baber/WOPTO huggingface dataset:
Patent GB-1137623-A (GB)
Title: Improved process for preparing aminoalkanenitriles
IPC: C07C255/24
Filed: 1966-06-01
Abstract: 1,137,623. α - Alkyl - omega - aminoalkane nitriles. NATIONAL DISTILLERS & CHEMICAL CORP. 1 June, 1966 [1 June, 1965], No. 24459/66. Heading C2C. α - Alkyl - omega - aminoalkane nitriles are obtained by (a) contacting a dinitrile compound of the formula NC-(CH 2 ) n -C(CN): CR 1 R 2 , wherein n is an integer from 1 to 12 and R 1  and R 2  are hydrogen or C 1-12  alkyl radicals, with hydrogen at 10-100 C. at a pressure of up to 135 atm. in the presence of a Group VIII metal hydrogenation catalyst to obtain a reaction product containing 2-alkyl alkane dinitrile, and (b) contacting the resulting reaction product with hydrogen in an amount of less than 60% of that stoichiometrically required to reduce both nitrile groups in the presence of ammonia and/or a tertiary alkyl amine at 50-150 C. at a pressure of at least 70 atm. in the presence of a Group VIII metal hydrogenation catalyst. The catalyst in the first stage is preferably selected from platinum and palladium metalcontaining catalysts and in the second stage is preferably selected from nickel, cobalt and ruthenium metal-containing catalysts. The catalyst may be employed on a support and in the second stage a promoter, e.g. a metal or metal oxide, may be employed. An inert diluent, e.g. a C 1-12  alkanol, may be employed in the process. In an example, 2-methyl aminovaleronitrile is prepared from 2-methylene glutaronitrile using a palladium on carbon catalyst in the first stage and a Raney cobalt catalyst in the second stage: 2-methyl-1,5-diamino-pentane and 3-methylpiperidine are also produced.
Patent GB-312873-A (GB)
Title: Improvements in or relating to appliances or devices for maintaining in shape soft felt hats or similar soft hats
IPC: A42B1/00
Filed: 1928-08-27
Abstract: 312,873. Samuel, H. E. Aug. 27, 1928. Stiffeners.-An appliance for maintaining soft hats in shape comprises two strips a, a<1> of thin springy material having at their ends holes by which they are connected together by easily detachable pivot fastenings, and, near the ends, additional holes co-operating with holes in front and rear supports b of approximately rectangular shape of less width than their height, the latter holes being engaged by similar fastenings. The fastening comprises a head c, neck c' and bulbous enlargement c<2>. The supports b may have three vertical rows of superposed holes, or the central row or the outer rows may be substituted by slots. The underside of the head of the fastener may be cemented in position.
Patent GB-1469327-A (GB)
Title: Inking unit for printing machines
IPC: B41F31/24
Filed: 1974-06-03
Abstract: 1469327 Printing TOTALIZATOR AGENCY BOARD 3 June 1974 [4 June 1973] 24558/74 Heading B6C An inking unit comprises a rotatably mounted ink reservoir 2; an inking roller 6 mounted for rotation on shaft 12, the shaft being rigidly connected to the reservoir; and an elongated wick 5 extending from the reservoir and having its outer end in contact with the periphery of the inking roller. Spring 66 holding the inking roller out of contact with the surface to be inked, and the roller being intermittently brought into contact with this surface by actuation of a solenoid attached to spring 65. The inking roller may have a polyurethane surface carrying grooves, and its shaft 12 be supported in brackets 8 formed on the side walls of the reservoir. Rotatable member 17 having slots 19, 19<SP>1</SP> secures the member in the brackets. Screw assembly 50 allows the ink supply to be controlled by applying pressure to the wick 5.
Patent GB-1423895-A (GB)
Title: Air-craft fuselage-mounted undercarriages
IPC: B64C25/34
Filed: 1973-05-23
Abstract: 1423895 Aircraft undercarriages MESSIER-HISPANO 23 May 1973 [26 May 1972] 24579/73 Heading B7G An aircraft undercarriage, in the embodiment formed by two units in tandem each retractable laterally into a fuselage about an axis X-X parallel to the aircraft longitudinal axis, comprises for each unit a main leg member 5 having a wheel-carrying arm 3 supported by a shock absorber 7 and braced by a member 9 connected to the top of the leg by a shaft 11, the main retraction pivots 16 and 17 being formed on the leg 5 and member 9 respectively. Adjacent the pivot 16 the leg 5 carries an arm which has a pivotal connection 22 with a retraction jack (not shown) the undercarriage being braced in the lowered position by a collapsible back-stay and locking mechanism 15. The undercarriage may comprise a single unit.
Patent GB-1223232-A (GB)
Title: Improvements in or relating to pile treating attachment for pile fabricating machines
Inventor: HERKENBERG WOLFGANG
IPC: D04B9/14
Filed: 1969-05-14
Abstract: 1,223,232. Knitting. W. HERKENBERG. 14 May, 1969, No. 24680/69. Headings D1C C and D1K. The pile of a fibre pile fabric is treated by a fluid as it is incorporated in the base fabric whilst producing the fabric on a machine. In example a nozzle 22 is positioned adjacent and immediately after each feeding station of a high pile knitting machine having apparatus for feeding fibres to the needles to be incorporated in the knitted fabric. After having knitted in the fibres an air tube directs air against the fabric to straighten out the fibres whereafter the fibre pile and fabric move past the nozzle 22 through which a fluid passes to affect the fibre. To this end a dye may colour the root of the fibres or be directed against the mid patton or portions of the length of the fibres. By using a wide nozzle all except the tip of the fibres may be treated. Alternatively by a valve control mechanism groups of fibres along the course may be treated interspersed with untreated groups. The treatment may include effects other than dying such as a chemical treatment or a fluid heat treatment or a combination of treatments.
Patent GB-810617-A (GB)
Title: Improvements in or relating to plain bearing assemblies
Inventor: LITTLEWOOD DENNIS
IPC: F16C9/04
Filed: 1956-08-13
Abstract: 810,617. Bearings. FORD MOTOR CO. Ltd. July 19, 1957 [Aug. 13, 1956], No. 24727/56. Class 12 (1). A connecting-rod bearing assembly comprises two half-bearings 4a, 4b having joint faces out of alignment with the joint faces between the rod 1 and cap 2. The halfbearings 4a, 4b are located by projections 5 engaging shallow drillings 6 in the housings. The projection may take the form shown in Fig. 2, or that shown in Fig. 3 and the holes 6 may be connected to a lubrication supply for the interior of the bearing. The bottom edge of the rod 1 is chamfered at 1a to facilitate assembly of half bearing 4b. In a modification, the locking means comprises a headed dowel 7, Fig. 6, fitting radially through the bearing assembly at the joint line 9 of the half-bearings 4a, 4b. The invention may also be applied to main bearings of internal combustion engines.
Patent GB-1153959-A (GB)
Title: Hysteretic Cholesteric Liquid Crystalline Composition And Recording Devices Utilising Such Compositions
IPC: G02F1/133
Filed: 1967-05-30
Abstract: 1,153,959. Temperature indicators; gas analysis; voltage testing. WESTINGHOUSE ELECTRIC CORP. May 30, 1967 [June 13, 1966], No.24855/67. Headings G1B, G1D and G1U. A temperature indicator comprises a film 11 of polyethylene terephthalate backed by a pigmented layer 12 and on which is deposited a cholestenic liquid crystalline composition 13 which reversibly changes colour at a predetermined temperature. The pigmentation in the layer 12 is arranged to be of the complementary colour to that of the light used to illuminate the indicator i.e. carbon black may be used as a pigment with white light. The composition 13 has a characteristic colour when in the cholestenic crystalline phase and when heated it changes at a predetermined temperature to the liquid phase and becomes colourless. The change back to the coloured state is accompanied by a time lag of at least three minutes so that the composition provides a semipermanent record of the temperature change. As described the composition comprises 15 to 40% by weight of at least one of the cholesteryl or cholestanyl halides and at least 30% of at least one of the cholesteryl erucyl carbonates, oleyl carbonates, erucates or oleates. The indicated temperature may be varied by varying the proportions of the constitutents of the composition. However, the indicated temperature may be raised appreciably by the addition of up to 35% by weight of one of the cholesteryl nonanoates or decanoates, and it may be depressed appreciably by the addition of up to 10% by weight of one of the fatty acids, fatty esters or fatty alcohols particularly the triglyceryl ester of a fatty acid. Specific examples are given in the Specification. The colour change of the composition 13 will also occur if it is exposed to air containing 70 to 100 p.p.m. chloroform or trichloroethylene. The composition will remain colourless for about ten minutes after removal from the atmosphere. Electric fields e.g. of 200 volts/cm also cause the change of the composition to colourless and in this case the composition does not revert to its original colour until after about three weeks.
Patent GB-661839-A (GB)
Title: Body fairings or covers for motor-vehicle wheels
IPC: B62D25/18
Filed: 1949-09-28
Abstract: 661,839. Vehicle body wheel covers. STANDARD MOTOR CO., Ltd., and YOUNGER. V. A. May 5, 1950 [Sept. 28. 1949], No. 24864/49. Class 108(i) A body cover for the wheel of an automobile comprises a panel 13 provided at its lower edge with vertically disposed slots to engage pins 27 secured to the body. and with bolts 18, 19 which can be moved outwardly to lock the panel. The lower ends of the bolts 18, 19 are pivoted to a lever 23 which can be rotated by the stem 34 to withdraw the tapered ends of the bolts 18, 19 from the edge 11 of the vehicle body.
Patent GB-1046986-A (GB)
Title: Proximity sensor
IPC: H03K17/95
Filed: 1965-06-11
Abstract: 1,046,986. Transistor oscillator and pulse circuits. HANCOCK TELECONTROL CORPORATION. June 11, 1965 [Sept. 11, 1964], No. 24873/65. Heading H3T. [Also in Division G1] An electromagnetic proximity detector comprises closely coupled coils in a pot-core energized from a unijunction relaxation oscillator Q1, Fig. 2, to produce a pulse as a metal object 2 passes the coils. The pulses are fed by emitter follower Q2 to cascade amplifier Q3, Q4 with A.G.C. provided by Q5, and then to a unijunction transistor Q6 to energize relays K1, K2 controlling a pulse counter 20 providing a count of the objects, which may be  inch dia., moving at 60 m.p.h. Circuit details.-(i) Drive oscillator, Fig. 2. Unijunction transistor Q is arranged as a freerunning oscillator with a frequency determined by R1, R2 and C1 and is coupled by L1 to a tank circuit L2, C2 resonant at a slightly higher frequency. Feedback from the tank circuit into the primary winding L1 synchronizes the oscillator at this frequency. (11) Transistor relay circuit, Fig. 3. Transistors Q3, Q4 are over-biased by diode D1 for class C operation. The average D.C. level of the pulse output signal at point 50 is applied through an R.C. integrating network R13, C8, to transistor Q5 to apply feedback from its emitter circuit to the base of Q3 to tend to maintain the average D.C. level constant. The pulse output is applied to unijunction transistor Q6 which fires and discharges C13 through relay coil K1 to energize the relay, C14 and R25 are provided to keep Q6 fired during the slow initial build-up of current in the relay coil, due to its inductance. Operation of K1 energizes K2 and discharges C16. On release of K1, K2 stays up until C16 is recharged thus providing a pulse stretching circuit.
Patent GB-782514-A (GB)
Title: Improved hypodermic needle injector
IPC: A61M5/32
Filed: 1954-08-27
Abstract: 782,514. Hypodermic syringes. PATTINSON & CO., Ltd., W. H. S. Aug. 27, 1954 [Aug. 28, 1953], No. 24910/54. Class 81 (2). A spring-operated syringe carrier is held set by a latch in the form of a bellcrank, one arm of which, on engaging the patient's body, trips the latch and causes the needle to be inserted. The syringe 11 is mounted in a holder 6, at the rear of which there is a boss 16 sliding in a guideway in a main body 17 and being normally urged downwards by a spring 29. With the syringe loaded the holder 6 is raised until its lower end can be engaged and held by an abutment 25 on a bell-crank 24, pivoted at 23. When the lower arm 26, which is bifurcated, is pressed against the skin, the bell-crank is rotated to disengage the stop 25 and allow the syringe to be driven down by the spring 29. The limit of penetration is determined by a nut 28, adjustably mounted on the rod 27, which acts as a stop by engaging the abutment 25. The spring 29 is held in position by a top cap 30, retained by a bayonet connection.
Patent GB-425361-A (GB)
Title: Preparations for eradicating weeds
IPC: A01N59/20
Filed: 1933-09-08
Abstract: Preparations for eradicating weeds comprise a calcined water-soluble copper salt in a very finely divided condition so as to be capable of atomization.  The copper salts may be used alone or in admixture with other dehydrated salts which do not react therewith to form insoluble copper compounds.  The copper and other salts used are not necessarily completely dehydrated but may retain, say, one molecule of water of crystallization provided that they are capable of conversion into impalpable powders.  An example relates to a mixture of CuCl2 : 1H2O, Na2SO4, and CuSO4 . 1H2O.  Other specified copper salts are copper fluoride and copper ammonium chloride; other salts to be used in conjunction with copper salts are iron ammonium sulphate, aluminium sulphate, potassium aluminium sulphate, ammonium aluminium sulphate, nickel chloride, nickel ammonium sulphate, manganese sulphate, magnesium silico-fluoride, potassium chromium sulphate, ammonium chromium sulphate, chromium chloride, and potassium magnesium sulphate.  Specification 385,860 is referred to. The Specification as open to inspection under Sect. 91 relates also to the use of finely powdered, calcined metal salts in general, including those specified above, without admixture of a copper salt, and contains additional examples relating (1) to FeSO4.1H2O used alone; (2) to a mixture of CuSO4.1H2O, CuCl2.1H2O, Na2SO4 and ZnSO4; and (3) to a mixture of FeSO4.1H2O, NiSO4, Cr2(SO4)3 and Na2SO4. This subject-matter does not appear in the Specification as accepted.
Patent GB-757727-A (GB)
Title: New monoazo dyestuffs of the benzthiazole series
Inventor: DAVIES ROBERT RONALD
IPC: C09B29/033
Filed: 1953-09-09
Abstract: The invention comprises dyestuffs of formula:-<FORM:0757727/IV(c)/1> where A may be substituted, Z is a direct link or -NH-CO-Ar-, Ar being an aryl radicle which may be substituted and Y is the residue of an 8 - hydroxy - quinoline, 4 - hydroxy acridine, a 4 - hydroxybenzthiazole, a hydroxy - indazole or a 1 - (51 - or 61 - indazyl) - 3 - methyl - 5 - pyrazolone or - aminopyrazole the dyestuffs having one or two sulphonic acid groups.  The invention also includes copper complexes of the above dyestuffs.  The metal-free dyestuffs are obtained by diazotizing and coupling appropriate components in an alkaline medium.  Specified diazo components are 6-methyl - 2 - (41 - aminophenyl) - benzthiazole and its sulphonated derivatives and 6-methyl - 2 - (311 - and 411 - amino - 41 - benzoylaminophenyl)- benzthiazole sulphonic acid.  Coppering is effected in known manner, the dyestuffs containing two sulphonic acid groups preferably being coppered in substance and those containing one sulphonic acid group on the fibre.  The dyestuffs dye cotton and nylon especially when an after-coppering method is used. Examples illustrate the preparation of the metal free and coppered dyestuffs and their use in dyeing cellulosic fibres in yellow or orange tints 6 - methyl - 2 - (41 - aminophenyl - 31 - sulphonic acid) - benzthiazole sulphonic acid being a diazo component addition to those listed above and additional or specified azo components are 8 - hydroxy - quinoline and its 5- and 7-sulphonic acids, 4 - hydroxybenzthiazole, 5, - 6 - and 7 - hydroxyindazole, 6 - hydroxy - indazole - 5 - carboxylic acid and hydroxyindazole sulphonic acid. In the Provisional Specification z is also -NH-X-Arwhere X is CO or a cyanuric linking group, the diazo components are given as 5- and not 6-methyl derivatives and the coupling components may be any component which is capable itself of forming complex metal compounds. Specifications 697,977 [Group IV(b)], 744,212 and 753,573 [Group IV(b)] are referred to.
Patent GB-655542-A (GB)
Title: System for receiving messages transmitted electrically
IPC: H04B1/10
Filed: 1946-08-21
Abstract: 655,542. Telegraphy. STAATSBEDRIJF DER POSTERIJEN TELEGRAFIE EN TELEFONIE. Aug. 21, 1946, No. 24970. Convention date, June 29, 1944. [Class 40 (iii)] A telegraph or like receiver operating to a Baudot type code and comprising a common input unit which is connected in turn to a plurality of receiving units which are adjusted in accordance with the condition of the receiving unit is characterized in that the adjustment made depends upon the received voltage (or current), integrated over the duration of a signal element. Received signals of the tone, no tone kind are applied to a full-wave rectifier 2 and at a trigger pair 4, 5 are converted into positive and negative D.C. impulses. A received signal element thus applies a correponding voltage to a condenser 11 (or 12) via distributer contacts 9 (or 10), which close alternately for the duration of a signal element. While e.g. condenser 11 is being charged, the other condenser 12 is discharged over contacts 14 to operate a relay tongue 18 to its positive or negative contact. The polarity of the tongue 18, or of a similar tongue 17 is then applied in turn to code magnets 20 via distributer contacts 19. Instead of the condenser arrangement an inductance may be employed as shown at the foot of the Figure. The integration during the whole of a signal element period is stated to minimize the effect of disturbances, since the relays 20 are arranged to operate if only 10 per cent of the normal condenser change has been acquired during a particular element period.
Patent GB-480455-A (GB)
Title: Improvements in or relating to means for delaying the response of electro-magnetic switches
IPC: H01H50/88
Filed: 1936-09-14
Abstract: 480,455. Electromagnetic switches; master control of D.C. motors. WEST & CO., Ltd., A., and BREEZE, V. Sept. 14, 1936, No. 25034. [Classes 38 (iii) and 38 (v)] The armature 15 of an electromagnetic switch is, at the non-attracted position, subject to control by an electromagnetic control device which, without positively impeding the movement of the armature towards its attracted position, determines, by the degree of energization of its winding 8, whether the armature 15 occupies an intermediate or an extreme non-attracted position, at which it respectively can or cannot be moved to the attracted position by its operating winding 5a. In the construction shown in Fig. 2, when the control winding 8 is energized, its armature 17 is attracted and an arm 19 is moved to the right to permit the armature 15, which is pivoted at 16, to move to'the extreme position shown in broken lines. When the winding 8 is de-energized, its armature 17 drops, and the arm 19 moves the armature 15 to the intermediate position in which it can be attracted by the winding 5a. In the arrangement shown in Fig. 1, three of the switches are provided, having closing windings 5a ... 7a, contacts 5 ... 7 adapted to short-circuit sections 2 ... 4 of a starting resistance, and control windings 8 ... 10. On closing a switch 11, a winding 12a is energized to close a main contactor 12 which connects the motor 1 to the line through the resistances 2 ... 4. The windings 8 ... 10 are simultaneously energized, so that the armatures of the electromagnetic switches are in their extreme '' off " positions. The contact 5 has auxiliary contacts 5b, which close when the contact 5 is in the extreme " off " position and energize a winding 14a which closes a discharge circuit for the winding 8 at 14, a maintaining circuit for the winding 14a at 14b, and energizing circuits for the windings 5a ... 7a at 14c. As soon as the winding 8 is deenergized, contact 5 closes to short-circuit the resistance section 2 and the winding 9 ; the latter then discharges and after an interval permits the contacts 6 to close to short-circuit the resistance section 3 and winding 10. As soon as the current in the winding 10 has died down, the contact 7 closes to short-circuit the resistance section 4.
Patent GB-1334277-A (GB)
Title: Reduction of dustiness and abrading of soft porous low density hydrated calcium silicate products
IPC: C04B41/62
Filed: 1971-04-19
Abstract: 1334277 Coated calcium silicate body JOHNS-MANVILLE CORP 19 April 1971 [31 March 1970] 25210/71 Heading B2E A soft and porous low density hydrated calcium silicate body is treated to reduce dustiness and increase durability by applying to the surface an emulsion of 20-30% by weight of wax solids in water, the wax having a melting point of at least 170F. applied in amounts of 0.1-0.5 grams per square foot of surface area. Suitable waxes are montan wax, vegetable waxes or synthetic wax produced by the hydrogenation of castor oil. The emulsions may be applied by spraying, brushing, or dipping. The body may be a half-section of cylindrical pipe insulation. The body may contain reinforcement such as asbestos fibres.
Patent GB-773473-A (GB)
Title: Improved electrical connector
IPC: H01R24/12
Filed: 1955-09-02
Abstract: 773,473. Two-part couplings. GENERAL MOTORS CORPORATION. Sept. 2, 1955 (Sept. 20, 1954], No. 25267/55. Class 38 (1).  A connector body 10 of resilient material has rectangular-section passages 20, 21, 22 formed with shoulders 27, 28, 29, respectively, and receiving terminals 25 made out of blanks (Fig. 10, not shown). The blanks are fashioned to provide wings 37, 38 for clamping the conductors and insulation, respectively, a lug 41 to restrict the insertion of the terminal in the body 10, projections 85 for engaging the wall of the body 10, and arcuate parts 45,46 with belled mouths 47, 48. The terminals with attached leads are inserted in their respective passages in the body 10 until arrested by lugs 41, in which position locking feet 51 prevent withdrawal, and arcuate parts 45, 46 define pin-receiving sockets registering with pin-entry holes 11 in the body. The terminals can be withdrawn by forcing apart flanges 91 in the body and removing an end wall 90 to give access to the locking feet 51. The Specification also describes a form in which a body having a simple passage and terminal is slotted to give access to the contact (Figs. 12-15, not shown).
Patent GB-374342-A (GB)
Title: Seats made of resilient material
IPC: A47C3/023
Filed: 1931-09-09
Abstract: 374,342. Chairs. DEUTSCHE STAHLMÍBEL GES., 47, Teltowerstrasse, Berlin. Sept. 9, 1931, No. 25207. Convention date, Sept. 9, 1930. [Class 52 (ii).] In a chair constructed of resilient material such as a bent metal tube, the arm rests a are bent downwards at the rear and continued into horizontal seat supports b which are bent downwards at the front to form vertical legs g which are then bent horizontally and backwards to form the base h. In the construction shown in Fig. 2, the arm rests are bent downwards at the front and are continued into a seat supporting member d. The back rest supporting frame c consists of a closed bent frame member, the horizontal members e, f of which are offset rearwardly.