baber/WOPTO huggingface dataset:
Patent GB-1173097-A (GB)
Title: A Method for Controlling the Surface Potential of a Semiconductor
IPC: H01L21/316
Filed: 1967-12-07
Abstract: 1,173,097. Treatment of semi-conductors. INTERNATIONAL BUSINESS MACHINES CORP. 7 Dec., 1967 [13 Jan., 1967], No. 55704/67. Heading H1K. [Also in Division C1] The surface potential induced on a semiconductor body is controlled by depositing thereon a plurality of metal oxides in a non- oxidizing atmosphere. The oxides may be deposited as a homogeneous mixture or as a plurality of sequentially deposited layers partially mixed at their interface by a subsequent heating stage. Deposition &c. is effected at a temperature such that diffusion of the constituents of the metal oxides into the semi-conductor body does not occur. In the embodiment nitrogen (other gases are mentioned) from a source 5 is used to provide the non-oxidizing atmosphere and to act as a carrier by bubbling through liquid chambers 13, 19 which contain organic sources of aluminium oxide and silicon dioxide respectively. The vapours of these source compounds mix with further nitrogen in a furnace tube 1 and decompose in the vicinity of a wafer 4, e.g. of Ge, Si or GaAs, to deposit thereon a mixed oxide layer. Boron methoxide may also be provided as a source of boron oxide in addition to the illustrated sources or as a replacement for the SiO 2  source. Variation of the nitrogen flow rates through the various liquid sources provides control of the deposited oxide constituency, and hence of the induced surface potential. The same apparatus may also be used for sequential deposition. It is stated that the introduction of a trace of Al 2 O 3  during the SiO 2  deposition results in the production of pure SiO 2  due to the catalytic action of the Al 2 O 3 . Other deposition techniques involving non-oxidizing atmospheres which may be used include R.F. or D.C. sputtering, evaporation, vacuum deposition or ion beam deposition. The invention may be applied to NPN fieldeffect transistors which, by control of the induced surface potential in the channel region, can be made to be normally non-conducting without the need for external biasing. MOS capacitative methods are used to measure the surface potential in terms of surface charge density.
Patent GB-1293338-A (GB)
Title: Sealing strip for windows or doors, more particularly in motor vehicles
IPC: B60J10/32
Filed: 1970-11-24
Abstract: 1293338 Seal strips DRAFTEX GmbH 24 Nov 1970 [24 Aug 1970] 55876/70 Heading EIJ A sealing strip comprises a portion 1 of U-shaped cross-section, and a lip 2 connected to the web of the portion and being of softer material than the portion. The portion of solid rubber or plastics with a metal insert 3 and is retained on a flange by ribs 6. Lip 2 is welded to projection 4 and is of cellular rubber. (For Figure see next page)
Patent GB-1458536-A (GB)
Title: Photographic process
IPC: G03C5/40
Filed: 1973-12-04
Abstract: 1458536 Photographic process for making tanned colloid images EASTMAN KODAK CO 4 Dec 1973 [4 Dec 1972] 56198/73 Heading G2C A photographic material having an unhardened hydrophilic colloid layer and a layer containing an imagewise distribution of a catalytic metal, e.g. a developed silver image, is tanned imagewise by contact with a hexacoordinated trivalent cobalt cationic complex salt at a pH of at least 10, whereby the colloid layer is hardened imagewise by the direct reaction of the complex salt with said colloid in the presence of the catalytic metal image. The imagewise hardened image may be used directly as a lithographic printing plate or the lesser hardened areas may be washed off. The material containing an unhardened colloid layer and a silver image may be made by development of an exposed but unhardened silver halide material, which may contain an incorporated developing agent and the cobalt complex salt, to form a silver or silver plus dye image which may have a low silver coverage. Cobalt complex salts preferred are cobaltic hexammine chloride and acetate. The imagewise distribution of catalytic metal may be an image of gold, copper, iron, tin, mercury or palladium formed by exposure and development of suitable salts, or a metal image formed by physically developing photo-conductor materials e.g. of titanium dioxide.
Patent GB-1200730-A (GB)
Title: Process for the production of olefinic compounds
Inventor: LLOYD JOHN EDWARD
IPC: C07C17/093
Filed: 1966-12-15
Abstract: 1,200,730. Preparation of olefinic compounds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Dec., 1967 [15 Dec., 1966], No. 56224/86. Heading C2C. Olefinic compounds are prepared by contacting a compound of formula R 1 R 2 C=C(R 3 )OCOR 6  or R 1 R 2 C=C(R 3 )-CR 4 R 5 -OCOR 6 , in which R 1 , R 2 , R 3 , R 4  and R 5  are hydrogen or halogen atoms or organic substituents and R 6  is hydrogen or an alkyl, substituted alkyl, phenyl or substituted phenyl group, with a nucleophilic reagent HA wherein HS hydrogen and A is a nucleophilic element or group, in the presence of a Group VIII metal and a salt of copper, iron, cobalt, nickel, tin or lead. Specified products and by-products are allyl chloride, vinyl chloride, acetaldehyde, acrolein, allyl alcohol, methallyl benzoate, diallyl phthalate, methyl vinyl ether, isobutyl vinyl ether and diallyl ether.
Patent GB-1401456-A (GB)
Title: Vehicle crash sensor condition tester
IPC: G01P15/135
Filed: 1972-12-06
Abstract: 1401456 Inertia switch EATON CORP 6 Dec 1972 [6 Dec 1971] 56289/72 Heading H1N An inertia switch for use in actuating a vehicle crash protection device, such as inflatable bags, comprises an inertia mass 34, Fig. 2 which moves on a predetermined acceleration to close a circuit, as through contacts 50, 52 bridged by moveable contact 48, and has a testing means whereby if the mass 34 and contact 48 are deliberately moved to close the circuit a second moveable contact 74 moves to deactivate the circuit through the crash bag detonator coil 54. The circuit includes an indicator lamp 60 to show that a circuit has been completed through the contacts 48, 50, 52 while the detonation coil 54 is isolated. In the particular embodiment the inertia mass 34 and contact 48 are slideable as a unit on a central support rod 42 against the action of a compression coil spring 38, the contact 48 moving spring contacts 50, 52 apart to provide a wiping and cleaning action. Deliberate movement of the mass 34 may be caused by a cylindrical solenoid 62 having a central armature core 64 which moves to push the mass 34 when the solenoid is activated, as by moving the ignition switch 80 to the START position. Spring blade contact 74 is simultaneously moved away from the contact 76 in circuit with the detonator coil 54 to engage a second contact 78 in circuit with the indicator lamp 60.
Patent GB-1100870-A (GB)
Title: Quinoline derivatives and preparation thereof
IPC: C07D215/26
Filed: 1966-12-22
Abstract: Novel quinoline derivatives of the formula <FORM:1100870/C2/1> wherein X is an oxygen or sulphur atom, are prepared by reacting 8-hydroxy-quinoline with acetyl chloride in the presence of an acetylation catalyst and treating the resulting 5-acetyl-8hydroxy -quinoline in solution at an elevated temperature with semicarbazide or a salt thereof or thiosemicarbazide or a salt thereof. Pharmaceutical compositions, comprising a quinoline derivative of the above formula and an inert, physiologically acceptable carrier, have bacteriostatic and, in particular, anti-tubercular, properties.
Patent GB-1199298-A (GB)
Title: Improvements in Arrangements for Providing a Digital Indication of a Measured Value
IPC: G06F7/62
Filed: 1967-12-19
Abstract: 1,199,298. Error correction. ALBISWERK ZURICH A.G. 19 Dec., 1967 [19 Jan., 1967], No. 57495/67. Heading G4H. Errors in the digital indication of a measured value derived from partial values are automatically corrected provided the error in the lowest order of any partial measurement does not exceed n/2 units where n is the basis of the measuring system i.e. 5 units in the decimal system. In one embodiment (Fig. 3) the counter 1, 2, 3 for the coarse measurement represented by a pulse train at G is preset to 995 so that no negative corrections are necessary. The second decade 5 of the counter 4, 5, 6 for the fine measurement is also connected to a counting stage 7 which hence holds the most significant digit of the fine value. After the coarse and fine measurements have been entered, the stage 7 receives pulses fed through a gate 19 from a pulse generator 16, these pulses also being fed to decade 3 of the coarse counter (from which any carry is entered in decade 2) until counter 7 reads zero and enables gate 18 to close gate 19. The count in stages 1, 2, 4, 5, 6 is displayed. In a second embodiment (Fig. 4) in which the measured value is represented by a number of two place partial values, a pulse train representing the finest partial value is fed into counter 30 with carries being fed into counter 31. Counter 30 is then counted up to zero by pulse generator 33, the lowest decade 36 of an indicating counter being simultaneously counted down. With counter 30 preset to 5 and counter 32 preset to 9 counter 31 is counted up to zero, counting stage 37 being counted down and counter 30 being counted up by these pulses. Any carry from counter 30 is held in counter 32. The next partial value is then fed into counter 30 with carries being transferred to counter 32 With counter 30 preset to 5 and counter 31 preset to 9, counter 32 is then counted up to zero, counting stage 38 being counted down by these pulses. As before these pulses are also fed to counter 30. This process is repeated for all the partial values, counters 31, 32 being used alternately.
Patent GB-1162130-A (GB)
Title: Thio Compounds useful in Stabilisation of Organic Materials
IPC: C08L23/02
Filed: 1967-12-21
Abstract: 1,162,130. Bis-(hydroxybenzylthio) alkyl benzenes. NATIONAL DISTILLERS & CHEMICAL CORP. 21 Dec., 1967 [28 Dec., 1966], No. 58093/67. Heading C2C. [Also in Divisions C3 and C5] The invention relates to compounds of a general formula wherein K is:  n is a positive integer ranging from 1 to 22, m is a positive integer ranging from 1 to 22, n and m may be equal to each other or not and R 1 , R 2 , R 3 , R 4  is each hydrogen or CH 3 . Bis-(3,5-di-tbutyl - 4 - hydroxybenzylthio) - p - xylene which is claimed per se, is prepared by refluxing alpha, alphal-dichloro-p-xylene and thiourea, adding alcoholic sodium hydroxide, acidifying to produce alpha, alpha<SP>1</SP>-di-mercapto-p-xylene which was added to an alcoholic solution of sodium and the mixture added to 3,5-di-t-butyl- 4-hydroxybenzyl chloride.
Patent GB-1411956-A (GB)
Title: Aids for sportmen
IPC: A63B71/14
Filed: 1972-12-20
Abstract: 1411956 Bags R A GILL 7 Dec 1973 [20 Dec 1972] 58975/72 Heading B8K [Also in Division A6] A porous bag (containing powdered resin for use by sportsmen) is formed from a single sheet of fabric, such as "Courtelle" (R.T.M.), which is folded and sewn as shown to provide a flat bag having a two-ply upper surface and a single ply lower surface.
Patent GB-1451209-A (GB)
Title: Polyalkylene terephthalate resin moulding compositions
IPC: C08L67/00
Filed: 1973-12-28
Abstract: 1451209 Polyalkylene terephthalate resin compositions CELANESE CORP 28 Dec 1973 [12 April 1973] 60133/73 Heading C3R A moulding composition comprises an intimate blend of either polypropylene terephthalate or polybutylene terephthalate resin, each having an intrinsic viscosity of from 0À75- 1À5 dl./g. as measured on a 8% wt. solution in orthochlorophenol at 25 C., with a substituted or unsubstituted alkylene bis fatty acid amide in which the alkylene group preferably has 2- 12 carbon atoms and the fatty acid group 2-30 carbon atoms, and a reinforcing filler. The amide is preferably present in an amount of from 0À01-1% wt. of the composition. Preferred amides are ethylene bis-stearamide, hexylene bis lauramide and ethylene bis 3(3,5- ditertiary butyl, 4-hydroxyphenol) propanamide. Suitable reinforcing fillers are glass fibres, asbestos fibres, talc, calcium silicate, cellulosic fibres, cotton fabric, paper, synthetic fibres and metallic powders. The reinforcing filler is preferably used in an amount of from 2-80 wt. per cent based on the total composition. The composition may optionally contain a flame retardant such as pentabromotoluene, tetrabromo, or -chloro-phthalic anhydride, 3,5,3<SP>1</SP>,5<SP>1</SP> - tetrabromobiphenyl ether, 3,5,3<SP>1</SP>,5<SP>1</SP>- tetrachlorobiphenyl sulphide, 3,5-dichloro-3<SP>1</SP>,5<SP>1</SP>- dibromobiphenyl sulphoxide, 2,4 - dichloro- 3<SP>1</SP>,4<SP>1</SP>,5<SP>1</SP> - tribromobiphenylmethane, decabromobiphenyl ether, hexabromo- or hexachloro - biphenyl, 3,5,3<SP>1</SP>,5<SP>1</SP> - tetrabromo, 2,21- bis - (4,4<SP>1</SP> - dihydroxyphenyl) - propane and 3,5 - dichloro - 3<SP>1</SP>,5<SP>1 </SP>- dibromo - 2,2<SP>1</SP> - bis - (4,4<SP>1</SP>- dimethoxyphenyl) propane which may be in admixture with phosphorus, arsenic, antimony and bismuth containing compounds, preferably the oxides thereof. In the examples moulding compositions are described comprising a glass fibre reinforced polybutylene terephthalate and any one of the above mentioned alkylene bis fatty acid amides.
Patent GB-1374050-A (GB)
Title: Fluid cintainer
IPC: A61J1/00
Filed: 1972-12-29
Abstract: 1374050 Centrifuge container INTERNATIONAL BUSINESS MACHINES CORP 29 Dec 1972 [28 Jan 1972] 60155/72 Heading B2P A fluid container, e.g. for washing and centrifuging blood, is made of flexible material and comprises an annular outer portion forming a toroid when filled, a central hub portion 11 connected to the portion by a plurality of radial channels 7, and an inlet/ outlet tubing connector (not shown) in the central hub portion. The container is formed from two circular pieces 3a, 3b of P.V.C. which are sealed together at their periphery, e.g. by application of heat and pressure and also at sector-shaped areas 5 to form the channels 7. Openings 9 are provided through the areas 5 and in operation fit over projections on a centrifuge rotor to anchor the container during rotation. Fluid may be supplied to, or withdrawn from, the container during centrifuging through the hub portion by way of the tubing connector which is provided with a rotating seal. An outlet tube 15 having inner and outer caps 17, 19 is provided to extract processed blood after centrifuging, while the bag is suspended by a split portion 21, by removing the cap 19 and thrusting a cannula of a tubing set into the tube 15 and forcing off the cap 17. A sampling tube 25 may be provided with one end attached to the periphery of the bag and the other end sealed.
Patent GB-1362560-A (GB)
Title: Circumference measuring device
IPC: G01B3/34
Filed: 1971-12-29
Abstract: 1362560 Circumference measuring devices ABBOTT LABORATORIES 29 Dec 1971 [11 Jan 1971] 60563/71 Heading G1M A circumference measuring device particularly for measuring diseased or inflamed joints comprises a flexible band 68 formed with a measuring loop 77 and having one end secured to a body member 10 formed with a handle 12, and the other end secured to a drum 50 Fig. 4 (not shown) rotatable with a dial 56 having a peripheral scale co-operating with an indexing mark 26 on the body 10, the dial 56 being movable by the thumb of a hand grasping the handle 12. In one embodiment a coil spring (60) acts upon the drum to tighten the loop 77 about the joint to be measured, the spring being omitted from a second embodiment.
Patent GB-1329109-A (GB)
Title: Discriminating circuit
IPC: G06V30/10
Filed: 1970-12-22
Abstract: 1329109 Transistor circuits INTERNATIONAL BUSINESS MACHINES CORP 22 Dec 1970 [29 Dec 1969] 60729/70 Heading H3T [Also in Divisions G1 and G4] In a circuit, Fig. 1, for determining whether an electric pulse is of the form shown in Fig. 3 or is as in Fig. 3 but with the voltage V2-V3 approximately zero, the pulse is fed to a first circuit 194 which determines the maximum value V2 of the pulse and to a second circuit 196 which determines the minimum value V3. The maximum value signal is attenuated in unit 198, the resultant signal being compared at 200 with the minimum value. The comparator provides an output pulse if the attenuated signal is greater than V3, i.e., if V2-V3 is sufficiently large. The circuit may be used in the character recognition system described in Specification 1,320,959, scanning discs 121, 122 passing light from the character to photo-cell 184 which provides a series of pulses each similar to that in Fig. 3, to units 196, 198 via a unit 192 which clamps signal level V1 to zero. Clamp 192-The signal from the photocell is fed to terminal 210, Fig. 4. A timing pulse 216, Fig. 5A, precedes the pulse from the photocell and is applied to terminal 218, Fig. 4, to discharge capacitor 224. Emitter follower 228 senses the potential at the gate electrode of FET 226 and places output terminals 212, 214 just below zero. An immediately following timing pulse 232, Fig. 5A, applied to terminal 234 replaces the charge on capacitor 224 to bring the output terminals 212, 214 close to zero. Attenuating unit 198-This may be a preset potentiometer (302, Fig. 6, not shown) at the output of the peak detector if the character and the background are uniform, but if the character and/or background are non-uniform, giving a value V2, V3 which may vary from scan to scan, the attenuator may be self-adjusting to vary the threshold with which the minimum value V3 is compared. In one embodiment Fig. 9, a voltage is passed by potentiomenter 312 to a comparator 320. If, due to change in the character blackness or in the background this voltage falls below the value of the threshold derived via a tap on resistor chain 321-325, comparator 320 steps counter 338 which changes the tap on the resistor chain so as to decrease the threshold level relative to earth. Succeeding scans will adjust the attenuation similarly. In a second embodiment, Fig. 10, the voltage supplied by potentiometer 312<SP>1</SP> is compared at 348 with the threshold level provided by differential amplifier 350. Capacitor 352, initially discharged, charges if the threshold lies above the potentiomater voltage. The voltage across 352 controls the resistance of very low variable resistance transistor 360 so varying the gain of the amplifier. In a third embodiment, Fig. 11 (not shown), the gain of a differential amplifier is adjusted by varying the drain-source resistance of an FET connected to one input of the amplifier.
Patent GB-679648-A (GB)
Abstract: 679,648. Calculating-apparatus; transfer mechanism. ARVAI, T. Nov. 14, 1949 [Nov. 18, 1948], No. 29097/49. Class 106 (i). A calculating machine is provided with two cams 1, 3, mounted adjacent to one another on a common shaft 2, Figs. 1 and 2. Displacement of one cam with respect to the other is effected by setting means, not shown, to separate the cam surfaces by a fixed amount representing the value set in. A transmission mechanism 13 controlling an associated register wheel 6 releases the register wheel a proportional amount, so that the register wheel records the amount set in when the machine is operated. A roller 14 is carried by the transmission lever 13 pivoted about an axis 16, and biased by a spring 15. The lever 13 is provided with an abutment 13<SP>1</SP> adapted to actuate an intermediate lever bearing an escapement pawl 12 so as to cause this lever to pivot about an axis 10, and to release the pawl 12 from one of the ten notches provided on the periphery of a figure wheel 7. The figure wheels are mounted loosely on a shaft 4 and are driven by friction washers 8 spring loaded by springs 9. A locking pawl 17 is provided for each lever 13 and is pivoted at 16 and spring biased at 18. The locking pawl 17 may engage with a notch 11<SP>1</SP> in the corresponding carry-forward arm 11. In operation, for example, to add 1 to 999,999, the number 1 is set in and the cams 1 and 3 of the units element are rotated to provide a separation between the cams 1 and 3 corresponding to the numeral 1. The shaft 2 is rotated to add the number, driving also the shaft 4. The roller 14 of the units lever 13 falls into the opening provided by the separation of the cams 1 and 3 and then resumes its initial position, the displacement being sufficient however to allow the corresponding escapement pawl 12 to disengage and allow rotation of the units wheel 7 through an angle representing One. The wheel is now stopped at the point 0. The projection 7<SP>1</SP> has raised the carry-forward arm 11, Fig. 12, which latter actuates the escapement pawl 12 of the next higher value, Fig. 8, opens it, and allows the tens wheel 7 to move forward one step to 0. This transfer operation is repeated to the wheel representing millions which is moved forward from zero to one.
Patent GB-774623-A (GB)
Abstract: 774,623. Cash registers. STYNER, F., and CHLOUBA, A. May 10, 1955 [May 26, 1954], No. 13445/55. Class 106 (1). Short or long feed movements are imparted to the voucher strip 2 of a cash register, for the purpose of line-spacing the items and finally feeding out the totalled voucher, by means of a feed roller 31 actuated by movement of a printing hammer 4. In the embodiment described, this hammer 4 makes small and ineffective movements during printing of the items by a second hammer 3, and is given a full movement to impress constant matter on the voucher during a total-taking cycle, so that a long feed is then given to the strip. The hammer 4 is secured to a shaft 7 connected by an arm 17 and a link 18 with a pivoted sector 21 adapted to drive the feed roller 31 through a one-way ratchet mechanism. The hammer 3 is mounted freely on the shaft 7. Both hammers are normally held inactive against springs 55 by respective latches 34 ; a second latch 35 is associated with the hammer 4 and arrests it after a small movement following release by the latch 34. During item entering, rotation of the main shaft 15 withdraws a restoring lever 8 for the hammers 3 and 4 and, at the half cycle position, a stud 16 rocks an arm 39 which, through a link 38 trips the latches 34 and so releases the hammer 3 to print the item. The hammer 4 also is released and makes a small movement in coming up to the latch 35 ; this movement is transmitted to the sector 21 but without effect on the feed roller 31 owing to the one-way driving connection. As the cycle is completed, the lever 8 returns and restores the hammers 3 and 4, the sector 21 being returned with the hammer 4 and actuating the roller 31 to line-space the item. In the concluding total-taking operation, a slide 45 is displaced and rocks the latch 35 clear of the hammer 4. The hammer 4 is consequently released for full movement with the hammer 3 to impress constant data on the strip and this full movement is transmitted to the roller 31 to impart a long feed to the strip.
Patent GB-2007478-A (GB)
Title: Heating devices
IPC: H05B3/14
Filed: 1978-09-28
Abstract: A heating device for use in domestic appliances such as egg boilers and coffee percolators, comprises a plate- like P.T.C, resistance heating element 2 adapted for operation at a mains voltage of 220 V with equal heat discharge from each side of the heating element wherein, in order to emit in operation a heat power of more than 50 watts per square centimetre of the surface of said element, the element has a thickness in the range of from 0.5 to 2 mm, and said P.T.C. material has a resistivity at its Curie temperature and at an electrical field strength of 2000 volts/cm in the range of from 10<3> ohms.cm to 6.10<3> ohms. cm. The Curie temperature is at least 50 DEG K higher than the maximum normal operating temperature of the medium being heated. As shown, the element 2 is contained in a recess of a metal container body 1, the recess being closed by a metal plug 11 which is a push fit or a screw fit therein. Thermally conductive insulating layers 212, 222 cover the forces of the element 2 and ductile metal layers 412, 422 even out the pressure exerted on the element 2. A similar P.T.C. plate heating element may be sandwiched between the opposed flat surfaces of two fluid flow chambers of a coffee percolator. <IMAGE>