baber/WOPTO huggingface dataset:
Patent GB-1252657-A (GB)
IPC: D04B15/66
Filed: 1969-02-07
Abstract: 1,252,657. Knitting - machines. ELITEXZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI. 7 Feb., 1969 [21 Feb., 1968], No. 6659/69. Heading D1C. A pattern drum has a row of pins additional to those required for patterning so that the initial position of the drum may be arbitrarily selected by the presence or absence of a pin. The drum is rotated by a pawl 22 fixed to an arm 6 carrying a follower roller 4 bearing against a cam 3 fixed to the needle cylinder. A lever 9, mounted on the same axis 8 as the pattern levers, has a projection 10 contacting in the preferred embodiment the excess row of pins 20. When the projection detects the absence of a pin at the initial position, the lever 9 is spring urged inwards and a recess 11 pushes a pin 7 on the arm 6, so forcing the roller 4 away from the cam 3. The pawl therefor becomes inoperative until restored by a Bowden cable 15 at the dictates of the main pattern drum. The initial position may be indicated by a short pin, or a pin in an otherwise empty row.
Patent GB-1252727-A (GB)
IPC: H03K17/795
Filed: 1970-04-21
Abstract: 1,252,727. Photo transistor bias circuits. STANDARD TELEPHONES & CABLES Ltd. 21 April, 1970, No. 18977/70. Heading H3T. The current through a photo transistor having a capacitive output coupling is stabilized at a low level despite changes in ambient light by a feedback transistor arranged between base and emitter as shown. The circuit illustrated is for triggering an electronic photographic flash unit in response to the light from a second flash.
Patent GB-1264665-A (GB)
IPC: B21D51/38
Filed: 1969-03-03
Abstract: 1,264,665. Bottles, stoppers &c. VAN LEER INDUSTRIES Ltd. 3 March, 1969, No. 11251/69. Heading B8T. [Also in Division B3] A container closure comprises a raised collar 2 in the container wall 1 having a cylindrical free edge 2a and a curved portion 2b which is engaged by an outer leg 5a of a channel-section ring member 4 carrying a plug 7. A resilient plastics 3 is positioned between the outer leg 5a and a conical inner leg 5b of the member 4 to improve the sealing. The plug 7 is of the screw type or, as shown, of the bayonet type having four projections 8 engaging four projections 9 of the member 4, and is provided with a resilient sealing ring 11. A sealing cap 12 may be simultaneously attached to the metal container.
Patent GB-1267105-A (GB)
IPC: A61M1/14
Filed: 1969-11-18
Abstract: 1,267,105. Purification of dialyser fluid. CCI AEROSPACE CORP. 18 Nov., 1969 [2 Dec., 1968], No. 56346/69. Heading B1X. In order that dialysing fluid, e.g. a sterile sodium chloride-glucose-water solution may be recycled to a dialysis membrane for repeated reduction of the body urea concentration, urease and "zirconium phosphate" ion exchanger are contacted with the dialysing fluid so that the urea which diffuses from the blood into the dialysing fluid is broken down by the urease into ammonium carbonate whereupon the ammonium ions are removed by the ion exchanger. The term "zirconium phosphate" includes ZrNa(PO 4 ) 2 .H 2 O, ZrH (PO 4 ) 2 .H 2 O or ZrKHPO 4 .H 2 O, and may be present as an ion-exchange column with urease absorbed therein. Alternatively the urease can be dissolved in the dialysing fluid; or the urease can be absorbed on the zirconium phosphate and the latter added in particulate form to the dialysing fluid to produce a circulating slurry; or the urease and zirconium phosphate may be added separately to form a circulating slurry. If the exchange column is used it can be vented for carbon dioxide.
Patent GB-1267242-A (GB)
IPC: H02M3/135
Filed: 1969-03-31
Abstract: 1,267,242. D.C. to D.C. converter. DORNIER SYSTEM G.m.b.H. 31 March, 1969 [22 Oct., 1968], No. 16723/69. Heading H2F. A D.C. to D.C. converter comprises a series arrangement of an inductor D and rectifier G connected between an input source U andan output V, the output being successively shunted by a switching device, such as transistor T, connected at the junction of inductor D and rectifier G. The conductive state of switching transistor T is controlled in part by a winding D1 regeneratively coupled to inductor D and also by a further winding D2 inductively coupled to inductor D. As described, when transistor T is conductive, a current builds up in inductor D until transistor T is turned off, when the current is switched via rectifier G to the load connected at terminal V. The average voltage across the load is thus the function of the mark/space ratio of the current in T which may be varied by controlling the timing of conductive periods of thyristors H1 (which turns off T) and H2 (which turns on T). Thyristors H1, H2 may be replaced by a triac or quadrac. Alternatively, if the fluctuations of current in inductor D are twice the average value, only the turn-off thyristor H1 (or a transistor) is necessary.
Patent GB-1289682-A (GB)
IPC: B41F19/06
Filed: 1968-10-15
Abstract: 1289682 Feeding webs PACK MARK Ltd 6 Oct 1969 [15 Oct 1968] 48830/68 Heading B8R A tape 6, e.g. the blocking foil in a marking machine, is intermittently indexed in increments of constant length by a take-up roller 1 driven by a mechanism including a rod 5 which rests on the tape 6 as it wound on the roller 1 and which co-operates with the slots 4, 4<SP>1</SP> provided in flanges 3, 3<SP>1</SP> associated with the roller 1. An intermittently operated drive arm 7 is provided so that the rod 5 can be pushed forward a predetermined linear amount, causing an arcuate movement of the flanges 3, 3<SP>1</SP> and thus of the roller 1, this arcuate movement becoming less as the diameter of the wound roll increases, since the rod 5 moves along the slots 4, 4<SP>1</SP>, away from the axis of rotation of the roller, as the tape builds up on the roller. Thus the linear take-up of tape remains constant throughout the indexing process. A free-wheel arrangement is provided between the flanges 3, 3<SP>1</SP> and the roller 1 so that the roller is not moved by the return stroke of the arm 7.
Patent GB-1297142-A (GB)
IPC: C08J7/12
Filed: 1969-11-21
Abstract: 1297142 Trialkyl and triaryl tin compounds UNITIKA Ltd and N SAITO 21 Nov 1969 [22 Nov 1968 10 Feb 1969] 57017/69 Heading C2J [Also in Division D1] Organotin compounds for imparting antistatic properties to fabrics (see Division D1) have the formula AOSnR 1 R 1 R 2  where R 1  and R 2  are alkyl, aryl or aralkyl and A is a residue obtained by removal of OH from a mono- or dialkyl phosphate or phosphite, a monocarboxylic or dicarboxylic acid, a dicarboxylic acid monoalkyl ester, a monosulphonic or disulphonic acid, a disulphonic acid monoalkyl ester or an alkylsulphuric acid. The compounds may be prepared by reaction between compounds AOX and YOSnR 1 R 1 R 2 , where X=H, NH 4 , or alkyl and Y=H, SnR 1 R 1 R 2  or alkanoyl, by mixing in an organic solvent at room temperature or somewhat above, optionally in contact with the fabric to be treated. The following preparations are specified in the examples: (1), (2), (5) and (9) triisobutyltin diiso-octyl phosphate from triisobutyltin hydroxide and diiso-octyl or triisooctyl phosphate, (3) and (6) triisobutyltin isooctylphthalate from triisobutyltin hydroxide and monoiso-octyl or diiso-octyl 0-phthalate, (4) and (8) triisobutyltin 4-butylbenzenesulphonate from triisobutyltin hydroxide and 4- butylbenzenesulphonic acid or its methyl ester, (7) p-toluenesulphonate from methyl p-toluenesulphonate and triphenyltin hydroxide, (10)- (13) trioctyltin naphthalene-1,5-disulphonate from diammonium naphthalene-1,5-disulphonate and bis-(trioctyltin) oxide or trioctyltin acetate, (14) bis-(trioctyltin) methylammonium succinate from bis-(trioctyltin) oxide and methylammonium succinate.
Patent GB-1303809-A (GB)
IPC: F16H39/00
Filed: 1969-04-24
Abstract: 1303809 Hydrostatic transmissions JOSEPH LUCAS (INDUSTRIES) Ltd 23 July 1970 [24 April 1969] 21012/69 Heading F2D A valve arrangement for a hydrostatic transmission including kidney ports 20, 21 in a valve block, comprises a pair of main valves 10, 11 which co-operate with a pilot valve 28 to connect a boost pump delivery line 23 to the port 20 or 21 at the lower pressure and to interconnect the ports when the pressure in either one exceeds a predetermined maximum. As shown, the valves 10, 11 include balls 16, 17 abutting the ends of, or interconnected by, a rod 40 and moved by the higher pressure in line 18 or 19 to connect the line 23 to the lower pressure line. Boost pressure is also delivered via a line 23a to a piston 26 positioning the pilot valve 28 to connect pistons 33, 34 to an exhaust 39. When the pressure in line 18 or 19 exceeds the predetermined valve, the pressure in lines 29 or 30 opens one-way valve 31 or 32 and moves valve 28 down to connect the high pressure to pistons 33, 34 which centralize the valves 10 and 11 to interconnect the high and low pressure lines 18 and 19. The pistons are also connected via a relief valve 38 to the passage 22 between valves 10 and 11 to interconnect the high and low pressure lines 18 and 19 via a second path. Again, Fig. 2 (not shown), valves (50), (51) are interconnected by a rod (68) and co-operate with a pilot relief valve (65) and a two-way valve (64) to connect boost pressure (61) to the lower pressure kidney port (76) or (77). The rod (68) is acted on differentially by the high and low pressures to open the lower pressure to boost. The valves (50), (51) have restricted through bores which allow the pressure to build up downstream of the valves. When this pressure exceeds the predetermined value, the pilot relief valve (65) opens and the pressure differential acting across valve (50) or (51) opens the valve to interconnect the kidney ports.
Patent GB-1308901-A (GB)
Title: Method of and means for the observation or monitoring of surfaces  with highly inhomogeneous luminance
IPC: G02B5/28
Filed: 1968-11-30
Abstract: 1308901 Observation of surfaces with highly inhomogeneous luminance S M AFTALION 20 Feb 1970 [30 Nov 1968] 56965/68 Heading G2J [Also in Division F4] Apparatus for observing an area with highly inhomogeneous luminance comprises a source 13 of illumination having a narrow band spectral emission, a reflector 14 by which the light is directed to cover an area including the area to be observed (e.g. a weld 12), and a filter 18 transmitting the same band of frequencies as are emitted by the source 13 and through which the area may be observed, either by eye or by a monitoring instrument. The reflector and the filter may be protected by transparent screens 15 and 20 respectively. The source 13 may be a sodium, cadmium or mercury vapour lamp, or a fluorescent light source, such as a mercury high-pressure quartz lamp exciting a layer of fluorescent powder. Other possible sources are light-emitting semi-conductor devices lasers or thermally excited metal vapour lamps. The filter  18 may be of the interference type, or a Christiansen filter may be used. The apparatus may be used in monitoring gas-shielded arc or plasma welding, or for example inside furnaces, combustion chambers or engines, or in the glass industry.
Patent GB-1320015-A (GB)
Title: Aquatic herbicide
IPC: A01N59/20
Filed: 1970-07-07
Abstract: 1320015 Destroying aquatic plants MINNESOTA MINING & MFG CO 7 July 1970 32978/70 Heading A5E A method for destroying aquatic plants comprises applying to the medium in which such plants are present a herbicidally effective amount of a copper-containing compound having a solubility based on the copper ion not greater than 1 milligram per litre of water to disperse therein and contact the plants.
Patent GB-1320890-A (GB)
Title: Treatment of carbon fibre
IPC: D01F11/14
Filed: 1970-06-25
Abstract: 1320890 Carbon fibres NATIONAL RESEARCH DEVELOPMENT CORP 25 June 1970 9867/73 Divided out of 1319955 Heading C1A Carbon fibre is treated by being heated at a temperature above 800‹ C. in an atmosphere comprising an inert carrier gas and a halogenated hydrocarbon. The halogenated hydrocarbon may be carbon tetrachloride or methylene dichloride. The inert carrier gas is preferably oxygen-free nitrogen. The fibre may be treated by being drawn continuously through a furnace containing the atmosphere. The preferred treatment temperature is 1500‹ C. and the process may be carried out at a pressure above ambient atmospheric pressure. It is preferred that the relationship between the length of the furnace and the draw rate of the fibre is such that the fibre is in the central region of the furnace at a temperature of 1500‹ C. for at least four minutes. The process is exemplified as being applied to carbon fibres derived from p.a.n. but fibres from aliphatic nylon, polyvinyl alcohol, polyvinylidene chloride, aromatic polyester, aromatic polyamide, and cellulose materials may be used.
Patent GB-1336601-A (GB)
Title: Sheathed electrodes for electric storage batteries
IPC: H01M50/491
Filed: 1970-01-20
Abstract: 1336601 Storage battery separators ELECTRIC POWER STORAGE Ltd 19 Jan 1971 [20 Jan 1970 7 Oct 1970] 2643/70 and 47703/70 Heading H1B [Also in Division B2] An electrode 10 for a lead-acid battery is formed with a porous separator envelope 31 of sintered plastics material closed at its bottom and side edges but open at the top to permit gas venting. Vertical ribs 33 on the inner surface of the envelope form passages 32 which facilitate gas venting and access of electrolyte to the electrode. In one method of forming the separator envelope on the electrode the latter, shown in chain-line in Fig. 1, is held between two metal combs 12, 13, each having nine prongs coated with P.T.F.E., the upper ends 25 of the combs being mounted on plates 17, 18 biased by springs surrounding bolts 19, 20 so that the combs pivot bosses 22, 23, 24 to grip the electrode. The pasted electrode mounted between the combs is heated to 240 C. and lowered into a fluidized bed of P.V.C. powder to the level 25 and held there for a predetermined time to obtain the desired coating thickness of P.V.C. On removal from the bed the assembly is heated at 240 C. to sinter the P.V.C. and the combs 12, 13 are withdrawn to leave the electrode 10 surrounded by the P.V.C. envelope 31. In a modification, flat fibrous separator pads are placed on the electrode surfaces before the envelope is formed thereon. In another method of forming the separator envelope, the combs 12, 13 are replaced by thin plates having vertical grooves, the plates being placed against the electrode surfaces so that the grooves face outwardly.
Patent GB-1336988-A (GB)
Title: Mechanical grab bucket
IPC: B66C3/02
Filed: 1969-09-16
Abstract: 1336988 Grab excavators M J WAY 14 Dec 1970 [16 Sept 1969] 45536/69 Heading E1F A mechanical grab bucket is formed of material having a mesh-like structure. As shown, panels 12 of square or diagonal mesh are bolted to a main frame 10. The mesh may be of wire or strip.
Patent GB-1337545-A (GB)
Title: Control valves for fluid pressure braking systems
IPC: B60T13/14
Filed: 1970-12-16
Abstract: 1337545 Dual braking systems AUTOMOTIVE PRODUCTS CO Ltd 16 Dec 1970 [5 Jan 1970] 469/70 Heading F2E In a vehicle dual braking system in which full braking power is provided in one circuit if the pressure in the other fails, fluid is passed from a reservoir 10 to two accumulators 13, 14, each serving one circuit, by a pump 11 and a valve 15 controls the passage of fluid to motor cylinders 22, 17 on the same brakes and motor 23 on other brakes of the vehicle. As shown in Fig. 2, the valve 15 consists of plungers 34 movable in sleeves 33, having ports 37 communicating via a recess 32 with reservoir 10, ports 39, which in the case of one sleeve 33 are connected to motor cylinder 22, 23 and in the other case to motor cylinder 17, and ports 41 connected respectively to accumulators 13, 14. Each plunger 34 is provided with grooves 42 which bridge ports 3a with either ports 37 or 41 according to the plunger position. The brakes are actuated by movement of a rod 54 which through the central portion 53 of a resilient member 46 causes a beam 51 to move plungers 34 through a blade spring 52 to communicate ports 39, 41. If pressure fails in either circuit the reaction force R1, acting on the end of the plunger acting in a bore formed in a plug 35, by fluid passage through an axial bore in the plunger, disappears, causing the plunger to move under the bias of a spring 35 to close port 41. A reaction force R2 on the other plunger causes the beam 51 to pivot about an abutment 55. The reaction force on the plunger 34 and the brake applying force in the operative circuit is greater than R1 and the effort to produce the same degree of braking is less than if the actuating member 54 were acting directly on the plunger of the operative system. In a further embodiment, Fig. 4 (not shown), the valve is provided with two groups of ports, the group (55) nearest recess 32 is connected to the motor cylinders and the other group (56) to the pressure source. The resilient member engages the actuating member at two points so that when pressure in one circuit fails the beam does not tilt and there is no loss of pedal travel. A levelling valve 24 is provided in a pipeline 21 to regulate pressure which can be exerted in the motor cylinders in accordance with wheel load, and to control the supply of liquid to struts 25 maintaining the vehicle body at a constant level regardless of loading changes.
Patent GB-1337944-A (GB)
Title: Electric hand tool
IPC: B23B45/00
Filed: 1972-09-27
Abstract: 1337944 Portable electric tools ROBERT BOSCH GmbH 27 Sept 1972 44576/72 Headings B3C and B3N An electric hand tool has a motor housing 1, a gear housing 4, an electric motor 6 with a drive shaft 9 with gear-wheels 12 and 13, a tool spindle 16, two gear-wheels 25, 26 arranged thereon and meshing with the gear-wheels 12 and 13 and means for selectively connecting selectively one of the gear-wheels 25, 26 on the tool spindle with the tool spindle to transmit drive thereto. Drive shaft 9 has its free end journalled in the gear housing and forms a third bearing with radial clearance relative to the bearing bore of the journal. The tool in Fig. 1 has driving pins 24 transversely of the tool spindle. The gear-wheels 25, 26 have two opposite grooves 27 and enlarged cut-outs at each end. These gear-wheels can be axially moved by handle 9 and U-shaped plastics member 28 so that one of the gear-wheels can be selectively drivingly coupled with the tool spindle. In the embodiment of Fig. 2 the gear-wheels 125, 126 are axially located. Clutch discs 154, 155 are axially movable to selectively engage one of the gear-wheels by clutch cones 155. The clutch discs are drivingly connected to the tool spindle and the clutch cones on the two discs have differing apex angles.
Patent GB-1342337-A (GB)
Title: Dispensing nozzle
IPC: F16K21/20
Filed: 1972-08-02
Abstract: 1342337 Automatic dispensing nozzles TEXACO DEVELOPMENT CORP 2 Aug 1972 36061/72 Heading G3P [Also in Division F2] A dispensing nozzle for filling a fuel tank with fuel comprises a main valve member 15 which is moved upwardly by a manual lever 16 to the open position and is forced downwardly by a spring 48 when the fulcrum 18 of the lever is unlatched in response to a "tank filled" condition, a secondary valve member 40 also moved upwardly by the lever 16 but urged downwardly by a spring 44 independently of the main valve in response to a fuel pressure surge at the nozzle vent (24), Fig. 1, (not shown), and a low-flow rate valve 64 urged open when the secondary valve closes so that fuel by-passes the secondary valve. In operation fuel flows from an inlet 14 through valves 40, 15 and past valve 80 into a fuel tank. The first fuel surge registered at vent (24) causes a reduction in pressure in chamber 62, a consequential upward movement of a diaphragm 58 and rod 54 so that the secondary valve 40 is unlatched and moves to the closed position. The increase in fuel pressure upstream is applied to diaphragm 68 via passage 78 to open the low flow rate valve 64 by a part 106 contacting the stem 109 of the valve. In addition downward movement of the secondary valve causes a rod 94 to rotate and so open a valve 87, Fig. 8, which allows the next fuel surge signal to be applied to a diaphragm 28 controlling the main valve 15. A time delay of between 1 and 4 seconds is arranged between the secondary valve closing and the low flow rate valve opening.
Patent GB-1347425-A (GB)
Title: Alkyl 1-n-substituted thiocarbamoyl-2-benzimidazolecarbamate  derivatives and their use as pesticides
IPC: C07D235/32
Filed: 1972-05-15
Abstract: 1347425 Alkyl 1-(N-substituted thiocarbamoyl)-2-benzimidazole carbamates E I DU PONT DE NEMOURS & CO 15 May 1972 22636/72 Heading C2C Novel alkyl 1-(N-substituted thiocarbamoyl)- 2-benzimidazole carbamate derivatives having the general formula wherein R 1  is methyl, ethyl, isopropyl or sec.- butyl; X is hydrogen, halogen, methyl, methoxy or nitro; A is Y is oxygen or sulphur; R 2  is (C 1- C 12 ) alkyl, cyclohexyl, phenyl, benzyl, allyl or propargyl; R 3  is (C 1 -C 12 ) alkyl, cyclohexyl, phenyl or benzyl; R 4  is (C 1- C 12 ) alkyl optionally substituted by 1 to 5 chlorine atoms, or a radical of the formula wherein B is methyl, methoxy, bromine, chlorine, nitro or hydrogen and E is hydrogen or chlorine, provided that E is hydrogen when B is methyl, methoxy, bromine or nitro, are prepared by reacting an alkyl 2-benzimidazolecarbamate with an N-substituted isothiocyanate, preferably in the presence of a tertiary amine base as catalyst. The novel compounds possess pesticidal properties.
Patent GB-1351758-A (GB)
Title: Anti-skid braking systems
IPC: B60T8/58
Filed: 1970-09-09
Abstract: 1351758 Antiskid braking systems GIRLING Ltd 23 July 1971 [9 Sept 1970] 43115/70 Heading F2F In antiskid braking system, generators 11, 12 on wheels of a vehicle produce alternating signals which are converted at 13, 14 and fed to a switch 15 which selects the signal from the slowest rotating wheel and passes it to a capacitor 16, which together with a transistor 23, differentiates the signal to give an output representing deceleration of the wheel. Transistor 31 is turned on by the output signal from the differentiating circuit and current then passes by way of a diode 47 to the base of a transistor 45 forming with a further transistor 49 an amplifier. The amplified current controls a valve 52 for modifying the braking pressure. When transistor 31 conducts due to wheel deceleration it also turns on a transistor 34 which charges a capacitor 36 discharging permanently through a resistor 38. If the brakes are applied on a road surface with a high coefficient of friction the deceleration is not too rapid and capacitor 36 charges to a relatively low voltage. The braking pressure is then modified by the current flowing through diode 47 so that the deceleration becomes less rapid but capacitor 36 discharges through resistor 38 and plays no part in the operation. On a surface with a low coefficient of friction where deceleration is more rapid capacitor 36 is charged to a higher voltage. The braking pressure is modified as previously but when the wheel reaccelerates capacitor 36 will not have had time to discharge as on a good road surface so that transistor 37 conducts and current flows through diode 48 to transistor 45. This current is greater than that flowing through diode 47 but amplifier 45, 49 responds as if a deceleration signal was received and braking pressure will continue to be relieved.