baber/WOPTO huggingface dataset:
Patent GB-1315089-A (GB)
Title: Oven control system including single dial control
IPC: H05B1/02
Filed: 1971-11-15
Abstract: 1315089 Thermal switches; cam-operated switches WESTINGHOXJSE ELECTRIC CORP 15 Nov 1971 [31 Dec 1970] 52880/71 Heading H1N [Also in Division H2] Means for adjusting the operating temperature of a snap-action thermostat for an oven with cooking and heat-cleaning, comprises a manually rotatable structure 30, 16 with a larger range of angular adjustment for cooking than for heat-cleaning, means 26 movable to adjust the operating temperature, and means 31, 32 for translating the angular adjustment of the rotatable structure into movement of the operating temperature adjusting means 26, which movement, for a given angular adjustment of the rotatable structure, is larger in the heat cleaning range than in the cooking range. As shown, pressure wafer 27 connected by capillary tube 28 to an oven temperature sensitive bulb (not shown) bears against spring arm 20 bearing against the casing at its lower end 21 and against shaft 26 to snap over spring 23 and move bridging contact 18 to open contacts 8c, 2b (and also contacts 9c, 1b, Fig. 3 (not shown), to open the circuit to the heating elements. Spring 23 is adjusted by screw 25. Rotation of shaft 30 coupled to a temperature indicating dial, Fig. 11 (not shown), rotates cup-shaped member 16 which rotates cam follower 31 having two arms 37a, 38a, the end of arm 38a being bent to engage the cam surface on the end of fixed cam 32 so that as cam follower 31 is rotated it moves axially under the pressure of spring arm 20 to move shaft 26 adjustably fixed to cam follower 31, to adjust the temperature operating point at which spring arm 20 snaps over. The gradient of the cam surface on the end of cam 32 is greater, Fig. 10 (not shown), in the heat cleaning range than in the cooking range so that for a given angular movement of shaft 30 the axial movement of cam follower 31 and shaft 26 is greater during the heat-cleaning range than during the cooking range. The final heat-cleaning temperature can be adjusted by turning setscrew 45 in cam 32 against which cam follower 31 bears at the end of its travel. The contacts 8c, 9c are connected to movable contact blades 8, 9, Fig. 1, in the upper compartment 12 which are moved by cam surfaces on the outer periphery of member 16 to co-operate with fixed contacts 4b, 6b, 7b to vary the circuit connections to the heating elements in the oven as shaft 30 is rotated. A circuit diagram, Fig. 12 (not shown), is given for the connections to the various heating elements.
Patent GB-1218800-A (GB)
Title: Pedal controls for electrically driven vehicles
Inventor: ALLOTT ERIC
IPC: B60K26/02
Filed: 1968-11-08
Abstract: 1,218,800. Pedal arrangements in vehicles. COVENTRY CLIMAX ENGINES Ltd. 3 Nov., 1969 [8 Nov., 1968], No. 53109/68. Heading B7H. The forward and reverse pedals 1, 3 of an electrically driven vehicle are separately pivotally mounted about a common axis, the one on a shaft 2 coupled to a sleeve 6 carrying a lug 12 which when actuated permits operation of switch 15 determining the forward motion of the vehicle, and the other on a sleeve 4 rotatable about the shaft 2 and carrying a lug 8 which when actuated permits operation of the switch 11 determining the reverse motion of the vehicle. Further depression of either pedal causes an arm 16 or 18 on the associated sleeve 4, 6 to pivot a segment gear 17 which in turn rotates gear 19, fork 21 coupled thereto, pin 22, arm 23 and shaft 24 of a potentiometer controlling the speed of the vehicle in either direction. Springs 25 ... 27 return the mechanism to their initial setting upon the pedals being released.
Patent GB-1302785-A (GB)
IPC: G01T5/10
Filed: 1970-11-11
Abstract: 1302785 Detecting neutrons AGFAGEVAERT AG 11 Nov 1970 [14 Nov 1969] 53577/70 Heading G6P [Also in Division C1] A silver halide monocrystal for detecting the tracks of ionizing particles contains cadmium and up to 100 p.p.m. lead as doping agents. Preferred ranges of dopants are 100-5000 p.p.m. Cd and 5-20 p.p.m. Pb. The preferred halide is the chloride. The detector may be prepared by adding solutions of cadmium chloride and lead chloride to pulverulent silver chloride, drying, melting, and cooling the mixture to produce a polycrystalline platelet which is rendered monocrystalline by a melting process.
Patent GB-1374986-A (GB)
Title: Coating wet surfaces or surfaces immersed in water
IPC: C09D163/00
Filed: 1971-11-18
Abstract: 1374986 Coating composition PVO INTERNATIONAL Inc 18 Nov 1971 [28 June 1971 8 Nov 1971] 53679/71 Heading B2E [Also in Division C3] Wet surfaces are coated with a coating composition comprising (A) an epoxy resin containing only C, H, O and optionally Cl atoms, (B) a stoichiometric amount of an amine curing agent, which is water insoluble and water insensitive of general formula RNHCH 2 CH 2 NH 2  in which R is an ether radical which contains an at least C 8  aliphatic hydrocarbon radical, or as curing agent, an adduct of an epoxy resin with such an amine or a unit corresponding amine in which R is an at least C 8  aliphatic hydrocarbon radical. (A) may be a diglycidyl ether of bisphenol A. The curing agent may be C 13 H 25 O(CH 2 ) 3 NH (CH 2 ) 3 NH or an adduct of 5 parts of a diamine C 18 H 35 NH(CH 2 ) 3 NH 2  and 1 part of a glycydyl ether of bisphenol A. Conventional adjuvants and pigments may be present, examples being ground silica, asbestos fibre, iron oxide, CaCO 3 , TiO 2 . Surfaces to be coated include iron, steel, wood, masonary and walls, floors and ceilings of concrete or brick. Ships bottoms and marine pilings are mentioned as being coated underwater. The coating is preferably applied as an aqueous emulsion, e.g. by brushing or paint roller.
Patent GB-539455-A (GB)
Abstract: 539,455. Refining hydrocarbons. SOUTH METROPOLITAN GAS CO., BISHOP, P. C., PROCTOR, R. A., and TWIST, R. F. Feb. 5, 1940, No. 2233. [Class 91] Liquid hydrocarbons extracted from coal gas are refined by a process which comprises adding to the hydrocarbons as soon as possible after their recovery from coal gas a small proportion of an inhibitor consisting of an aromatic amine or phenolic or nitro compound, subsequently removing by distillation the volatile constituents boiling below 80‹C., and washing the residue with sulphuric acid. The process of inhibiting gum formation is described in Specification 289,347, [Class 91], and the compounds described in that Specification are used in the process of the present invention, in amounts which are of the order of 0.05 per cent. In examples (1) Coal gas benzole is treated with 0.03 per cent. cresol, stored for 6 weeks, the low boiling fractions removed and the residue then stirred with 1 per cent. sulphuric acid. (2) Coal gas benzole was treated in example (1), the period of standing being 3 days.
Patent GB-542613-A (GB)
Abstract: 542,613. Gyroscopic apparatus; bearings. SPERRY GYROSCOPE CO., Inc. Jan. 22, 1940, No. 1325. Convention date, Jan. 27, 1939. [Class 97 (iii)] [Also in Group XXXIV] The shaft of the rotor of an instrument such as a gyroscope is formed in two axially separated portions, and means carried by the rotor axially positions at least one of the parts of the shaft, in response to temperature changes, for the purpose of maintaining equality between the spacing of the bearing portions of the shaft and the spacing of the bearing supports therefor. As shown, a hardened steel shaft 4 in a brass &c. rotor 1 is formed in portions each having a tapered bearing engaging balls 5 in a bearing 6 carried by a screwed thimble 9 in a bearing ring 7 of aluminium alloy. Conical flexible plates 10 are peripherally attached to the rotor, and are formed with hubs 14 free to move axially in a hole in the rotor and rigidly carrying the portions of the shaft. Axial movements of the portions of the shaft are caused by flexure of the plates 10 due to temperature changes of the dimensions of the rotor, and are such that the spacing of the tapered ends is maintained equal to the temperature-changed separation of the bearings 6. Symmetry causes the mass centre of the rotor to remain coincident with the bearing axis of the ring 7. Specification 425,954, [Group XXXIV], is referred to.
Patent GB-1185238-A (GB)
Title: Use of 2-(2'-Hydroxyphenyl)-Oxazole as a Disinfectant
IPC: D06M16/00
Filed: 1967-11-29
Abstract: 1,185,238. Compositions comprising oxazole derivatives. CIBA Ltd. 29 Nov., 1967 [30 Nov., 1966], No. 54406/67. Heading A5E. [Also in Divisions C2 and C5] Disinfectant compositions comprise as active ingredient at least one 2-(2'-hydroxyphenyl oxazole of the general formula or an alkali metal salt thereof, wherein R is an aromatic ring system containing at most 2 six-membered rings and X represents a benzene residue which is substituted by a hydroxyl group in the ortho-position to the bond with the oxazole ring, together with a carrier or diluent, and if the carrier or diluent is a solvent, a surface active agent. A large number of industrial uses are specified, including an example relating to impregnating a woollen fabric with the composition.
Patent GB-1207274-A (GB)
Title: Improvements in and relating to pneumatic tyres
IPC: B60C11/01
Filed: 1968-11-15
Abstract: 1,207,274. Pneumatic tyres. MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS. MICHELIN). 15 Nov., 1968 [15 Nov., 1967], No. 54407/68. Heading B7C. An off-the-road pneumatic tyre has tread bars 6 extending from the shoulders to the region of the mid-circumferential plane, the bars each having a re-entrant leading face 10 and being of substantially the same thickness at all points except at the shoulders where each trailing face slopes radially inwards and rearwards at 11 to reduce the groove width between adjacent bars. The bars are staggered in two circumferential rows as shown. Leg 8 of each bar makes an angle of 45 degrees  25% to the mid-circumferential plane, while leg 9 makes an angle of 65 degrees  25% to said plane.
Patent GB-1273405-A (GB)
Title: Improvements relating to a method of detecting and/or recording electromagnetic radiation
Inventor: CLARK CECIL ARTHUR
IPC: G03G5/16
Filed: 1969-11-07
Abstract: 1,273,405. Magnetic materials. PHILIPS GLOEILAMPENFABRIEKEN N.V. 7 Nov., 1969, No. 54648/69. Heading H1H. [Also in Division C1] A semi-conductive material for detecting and/or recording electromagnetic radiation has a magnetic permeability greater than 12, below the Curie point, and has the crystalline spinel structure MCr 2 S 4  where m is one or more of Cd, Zn, Hg, Mn, Fe<SP>II</SP>, Co, Mg, Ni, Pb, Cu<SP>I</SP>+Ga<SP>III</SP>/2, Cu<SP>I</SP>+In<SP>III</SP>/2, Cu<SP>I</SP>+Fe<SP>III</SP>/2, Ag<SP>I</SP>+In<SP>III</SP>/2 and Ag<SP>I</SP>+Fe<SP>III</SP>/2. The material may contain up to 10 mol. per cent of an N- or P-type semiconductor dope, e.g. In, Ga, Cu or Ag. Compounds of formula MCr 2 S 4  may be made semiconductive without use of a dope by heating to introduce S-vacancies (resulting in N-type) or by heating in a S-rich atmosphere to introduce metal vacancies (resulting in P-type). In an example, a single crystal of P-type CaCr 2 S 4  is exposed to light at 4À2‹ and 77‹ K. to produce permanent and temporary changes in magnetic permeability and coercive force.
Patent GB-1286548-A (GB)
Title: A device for a two-for-one twisting machine for providing the spindles with supply bobbins
IPC: D01H9/00
Filed: 1969-11-18
Abstract: 1286548 Supplying bobbins; donning PALITEX PROJECT CO GmbH 18 Nov 1969 [6 Dec 1968] 56273/69 Headings DID and D1F In a device on a twisting machine, a chain or like conveyor 15 carries supply bobbins 17 on bobbin receivers 16 spaced at spindle pitch on the chain, the chain being carried in a guide rail 14 extending above the spindles. The chain or like member 15 can be inserted in the guide from one end of the machine and can be taken out in either direction. The bobbin receivers comprise mandrels onto which the bobbins can be slipped. Full bobbins are mounted on the mandrels while the chain is clear of the machine, e.g. in a spiral guide rail 48 on a movable trolley, in guide rails 54 beneath the machine or in guide rails mounted above head level. The chain with full bobbins is guided, e.g. from the guide rail 48 via intermediate guide portions, e.g. 45 to a chain wheel 46 which is rotated to feed the chain into rail 14. The drive is stopped when full bobbins 17 are positioned over each spindle in the position shown in Fig. 1. The guide rail 14 is then rotated about a shaft 19 on which it is mounted to bring the bobbins into the position shown in dash-dot lines in Fig. 1. The member 20 which carries the shaft 19 is then lowered to slip the bobbin onto the spindle. A shaft 29 is then rotated to move a shaft 28 which has at its end a pusher 27 and so depress a spring urged member within the mandrel and allow the bobbin to fall from the mandrel and onto the spindle. The chain is then removed for reloading. In an alternative form, Fig. 3, not shown, the chain guide rail 14 is mounted on a parallel arm arrangement which moves it over the spindles. Before donning, the guide eye 8 has to be retracted and the thread guide tube at the top of the spindle removed. The empty package tube is then removed either by hand or by empty mandrels on a chain.
Patent GB-1248749-A (GB)
Title: Flat-bed letterpress printing machines
Inventor: STERNBERG HUBERT
IPC: F16N39/00
Filed: 1968-11-27
Abstract: 1,248,749. Printing apparatus. HEIDELBERGER DRUCKMASCHINEN A.G. 27 Nov., 1968 [30 March, 1968], No. 56315/68. Heading B6C. [Also in Divisions F2 and G3] The temperature of reciprocating forme bed 2 is controlled by feeding cooled or heated lubricant to slideway 5 through pipe 6, so that as bed 2 moves over slideway 5 lubricant on the slideway cools or heats the bed as required. Bed 2 passes first under inking rollers 3 and second under impression cylinder 4 as it moves. The lubricant is passed round a closed circuit, and is brought to a desired temperature by a cooler 7 or heat exchanger 8. A separate circulation of non-lubricating coolant through passages in the slideway base and a separate cooler or heat exchanger may supplement the cooling by the lubricant. Either the lubricant or the separate coolant may have its temperature monitored as it leaves the slideway or the slideway base, and a signal derived in consequence may be made to control the respective coolers and heat exchangers.
Patent GB-1450447-A (GB)
Title: Electrical machines
IPC: H02K5/10
Filed: 1973-12-06
Abstract: 1450447 Sealing electric machine housings ROBERT BOSCH GmbH 6 Dec 1973 [8 Dec 1972] 56475/73 Heading H2A An electric machine housing has a resilient sealing jacket arranged to fit closely over a portion of the housing having an orifice, air vent or joint therein, the jacket being held in place by its own inherent resilience. In the vehicle headlamp wiper-drive shown, a motor 11 is fixed to a housing 13 of a transmission 12 by a set of bolts 14 and a set of nuts 16 which engage projections 18 and edges 19 of apertures 17 in the housing, and a resilient jacket comprising a ring 20 and a cap 21 is stretched over the housing to provide a seal at the apertures 17. The cap is provided with an opening 24 to allow access to tapped mounting holes 23 in the housing, and to allow a drive shaft 22 to protrude, and it also has an opening 25 for a cable 26. Prior to fitting in place, the cap 21 has a slit 27 extending from opening 25 to opening 24 in order to facilitate the positioning of the jacket on the drive unit, the slit being subsequently welded when the jacket is correctly located. In a fan motor unit (Fig. 4, not shown) a resilient jacket (56) seals a joint between two parts (41, 53) of an earthed housing of the unit, and as a consequence cooling air which is drawn in at an inlet (54) is thereby able to escape only via an outlet (55), none leaking wastefully away without having cooled the motor. In each case the jacket may be of plastomer plastics material.
Patent GB-1171819-A (GB)
Title: Thermocouple.
Inventor: ZYSK EDWARD DENNIS
IPC: H01L35/20
Filed: 1967-12-12
Abstract: 1,171,819. Thermocouples. ENGELHARD MINERALS & CHEMICALS CORP. 12 Dec., 1967, No.56517/67. Heading H1K. [Also in Division C7] A thermocouple for the measurement of high temperature has a positive leg consisting of 96-98% tungsten and 2-4% rhenium and a negative leg of 74-80% tungsten, 26-20% rhenium, a lead wire consisting of 95-97% nickel and 5-3% tungsten connected to the negative leg and a lead wire consisting of 9-97À5% nickel, 1À5-2À2% chromium, 0À7- 1À1% aluminium, 0À3-1% silicon and 0-1À2% tungsten connected to the positive leg. The arrangement is so constructed that when the temperature to be measured is up to 2700 C. the temperature at the junctions between the thermocouple legs and the compensating leads lies in the range 0-400 C. The quoted percentage compositions of the thermocouple legs, which are by weight, exclude traces of thorium, oxide, potassium, aluminium and silicon which may be added to the alloys to control grain growth. The thermocouple is preferably mounted in vacuum or in an atmosphere of hydrogen, helium, argon or a nitrogen-hydrogen mixture.
Patent GB-1201780-A (GB)
Title: Aspiration device, especially for use in dental practice
Inventor: SVARD ALF GEORG
IPC: A61C17/14
Filed: 1967-12-13
Abstract: 1,201,780. Dental aspiration apparatus. A. G. SVARD. 13 Dec., 1967 [13 Dec., 1966], No. 56536/67. Heading A5R. Aspiration apparatus for use in dental practice, comprises a pipeline system 2 communicating at one end with a motor driven fan assembly and at the other end with atmosphere, there being means 4 for receiving liquid drawn through the pipeline system by the fan assembly, an aspirating mouthpiece (9, 10, or 11), and a conduit connecting the mouthpiece to the pipeline system, there being a valve in the conduit between the mouthpiece and the pipeline system for establishing and interrupting communication between the mouthpiece and the system. As shown, a dental operating station is provided with three mouthpieces 9, 10, 11 for removing saliva, the mouthpiece 11 comprising a funnel device used instead of the normal spittoon. The flexible hoses 8 from the mouthpieces are connected to the pipe line system via a connector housing (Figure 2, not shown) which includes an on-off valve (5) and a removable filter (6), and, as in Figure 4 (not shown), at the dental operating station, the three mouthpieces 9, 10, 11 may be extendable on their hoses 8 from a housing pivotally attached a dentist's chair, the mouthpieces 9, 10 being mounted on a telescopic bracket member (14) which is pivotally attached to the housing. It is stated that a guide member (19) within the housing is shaped such that the hoses 8 follow the curve of the guide member under their own weight. The on-off valves (5) may be caused to operate by the movement of the respective mouthpieces from the bracket member.
Patent GB-568995-A (GB)
Abstract: 568,995. Franking-machines. AKTIEBOLAGET H. SCHMIDT. March 24, 1944, No. 5513. Convention date, March 23. 1943. [Class 100 (ii)] A postal franking-machine of the kind in which rotation of the main shaft 1 operates franking printing-mechanism 2 and also operates mechanism for printing the total value and number of the franking operations upon a prepaid control slip supplied by the Post Office and also a registering device is operated to register the number of times the machine is unlocked to permit of a series of stampings, is constructed so as to print on a separate slip 11 a register of the state of these two registering device before and after the machine is unlocked and then looked, e.g. at the beginning and end of a day. In this way a check can be taken by comparing the slip 11 with the number of letters &c. handed in for posting. The slip 11 is placed on s support 10 and registered against the bottom ledge thereof which is kept in contact with the lower edge 25a of a lever 25 by means of a spring 27 which can yield to allow the support 10 to be lowered to the position indicated by dotted lines after an impression has been taken on slip 11 of the registering devices 30 to give a record of the state of these at the commencement of a series of frankings 11. To start the machine a lever 13 is moved clockwise to rotate a disc 14 fitted with a pair of pawls 15 connected by a spring 16 and normally restrained by pins 17. The front pin 15 actuates an impression. hammer 19 against the action of a spring 22 to make an impression through an ink ribbon 32 from the registering wheels 30, and then the lever 25 is actuated to depress the support 10 which causes a pin 8 to actuate a stop 5 so as to release the driving-shaft of the franking- machine. At the end of the operations the lever 13 is returned to its original position to lock the machine and the second pawl 15 then acts upon the printing-hammer to cause a second record to be taken of the state of the wheels 30. The support 10 is automatically returned on the return of the lever 13. In a modification a series of cams operated by the lever 13 replaces the pin-and-pawl mechanism described. Specification 406,654 is referred to.
Patent GB-1329430-A (GB)
Title: Apparatus for detecting fire or flames
IPC: G08B17/12
Filed: 1970-12-03
Abstract: 1329430 Fire alarms CERBERUS AG 3 Dec 1970 [3 Dec 1969] 57473/70 Heading G4N [Also in Divisions G1 and H1] A fire alarm is generated by the outputs from two photo electric devices of differing spectral sensitivities differing in at least one polarity from a predetermined value by not less than a predetermined amount. The devices may be photo-voltaic or photo-conductive and may be connected in series, parallel, or parallel relationship in circuits including ballast resistors. The alarm signal may be generated only in response to flicker frequencies. Flicker frequencies in the difference of the outputs from red and blue responsive photo cells 2, 3 are applied to an amplitude discriminator 7 to operate an alarm and/or optical indicator. In Fig. 2 blue and red photoconductive elements are connected to ballast resistor 14 and an analyser 10. In further embodiments two reflection filters with different spectral reflection characteristics (29, 30, Fig. 9, not shown) or a dichroic filter (31, Fig. 10, not shown) are employed and arranged so that each detector receives light from a different'part of the spectrum. Alternatively the photo-electric elements may be in the form of photoresistances on a common base material (21, Fig. 7, not shown) and covered by red or blue optical filters. The effect of unwanted light, such as sunlight, may be eliminated by employing a mechanically movable screening device (26, Fig. 8, not shown) in such a way that one or both of the photoelectric devices may be partially screened. In both cases the effect of the unwanted light is eliminated by making the outputs of the photoelectric devices equal. Thus light from any other source will create an unequal signal. In a further embodiment (Fig. 12, not shown) a number of pairs of photoelectric devices of differing spectral sensitivities are connected in series and arranged so that each pair receives light from a different direction. In another embodiment an integrator is used to eliminate short duration disturbances since the alarm will then only be set off when a predetermined value is exceeded for a specified length of time. Furthermore a locking or latching circuit is included so that once the alarm is set off it is automatically held in an "on" condition and can be re-set from a central station. The apparatus can be tested by emitting a signal from the central station to produce alarm stimulation in the device so that the device is enabled to emit an alarm signal that can be registered in the central station.
Patent GB-1255639-A (GB)
Title: Warp knit fabric and method of producing the same
IPC: D04B21/00
Filed: 1968-12-04
Abstract: 1,255,639. Knitting. KARL MAYER TEXTIL-MASCHINENFABRIK G.m.b.H. 4 Dec., 1968 [3 Jan., 1968], No. 57617/68. Addition to 1,215,811. Heading D1K. The second guide bar makes an underlap over at least three wales such that the weft yarn of the fabric described in the parent Specification is engaged in the end wales but lies on the intermediate wales without being trapped.