baber/WOPTO huggingface dataset:
Patent GB-1482521-A (GB)
Title: Switching of tracked vehicles
IPC: E01B25/00
Filed: 1974-08-01
Abstract: 1482521 Track guidance system HAWKER SIDDELEY DYNAMICS Ltd 1 Aug 1974 [1 Aug 1973] 36565/73 Heading B7L [Also in Division El] A system for switching track guided vehicles from a mainline A to a branch line C comprises vehicles equipped with two sets of switch wheels 4, that run along switch rails 7, 8, each of which sets is lockable in one of two positions, indicated by solid and dotted lines in Fig. 2. The vehicle is also fitted with guide wheels 2 which engage walls 3 at the edges of the track. In a modification, Fig. 4, the guide wheels 2 engage the outside faces of combined guide and switch rails, and only one of the switch wheels 4 is positioned to engage a rail at a junction where it is locally thickened. In a variation of this modification, Fig. 5 (not shown), the upper switch wheel engages a switch rail which is heightened as well as thickened. In a further variation, Fig. 7 (not shown), the upper switch wheel is laterally displaced and engages side walls at the edge of the track.
Patent GB-1380794-A (GB)
Title: Glutaric acid imides and processes for their preparation
IPC: C07D211/88
Filed: 1972-08-07
Abstract: 1380794 Glutaric acid imides MERCK PATENT GmbH 7 Aug 1972 [21 Aug 1971] 36713/72 Heading C2C The invention comprises novel glutaric acid imides of Formula I: in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, which may be the same or different, are H, an alkyl group with up to 6 C atoms or an alkoxy group with up to 6 C atoms; R<SP>4</SP>, R<SP>5</SP> and R<SP>6</SP>, which may be the same or different, are H, halogen, OH, etherified or esterified OH, NO 2 , COOH, COOR<SP>8</SP>, CF 3 , an alkyl, alkenyl or alkinyl group with, in each case, up to 4 C atoms, an amino group which may optionally be mono- or di-alkylated and has up to 8 C atoms, a tetramethylene-, pentamethylene- or hexamethylene-amino group, or an acyl-amino group with up to 7 C atoms, or, when R<SP>1</SP> is H or CH 3  and R<SP>2</SP>, R<SP>3</SP>, R<SP>6</SP>, and R<SP>7</SP> are each H, R<SP>4</SP> and R<SP>5</SP> together form a group; R<SP>7</SP> is OH, or esterified or etherified OH, or additionally H, when R<SP>1</SP>=CH 3  and R<SP>2</SP>= R<SP>3</SP>=R<SP>4</SP>=R<SP>5</SP>=R<SP>6</SP>=H, or when R<SP>1</SP>=CH 3 , R<SP>4</SP>= NO 2 , R<SP>5</SP>=OCH 3  and R<SP>2</SP>=R<SP>3</SP>=R<SP>6</SP>=H, or when R<SP>1</SP>=H or CH 3 , and R<SP>2</SP>=R<SP>3</SP>=R<SP>6</SP>=H and R<SP>4</SP> and R<SP>5</SP> together form a -CH = CH-CH = CH- group; R<SP>8</SP> is an alkyl group with up to 6 C atoms, and their salts and quaternary ammonium compounds. The imides of Formula I are prepared by processes comprising (i) reacting a compound of Formula II: in which X<SP>1</SP> and X<SP>2</SP> (same or different) are each OH, halogen, NH 2 , OR<SP>8</SP> or OCOR<SP>8</SP> or together form -O-, with ammonia or an ammonia-  donating agent and/or an agent which splits off HX<SP>1</SP> or HX<SP>2</SP>, (ii) reacting a compound of Formula III: in which Y is an equivalent of a metal atom or is MgZ and Z is Cl, Br or I, with a compound of Formula IV: in which X<SP>3</SP> and X<SP>4</SP> (same or different) are halogen or OR<SP>8</SP>, (iii) reacting a compound of Formula V: in which A is Z or HSO 4 , with an aqueous medium in order to replace the diazonium group by an OH group, (iv) oxidizing a compound of Formula VI: or (v) cyclizing a compound of Formula VII: Imides of Formula I are also obtained by reducing corresponding compounds which in place of hydrogen atoms contain unsaturated carbon-carbon bonds and/or one or more radicals capable of being reduced and/or replaced by hydrogen atoms (e.g. a halogen atom, carbonyl group or a benzyl group). The examples describe the preparation of many specific compounds of Formula I which are intermediates in tetracycline syntheses.
Patent GB-1512796-A (GB)
Title: Image forming process
IPC: G03G5/00
Filed: 1975-09-05
Abstract: 1512796 Photographic processes INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1975 [13 Dec 1974] 36724/75 Heading G2C A photographic process for producing crystalline images comprises imagewise exposing a material comprising a support and a layer containing either  an organic, non-polymeric, amorphous photoconductor with a glass transition temperature below 200‹C or trinitrofluorenone (TNF) and developing either by (i) treating with a liquid in which the photo-conductor or TNF is only slightly soluble or (ii) incorporating such a liquid in the layer containing a binder and heating, to convert either the exposed or unexposed areas of the layer to the crystalline form. Alternatively, the support may be electrically conductive and the material may be uniformly charged preferably before exposure. Specified photo-conductors are 1-phenyl-3(p-diethylamino styryl)-5-(p-diethylaminophenyl)pyrazoline; and 1-phenyl-3p(piperidino)-phenyl-5-(3-methyl-2- thienyl)-2-pyrazoline.
Patent GB-918019-A (GB)
Title: Improved method of and apparatus for co-ordinating the operation of various sectionsof data processing systems
IPC: C08G77/06
Filed: 1960-10-26
Abstract: 918,019. Synchronizing separately driven units. COMPAGNIE DES MACHINES BULL. Oct. 20, 1960 [Nov. 5, 1959; March 15, 1960], No. 36814/60. Class 40 (3). [Also in Group XIX] Separate units of a record card machine, each driven by a synchronous motor, are synchronized by means controlled by clock pulses from a central unit. The synchronizing device, Fig. 6, includes a cam contact on the driven shaft of each unit. The shaft has twenty possible phase positions within the cycle and in the correct position, Fig. 7, the cam contact CS closes at the same instant as the clock pulse i1 arrives from the clock 101. In this condition the pulse i1 passes through contacts CS to relay E08 and the contact E08a thereof closes to pick relays E05, E07. The latter holds through contacts E07a and the former applies line voltage through transferred contacts E05a to the motor controller relay ECM to maintain energization of the motor. Relay ECM is energized in the normal position of contacts E05a by a second clock signal i2 which, as shown in Fig. 7, is interrupted for a part of a cycle once in five cycles. During correctly synchronized operation the period of interruption of the clock signal i2 is bridged by operation of relay E05 by coincidence between clock pulses it and closure of contacts CS. Out-ofstep operation is shown in Fig. 8. The period of operation of clock signal i2 de-energizes the motor and causes it to slip a pole pitch. This process is repeated in successive groups of five cycles until the cam contacts CS synchronize with the clock pulses i1. In a modification the de-energization of the motor control relay ECM is controlled through a further set of cam contacts on the driven shaft.
Patent GB-806532-A (GB)
Title: Process for drawing filaments
Inventor: RISELEY ERIC IVAN
IPC: D02J1/22
Filed: 1955-12-23
Abstract: Synthetic linear polymer filaments are drawn while in contact with a heated snubbing pin having a diameter of at least 3 inches. The surface of the pin may be nitrided or of sandblasted chrome. Polyethylene terephthalate filaments may be drawn whilst in contact with a snubbing pin, the surface temperature of which is above 75 DEG but below 120 DEG  C.  Heat may be generated by the passage of the filaments over the pin, no extra heat being supplied to the pin.  The filaments may be heated before reaching or after leaving the pin, e.g. by passage over a hot plate.  More than one snubbing pin may be used in series, each having a diameter of at least 3 inches, the pins being closely spaced and preferably in a line, so that the filaments pass in a sinuous path over each pin with a contact angle of about 180 degrees.  The temperature of additional pins is kept at least 5 DEG  C. lower than that of the pin on which drawing takes place.  In the methods which utilize one snubbing pin the filaments may be preheated by immersing the pin in a liquid, the temperature of which is at or near that of the snubbing surface.  The liquid should be non-corrosive and a non-solvent for the filaments, e.g. water.  To minimize heat losses from the large heated snubbing surface it may be made narrow or lagged on those parts not in contact with the filaments. Examples are given in which polyethylene terephthalate filaments from spinnerettes and yarns from bobbins are drawn in contact with snubbing pins of large diameter.  Specification 543,466, [Group IV], is referred to.
Patent GB-884316-A (GB)
Title: Apparatus for measuring the rate of flow according to the partial current measuring method
IPC: G01F5/00
Filed: 1959-10-30
Abstract: 884,316. Flow meters. NEUHAUS, G. Oct. 30, 1959 [Nov. 18, 1958], No. 37000/59. Class 69 (1). A flow meter for measuring the quantity of fluid flowing through a main pipe 1 by measuring a partial flow of that fluid comprises a main throttle 3 in the main pipe 1 and a flow divider provided with two chambers 8, 9 connected to the main pipe, one on each side of the main throttle by throttle-equipped branch lines 4, 5 and separated by a membrane 10 having means for controlling a valve 13, 14 connected with a gas meter 19, the chamber 8 being connected with the main pipe 1 upstream of the main throttle 3 and the chamber 9 having an adjustable outlet port 31 which port is closed when the valve 13, 14 opens and conversely. The outlet port 31 has a conical portion 32 which merges into a screw-threaded bore 33 of increased diameter. A transverse bore branches off from the bore 33 and can be closed to a greater or lesser extent by a bolt 34. This arrangement provided a throttle for the outlet port 31 which can be precision adjusted by hand to neutralize the suction normally obtaining at the valve 13, 14. The line 18 between the valve 13, 14 and the gas meter 19 is tapped and connected to a second valve 46, 47 a throttle 20 being provided between this valve and the tapping. The pressure built up by the throttle 20 causes the valve 46, 47 to close the outlet port 31.
Patent GB-1433419-A (GB)
Title: Method of treating phosphoric acid esters for storage in a non- polluting manner
IPC: G21F9/00
Filed: 1973-08-03
Abstract: 1433419 Treatment of radioactive waste GES FUER KERNFORSCHUNG mbH 3 Aug 1973 [16 June 1973] 37055/73 Heading G6R To facilitate storage, phosphoric acid -ester contaminated with radioactive material is formed into a non-volatile mass with polyvinyl chloride. Tributyl phosphate which has been used in processing nuclear fuel may be mixed with polyvinyl chloride chips and kept at room temperature until a solid mass is formed. Alternatively, mixing may take place at 100- 110‹ C. and the mixture solidified by cooling. Ion exchange material contaminated with radionuclides may be added to the mixture; such materials referred to are polystyrene resins containing sulphonic acid or trimethylammonium groups.
Patent GB-855371-A (GB)
Title: An aircraft control system
Inventor: ERNST GUNTHER
IPC: B64C29/00
Filed: 1957-11-28
Abstract: 855,371. Control systems. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 28, 1957 [Dec. 4, 1956], No. 37154/57. Class 40 (1). [Also in Groups XXXIII and XXXV] An aircraft control system comprises a pilot's control, a gyroscope, and a rate gyroscope, producing variable electrical signals fed as inputs to an amplifier, the resultant output of which energizes one phase of a two-phase motor, the other phase being energized from a reference source, a distributer valve operated by the motor and connected to an hydraulic jack acting on the controlled member of the aircraft, and means operated by movement of the controlled member to develop a feed-back signal applied as an input to the amplifier. In the Figure, coils 2, 4 and 6 of a magnetic amplifier are connected to the diagonals of Wheatstone bridges 1, 3 and 5, potentiometers la, 3a and 5a of which are connected to a pilot's control member, an attitude gyroscope, and a rate gyroscope respectively. Other coils 23, 24 are energized by feed-back signals and power for the amplifier is supplied by a constantly energized coil 29. The output coil 7 energizes one phase of a bi-phase motor 8, the other phase being constantly energized over leads 9. The motor is driven at a speed and in a direction corresponding to the magnitude and phase of the output from coil 7, and operates through gearing 10 and a rack 11, the slider 12 of a valve controlling an hydraulic jack 15 connected by linkage 27, 17 to the member being controlled, e.g. a reaction propulsion jetdeflector device. The linkage 27 drives a potentiometer 21a in a Wheatstone bridge 21, deriving a position feed-back signal fed to coil 23. The linkage also drives a tachometer generator 22 providing a rate feed-back signal fed to coil 24. Since the rate of movement of the jack is proportional to the displacement of the valve 12, the rate feed-back signal may be derived from a potentiometer in a Wheatstone bridge 25 connected to the rack 11, as shown in broken lines. The magnetic amplifier may be replaced by an electronic amplifier, and the various potentiometers may be replaced by selsyns, microsyns or resolvers.
Patent GB-345204-A (GB)
Title: Improvements in and relating to the production of condensation products from ortho-chlor-phenol
IPC: C07C65/40
Filed: 1929-12-04
Abstract: Benzoylbenzoic acid derivatives.-The product obtained by condensing o-chlorphenol with phthalic anhydride in presence of an acid condensing agent, is nitrated in the group containing the -Cl and -OH-substituents by treatment with the theoretical quantity of nitric acid for the introduction of one nitro group.  The product is reduced by treatment with reducing agents such as iron with acid or a ferrous salt.  According to examples, chlorhydroxybenzoylbenzoic acid is obtained by condensing phthalic anhydride with o-chlorphenol, and is nitrated with a mixture of nitric and sulphuric acids, the product being subsequently reduced with ferrous hydroxide. Amino-anthraquinone derivatives.-The reduction products obtained as above are ring-closed, for example with sulphuric acid.
Patent GB-785313-A (GB)
Title: Glazing bar assemblies
Inventor: FOX-WILLIAMS JACK
IPC: E04D3/08
Filed: 1954-12-23
Abstract: 785,313. Glazing roofs &c. WILLIAMS & WILLIAMS. Ltd. Dec. 21, 1955 [Dec. 23, 1954], No. 37296/54. Class 20(3) In a glazing bar assembly comprising a girder member having a web 1 and a flange 2 with an abutment 3 to support the edge of a sheet 7 of glass or other material and a rib or shoulder 4 beneath which is retained the lower edge portion 10 of a resilient cover strip engaged between the web 1 and abutment 3 and having an upper part 6 to engage the upper face of the glass sheet 7, the face of the web 1 and/or the part 8 of the cover strip which bears against such face during assembly is formed with one or more projections 13 or 11 so as to provide a lmited area of contact between the cover strip and the web during asembly. As shown in Fig. 3, the cover strip is formed with a number of pips or projections 11 in the downwardly extending strip 8 and the flange 10 has corrugations or depressions 12 which limit the area of contact with the shoulder 4 during assembly. As showin in Fig. 4, the web 1 is formed with a bead or rib 13 and preferably the cover strip has a corresponding grooove 14. Specification 695,139 is referred to in the Provisional Specification. Reference has been directed by the Comptroller to Specifications 695,139 and 724,390.
Patent GB-526945-A (GB)
Title: Improvements in or relating to shock-absorbing or fluid-pressure-relieving apparatus
IPC: F16F9/348
Filed: 1938-12-22
Abstract: 526,945. Vibration-dampers; reciprocating pumps; valves. CLOUDSLEY, J. L. Dec. 22, 1938, Nos. 37320/38 and 7270/39. [Class 108 (iii)] [Also in Group XXIX] In a shock-absorber of the kind in which a piston in a cylinder carries a valve which is raised from its seating by excess fluid pressure, the valve bears against a member sufficiently to cause the seating on the member to " follow-up " the valve as it is moved by the fluid pressure, such " follow-up " movement being dependent on the resistance offered to the flow of fluid through a restricted passage or orifice. In the recuperative stroke of the piston 2, Fig. 1 (37320/38), a valve 10 formed of superposed laminae is lifted from its seat 3 to aliow fluid to flow through the piston. In the shock-absorbing stroke, the liquid is forced through a helical passage between a member 6 and truncated threads on a sliding plug 13. Excessive pressure forces the valve from its seating 7. The member 6 slides in a cylinder 4 to form a dashpot within the main dashpot and may have a central bore provided with a non-return valve, or a non-return valve may be provided in an inlet aperture at the inner end of the cylinder 4. A valve member 4, Fig. 1 (7270/39), at the centre of laminae 3 slides in a plate 5 spaced from the laminae and is secured to a flexible steel diaphragm 6 bearing against the plate. A dome-shaped member 7 formed with an aperture 8 is held in fluid-tight contact with the diaphragm by a spring 9 and forms with the diaphragm and valve 4 an inner dashpot. Upon a sudden movement of the piston to the right, the plates 3 are lifted from their seating 13. With slower movement, liquid passes through the aperture 8 and forces the diaphragm and valve 4 to follow up the leftward movement of the plates until further movement is arrested by a flange on the valve seating in a recess 14 in the plate 5. "Follow-up devices may be provided on both sides of the plates 3, the valve 4 having closure members on opposite sides of the plates 5, which are held loosely at their outer edges. The shock-absorber pistons above described may be used as pistons in fluid pumps.
Patent GB-1476486-A (GB)
Title: Method of producing metallic copper
IPC: C22B15/00
Filed: 1974-08-27
Abstract: 1476486 Producing copper L D L P PORTH L E D LEON R DELGADO and T PEREZ 27 Aug 1974 [25 Sept 1973] 37403/74 Heading C7D Cu is produced by treating an ammoniacal copper sulphate or carbonate solution e.g. Cu(NH 3 ) 4 SO 4  or Cu(NH 3 ) 4 -CO 3  with SO 2  to form a precipitate of Cu(NH 4 )SO 3  crystals, preferably drying the crystals to less than 5% moisture at a temperature not exceeding 120C, suspending such crystals in an acidic solution containing initially 20 to 75 g/l H 2 SO 4 , the suspension containing 40 to 70% of such crystals, and heating the suspension at 140 to 170C at a pressure of 150 to 220 psi until all the sulphite has been converted to metallic Cu and separating the Cu from the residual solution. Preferably the residual solution from a previous decomposition of Cu(NH 4 )SO 3  to Cu, and saturated with (NH 4 ) 2 SO 4 , is used as the solution in which a further quantity of sulphite crystals is suspended and heated.
Patent GB-1353263-A (GB)
Title: Gantry crane reeving system
IPC: B66C11/16
Filed: 1972-08-10
Abstract: 1353263 Orientating suspended loads FRUEHAUF CORP 10 Aug 1972 [3 Sept 1971] 37438/72 Heading B8B A gantry crane comprises a trolley system 11 with separable sections 23, 35 (to reduce pendulation) suspending a lifting spreader headblock 25. The rope system shown includes four suspension ropes 13a, 13b and 15a, 15b which lift the ends of the spreader 35 through pairs of sheaves 27 and 37 respectively and two sway arresting ropes 17a, 17b which engages the spreader 35 round sheaves 45, 47 on opposite sides thereof. The pairs of ropes 13a, 13b; 15a, 15b and 17a, 17b can be considered as single ropes being respectively connected at one end to actuators 31, 41, 59 attached at the end of the gantry. At their other ends the ropes are wound simultaneously by drums 19, 49, 43 to raise or lower the spreader 35. Operation of actuator 59 serves to adjust the list of the spreader 35 by tilting it about the Z-Z<SP>1</SP> axis shown. Actuators 31, 41 jointly operated in the same direction adjust the trim of the spreader 35 by tilting it about the X-X<SP>1</SP> axis, while joint operation of the actuators 31, 41 in opposite directions adjusts the skew by rotation of the spreader about the Y-Y<SP>1</SP> axis.
Patent GB-1065158-A (GB)
Title: Improvements in or relating to electrical apparatus
Inventor: SCOTT IAN PETER
IPC: H05K7/14
Filed: 1964-09-14
Abstract: 1,065,158. Rack-mounted electrical equipmerit. GENERAL ELECTRIC CO. Ltd. Sept. 13, 1965 [Sept. 14, 1964], No. 37474/64. Heading H1R. In electrical apparatus, e.g. telephone exchange apparatus, of the kind in which component-bearing panels are slidably mounted on a shelf in a rack, such as is described and claimed in Specification 1,065,157, each panel comprises upper and lower channel section members 22, Fig. 6, secured between a front member 20, which carries a handle 26 and test sockets 24, and a rear member 21 which carries a printed wiring plug 27 between shrouds 29. Members 22 comprise inwardly directed flanges which overlie the channel portions, and are joined to front and rear members 20, 21 by means of tapped bars 39 and bolts 40. When printed circuit boards are to be mounted on a panel, an insulating insert (30, Fig. 7, not shown), e.g. of nylon, is slid into each channel member, each insert (30) comprising slots (32, 33) to enable the boards to be mounted in the plane of the panel or normal thereto, and an integral cable cleat (35). Other components are mounted on chassis which are attached to the channel members by means of lugs (37, Fig. 8, not shown) or brackets (38, Fig. 9, not shown).