baber/WOPTO huggingface dataset:
Patent GB-1358617-A (GB)
Title: Stabilization of aqueous solutions of bromine
IPC: C01B7/09
Filed: 1972-12-05
Abstract: 1358617 Stabilising bromine MINES DE POTASSE D ALSACE SA 5 Dec 1972 [7 Dec 1971] 56108/72 Heading A5E [Also in Division Cl] Bromine in aqueous solution is stabilised by addition of dimethyl-5, 5-hydantoin. Preferably the aqueous solution has a Br concentration of not more than 5 mg/1, and the dimethyl-5, 5-hydantoin is added in an amount of between 10 and 40 mg/l. The stabilising agent may be added to a solid bromine compound which will release bromine under the action of an oxidising agent when in contact with water, e.g. an alkali metal bromide. In such compositions an amount of dimethyl-5, 5- hydantoin which is less than 50% by weight is preferred.
Patent GB-1407703-A (GB)
Title: Treatment of paper sludge to recover titanium values
IPC: C22B34/12
Filed: 1972-12-05
Abstract: 1407703 Titanium tetrachloride PLASTIC RESEARCH LABORATORIES Ltd 5 March 1974 [5 Dec 1972] 56149/72 Heading C1A Titanium values are recovered as TiCl 4  from waste paper sludge containing organic fibres and TiO 2  by drying the sludge, carbonizing, e.g. in an atmosphere of N 2  or CO 2  and finally chlorinating. The TiCl 4  is obtained by condensation of the products of chlorination and may be purified by standard techniques such as fractional distillation or passing through active carbon. Carbon or carbonizable material may be blended with either the sludge or the dried sludge solids before the carbonization step. The chlorination step is performed within a preferred temperature range of 500-800‹ C.
Patent GB-1376616-A (GB)
Title: Optical display system
IPC: G09F19/22
Filed: 1971-12-04
Abstract: 1376616 Display apparatus SENECA PLASTICS Ltd 4 Dec 1971 56418/71 Heading G5C [Also in Division G2] In a display, which may be animated, an observer 4 moves along a path 5 at right angles to elongate light sources behind pellucid image bearing sheets 2 of high optical transmissibility and low diffusibility. The observer 4 thus sees as he passes each sheet 2 successive segments thereof which produce a cumulative impression of the whole image. The series of sheets may each display the same image to provide the impression of a static image or the images may differ to give an impression of animation. The light sources 6 may be artificial lights or ambient line directed through a slit. The light path behind the sheet 2 may be optically folded (details, Figs. 2-10, not shown), this folding is usually required when the display is arranged along a tunnel wall for observation by passengers in an underground train.
Patent GB-1214310-A (GB)
Title: Floor joint cover assembly
Inventor: THOM WENZEL WILLIAM
IPC: E04B1/68
Filed: 1967-12-13
Abstract: 1,214,310. Expansion joints. W. W. THOM and F. M. JONES. 13 Dec., 1967, No. 56567/ 67. Heading E1B. In an expansion joint between floor or other sections 14, 16 a cover plate 26 flanked by a cork or like filler strip 70 is resiliently held by screws 102 and springs 108 against resilient strips 30, 32 on the recessed top faces of anchor members 22, 24 so that the plate 26 can tilt and slide thereof. In a modification the cover plate is recessed to receive vinyl tiling. (For Figure see next column)
Patent GB-1205396-A (GB)
Title: Mine shaft winding apparatus
Inventor: SMITH ROYEL ALBERT
IPC: B66B5/12
Filed: 1966-12-19
Abstract: 1,205,396. Winding apparatus. COAL INDUSTRY (PATENTS) Ltd. 15 Dec., 1967 [19 Dec., 1966], No. 56676/66. Heading B8B. A control system in a colliery shaft winding apparatus for preventing an accumulation of slack cable above a halted cage comprises a unit 1 for producing a first output signal 2 related to the amount of cable displaced by a winding drum, a detection device 6 for producing a second output signal 7 related to the extent of movement of a cage attached to the cable, and a means responsive to the first and second outputs which produces a control output when displacement of the cable exceeds the extent of movement of the cage by a predetermined maximum excess of movement, which control output prevents further displacement of the cable. The unit 1 comprises a pair of solid state detectors associated with a plate rotatable in proportion to the cable drum, and capable of generating the pulsating output 2 representing movement of the cable and passing directly to a pulse counter 4, and a pulsating output 3 which indicates the direction of rotation of the cable drum and which passes to a counter control circuit 5. The cage detection device 6 which is provided in the delivery/loading station area of the shaft, comprises a reed switch commutator unit driven by a spring-loaded wheel engageable by a skid on the cage in the detection area, a pulsating output 7 from the detector 6 passing to the counter control circuit 5. In operation, upon rotation of the drum, pulses of the output 2 feed the counter 4 until a predetermined number, indicative of a predetermined cable length, cause the counter to trip, which produces a signal to stop further rotation of the drum. The counter trip can only be cleared if the drum is rotated in the opposite direction to wind up the cable. The pulses of signal 2 are added or subtracted at the counter 4 depending on whether the pulses of signal 3 represent the paying out or winding in direction of the drum respectively. The pulses of output 7 from the cage detector 6 cause the count in the counter 4 to be reduced to zero or by unity per pulse such that pulses from the unit 1 are balanced out provided the cage is moving whilst in the detection zone. Once the cage leaves this zone a cut-off device prevents the counter from tripping. An indication of slip either between the cable and the drum or between the cage and the detector unit is achieved by comparing the occurrences of the output pulses 2 and the output pulses 7.
Patent GB-1203831-A (GB)
Title: Apparatus for supporting and rotating a round tube during a flame-cutting operation on one of its ends
Inventor: MORGAN HAROLD RAYMOND
IPC: B23K7/00
Filed: 1968-03-23
Abstract: 1,203,831. Flame cutting. H R. MORGAN. 19 March, 1969 [23 March, 1968; 30 Nov., 1968], Nos. 14157/68 and 56977/68. Heading B3V. [Also in Division F2]  Apparatus for holding a cylindrical hollow workpiece in a flame-cutting machine comprises means for rotating the workpiece and constraining it against axial movement consisting of two or more pairs of supporting rollers and at least one holding-down roller adjustably mounted to tightly embrace the workpiece resting on the supporting rollers, a gear-wheel having a pinching screw for clamping it to the workpiece, said wheel engaging drive means so that the workpiece is rotated in synchronism with a cam or crank operating the cutting torch. The supporting rollers 3A, 4A; 6A, 7A; and 9A, 10A, are carried by pedestals 2, 5 and 8, respectively (Fig. 2). A holding-down roller 11 is mounted between pivoted plates 13, 14 and is held against the workpiece by means of a screw-threaded pivoted rod 17 and a spring-loaded tightener 20 which engages a claw 22A formed in the plates. The gear-wheel 30 held on the workpiece by set-screw 31 engages another gear-wheel 24 chain-driven in synchronism with the drive for the cutting torch (not shown). In another embodiment the supporting rollers 3A, 6A, 9A are carried by levers 37, 41, 42 mounted on a shaft 39 (Fig. 11) and the rollers 4A, 7A, 10A on levers 38, 45, 46 mounted on a shaft 40. Each shaft carries a gear-wheel 48, 49 which interengage to ensure that the levers move through equal angles but in opposite senses when adjusted to accommodate workpieces of different diameters. The lever 37 is held in its adjusted position by engaging in detents 51, 51A in a pair of locking plates 62. In another embodiment (Fig. 13) an alternative means for exerting pressure on the holding-down roller includes an adjustment for change of workpiece size and a final clamping adjustment. The first adjustment is carried out by a spring-loaded tie-rod 17A provided with pegs 17F, 17G for engaging the claw on the pivoted plates 13, 14 carrying the roller 11 and the second by a toggle lever 20B mounted on a shaft 200 the tie-rod 17A being pivoted to a crank arm on the lever.
Patent GB-1442649-A (GB)
Title: Method of and apparatus for seam welding plant for producing hollow ingots by an electroslag melting process
IPC: B23K11/10
Filed: 1973-12-11
Abstract: 1442649 Supply systems for seam welding apparatus RESISTANCE WELDER CORP 11 Dec 1973 [11 Dec 1972] 57281/73 Heading H2H Seam welding apparatus comprises an electrode mechanism 10, 11 which is moved relative to material 12, 13 to be welded, a source of A.C. and a circuit arrangement for supplying welding current to the electrode mechanism only during a fractional portion of each successive half cycle. The electrode mechanism is connected to the secondary of a transformer 16, the primary of which is connected to the mains supply via ignitrons 25, 26 controlled by a phase shift control 27. For high speed welding, a control knob 34 is turned to the H portion thereby closing switches 23, 24 and opening switches 21, 22, 33. A resistor 31 is therefore connected in circuit and delays the firing of the ignitrons until after the maximum of each half cycle. For normal speed welding the knob 34 is turned to the R position thereby opening the switches 23, 24 and closing the switches 21, 22, 33. The resistor 31 is shorted out and timers 28, 28a control the duration for which complete half cycles of welding current are supplied as well as the cooling intervals between the groups of half cycles. The knob 34 may control the normal and high speed switches 51 and 52 respectively of a speed control 15 for the electrode motor 14.
Patent GB-1356648-A (GB)
Title: Apparatus for protecting a pump motor intended to be immersed in liquid
IPC: H02H7/085
Filed: 1971-12-21
Abstract: 1356648 Protective arrangements E SARLIN AB OY 21 Dec 1971 [5 Nov 1971] 59427/71 Heading H2K  A control and protective circuit for a submersible pump motor 1 comprises liquid level sensing means, e.g. float switches 2, 3 and 9, 11, for breaking and remaking the motor circuit 4, a temperature sensing device 7 to break the motor circuit should the temperature of the motor become too high, and an overload protection device 6 to break the motor circuit should the motor be overloaded. In the arrangement shown, the momentary closing of a manual start switch 14 or the high level float switch 11 applies a closing pulse to the control circuit 15 of a switch 8 which closes to start the motor. The motor is switched off by the opening of the lowlevel float switch 3, the opening of a manual switch 13, or the operation of either device 6 or 7, and would only be switched on again by the float switch 9, 11, when the motor is fully submerged. The devices 6 and 7 may include thermistors and the float switches may be combined into a single device.
Patent GB-1244044-A (GB)
Title: Signal translating stage
Inventor: STECKLER S
IPC: H03F1/30
Filed: 1968-12-18
Abstract: 1,244,044. Transistor coupling circuits. RCA CORPORATION. 18 Dec., 1968 [19 Dec., 1967], No. 60080/68. Heading H3T. A grounded emitter transistor having a collector resistor 34 has connected across its emitter-base junction a diode or a transistor 10 with its collector and base linked, and receives an input signal through a resistor 26 whereby the output signal at 40 is related to the input by the ratio R34 to R26, and by the ratio of the junction areas of diodes 14-18, 16-20. For equal emitter-base junction areas in the two transistors the collector currents are equal and the input and output signals are related by the ratio of the resistors 26, 34. The output D.C. level is adjusted at 32. To increase current gain, the emitter-base junction area of the transistor 30 is increased, or alternatively, a plurality of transistors is connected in parallel with transistor 30. Applications include a phase splitter (Fig. 2, not shown) in which the signal from the collector of a PNP transistor (52) passes through the input resistor (26), and the output from the collector of transistor (30) is connected to an emitter follower (50). The output of the emitter follower and the collector of PNP transistor provide the antiphase outputs. In a switching circuit (Fig. 3, not shown) the input to the diode-connected transistor (230) is received from a long-tailed pair via a Zener diode (220), the output transistor (225) thus being prevented from saturating. In a high-gain wide-band amplifier (Fig. 4, not shown) the collector resistor (26) input of the diode-connected transistor (10) is received from an emitter follower, and the collector load of transistor (12) is a tuned circuit.
Patent GB-1282578-A (GB)
Title: Improvements in or relating to advertising devices
Inventor: TROTOUX RENE
IPC: G09F11/02
Filed: 1969-12-10
Abstract: 1282578 Advertising device R TROTOUX 10 Dec 1969 [13 Dec 1968] 60199/69 Heading G5C A drum 1 is suspended near its upper end (e.g. via arms 2) from a driven shaft 6 through a universal joint 4. This arrangement permits the sidewall of the drum, which may carry posters, to remain vertical when the device is mounted for display in a moving vehicle. The side wall of the drum may be of transparent or translucent material and carry opaque indicia visible by means of a light source within the drum. The shaft may be rotated by an electric motor 12 below a fixed base 9 joined by plates 10 to a tube 7 in which the shaft 6 rotates.
Patent GB-1374620-A (GB)
Title: Apparatus and method for continuously printing yarns with splash pattern of apparently random pitch
IPC: D06B11/00
Filed: 1971-12-29
Abstract: 1374620 Space-dyeing yarns KANEBO KK 29 Dec 1971 60614/71 Heading D1L [Also in Division B6] In a method for continuously space-dyeing yarn in a pattern of apparently random pitch the yarn is fed past a series of dye-carrying members and is intermittently pressed against the surfaces of the members by pressing means associated with each member, each pressing means being operated in accordance with signals generated by a respective programme, the programmes for the respective yarn pressing means being of different periodicity so that the yarn is dyed with a pattern which repeats only after a time which is the lowest common multiple of the periodicities of the different programmes. The space dyeing is preferably performed by passing the yarn above the surfaces of a plurality of dye carrying rollers arranged in series each roller (Fig. 2) supplied with dye by a furnisher roll rotating in dye bath 2 and doctored by a doctor roll 4 and pressing the yarn intermittently into contact with each of the rollers 3 by means of a respective stamping foot 21 (or roller (25), Fig. 5, not shown). The signal generating means for operating each stamping foot 21 preferably includes a rotatable drum 8 (Fig. 3) having a predetermined pattern of projecting ridges 9 spaced round its circumference and a limit switch 10 having an actuating lever 11 which engages ridges 9 as the drum rotates. When lever 11 is actuated, switch 10 energizes solenoid 13 (Fig. 2) which attracts its movable core 14 and thus causes T-shaped rod 15 to pivot anti-clockwise and foot 21 to press the yarn against the dye applicator roller. As the ridge moves out of contact with lever 11 the current is switched off and stamping foot 21 is returned to its out of contact position by spring 20. The drum 8 may be furnished with projecting plates (24) [Fig. 4, not shown] which are of variable length and allow different yarn-roller contact times. Alternatively the pattern of signals for each roller may be generated by a perforated tape and an associated photo-electric reading device. Suitable plant for carrying out a continuous spacedyeing operation includes a bobbin frame, means for feeding-yarns from the bobbins in close proximity to a plurality of dye carrying rollers arranged in series, a hot air drying oven for fixing the dyed yarns and a wind up frame.
Patent GB-1277666-A (GB)
Title: Improvements in the n-alkylation of nitroimidazoles
Inventor: SCOLLICK NEIL MONTGOMERY
IPC: C07D233/94
Filed: 1969-12-17
Abstract: 1277666 1 -(2<SP>1</SP>-Alkylthioethyl)-nitroimidazoles PFIZER Ltd 26 Nov 1970 [17 Dec 1969] 61415/69 Heading C2C Nitroimidazoles having an N-(2-alkylthioethyl) substituent group are prepared by reacting nitroimidazoles having an unsubstituted -NH-in the ring with a 2-alkylthioethanol in the liquid phase in the presence of a strong, non- oxidizing mineral acid and of a Lewis acid. Preferred starting compounds are 2- or 4-alkyl-5- nitro-imidazoles and preferred acids HCl or HBr and ZnCl 2 . Examples relate to the preparation of ethyl, methyl and n-propyl [2-(2-methyl-5- nitro- 1 -imidazolyl)ethyl] sulphides and ethyl- [2-(2-iso-propyl-5 or 4-nitroimidazolyl)ethyl]- sulphide. The products can be characterized as the p-toluene sulphonic acid salts and oxidized with H 2 O 2  to the corresponding pharmaceutically active sulphones.
Patent GB-614351-A (GB)
Abstract: 614,351. Electric gas lighters. CRAIG, W. R. July 11, 1946, No. 20767. [Class 75 (iii)] A heater element assembly for a gas lighter of the kind employing an electric battery comprises a metal pillar d passing through an insulating washer e seated in a metal collar f, and two metal arms supporting the heater element c, one arm h being clamped between the washer e and a flange f<1> on the collar f, and the other arm g being electrically connected to the metal pillar d. The assembly is fitted into a base b and covered by a slotted bell-shaped housing a, the collar f being clamped between a flange a<1> on the housing a and spun over ledge b<2> on the base b. The base b is provided with an insulating washer i through which the metal strip d projects to connect with the battery lead or terminal when the base b is screwed to a tube or to the lamp socket of a hand torch.
Patent GB-1246340-A (GB)
Title: Improvements in earth-working vehicles
Inventor: GUINOT GABRIEL
IPC: E02F9/02
Filed: 1968-12-30
Abstract: 1,246,340. Propelling vehicles. POCLAIN. 30 Dec., 1968 [9 Jan., 1968], No. 61600/68. Addition to 1,063,980. Heading B7H. In an earth working vehicle comprising two wheeled chassis parts 1, 2 which are slidable horizontally relative to one another by a double-acting ram 5 and anchoring means on each part 1, 2 for selectively anchoring it to the ground, one of the anchoring means is an earthworking implement 9. As shown the implement is a scoop or bucket 9 controlled by hydraulic or fluid rams 8a, 9a, further hydraulic or pneumatic rams 5, 11 controlling relative movement of the chassis parts and operation of an anchoring leg 10. The wheels may be selectively braked to supplement the action of the anchoring means.
Patent GB-632217-A (GB)
Abstract: 632,217. Agricultural implements. GIBSON, E. C. March 11, 1947, No. 6830. Convention date, Oct. 2, 1946. [Class 6(i)] A tractor-mounted disc plough includes a pair of spaced parallel links 13, 14, pivoted at B to the tractor chassis, and pivotally supporting a transverse drawbar 12 at their outer ends. The links are supported from hydraulic-lift arms 21, 22 by adjustable rods 23, 24. The plough unit comprises tool beams 31, 32 bolted to the drawbar 12 and carrying disc ploughs 33, 34 at their rear ends. A stack of plates 36 is bolted to the tool beams forwardly of the drawbar pivots A and serves to balance the weight of the rear plough, and to reduce the downthrust on a disc-wheel 38 mounted on the plough beam 32 to prevent side slip. The drawbar 12 includes a bracket 47 the upper end of which is connected by an adjustable link 55 to a shock-absorbing device 51 attached to the tractor. Since the pivotal axis B lies below the axis A, which in turn lies behind the point of contact of the tool 33 with the ground, the forces produced during ploughing tend to rotate the plough anticlockwise about the axis A, which motion is resisted by the link 55 and shock-absorber 51. The resultant force tends to be a downward pull on the links 23, 24 which increases the adhesion of the tractor wheels to the ground. The depth of working of the tools may be altered by adjustment of the links 23, 24, and 55.
Patent GB-1285590-A (GB)
Title: Improvements in and relating to press drive mechanisms
Inventor: SPACHNER SHELDON ARTHUR
IPC: B30B1/14
Filed: 1969-12-30
Abstract: 1285590 Extrusion presses GULF-WESTERN INDUSTRIAL PRODUCTS CO 30 Dec 1969 [13 Jan 1969] 63329/69 Heading B3P [Also in Divisions B5 and F2] A press, especially a long stroke extrusion press comprises a first link 98 pivotally connected at one end to a reciprocable slide assembly 104, a connecting link 84 having opposite ends pivotally connected to a rotatable crank 80 and the other end of the first link 98, and a constraining link 88 pivoted at one end to the press frame at 92, and at the other end to the connecting link 84 at a point spaced from the connection between the first link 98 and the connecting link 84. This linkage imparts a fast advance and return motion to the slide and a slow motion through the working stroke. In Fig. 5 the linkage is shown diagrammatically with the reference numerals primed. The press shown is provided with an extrusion ram 122 and piercer 123. The crank 80 is driven by an electric motor (32), Figs. 2, 3 (not shown), through a flywheel (38), clutch (44) and gearing 54, 56, 58-68. The shafts 76 and 92 for the crank 80 and link 88 respectively are preferably in the same vertical planes and mounted in the parting planes of sections 18, 20, 22 of the press frame to facilitate assembly.
Patent GB-752900-A (GB)
Abstract: 752,900. Filtering. BARIL, F. Feb. 9, 1954 [Feb. 20, 1953], No. 3819/54. Class 46. A filter which may be of the continuously operating type comprises a cylindrical casing 1 adapted to rock about a rotary axis 11 extending transversely through the middle of the filter and to enclose two identical elementary filters separated from each other by a transverse partition 3 on the axis 11, each elementary filter including at least one annular filtering chamber 28, Fig. 2, coaxial with the casing 1 and the chambers comprising an outer cylindrical filtering gauze 12 and an inner cylindrical gauze 13 which latter is operative throughout at least a section of the filter chamber 28, filtering being effected through both gauges simultaneously. Inner cylindrical and coaxial partitions 2 constitute the inner walls of the filter chambers and if need be separate coaxial filter chambers from one another. The sheets of gauze may be made of metal, fabric or plastic material and one side of a filter chamber contains earth, asbestos, collodion, &c. held between two such sheets. Pairs of metal grids 14, 17 and 19, 20 support the gauze filters between them and beyond each pair is a perforated metal cylinder 15, 21, the cylinders making a guide for an annular cleaning piston 32 which may move freely under fluid pressure; these cylinders extend at least part of the length of the gauze and may be imperforate at their inner ends where they merge into flanges 33, 34 adapted to be clamped through stationary packings 35 to the casing 1 and partition 2 respectively. A manually or hydraulicallyoperated lift valve 36, through its packing 361, urges the flanges 33, 34 against the gauze filter sheets to support them. Liquid to be treated flows in through passages 57 in the valve 36 and out through ports 58 in the casing 1 and partition 2 and passages 59 in the flanges 33, 34. The filter element being below the axis 11 for cleaning purposes, compressed air or cleaning liquid is directed on to the piston 32 to displace it downwardly to clean the filter chamber, the valve 36 being opened to permit discharge of the sediment; pipes 60 direct compressed air on to the valve to clean it. The piston 32 may be omitted; when it is provided, spring actuated terminal covers for the chamber 28 may replace the valve 36. Vibrations which may be supersonic may be applied to the filter gauze or the movable parts or to the axle 11. The casing 1 may be wire wound. The whole filter is rocked through 180 degrees from filtering to cleaning positions and vice versa, stops on the bearing members of the axis 11 limiting the movement which may be effected hydraulically. In a modification, the chamber 28 does not extend to the outer end of the casing 1.