baber/WOPTO huggingface dataset:
Patent GB-1231114-A (GB)
IPC: F16B19/10
Filed: 1969-02-13
Abstract: 1,231,114. Sub-press mechanisms. MINSTER MACHINE CO. 13 Feb., 1969 [25 March, 1968], No. 7779/69. Heading B3W. [Also in Division E2] An assembly pin 40 for detachably interconnecting a pair of members having holes therein for receiving the assembly pin comprises a metal strip formed substantially to U-shape closed at one end and open at the other end where it is bulged outwardly at 50 to form an enlarged portion, the legs being substantially straight from the closed end of the pin to the beginning of the enlarged portion, and the legs being convex in cross-section on their exterior surface, and a cylindrical member 52 of resilient material disposed between the legs 48 of the U and biasing the latter away from each other. As shown, the pin is used to detachably secure a die plate 22 to posts 36 or to a block 44, Fig. 2 (not shown), which rest on a wear plate 38 of a fixture 10 forming part of a press, the plate 22 being located on the fixture by dowel pins 20.
Patent GB-1232015-A (GB)
IPC: C07C5/08
Filed: 1967-07-27
Abstract: 1,232,015. Selective hydrogenation. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 July, 1968 [27 July, 1967], No. 34620/67. Heading C5E. The selective homogeneous hydrogenation of a hydrocarbon substrate containing two or more sites of unsaturation (see below) is effected in the presence of a solution comprising (1) a catalyst comprising a soluble compound of Rh, Pd, Os, Ir or Pt, and (2) an organic polar hydroxylic solvent. The hydrocarbon substrate may have two " sites of unsaturation " in the form of a single acetylenic bond, two olefinic bonds in a single molecule, or two different olefinically unsaturated molecules. The following types of selective hydrogenation may be effected; (a) terminal acetylenic in preference to terminal olefinic, e.g. of hexyne-1 in preference to octene-1; (b) terminal olefinic in preference to internal, cyclic or non-cyclic olefinic; e.g. pentene-1 in preference to pentene-2; octene-1 in preference to cyclooctadiene, and of vinyl cyclohexene to ethyl cyclohexene; (c) conjugated dienes in preference to straight chain and cyclic olefins, e.g. 1,3-hexadiene in preference to heptene-1; and (d) one of two double bonds in a conjugated diene, e.g. cyclopentadiene to cyclopentene. Suitable catalysts include tris-(triphenylphosphine)-RhCl, cis, bis-(tributylphosphine)-Pd (or Pt) Cl 2 , bis-(triphenylphosphine) (ethylene)- RhCl, 1,2-bis-(diphenylphosphine)-ethane carbonyl iridium bromide, and tris-(p-methoxyphenyl - dichlorophosphine) - IrCl 3 . Suitable hydroxylic solvents include methanol, ethanol, phenol and tert.-butylcatechol.
Patent GB-1232533-A (GB)
IPC: G05D3/20
Filed: 1969-06-12
Abstract: 1,232,533. Positioning systems. INDUCTOSYN Ltd. 12 June, 1969 [17 June, 1968], No. 29805/69. Heading G4H. Movable members 26, 27 (Fig. 3) of transformers 22, 23 are positioned under the control of a digital signal n held in register 7, by generating signals of a fundamental frequency F with amplitude proportional to sine n and cos n these signals being applied to filters 15, 18; 16, 17 which pass fundamental frequency signals and an odd harmonic of them to coarse input windings 25a, 25b, and fine input windings 24a, 24b respectively of the transformers. The windings of the transformers are spaced in accordance with the frequencies of the signals fed to them. The error signals from the secondary windings are sequentially fed, first the coarse error signal, then the fine error signal (via a Zener diode gate) to a comparator 28 controlling a motor 32 which drives the members 26, 27 until first the coarse error signal is reduced to a threshold level and then the fine error signal is reduced to zero. In operation the digital control signal n in register 7 is compared with the count in counter 2 of capacity N incremented by clock pulses, the signal at equality from a detector 5 opening a gate 11 and after a delay of N/2 closing the gate. The stored signal is converted to -n-1 and compared with the count, the equality signal from detector 6, delayed by one bit, opening gate 12 which is closed after a delay of N/2. The outputs of gates 11 and 12 are summed and applied to a scaling device 21 together with a signal from gate 14, enabled by the coincidence signal from detector 6 delayed by N/4 + 1 and closed by the signal from detector 5 delayed by N/4. The resulting signals (Figs. 4e and 4h, not shown) are fed to the filters 15, 18; 16, 17 to control the coarse and fine position of the movable member.
Patent GB-1234303-A (GB)
IPC: G05B19/408
Filed: 1968-07-26
Abstract: 1,234,303. Programmed control of machine tools. GENERAL ELECTRIC CO. July 26, 1968 [Aug. 29, 1968], No. 35890/68. Heading G3N. An automatic machine control system provides a pattern of control which is repeated at a plurality of separate unique positions offset with relation to one another in response to command data recorded on a common record medium and comprising a single set of commands for the pattern to be repeated together with commands representing each of the offset positions. As shown, a closed loop of perforated paper tape 61 bearing command instructions is read by a reader 12 and, after deocoding and recognition in circuits 14, the positional commands are fed to a digital machine tool control 16 moving work-table members 21, 22 by servos 18, 19 controlled through cascaded operational amplifiers 23, 24, 23<SP>1</SP>, 24<SP>1</SP>, having velocity and positional feedback. The circuits 14 also feeds pattern control instructions to a sub-system, comprising a register 41, for storing the total number of desired repeat offset patterns to be performed on a given member, a counter 42 counting the total of actually completed repeats, a register 43 for storing recognition number for each offset position at which the repeat pattern is to be performed. The contents of counter 42 is compared with that of register 43 by a comparator 44 and, at correspondence, a signal is fed to the circuit 14 to transmit the offset position commands from the reader 12 to registers 47, 48. The contents of the registers are then fed into the digital machine tool control through X and Y axis command circuits 26, 27 which directly control the positioning servos. A comparator 55 receives the output from the register 41 and the counter 42 and at correspondence a signal is fed to circuit 41 to indicate that the desired number of offset repeats has been completed. During operation, the loop 61 of tape is recirculated through the reader 12 in synchronism with the operation of the automatic machine tool, a repetitive cycle of operations, such as drilling a pattern of holes, being performed at each offset position.
Patent GB-1238519-A (GB)
IPC: F16C27/06
Filed: 1968-10-18
Abstract: 1,238,519. Bearings. VSESOJUZNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO - ISSLEDOVATELSKY INSTITUT ZHELEZNODOROZHNOGO TRANSPORTA. 18 Oct., 1968, No. 49531/68. Heading F2A. A shaft 1 is journalled for rotation in a support member 2 by means of rolling bearings 3 which are resiliently mounted in the support member by a semi-cylindrical elastic gasket 4 which envelops part of the outer races of the bearings. To provide even distribution of load, the gasket 4 diminishes in thickness towards its edges and increases in thickness in longitudinal section, the maximum thickness being at the end nearest the butt of the axle journal. Elastic spacer rings 8 and 9 are provided between the races of the two bearings and further elastic rings 15 may be provided at either end of the outer races. A labyrinth seal 13 is provided at one end of the bearing assembly, and an inspection cover 14 is secured at the other end. The rolling bearings are secured to the shaft by bolts 16.
Patent GB-1251206-A (GB)
IPC: B60Q1/068
Filed: 1968-04-05
Abstract: 1,251,206. Vehicle lamps. JOSEPH LUCAS (INDUSTRIES) Ltd. 28 March, 1969 [5 April, 1968], No. 16514/68. Heading F4R. In an adjustable vehicle headlamp assembly a headlamp 14 is seated in a support 11 on a vehicle body and adjusted by a screw 17 and an over-centre linkage having two stable positions spaced apart from one another in the direction in which the lamp is rocked relative to the support. With the over-centre linkage in one or other stable position the screw 17 turning in a nut 16 fixed to the support provides a fine adjustment of the headlamp in a vertical plane via the linkage. The over-centre linkage itself provides a coarse two-position adjustment, and comprises a catch plate 28 held by a U-shaped spring, fixed to the lamp rim, which spring passes through a hole 29 in the catch plate in such a way that the lower edge 31 of the hole is pivoted in a recess 26 formed by a bend in the lower limb of the spring, and the upper edge 32 of the hole 29 rides along the upper limb 24 of the spring and may slip over a rib 27 in the spring to snap into a stable position on either side of the rib. The catch plate 28 is held at its end opposite the pivot in the neck 18 of the screw 17 and its movement is limited by a stop 33 and a flange at the end of the spring limb 24. Adjustment of the lamp in a horizontal plane is carried out by means of a simple captive nut and screw arrangement 13a, not shown, at another part of the rim of the lamp.
Patent GB-1252933-A (GB)
IPC: B01D11/04
Filed: 1968-08-30
Abstract: 1,252,933. Liquid/liquid contact. THORIUM Ltd. 18 Aug., 1969 [30 Aug., 1968], No. 41496/68. Heading B1F. Recycling of separated phases in a settling chamber 10B Fig. 2 back to the mixing chamber 10A of a mixer/settler unit arranged in a series of such units is effected for the light phase by adjustable valve 31 via channel (17) and for. the heavy phase by adjustable valve 25 via tube 24. Valve 31, Fig. 5, comprises a tube 31 with a vertically adjustable sleeve 33. Valve 25, Fig. 6, comprises a vertically adjustable plug 29 inside body 26.. The recirculation reduces the formation of "dead areas" in the settler.
Patent GB-1257236-A (GB)
IPC: C07C17/26
Filed: 1969-10-10
Abstract: 1,257,236. α,#- Bis-(trifluoromethyl) stilbenes. E.I. DU PONT DE NEMOURS & CO. 10 Oct., 1969 [10 Oct., 1968], No. 50002/69. Heading C2C. Novel stilbenes of the Formula (I) wherein each of the groups X, which may be the same or different, is H, OR, wherein R is H, alkyl, hydroxyalkyl, or a dialkyl-aminoalkyl group (in which the dialkylamino group may form a heterocyclic ring); or a group R<SP>11</SP>COO- where R<SP>11</SP> is H, alkyl, cycloalkyl, cycloalkenyl, cycloalkoxy, hydroxyalkyl, dialkylaminoalkyl or aryl, the group X having not more than 12 carbon atoms, may be obtained by (a) reacting perfluorobut-2-ene with a 4-R<SP>1</SP>-substituted phenyl lithium, or (b) de-etherifying a stilbene of Formula (I) in one or both groups are alkoxy groups, or (c) acylafcing a compound of Formula (I) in which one or both X groups are OH, or (d) etherifying a compound (I) in which one or both X groups are OH, or (e) hydrolysing a stilbene (I) in which one or both X groups are acyloxy. Cis- and trans - # - fluoro - α,# - bis - (trifluoro-methyl) styrenes are obtained :as intermediates by reaction of phenyl lithium with perfluorobut-2-ene at 0 C. Pharmaceutical compositions which inhibit pregnancy in warm blooded animals comprise stilbenes of Formula (I) together with a pharmaceutically acceptable carrier or diluent, preferably in forms suitable for administration by oral, parenteral or rectal routes.
Patent GB-1257654-A (GB)
IPC: H01H1/023
Filed: 1969-04-16
Abstract: 1,257,654. Switch contacts. CHUGAI ELECTRIC INDUSTRIAL CO. Ltd. 16 April, 1969, No. 19422/69. Heading H1N. [Also in Division C7] An electric contact consists of silver-cadmium oxide alloy with a silver layer adhered thereto for attachment to a backing, the proportion of cadmium oxide in the alloy being a maximum at the silver side and decreasing towards the opposite (contact) side. The contact is made by respectively bonding to opposite faces of silver-cadmium alloy (containing, e.g. 13% Cd) a layer of silver and a layer of material to inhibit oxidation of alloy beneath it (e.g. Ni, Cr, Al, Cu, Fe, alloy or salt thereof or glass), heating the composite in an oxidizing atmosphere, and then removing the oxidationinhibiting layer. In a modification, two composites each consisting of a layer of silver and a layer of silver-cadmium are joined with their silver layers outermost, the double composite is heated in the oxidizing atmosphere, and the two resulting contacts then separated.
Patent GB-1258911-A (GB)
IPC: B41F13/02
Filed: 1968-02-28
Abstract: 1,258,911. Feeding webs. LINOTYPE & MACHINERY Ltd. 20 May, 1969 [28 Feb., 1968], No. 9578/68. Heading B8R. The extended main drive shaft 1 of a rotary printing press including a printing unit or units (not shown) co-operates with an adjustablepressure roller 6 to create a nip for feeding a web into the press, the web being drawn from a reel 5 supported in a stand including side frames 3, 3<SP>1</SP> and the shaft 1 imparting a linear speed of feed to the web equivalent to the linear speed of printing imparted by the press. The shaft 1 runs parallel with the press and the stand is provided with a turning bar 81, adjustable by a hand wheel 84, so that the web is turned into line with the press. A linkage 7, 14, 4 enables the pressure roller 6 to be moved into or out of engagement with the shaft 1 which may be provided with a knurled surface or a sleeve. An additional web feed unit may be provided by adding a further side frame 3<SP>2</SP> to the existing reel frame, or by stacking the reel stands one above the other, suitable extensions to the drive shaft 1 being provided in each case.
Patent GB-1267260-A (GB)
IPC: H02P7/292
Filed: 1969-12-12
Abstract: 1,267,260. Control of D.C. motors. GENERAL ELECTRIC CO. 12 Dec., 1969 [20 Dec., 1968], No. 60741/69. Heading H2J. An electric motor 10 is supplied from an A.C. source with direct-current by means of a phasecontrolled amplifier 33 comprising rectifiers having variable firing-angles, a linear relationship being maintained between the motor current and the input control signal for the motor. A servo signal from a command source 22 passes through a non-linear amplifier 24 and is summed in a further amplifier 26 with a positive feed-back tachometer signal proportional to the back E.M.F. of the motor. Output signals from the amplifier 26 are applied to firing circuits in the power amplifier 33 to vary the magnitude of the actuating signals at small firing-angles as a function of the back E.M.F., whereby a linear response of the motor current with variation of the control signal applied to the amplifier 24 is obtained. The servo signal from the command source is applied to a differential amplifier having a feedback loop which includes a pair of Zener diodes in series with a resistor and shunted by a further resistor whereby a shift from high to low gain operation takes place when the threshold value of the Zener diodes is exceeded. The summed output signal from amplifier 26 is supplied to respective unijunction transistor firing circuits for forward or reverse operation of the motor, Fig. 2 (not shown). An analogue signal proportional to back E.M.F. may be developed in an amplifier from a dual input of motor current and terminal voltage, Fig. 3 (not shown). The differential amplifier may comprise a pair of transistors having a common emitter circuit, Fig. 4 (not shown). In another embodiment, the summing amplifier is dispensed with, a fixed gain amplifier being associated with a variable gain attenuating network whose output voltage is compared with a voltage representing the back E.M.F.. The object of the invention is to provide a linear response to a control signal despite the non-linearity inherent in firing angle control with a sinusoidal waveform.
Patent GB-1289098-A (GB)
IPC: B21B29/00
Filed: 1968-10-21
Abstract: 1289098 Rolling mills UNITED ENG & FOUNDRY CO 15 Oct 1969 [21 Oct 1968] 49805/68 Addition to 1107727 Heading B3M A strip rolling mill is provided with roll bending apparatus for varying the shape of the roll gap, to correct for changes in the thickness of strip being rolled. The roll bending forces are applied to the ends of the backing rolls 17 and 18 by piston assemblies 36 and 49. One piston of each assembly acts through a yoke on an associated roll end, while the other piston acts on a beam 23 or 45. The beams are located in the windows of the mill for isolating bending reaction forces from the housing.
Patent GB-1295924-A (GB)
IPC: A45D20/10
Filed: 1970-09-14
Abstract: 1295924 Haircurler SPERRY RAND CORP 14 Sept 1970 [13 Oct 1969] 43774/70 Heading A4V [Also in Division A5] A haircurler for attachment to a portable hair drier comprises a hollow elongated casing with axial vents for discharging heated air into a hollow hair roller. The curler 10 which is made of plastics material has a conical probe 24 with a closed end 27 and is provided with axial vents 25 separated by ribs 26. The enlarged base 23 limits the depth of insertion of the probe 24 into the roller. The hairdrier which is of conventional design, comprises a motor 15, a fan 16 and a heating element 17. The forward end is provided with a socket 19 surrounding hot air outlet 20. A plug 29 reinforced by metal collar 33, fits into socket 19 and locks the curler when the slots 30 engage lugs (31).
Patent GB-1297114-A (GB)
IPC: B26D5/20
Filed: 1968-11-28
Abstract: 1297114 Motor driving arrangements MASSON SCOTT THRISSELL ENG Ltd and A J R PLUMMER 26 Nov 1969 [28 Nov 1968] 56499/68 Heading H2A In a drive for a machine M, such as a papercutting machine, having a part MC presenting a constant torque loading to a first shaft 1 and a part MV presenting a variable torque loading to a second shaft 2, the two parts being required to be driven in synchronism, the shafts are coupled by a drive belt 4 and are driven by first and second commutator motors A1, A2 respectively the armatures of which are connected in series to a supply SS and the field windings of which are connected to a common supply preferably SS. As shown, the belt 4 extends between pulleys 5, 6 the diameters of which are adjustable so that the ratio between the speeds of the shafts can be pre-set. Assuming that a constant supply voltage is delivered to the motors, changes in the torque loading on shaft 2 produce changes in the armature current of both motors and as the torque loading on shaft 1 is unchanged, the variations in torque output of motor A1 are passed to shaft 2 via belt 4 to assist in stabilizing the system. A tachogenerator 7 may be coupled to shaft 1 to provide a signal indicative of the speed of the shaft and which is compared with a voltage provided by a potentiometer 9 representing the desired speed of the shaft, the resulting voltage being used to control the supply SS through, for example, a thyristor regulator to maintain the speed of shaft 1 at the desired value.
Patent GB-1297309-A (GB)
IPC: C08F4/68
Filed: 1970-03-16
Abstract: 1297309 Polymerizing alpha olefins ESSO RESEARCH & ENG CO 16 March 1970 [7 May 1969] 12500/70 Heading C3P Copolymers of ethylene and a C 3-10  alpha olefin are produced using a catalyst system comprising an alkyl aluminium and the reaction product of a vanadium compound with an aluminium alkoxy compound in which the alkyl aluminium compound has the formula RmAlX n , wherein R is C 1-12  monovalent hydrocarbyl, X is a halogen having an atomic number above 17 or C 1-12  monovalent hydrocarbyl, m is 1-3 and m + n = 3, and in which the vanadium compound is selected from vanadium oxytrihalides and tetrahalides and the aluminium alkoxy compound has the general formula Al(OR) 3 , where R is C 1-12  monovalent hydrocarbyl. In the examples: (1) a copolymer of ethylene and propylene is prepared in heptane using the reaction product of VOCl 3  with Al(O iso C 3 H 7 ) 3  or Al(O sec C 4 H 9 ) 3 , and Al(C 2 H 5 ) 2 Cl as cocatalyst; (2) a copolymer of ethylene and propylene is prepared in heptane using the reaction product of VOCl 3  with Al(O iso C 3 H 7 ) 3  and Al(i Bu) 3  or Al 2 (C 2 H 5 ) 3 Cl 3  as cocatalyst; (3) a terpolymer of ethylene, propylene and 5-ethylidenenorbornene is prepared in heptane using the reaction product of VOCl 3  with Al(O i Pr) 3  and Al(C 2 H 5 ) 2 Cl as cocatalyst.
Patent GB-1302350-A (GB)
IPC: C07C17/281
Filed: 1969-03-03
Abstract: 1302350 Oligomerization of tetrafluoroethylene IMPERIAL CHEMICAL INDUSTRIES Ltd 25 Feb 1970 [3 March 1969 1 Aug 1969] 22052/72 and 22053/72 Divided out of 1296676 Addition to 1082127 Heading C2C Oligomers of tetrafluoroethylene are prepared by contacting tetrafluoroethylene with a solution prepared by dissolving potassium fluoride and a quaternary ammonium chloride, bromide or iodide in methanol and replacing the methanol by an anhydrous polar aprotic solvent, the methanol being removed by distillation. Aprotic solvents specified are dimethyl formamide, N- methyl-pyrrolidone, dimethyl acetamide and the dimethyl ethers of ethylene glycol and diethylene glycol. A free radical polymerization inhibitor, e.g. α-pinene, may be present.
Patent GB-1303185-A (GB)
IPC: B41F21/00
Filed: 1970-05-26
Abstract: 1303185 Printing apparatus LETRASET INTERNATIONAL Ltd 19 April 1971 [26 May 1970] 25220/70 Heading B6C [Also in Division D1] A web which is to be printed or otherwise treated, and is carried by an endless band 10, which moves continuously or intermittently, or alternatively an endless band which receives an imprint which is later transferred to a receiving surface, performs at least one 360 degree loop over guide rollers, during which it is displaced laterally along an impression member 1. A first treatment or coating operation may take place during a first contact with the member 1, and subsequent operations during later contacts. Letterpress, gravure or screen printing, electrostatic printing, hot or cold foil stamping, perforating and die cutting may be carried out. For example the web may be printed on by three gravure cylinders 11-13. Alternatively the band 10 may be an offset member of, for example, rubber-covered steel, and receive successive imprints. The multiple image on the band 10 may be dried by heating, then transferred by heat, by pressure or by adhesive properties to articles to be printed, or to an intermediate carrier which is preferably a tape but may be of any form.
Patent GB-1320498-A (GB)
Title: Formwork
IPC: E04G9/04
Filed: 1969-08-30
Abstract: 1320498  Shuttering for casting concrete I E LITTLE 28 Aug 1970 [30 Aug 1969] 43268/69 Heading E1S A shuttering panel comprises a wooden frame 10 of side longitudinal members 12 and transverse struts 13, which frame is faced on both sides with plywood sheets 11, the interior space being filled with heat insulating material 14 comprising foamed polystyrene; in use transverse passages at the longer edges of the panel co-operate with those of the adjacent panels to provide openings for the insertion of tie rods between adjacent panels. The panels may have elastic edging strips 15 to. protect the edges and to seal the joints, the strips 15 having slots 22 for the insertion of tie rods. The panels may be connected together by toggle devices 16, 17, and the tie rods 21 may be secured by slotted plates 19 held in brackets 18 on the outside of the shuttering and engaging annular grooves in the tie rods. The tie rod ends or protrusions 24 on the toggle devices are threaded for fastening on threaded extension rods which are used to retain aligning walings by means of nuts or wedges, (Figs. 6 and 7, not shown).
Patent GB-1320751-A (GB)
Title: Spring applied brake units
IPC: B60T17/08
Filed: 1970-03-26
Abstract: 1320751 Brake actuators CLAYTON DEWANDRE CO Ltd 19 April 1971 [26 March 1970] 14752/70 Heading F2F A spring applied, hydraulic pressure released brake actuator has a mounting flange 2 through which passes an hydraulic passage 14 leading to a chamber 5 the pressure in which acts on a piston 7 to hold a hollow piston-rod 6 and thrust rod 10 retracted, release of the hydraulic pressure enabling a compression spring 8 to move piston-rod 6 and through a stop collar 12, circlip 13 and the thrust rod 10 to apply the brake. If hydraulic pressure is lost and the actuator applies the brake a bolt 16 can be unscrewed allowing further decompression of spring 8 and thrust rod 10 to be released through piston rod 6 to release the brake.