baber/WOPTO huggingface dataset:
Patent GB-1068503-A (GB)
Title: Improvements in or relating to moulded or laminated articles and methods for preparing same
Inventor: SCHAFER KENNETH ARTHUR
IPC: B32B27/00
Filed: 1965-04-09
Abstract: A sheet of flexible, highly compressible and readily wettable foamed plastic having open connected cells with an average cell diameter of 0.0025 cm. to 1.3 cm. is impregnated with an unpolymerized thermosetting resinous composition and then by substantially compressing the impregnated sheet the resinous composition is cured to a hardened thermoset condition.  The foamed plastic is preferably polyurethane and the thermosetting resinous composition is preferably an unsaturated polyester dissolved in a comonomer, but epoxy resins, phenol-aldehyde resins, melamine-aldehyde resins and diallyl phthalate resins are also mentioned.  Reinforcing fibres, e.g. glass fibres, may be embedded in the thermosetting resinous composition. When the thermosetting resinous composition is an unsaturated polyester resinous composition, the foamed plastic sheet may be preliminarily impregnated with the unsaturated polyester composition or with the comonomer alone, and then later further impregnated with more of the unsaturated polyester composition. The impregnated foamed plastic sheets may be used as coatings, or in laminates or in the form of a tape for encapsulating articles. The foamed plastic sheets and the thermosetting resinous compositions may be of the same or different colours.ALSO:A sheet of flexible, highly compressible and readily wettable foamed plastic having open connected cells with an average cell diameter of 0.0025 cm. to 1.3 cm. is impregnated with an unpolymerized thermosetting resinous composition and then by substantially compressing the impregnated sheet the resinous composition is cured to a hardened thermoset condition giving an internally coated foamed sheet.  The foamed plastic is preferably polyurethane and the thermosetting resinous composition is preferably an unsaturated polyester dissolved in a comonomer, but epoxy resins, phenol-aldehyde resins, melamine-aldehyde resins and diallyl phthalate resins are also mentioned.  Reinforcing fibres may be embedded in the thermosetting resinous composition. The foamed plastic sheets and the thermosetting resinous compositions may be of the same or different colours.
Patent GB-1108945-A (GB)
Title: Improvements in or relating to power switching circuits
IPC: H03K17/00
Filed: 1965-04-09
Abstract: 1,108,945. Semi-conductor switching circuits. ENERGY CONVERSION DEVICES Inc. 9 April, 1965 [10 April, 1964], No. 15084/65. Addition to 1,070,412. Heading H3T. [Also in Divisions H1 and H2] A switchable A.C. circuit comprises a load and a series-connected pair of semi-conductor bodies or layers of the type described in Specification 1,109,102 which go conductive above an upper threshold value of applied voltage amplitude and revert to a non-conductive state when the amplitude falls below a lower threshold. The amplitude of the supply voltage is less than the sum of the upper threshold voltages of the layers and the control circuit, connected in parallel with one of the layers is designed to apply a voltage in excess of the upper threshold to the other layer to switch it on. The control circuit impedance is such that with the other layer conductive the voltage across the first layer exceeds the threshold to render it conductive thus short-circuiting the control circuit. Near the end of each half cycle the layers go non-conductive but conduction is re-established in the succeeding halfcycle providing the lower threshold voltage of the series layer is exceeded. In a typical circuit the control circuit consists of a mechanical switch in series with a resistor having a value intermediate the resistances of the parallel layer in its two states. Alternatively, in a circuit for controlling the value of a physical variable e.g. temperature or pressure by a heater or pump which consistitutes or is operated by a relay constituting the load, the circuit consists of a resistor controlled by the variable. For example a heater may be controlled by a resistor the value of which increases with temperature to reduce the voltage across the series layer below the threshold and thus open circuit the heater. When the temperature falls to a certain level the voltage across the series layer exceeds the upper threshold and the circuit is re-established. The sensitivity of the resistor and closeness of the upper and lower threshold voltages determine the precision of the temperature control. In alternative circuits e.g. that shown in Fig. 7, the control circuit consists of the secondaries of one or more control signal transformers and a resistor 27<SP>11</SP> the value of which is such that both layers remain non- conductive in the absence of a control signal. When a suitable signal is applied by closing switch 30 or 30<SP>1</SP> the threshold voltage of the series layer, in this case the end of layer 10b is exceeded to close the load circuit. Instead of the OR control thus provided AND control may be obtained by connecting the transformer secondaries in series.
Patent GB-836241-A (GB)
Title: Improvements in organophosphorus-silicon compounds
IPC: C07F9/40
Filed: 1957-05-13
Abstract: The invention comprises organophosphorus derivatives of silicon having the general formula <FORM:0836241/IV (a)/1> where R and R11 are monovalent hydrocarbon or halogenated hydrocarbon radicals, R1 is a monovalent hydrocarbon radical, all of them being free from aliphatic unsaturation, Z is an alkylene radical of at least 2 carbon atoms or such a radical in which a hydrogen atom is replaced by a silanyl radical, m is 1, 2 or 3, n is 0, 1 or 2, and m+n is not more than 3.  They may be prepared by reacting a di-organohydrogen phosphite of the formula HP(O)(OR)2 with an alkenyl silane of the formula AmSi(R11)n(OR1)4-m-n, where A is an alkenyl group, e.g. vinyl, allyl or methallyl.  A catalyst is preferably employed, particularly azo and peroxy compounds, potassium metal and potassium organo derivatives.  Temperatures are generally from about 75 DEG  C. upwards.  The compounds can be hydrolysed, alone or with other hydrolysable silanes, silanols or siloxanols, to give polysiloxanes. Copolymers may also be formed by co-condensing the homopolymer with other polysiloxanes.  The examples describe the preparation of: diethyl and dibutyl phosphonoethyltriethoxysilane; diethyl and dimethyl phosphonoethyldiethoxymethyl silane; diethyl phosphonopropyl triethoxy silane; di-(chloroethyl)phosphonoethyl diethoxyphenyl silane; dibutyl phosphonoethyl ethoxydiphenyl silane; bis-(dibutyl phosphonoethyl)-diethoxy silane; dibutyl phosphonoethyl diethoxyvinyl silane; and the compound 2-(diethyl phosphono), 2-(triethoxysilyl)-ethyl triethoxy silane is also mentioned.  The preparation of polysiloxanes, including copolymers, from the above compounds is described, using as catalysts phosphorus oxychloride, phosphonitrilic chloride trimer or tetramer or fuming sulphuric acid. Some cross-linking may develop through hydrolysis of the OR group on the phosphorus to give <FORM:0836241/IV (a)/2> groupings.  As further condensing agents, there are also specified zinc, tin and zirconium octoates and tetramethyl ammonium hydroxide.  Copolymers of units derived from the above compounds with dimethyl siloxane units which are end-blocked by trimethylsiloxy units are useful as lubricating oils.  The polysiloxane gums are convertible to rubbers by the use of the usual fillers and curing agents, and are unaffected by high-energy electrons and are resistant to aromatic solvents.
Patent GB-947013-A (GB)
Title: A method of rolling down thin and long strips consisting of difficultly workable materials, particularly high alloy steels, by hot reversing rolling
IPC: B21B31/20
Filed: 1962-04-18
Abstract: 947,013. Rolling. SCHLOEMANN A.G. April 18, 1962 [April 21, 1961], No. 15128/62. Heading B3M. In a method of rolling high alloy and difficultly workable metals in a multi-roll reversing mill, the leading and trailing ends of the stock to be rolled are formed into a V- shaped beak such that, due to the elastic flexure of the rolls decreasing as the workpiece area lessens, the beak when leaving the rolls is longitudinally tapered, thus permitting the use of a smaller pass when the stock re-enters the pass. Fig. 3 shows how the workpiece ends are tapered after rolling the tapered beaks. A mill suitable for the process is shown, the mill being usable as a four-high mill for roughing, and as a six-high mill when rolls 3, mounted in a supplementary frame 5, are slid into position. The rolls 3 are offset [from the plane of the axes of the back-up rolls, and are adjustable by hydraulic pistons 8 so that they can be offset on either side for reversible rolling. Stops 10 on the frame 5 limit axial movement of the rolls 3. Specification 947,014 is referred to.
Patent GB-421329-A (GB)
Title: Improvements in or relating to pressure-operated contact devices for railways, especially for railway signalling and level crossing operating systems
IPC: B61L1/04
Filed: 1934-05-22
Abstract: 421,329. Train - operated electric contact devices. BARBORA, V., 5, Myslikova Street, and FRYBA, J., 107, Ceskomor. avskß Street, both in Prague. May 22, 1934, No. 15261. Convention date, May 20, 1933. [Class 105] An electric contact is operated by the sudden depression of a rail, arising on the passage of a train, depressing an upwardly urged piston 2 in a closed cylinder 21 containing glycerine or oil to force out a smaller piston 4 giving a larger movement which is further magnified by a pivoted lever 15 carrying the contact. Slow settling down movement of the rail does not affect the contact as the pistons have throttled leakage passages 13, 14. Spring-loaded non-return relief valves 10 allow the fluid to pass to the other side of the main piston 2 after the lightly loaded small piston 4 has moved. One of the valves 10 may be arranged reversely so that a quick upward movement of the piston is possible. Two such devices may be spaced along the line and arranged to give a directional effect or to give a final response only with high speed trains so that for example a level crossing signal some distance away is only actuated by a high speed train.
Patent GB-1200262-A (GB)
Title: Improvements in or relating to timer for operating electric switches
Inventor: SCUTT DENNIS CLIFFORD
IPC: H01H43/10
Filed: 1968-03-29
Abstract: 1,200,262. Time switches; mechanical interrupters. MAGNETIC DEVICES Ltd. 28 March, 1969 [29 March, 1968], No. 15272/68. Heading H1N. A rotary interrupter or cycle timer comprising a motor 10 driving a cam-shaft 13 via reduction gearing and clutch 12 is provided with means for returning the cams (not shown) to a datum position at the end of a cycle, or when required, or upon failure of the power supply. A housing 15 mounted on an arbor 16 freely rotatable on shaft 13 surrounds a ratchet wheel 14 secured to shaft 13 and carries a pawl 18 pivoted at 17 to engage the wheel 14 under action of a spring 19. A flat coil spring 20 is attached at its inner end to arbor 16 and at its outer end to a support pillar 21 and tends to rotate the housing, and hence wheel 14 and shaft 13, in the direction opposite to the drive from motor 10. When a lever 30 is urged to the position shown in Fig. 1 (against the action of a spring 33) the clutch 12 is engaged and the motor 10 drives shaft 13 and cams (not shown) which operate a number of electric switches in sequence. The wheel 14 drives housing 15 (via pawl 18) and spring 20 is wound up until after almost a complete revolution of housing 15 a recess 29 is aligned with a projection 27 on a lever 25, whereupon a spring 28 urges the projection 27 into the recess 29 to disengage the pawl 18 from wheel 14 and hold the housing 15 against the return force of spring 20. The cam-shaft 13 continues to be driven without further action on housing 15. When lever 30 is released the clutch 12 is disengaged and lever 30 abuts lever 25 to remove the projection 27 from recess 29-the spring 33 being stronger than spring 28. This releases the housing 15, and lets pawl 18 re-engage wheel 14; spring 20 then rotates the housing 15, wheel 14 and cam-shaft 13 back to a datum position determined by engagement of a pin 40 on wheel 14 with the end of a pivoted arm (41, Fig. 2, not shown) which is spring-loaded to allow forward rotation of pin 40 past it but to block its return. The lever 30 may be operated (against spring 33) by a solenoid (34, Fig. 4, not shown) in which ease failure of supply de-energizes the solenoid and automatically resets the camshaft 13. The solenoid may be energized over a switch actuated by one of the cams on shaft 13 so that resetting occurs on completion of a sequence cycle.
Patent GB-1304415-A (GB)
IPC: C07J1/00
Filed: 1970-04-01
Abstract: 1304415 Preparation of 17α-hydroxy or acyloxyandrostane compounds ORGANON LABORATORIES Ltd 1 April 1970 [8 April 1969] 15371/70 Heading C2U A 17α-acyloxy or 17α-hydroxy steroid is prepared by reacting a 17#-sulphonyloxy steroid, derived from any organic sulphonic acid, with an alkali metal salt of a C 1-6  aliphatic carboxylic acid in the presence of a C 1-6  aliphatic carboxylic acid and an aprotic solvent and, when required, hydrolysing the 17α-acyloxy steroid first formed to the free 17α-hydroxy steroid. Suitable starting materials are sulphonates of testosterone, 19-nortestosterone, estradiol, 17#-dihydroequilin and 17#-dihydroequilenin. The sulphonyloxy steroids can for example be derived from alkyl-, aryl- or aralkyl-sulphonic acids. If the alkali metal salt reagent is derived from an acid different from the free acid reagent used then a mixture of different 17α-acyloxy products is formed. The preferred solvent is dimethylformamide.
Patent GB-1060931-A (GB)
Title: Improvements in or relating to apparatus for monitoring and controlling the dispensing of material
IPC: G05D7/06
Filed: 1965-04-12
Abstract: 1,060,931. Intravenous administration. COR BIN-FARNSWORTH, Inc. April 12, 1965 [April 27, 1964], No. 15429/65. Heading ASR. [Also in Division G4] If the blood-drip feed rate departs from a predetermined standard the feed is cut off and an alarm operates. The standard is set up on a drop rate pulse generator 31. Blood drops from a reservoir 12 energize a photo-electric device 17. Pulses from 31 and 17 are fed to opposite sides of a main-drive flip-flop 32 and also through OR gate 41 to a flip-flop 37 which reverses at every input pulse. As long as the drip rate is matched to the desired rate flipflops 32, 37 remain in phase. If however two pulses from 31 or two pulses from 17 occur in succession then low-rate or high-rate alarm gate 52 or 53, respectively, opens to light lamp 55 and release solenoid 25, so cutting off the feed.
Patent GB-653354-A (GB)
Title: Improvements in and relating to current distribution in mercury cathode electrolyticcells
IPC: C25B9/14
Filed: 1948-06-08
Abstract: 653,354. Mercury-cathode electrolytic cells. INTERNATIONAL ELECTROLYTIC PLANT CO., Ltd., WOOD, W., and BOWEN, C. E. June 8, 1948, No. 15430. [Class 41] A mercury-cathode electrolytic cell is in the form of an elongated trough containing mercury to which current is fed by at least one tubular conductor extending longitudinally at least the major part of the length of the trough, the conductor being immersed in the mercury and projecting at both ends from the trough for connection with a circulating fluid, for example, cooling water. In the arrangement shown in Figs. 2 and 3, the floor of the cell 1 has channels 8 for cathode conductor tubes 9 which extend through the end walls 2 and are connected to bus-bars 11. The tubes are hollow and cooling fluid is passed through them. Mercury from a denuder (not shown) is supplied to the cell through an inlet 4 and withdrawn through an outlet 5, the openings 4 and 5 being provided with mercury seals. The anodes are connected to bus-bars 14a to which current leads 15a, 15b are connected at the middle of the cell. In a modification shown in Fig. 7, the cathode conductor tubes are shorter and extend through the bottom of the cell. Mercury seals are provided extending across the width of the cell at each end and comprising baffles 18b and troughs 17b.
Patent GB-1182651-A (GB)
Title: Polymerisation Catalysts and Polymers prepared therewith
IPC: B01J37/34
Filed: 1967-04-04
Abstract: 1,182,651. Polymerisation catalysts. MONSANTO CO. 4 April, 1967 [4 April, 1966; 6 March, 1967 (4)], No. 15492/67. Heading B1E. [Also in Divisions C2, C3 and C7] A polymerisation catalyst is prepared by forming a mixture of (1) a compound having the general formula Xn MCR<SP>1</SP>R<SP>2</SP>-(-M X( n-1 ) CR<SP>1</SP>R<SP>2</SP>) p  MX n  in which each of R<SP>1</SP> and R<SP>2</SP> is a hydrogen atom or a hydrocarbon group or R<SP>1</SP> and R<SP>2</SP> taken together with the carbon atom to which they are attached form a vinylidene group in which one or both of the hydrogen atoms may be replaced by hydrocarbon groups, M is boron or a metal from Group II, IIIA or IVA of the Periodic Table according to Deming, each X is a halogen atom, n is an integer which is one less than the valency of M and p is zero or an integer, and (2) a compound of a transition metal from Groups IB, IIIB to VIIB or VIII, or a complex containing such a compound R<SP>1</SP> and R<SP>2</SP> preferably have not more than 8 carbon atoms. Metal compounds (2) are preferably used in the highest oxidation state of the metal. Preferred salts under (2) are the halides; mixed halides and cyclopentadienyl compounds are also very suitable. An especially preferred class of titanium compounds are (R<SP>4</SP>Z) m  TiX<SP>1</SP>( 4-m ) in which R<SP>4</SP> is a hydrogen atom or a hydrocarbon group m is an integer from 1 to 4, Z is an oxygen, sulphur, selenium or tellurium atom or an -NR<SP>4</SP>- group. Another useful class of compounds under (2) are (R<SP>4</SP>) 3 QTiX 4 <SP>1</SP> in which Q is a N, P, As, Sb or Bi atom or a monoxide or monosulphide of P, As or Sb. Acetyl acetonate compounds of V, Mn, Fe, Co, Ni, Cr, Ti, Zr, or Mo are also useful. The catalyst may be prepared by electrolysing a compound CR<SP>1</SP>R<SP>2</SP>X 2  using (a) an anode formed from boron or a metal from Groups II, IIIA or IVA and (b) an anode formed from a transition metal from Groups defined above or an anode of an alloy of an element under (a) with a transition metal under (b). The electrolyte is preferably X n MOR<SP>3</SP> where R<SP>3</SP> is a hydrogen atom or an organic group and it is preferably carried out in the presence of an inert gas or ethylene. The catalyst may also be prepared by heating under substantially anhydrous conditions a halide CR<SP>1</SP>R<SP>2</SP>X 3  with an alloy of (1) boron or a metal from Groups II, IIIA or IVA with (2) a transition metal from Groups IB, IIIB to VIIB or VIII.
Patent GB-272541-A (GB)
Title: Method of producing a substance having disinfectant, cosmetic, tanning or like properties, and suitable for the treatment of textile materials
IPC: C07G99/00
Filed: 1927-06-10
Abstract: 272,541. Keleti, K. June 12, 1926, [Convention date]. Soaps, materials and compositions for making. -Compositions for use as disinfectants, as cosmetics for preventing perspiration, as leather tanning agents, for treating seeds, and in the textile industry for treating wool to improve its appearance and strength and to render fabrics waterproof, consist of a mixture of soap, an aldehyde other than acetaldehyde, and chlorine or bromine, or compounds yielding these halogens. A heavy metal compound or carbon disulphide, or both, may also be added. Complex chemical compounds of the various ingredients are stated to be formed. According to an example a mixture of olive oil, alcohol, formaldehyde and potash lye is allowed to stand until saponified, and chlorine is then passed into the mixture. A water solution of chromium sulphate and a mixture of carbon disulphide and alcohol mav also be added. The composition may be prepared in liquid, pastelike, or solid form. Soda may be used in place of potash, a ready-made soap may be used, and the aldehyde-metallic compound may be added to a soap lye made by the cold process or may be added during milling, chlorine or bromine or compounds yielding these halogens also being added to the soap in all cases. The various chemicals may be added as such, or may be produced by reaction in the mixture; and the fats, fatty acids, and volatile oils used in the manufacture of the soap may be halogenized so that further addition of halogen is not required. The Specification as open to inspection under Sect. 91 (3) (a) does not exclude the use of acetaldehyde, and states also that iodine or a sulphocyanide may be used in place of chlorine or bromine, that derivatives of carbon-disulphide may be used, and generally that the aldehyde and soap may be mixed with any of the other substances referred to singly or in combination. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 223,601.
Patent GB-909378-A (GB)
Title: Method for hardening proteins
IPC: C08L89/00
Filed: 1961-04-28
Abstract: Proteinaceous material is hardened by addition thereto, as a hardening agent or agents, of a compound or compounds having the general formula Fo2S-Ar-A-A1-(CH2)n-X where Ar represents an arylene nucleus; A represents a single bond or a bivalent radical e.g. -NH- or -O-; A1 represents a carbonyl or a sulphonyl radical; n is a positive integer from 1 to 3, and X represents a halogen atom.  The material to which the hardening agent is added may form, or may subsequently be used to form, a proteinaceous layer e.g. a light sensitive layer such as a gelatino silver halide emulsion layer, such a layer possibly being one of a plural layer material suitable for use in a photographic reproduction process.  The preparation of N-2-chloropropionyl-m-fluorosulphonylanilide by the reaction of m-fluorosulphonylanilide with chloropropionyl chloride in anhydrous ether; m-fluorosulphonyl phenacyl bromide by the reaction of bromine with m-acetyl benzene sulphofluoride in acetic acid; N-chloroacetyl-m-fluorosulphonyl anilide by reaction of m-fluorosulphonyl aniline with chloroacetyl chloride in anhydrous ether; N-chloromethylsulphonyl-m-fluorosulphonyl anilide by the reaction of m-fluorosulphonyl aniline with chloromethyl sulphochloride in benzene; and N-bromoacetyl-m-fluorosulphonyl anilide by the reaction of m-fluorosulphonyl anilide with bromoacetyl bromide in anhydrous ether, are described.  Specifications 614,155, 654,630, 654,631, 822,061, 860,631, 860,632 and 891,221 are referred to.
Patent GB-201703-A (GB)
Title: Improvements in, and relating to, means for insulating and protecting electric wire or cable joints
IPC: H01R4/22
Filed: 1922-06-06
Abstract: 201,703. Humphry, G. W. June 6, 1922. Wire couplings.-Twisted wire joints are enclosed by an insulating cap, Fig. 1, comprising a closed tubulus 4 of vulcanized rubber united to a pure rubber lining extending to form a coneshaped portion 2 with equi-distant openings or slits through which wires are passed. After jointing this cap is manipulated so that the joint is pulled into the tubulus, the normal set of the pure rubber component securing it and sealing the joint. In a modification, Fig. 2, the external part of the pure rubber element has two aprons 2 slotted longitudinally and these are taken in turn round the wires and over the cap 4, one passing through the slit in the other as shown in B, C, Fig. 2.