, see Division G3, has a switching transistor TR16 receiving a control voltage at its base terminal 22. When this transistor is blocked, a transistor TR15 is also blocked, and a transistor TR13 operates as a positive unity gain emitter follower, producing the amplifier output at terminal 24. When transistor TR16 is turned on, transistors TR14, TR15 operate as an inverter circuit with a negative gain determined by an input resistor R6 and a negative feedback resistor R7.
Patent GB-997513-A (GB)
Title: Process for dyeing and printing nitrogen-containing fibrous materials
IPC: D06P1/673
Filed: 1963-11-27
Abstract: Fibrous materials containing nitrogen are dyed or printed with water-soluble or dispersible dyestuffs, in the presence of surfactants at room temperature by treating with an aqueous dyestuff preparation containing 4-30% of acid on the height of liquor, storing for at least 10 minutes at room temperature, washing and drying.  The specified fibrous materials are leather, pelts, animal and human hair, feathers, sisal, silk and especially wool, as well as fibres of polyacrylonitriles and polyamides.  The suitable dyestuffs may be acid dyes, reactive dyes, metallised and metallisable dyes, cationic dyes and disperse dyes.  The due preparations may contain as surfactant a non-ionic or cationic agent, e.g. ethylene-oxide condensates with alkylphenols higher fatty alcohols or fatty amines of 10-22 C. atoms, amine salts, quaternary ammonium salts of cyclic or open-chain amines and reaction products of alkylolamides of higher fatty acids with alkanolamines.  Combinations of surfactants may be used, e.g. a non-ionic and a cationic agent or a mixture of two different non-ionics.  Suitable acids are phosphoric, monochloracetic, citric, tartaric, propionic glycollic, lactic and especially acetic and formic acids.  The dye liquors may be applied by padding or printing and the so treated material must be stored in a closed system, e.g. wrapped in polyethylene film or in a rubber blanket.  The storage time may be extended up to 24 hours. Examples are given.
Patent GB-1534515-A (GB)
Title: Methods of setting a parallel roll gap
IPC: B21B31/16
Filed: 1975-11-14
Abstract: 1534515 Rolling mills BETRIEBSFORSCHUNGSINSTITUT VDEh INSTITUT FUR ANGEWANDTE FORSCHUNG GmbH 14 Nov 1975 [20 Nov 1974] 47004/75 Heading B3M  A parallel roll gap is set between a pair of work rolls 14, 15 by first urging one roll 15 towards the other, then reducing the applied force to a fraction of its initial value, and finally moving the roll 15 away from the other to produce a desired gap. The roll 15 is movable by pairs of adjustable wedges 9, 10 which simultaneously act on the two roll ends. Piston and cylinder units 87, are located between the wedges and the backing roll chocks 2 for individual adjustment of the pressures acting on the roll  ends.
Patent GB-1243183-A (GB)
Title: Improvements in or relating to thrust or journal bearings
Inventor: LEOPARD ANTHONY JOHN
IPC: F16C17/03
Filed: 1967-10-16
Abstract: 1,243,183. Bearings. GLACIER METAL CO. Ltd. 15 Oct., 1968 [16 Oct., 1967], No. 47064/67. Heading F2A. A bearing has a plurality of annularly or circumferentially spaced bearing pads 1 which are interconnected to each other by neck portions 2 between the sides of adjacent pads, the pads and the necks constituting a single integral unit. Each pad is supported by a projection 7 on the rear of the pad. The bearing may be either a thrust or a journal bearing. The unit may be machined from a continuous ring or may be cast, e.g. in bronze. The pads may be provided with a surface 4 of white metal, or epoxy resin having bronze PTFE or graphite inclusions.
Patent GB-1071670-A (GB)
Title: Improvements in or relating to electric motor driving units
Inventor: CHANNEN ROBERT GEORGE
IPC: H02K16/00
Filed: 1963-11-29
Abstract: 1,071,670. Epicyclic gearing. SECRETARY OF THE ARMY U.S.A. Nov. 29, 1963, No. 47231/63. Heading F2D. [Also in Division H2] In an electric motor driving unit, e.g. for a vehicle, comprising an independently rotatable armature 45 and field structure 49 connected together by epicyclic gearing 56 which includes an intermediate element 55 not connected directly to either the armature or the field structure but which rotates when one of these is braked to increase the speed of the other, reversal of the element 55 when the motor operates in one direction is prevented by one-way clutch which clutches the element to a non-rotatable body 48. As shown, a second, oppositely acting, one-way clutch is provided, the two clutches comprising balls (81a, 80), Fig. 6, in oppositely cammed slots 80a, 80c of rings 60, 61 whose outer peripheral equi-spaced slots, Fig. 3, are selectively engaged by detents (79, 81), Fig. 4, oppositely slidable by a rack and pinion (64) driven by the energization or otherwise of an electromagnet winding 38 having a toothed plunger 62 biased by a spring 65. High gear operation is obtained by applying to a field structure braking surface 73 an electromagnet brake 50 carried by an axially resilient tubular support 75, whereupon the ring gear 57 is held stationary, and the pinion cage 55 rotates in the same direction as the armature and in the free direction of whichever clutch has been engaged. Half-speed operation is obtained by de-energizing the brake whereupon both the armature and field structure rotate to drive the shaft. The brake, which alternatively may be mechanical or hydraulic, may be applied wholly or partially by an operator to allow the shaft to be stationary, or may be controlled automatically to obtain a predetermined field structure speed by e.g. a governor. A fan 66 impels external cooling air from openings 72 to openings 74, and the motor, of the A.C. or D.C. series type, is supplied via collector rings 70 and brushes 71. Bearings 35c, 53 support the armature shaft, 52 the field structure, and 54 the gearing spider 69 which carries the pinions 67. In another embodiment, Fig. 1, the unit is mounted within an enlarged portion (7) of a stationary axle (9) and its armature shaft (22) is connected by gearing (25, 29, 32) to a surrounding vehicle wheel hub (5) mounted on bearings 11 and having a brake (23). In modifications, the clutch rings are engaged by either of two separate electromagnets, Fig. 9, or two further cammed rings (82, 83), Figs. 7 and 8.
Patent GB-1034138-A (GB)
Title: Tapping and valve assembly for plastic pipe
IPC: F16L41/06
Filed: 1963-11-29
Abstract: 1,034,138. Connecting branches to mains. E. I. DU PONT DE NEMOURS & CO. Nov. 29, 1963 [Dec. 6, 1962], No. 47332/63. Heading F2G. Apparatus for tapping a plastic pipe 2 conveying a fluid e.g. a gas main, comprises a body portion 3 containing a first passageway and adapted to sealingly engage the plastic pipe, a second passageway 34 in the body portion adapted to sealingly engage a second plastic pipe, a freely rotatable cutting element 71 which retains pieces of pipe during the cutting operation and a drive shaft mounted in the first passageway, and valve means mounted in the first passageway and movable from a first position in which it prevents leakage of fluid from the first pipe to atmosphere to a second position in which it prevents fluid flow from the first pipe to the second pipe. The first passageway comprises an enlarged threaded portion 33 for receiving a plug, an intermediate threaded portion 32, a narrower smooth bore 31 terminating in a valve seat 36 and narrow end bore. Receivable in the intermediate portion 32 is a partially threaded hollow cylinder 5 carrying sealing rings 54 sealingly engaging with the smooth bore 31 and containing a drive shaft 81 threadingly engaging the cutting element 71 at a weakened portion 86. The bore end of the cylinder 5 is threaded to form a valve seat 61 which receives a threaded body portion of the cutting element 71 having valve head 79. The outer end of the cylinder 5 forms valve head 53 adapted to engage with valve seat 36. The cutter has an annular friction heated rotatable head which melts the plastic pipe 2 and contains a ridge and shoulder 73 to retain the cut portion of the plastic pipe. When the first pipe has been cut the cutter is retracted and screwed into cylinder 5. When the valve seat 61 and head 79 are sealingly engaged further pressure snaps the drive shaft 81 at the weakened portion 86 and allows the drive shaft to be removed. The body portion 3 can then be sealed by a plug (Fig. 3, not shown). A shoulder 83 on the drive shaft 81 co-operates with a shoulder 57 of an enlarged portion 56 of the cylinder 5 to limit the protrusion of the cutter.
Patent GB-1595498-A (GB)
Title: Process for the preparation of aromatic amines
IPC: C07D295/135
Filed: 1977-11-14
Abstract: A process for the preparation of substituted aromatic amines of the general formula (I) <IMAGE> where R1, R2, R3 and R4 are as defined in claim 1, by direct amination with N-chloramine in a redox-type system is characterised in that an aromatic compound 1-4-disubstituted with an ether group and an acylamino group are reacted with an N-chloramine in an acid reaction medium with a strong acid. Products of this type present considerable difficulties in synthesis by the traditional methods due to the complexity and low selectivity of the processes which lead to the formation of secondary amines and salts. This synthesis technique is instead accompanied by a strong activating effect on the amination and enhanced selectivity. The products thus obtained are of great interest in the field of fine chemicals and particulary in the field of dyes, where they represent basic intermediates for the synthesis thereof.
Patent GB-1119648-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/73
Filed: 1965-07-07
Abstract: The subject matter of this Specification is contained in Specification 1,119,641 but the claims differ.
Patent GB-1326189-A (GB)
Title: Method of and apparatus for filling vehicle gas bags
IPC: B60R21/263
Filed: 1971-10-12
Abstract: 1326189 Generating combustion gases under pressure ALLIED CHEMICAL CORP 12 Oct 1971 [19 Oct 1970] 47479/71 Heading F1L Apparatus for filling a restraining gas bag disposed in a motor vehicle comprises a combustion chamber 12 containing a powder charge which is ignited upon impact of the vehicle to generate gases which burst a diaphragm 16 and enter a further chamber 4 containing a pressurized gas, e.g. air or nitrogen, the gaseous mixture passing through outlet 26 to the bag after diaphragm 18 has been dislodged or broken. The flow of combustion gases into and through chamber 4 and the flow of mixed gases leaving the latter are substantially in the same direction. Diaphragm 18 may be broken by pressure build-up to a predetermined figure, e.g. 4000 p.s.i. or at a given time relative to the firing of ignition squib 10 or bursting of diaphragm 16. In one arrangement bursting of the latter, e.g. at 3000 to 5000 p.s.i., disturbs a probe 34 creating an electrical impulse which is transmitted to signal generator 28. The signal produced passes to a timer 30 which delays by a desired amount transmission of the signal to charges 24 disposed around diaphragm 18. Timer 30 may be omitted from the electrical circuit so that removal of diaphragms 16, 18 occurs almost simultaneously. Combustion chamber 12 contains a baffle 14 to ensure uniformity of pressure acting on diaphragm 16. Chamber 4 is provided with an inlet 20 having a spring- loaded ball valve 22 for initial filling of the chamber with air or nitrogen, e.g. at 1000 to 3000 p.s.i.
Patent GB-1011328-A (GB)
Title: Improvements in or relating to photographic material processing apparatus
IPC: G03D3/06
Filed: 1962-12-17
Abstract: 1,011,328. Photographic apparatus. W. ZINDLER [trading as LUMOPRINT ZINDLER KOMM GES]. Dec. 17, 1962 [Feb. 14, 1962], No. 47552/62. Heading G2A. A photographic processing apparatus comprises a processing tank, a liquid supply container and a motor driven pump connected to a supply duct for pumping liquid from the container through the duct to the tank, the pump being suspended in a liquid-tight flexible covering in the container, the pump inlet passing in sealed manner through an opening in the covering. The pump outlet may be through a mouth in the covering which comprises an annular bead which contains a resilient stiffening element and the bead being supported on the edge of an opening in the top of the container. Alternatively the covering may be clamped at this opening. As shown, pump 21 and motor 22 are placed in flexible casing 17 which is suspended from opening 16 by the top of the casing having an outwardly turned bead 40 (of Fig 3) in which a ring 41 of plastics or metal is embedded. The pump intake 37 and outlet 38 are at opposite ends of the pump, the pump being held in casing 17 by ring 36 and clamp 39. Alternatively, casing 17 is clamped by springs 51 and 52 (of Fig. 5) connected to two struts 45 and 46 which have hooks 49 and 50 which hook over container 12. The hose 18 dips into tank 4 through non-return valve 19. The liquid level in bank 4 is maintained by lever 7 pivoted at 9 and resting on float 11 so that when the liquid level falls lever 7 drops and arm 27 on lever 7 depresses switch 26 connected to the motor 22 to start the motor. Instead of having supply duct 18 through the top of the casing, a casing which has two tube pieces 25 at the bottom of the casing for the pump inlet and outlet may be used; the duct 18 then passing through the liquid container 12. The pump also acts as a heater for the processing liquid and in the form of Fig. 3 as a stirrer as well.
Patent GB-1278020-A (GB)
Title: Building unit for constructional kits
IPC: E04F13/08
Filed: 1970-10-07
Abstract: 1278020 Interlocking building blocks NEWINVENT SA 7 Oct 1970 [6 July 1970] 47781/ 70 Heading A6S A building unit is provided along at least part of an edge or edges thereof with at least four teeth uniformly pitched and distributed in two rows of two or more on either side of a common medial plane, such that the teeth in one row are offset half a pitch in relation to the teeth of the second row and each tooth of at least one of the rows is provided inside the face thereof i.e. the face facing the other row of teeth, with at least one projection extending beyond the medial plane into the tooth space of the other row and wherein the angle included by the flanks of the teeth or the tangents to the flanks of curved teeth is at least 90. In Fig. 5 the inside face of each tooth is convex so that a portion 40 projects beyond plane of symmetry 42. When two such units are joined the teeth deform elastically as shown in Fig. 6. Figs. 7 and 8 show "snaplocking" configurations.
Patent GB-1114755-A (GB)
Title: Improvements in and relating to packages with corner seals
IPC: B65D75/52
Filed: 1966-10-25
Abstract: 1,114,755. Packages. AKERLUND & RAUSING AB. 25 Oct., 1966 [9 Dec., 1965], No. 47865/66. Heading B8C. A package heat-sealed along seams 1, 2 and 3, has additional sealing zones 6 to obviate leakage at corners a. The zones 6 may be of different internal design provided that they are at an angle to seams 2 or 3, and intersect one of the package edges, Figs. 3, 4, 5 (not shown). The package may be made from a 3-ply plastics laminate material. The zones 6 may be produced by lighter pressure than the seams 3.
Patent GB-1372959-A (GB)
Title: Injection moulding method
IPC: B29C45/00
Filed: 1972-10-19
Abstract: 1372959 Injection moulding TZENTRALNA LABORATOBIA STEX 19 Oct 1972 [23 Oct 1971] 48275/72 Heading B5A An article is moulded by injecting a thermoplastic or thermosetting polymer melt into a mould chamber 7 containing gas under pressure, effecting soldification of the melt while subjecting it to a higher gas pressure in the mould, and admitting further melt into the mould while under the increased pressure to compensate for shrinkage during solidification. The melt is injected by an axially reciprocating screw (Fig. 1, not shown) or a ram 3 fed by a screw device 2 into a mould chamber 7 having semi-rigid walls and communicating via ducts 9 with a gas chamber 8. Alternatively (not shown) the gas chamber may be an unfilled portion of the mould chamber. Cavity 8 is made gas tight by a seal 10 and is connected to a container R of compressed air or nitrogen by way of a valve 5 which determines the two pressure levels used. The pressure in chamber 8 helps to stiffen the semi-rigid inner walls and removal of this stiffening pressure by closing valve 5 and opening vent valve 6 aids removal of the moulded article. The polymer may be polyethylene or polyformaldehyde. Gas and injection pressures are given.
Patent GB-974395-A (GB)
Title: An improved storage device
IPC: A47J47/16
Filed: 1962-12-24
Abstract: 974,395. Brackets. REXALL DRUG & CHEMICAL CO. Dec. 24, 1962 [Jan. 23, 1962], No. 48574/62. Heading A4B. [Also in Division B8] A support for a sealing closure 19 for plastic kitchen ware as disclosed in Specification 662,219 comprises a bracket arm 15 having a bead 17, the closure being provided with a resilient tab 20 having a U-shape opening 21 with re-entrant arms 22, the tab being flexible in a direction prependicular to the plane of the U and the space between the arms being widened by a twisting action of the tab about the bead for springing the tab over the bead. The bracket arm is formed as a one-piece moulding of rigid linear polythene, the base plate 10 having openings 12 and sleeves 13 for securing screws, and has reinforcing webs 16 and a sloping free edge with an integral rib 18 beyond which the bead 17 extends. The tab 20 and closure are integrally moulded in flexible regular polythene. In modifications the bead is other than cylindrical, the opening being correspondingly shaped.