baber/WOPTO huggingface dataset:
Patent GB-1371965-A (GB)
Title: Curve tracer
IPC: G06G7/26
Filed: 1972-06-23
Abstract: 1371965 Photo-electric curve followers; recording apparatus W H COULTER 23 June 1972 [26 July 1971] 29505/72 Headings G1A and G1J [Also in Division G4] A curve-tracing arrangement providing arbitrary transformation of an input variable applied at a terminal 5 comprises a recorder 4 having a tracing member 3 movable in response to signals in a control loop 2, the corresponding input variable being fed to a further control loop 1, the two loops being coupled by a scale transformation device which includes a movable member 10 bearing a transformation curve 11a and a curve follower 12. The curve 11a may, for example, represent a log or a probability function whereby the variable is recorded according to a corresponding scale on the recorder 4. The latter is in the form of a table moved by rack-and-pinion 22, 26 in a direction orthogonal to the movement of the tracing member 3. A current representing a second input variable is fed to the motor 27 which actuates the pinion. The control loop 2 comprises the curve follower 12 (as input), a motor 15 and a control circuit 17 between the follower and the motor. The motor drives a continuous belt 14 which actuates the follower 12 and the tracing member 3 in unison. The control loop 1 comprises a circuit 6 for controlling the actuating motor 7 of the transformation device 11 in accordance with the input variable applied at terminal 5. The motor also drives a potentiometer 9 which is included in the input stage of the control circuit 6. The device 11 may be a (replaceable) cylinder 10 bearing a black line 11a representing the transformation function and the curve-follower 12 may consist of a pair of photo-detectors 43, 44, Fig.6, connected to give an output of appropriate sign whenever the line 11a moves from a central position between the detectors. As shown, light from a source 40 is reflected from the surface of the cylinder 10 and transmitted to the photo-detectors 43, 44 by prisms 45, 46 arranged on either side of the line 11a with their apical edges aligned. The detectors are arranged in a bridge circuit Fig.8 (not shown) the output of which is detected by a differential amplifier and fed via a limiter to one or other of a pair of thyristors, according to sign. The thyristors drive the motor 16 in a direction tending to correct misalignment of the prisms, whereby they follow the curve 11a as the cylinder rotates. Control circuit 6 is similar to control circuit 17 and includes a differential amplifier for detecting the difference between the input signal at terminal 15 and the output of a potentiometer 9 driven by the shaft of cylinder 10. The difference signal is used to drive motor 7 which therefore follows the input signal. The bridges in both control circuits include balance-adjusting potentiometers. The light source 40 shares a common current source with the detectors. In a modification Fig.7 (not shown), two pyramidal prisms with apices on either side of line 11a are used.
Patent GB-1162401-A (GB)
Title: Neck Ring Mold
Inventor: MOSLO ERNEST PAUL
IPC: B29C49/06
Filed: 1966-08-01
Abstract: 1,162,401. Injection-blow moulding; neck-moulds. E. P. MOSLO. 1 Aug., 1966, No. 29574/66. Heading B5A. An injection-blow moulding apparatus, Fig. 1, comprises a base 10, a support 20, laterally slidable on piston rod 22 of cylinder 21 within the support, and supporting a vertically reciprocable carrier 24 which carries the neck moulds and parison cones. Lower blow-mould halves 18, 19 and lower injection mould half 17 are mounted on the base 10, the upper mould halves 17<SP>1</SP>, 18<SP>1</SP>, 19<SP>1</SP> being individually vertically reciprocable on piston rods 14, 15, 16 respectively. The carrier 24, Fig. 3, supports a cantilevered platform 52 on which is mounted a piston motor 55 having a threaded piston rod 56. Mounted on rod 56 are a transverse cross-bar 57 and a parallel stripper bar 63 carrying stripper rings 65. Also mounted on carrier 24 is a block 45 through which the parison core 31 extends. Neck ring mould halves 92, 92<SP>1</SP> are carried by locking bars 85, 851 having pins 95, 95<SP>1</SP>, Fig. 4, mounted to converge in the vertical plane towards the front of the machine, and sliding in similarly converging guideways 97, 97<SP>1</SP> in block 45. In operation, in the position shown in Fig. 3, motor 55 is operated tending to pull core 31 to the left, but the closing pressure of the parison moulds 17, 17<SP>1</SP> overcomes this, camming the assembly to the right by means of cam faces 87, 87<SP>1</SP> fixed to the mould halves 17, 171 acting on faces 41, 411 of locking bars 85, 85<SP>1</SP>, which in turn act upon conical portion 74 of the parison core 31. After injection of the parison, mould half 17<SP>1</SP> is raised and carrier 24 is raised to an intermediate position as in Fig. 1, thereby allowing the core 31 to be retracted by motor 55 on to shoulder 50 of block 45, the neck mould halves 92, 92<SP>1</SP> remaining closed. Upon lateral transfer to a blow moulding station, other parison cores being simultaneously transferred to the injection station from the other blow moulding station, a similar camming action, by faces of the blow moulds on closing, is effected (Figs. 5, 6, not shown). The parison P is blown in the blow moulds 19, 19<SP>1</SP> by air supplied through bore 51 in block 45 and bores 83 in core 31 and out through the split 79 between end portion 78 of core 31 and the base 77 opened by depression of pivoted actuator 66 by bolt 113, Fig. 1, on blow mould base 13<SP>1</SP>. On opening the blow moulds 17, 17<SP>1</SP>, the motor 55 is reversed to open the neck ring moulds 92, 92<SP>1</SP> diverging in guideways 97, 97<SP>1</SP> by means of stripper bar 63 which also moves stripper rings 65 (also Fig. 7, not shown) to remove the blown articles from the cores 31. This mechanical stripping is also aided by air supplied through the core 31 due to cross-bar 57 striking the actuator 66, the articles being blown clear of the machine.
Patent GB-833991-A (GB)
Title: Improvements in or relating to air compressors and like apparatus
IPC: F04C29/02
Filed: 1955-10-17
Abstract: 833,991. Rotary compressors. LEAD WOOL CO. Ltd., and BALL, E. F. Oct. 17, 1956 [Oct. 17, 1955], No. 29576/55. Class 110 (2). [Also in Group XIII] Cooling-oil is fed from a sump 30 to a rotary compressor 21 by a pipe 28 as in Specification 783,339 and some of the oil is carried from an oil-separating baffle 29 by compressed-air to a felt filter 33 which permits most of the air to pass through a pipe 35 to a receiver while the previously-entrained oil flows with a small amount of air through a labyrinth trap assembly (see Group XIII) in a tube 11 to the air intake 24 of the compressor.
Patent GB-1475120-A (GB)
Title: False twisting devices for producing crimped filamentary yarns
IPC: D02G1/06
Filed: 1974-07-04
Abstract: 1475120 False twisting MURATA KIKAI KK 4 July 1974 [13 Aug 1973] 29621/74 Heading DID A false twist spindle comprises a bore through which the filament is fed, and a twisting pin mounted transversely in the bore, wherein the twisting pin has a portion 52 of reduced diameter and is arranged so that the point, which lies on the longitudinal axis of the pin at the minimum diameter of the portion 52, is displaced from the rotational axis of the hollow spindle firstly in a direction which is normal both to the rotational axis of the spindle and to the longitudinal axis of the pin by a first predetermined amount, #1, and secondly in a direction along the longitudinal axis of the pin from the point of intersection of the mentioned direction and the longitudinal axis by a second predetermined amount, #2. The offset twisting pin permits the yarn to enter the twist tube exactly along the rotational axis of the tube. The twist tube may have recesses 55, 56 to maintain the balance of the tube during operation. The twist tube may be mounted in air bearings and driven by a turbine.
Patent GB-1510682-A (GB)
Title: Blood gas catheter
IPC: A61M25/00
Filed: 1975-07-15
Abstract: 1510682 Blood-gas withdrawal catheters AIRCO INC 15 July 1975 [1 Aug 1974] 29645/75 Heading A5R [Also in Division B1] A catheter or probe for withdrawal of gases dissolved in blood passing through a blood vessel has a portion for contacting the blood which consists of a gas-permeable tubular membrane and ducts for permitting separate supply and removal of a carrier gas at the distal end. The gas permeable blood-contacting portion 4 which may be methyl-vinylpolysiloxane polymer, tetrafluoroethylene or rubber, defines carrier gas inflow and outflow lumens 4a, 4b, interconnected at the distal end by a metal U-shaped tube 5. The portion 4 is connected by a Y-shaped adaptor 8 to an outer tube 14, e.g. of polyvinyl chloride, through which pass stainless steel carrier gas inflow and outflow tubes 11, 12. A heating resistance loop 13 extends through the outer tube 14 and into the adaptor 8 for maintaining the gas at a desired temperature. In use, the catheter 4 is passed into a blood vessel through a cannula 7. A branch 8b of the adaptor 8 then communicates, through a passage in the adaptor with the interior of the cannula 7 for withdrawing blood samples.
Patent GB-280369-A (GB)
Title: Improvements in or relating to couplings for railway vehicles
IPC: B61G1/36
Filed: 1926-11-24
Abstract: 280,369. Eaton, G. H., Nov. 24, 1926. Couplings, non-automatic.-Relates to non-automatic link-andhook couplings for railway vehicles of the kind operated from the side of the vehicle and in which a transverse shaft E adapted to slide and rotate within a pivoted bearing F carries an arm G provided at its end with means for engaging the last link M of the coupling-chain so as to bring it into engagement with or disengage it from the coupling-hook. According to the invention, the member which engages the link M consists of a tray H, Fig. 3, having an upstanding wall J, K extending around it, a projecting horn I adapted to pass inside the link so as securely to hold the link in the recess L of the tray, and a projecting guide member Q adapted to pass within the adjacent link O, which preferably has a central bridge N. In the normal or inoperative position, the shaft E is slid outwardly and supported by a projection on the operating-lever E engaging with a guide B on the vehicle.
Patent GB-786000-A (GB)
Title: Odour inhibited polyethylene
IPC: C08K5/13
Filed: 1955-10-19
Abstract: Polyethylene is stabilized against the development of objectionable odours by incorporating 0.0005 to 4 per cent by weight of a 2,4,6-trialkyl substituted phenol.  The alkyl radicals may contain from 1 to 12 carbon atoms and 2,4,6-trimethyl, triethyl, tri-isopropyl, tri-t-butyl and tri-t-amyl phenols, 2-t-butyl-4,6-dimethyl, 2,6-diethyl-, di-t-butyl- and dipropyl-4-methyl phenols, 2,6-diethyl-4-t-butyl, 2,6-di-t-butyl-4-t-amyl, 2,6-dimethyl-4-dodecyl and 2,6-di-t-butyl-4-nonyl phenols are specified.  An amount of 0.01 to 5 per cent by weight of organic carboxylic acids or salts thereof may be included in the phenol and the composition may be pigmented with, for example, hydrated chromic oxide, manganese dioxide or manganese ammonium pyrophosphate and a manganese salt of 4-chloroaniline-3-sulphonic acid diazo coupled to b -hydroxynaphthoic acid.  The compositions are prepared by forming a master mix on a heated mixer which is hot rolled, granulated and blended.
Patent GB-488466-A (GB)
Title: Improvements in barrel making machines
IPC: B27H5/10
Filed: 1937-11-01
Abstract: 488,466. Barrel - making machines. ANDERSON, W. R. Nov. 1, 1937, No. 29814. [Class 21] A bilged barrel is formed, crozed, headed, and hooped by firstly placing by hand staves 48, Fig. 23, around an expansible ring 67, Figs. 1, 4 and 23, thereafter closing insertion openings 37 by latches 36 ; secondly forcing truss brackets 32 slightly on to the ends of the barrel to level the stave ends, such brackets 32 being carried by arms 34 having extensions 134 slidable in plates 35 but lockable therein by a hand lever 31 and tooth 65, plates 35 being carried on oppositely movable tables 3 actuated by worm gear on main shaft 8, thirdly locking the truss brackets 32 in position by actuating the mechanism shown in Fig. 27; fourthly retracting tables 3 and locking arms 134 to them by the mechanism 31, 65 ; fifthly unlocking the brackets 32 by releasing the mechanism of Fig. 27 and forcing them together by moving tables 3 so that the staves are brought into their proper bilged formation and hoops contained in the brackets forced on to the barrel; sixthly unlocking truss arm locking mechanism 31, 65 and moving tables 3 inwards, carrying with them rotatable end hoop containers 96 which thus place a ring on each end of the barrel ; seventhly contracting the expansion ring 67, slightly withdrawing the truss brackets by hand, rotating the end hoop containers 96 and with them the barrel by the mechanism 51, 126, Fig. 16, so that the barrel may be crozed by the mechanism 94, Fig. 1, and 88, 89, 90, 110, Fig. 19, and also planed ; eighthly re-engaging the truss brackets 32, expanding the ring 67, withdrawing the hoops, inserting the heads after withdrawing the expansion ring 67 and then again affixing the end hoops ; and finally placing centre hoops around the barrel and tightening them by forcing the faces of the truss brackets against them. The expansion ring 67 consists of arcuate segments on radially slidable arms 68 carrying rollers 69 mounted on a frame 71 carried by a ram 68<1> and is expanded by a plunger head 74 on a ram 68<11>, both rams being actuated by gears from handles 98, Fig. 1. The hoops may be secured in or released from the hoop containers 96 by hand-actuated latches 46.
Patent GB-703697-A (GB)
Title: Improvements in and relating to the production of artificial filaments
Inventor: HARTLEY KENNETH ALISON
IPC: D01D5/20
Filed: 1950-12-07
Abstract: Apparatus for producing random slubs in filaments of synthetic material comprises a Geiger-Muller tube operated irregularly by cosmic radiation or local radioactivity to affect the flow of material to a spinning pump.  The random pulses produced in the Geiger-Muller tube are amplified by valves (see Group XL (b)), and, intermittently and irregularly, current is caused to flow through the solenoid of an electromagnetic clutch connecting a drive to a spinning pump, e.g. an auxiliary pump as described in Specification 640,123.  The solenoid may control the coupling of an auxiliary drive feeding the shaft of the spinning pump through an epicyclic differential gear together with the main drive, or through two free wheel sprockets on the pump shaft.  Specification 579,069 also is referred to.
Patent GB-636507-A (GB)
Title: Improvements in or relating to power units for radio receivers or the like
IPC: H01C7/04
Filed: 1947-11-11
Abstract: 636,507. Automatic regulation. KOLSTER BRANDES, Ltd., and MONTGOMERY, W. A. Nov. 11, 1947, No. 29984. [Class 38 (iv)] In a radio receiver power supply unit, the fall in output voltage due to rise in the resistance of components having a positive temperature coefficient of resistance is compensated by a thermistor having a negative temperature coefficient of resistance in series with the output. As shown, Fig. 2, the thermistor 6 is in series with the negative output lead from the full-wave rectifier 2 energized from the main transformer 1. Specification 557,489, [Group XXXVI], is referred to.
Patent GB-809169-A (GB)
Title: Marker beacon receiving antenna
IPC: H01Q1/28
Filed: 1956-10-02
Abstract: 809,169. Capacitors. COLLINS RADIO CO. Oct. 2, 1956 [Jan. 4, 1956], No. 30018/56. Class 37. [Also in Group XL (c)] A capacitor arranged in series with parts of a radio aerial (see Group XL (c)) comprises coaxial members 13 and 23 separated by a solid dielectric sleeve 26. The outer cylindrical plate 23 is closed at its lower end 24 and attached to one part of the aerial by screw 34. It is separated by a dielectric washer 25 from the hub member 14 bolted to another aerial part 11 and in electrical contact with inner plate 13. Aligned diametrical holes 27, 28 and 29 are provided in the plates and the inner one 13 is provided with a slot 21 at its outer end so that it may be rotated to provide a fine adjustment of capacity. A set-screw 16 is provided to secure the plate 13 after adjustment has been made.
Patent GB-161226-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M3/12
Filed: 1919-12-02
Abstract: 161,226. Degory, E. H. Dec. 2, 1919. Spray carburettors.-The casing b has fitted thereto a removable choke tube f having radial fuel spraying passages g which communicate with an annular chamber h fed from a horizontal enlargement i supplied from the float chamber through a passage k. The enlargement is situated above the fuel level in the float chamber. A second fuel passage m leads to a point adjacent the throttle valve d and is intersected at o by an air passage which may be controlled. A valve l may control the passage k. The enlargement i forms a reservoir to facilitate acceleration.
Patent GB-988835-A (GB)
Title: Permanent-magnetic materials and processes for preparing them
IPC: C04B35/26
Filed: 1963-07-30
Abstract: 988,835. Magnetic compositions. A. COCHARDT. July 30, 1963 [July 31, 1962], No. 30110/63. Drawings to Specification. Heading H1H. A barium and/or strontium and/or lead ferrite contains additional material which, if the sintering temperature were held for a sufficient time, would dissolve in the ferrite, but which is not fully dissolved. In an example, 84À8% by weight of Fe 2 O 3  containing 0À5% SiO 2  is mixed with 15À2% SrCO 3  containing impurities (mainly SrSO 4 , BaSO 4 , CaO and Al 2 O 3 ) and the part of the mixture sintered for a long time (60 minutes) and part for a short time (3 minutes). In the first case nearly all the additional constituents were dissolved in the ferrite, but in the second case only about 20% were dissolved. The material formed in the second case had higher remanence, coercive force and maximum energy product than that formed in the first case. Specifications 988,834 and 988,836 are referred to.
Patent GB-786272-A (GB)
Title: Apparatus for use in quantitative chemical determination processes
IPC: G01N1/38
Filed: 1954-10-20
Abstract: <PICT:0786272/III/1> <PICT:0786272/III/2> <PICT:0786272/III/3> <PICT:0786272/III/4> A reaction vessel 10 is suitable for determinations involving the addition of a small quantity of fluid to a larger quantity of another fluid, e.g. the determination of oxygen in water, where it is desired to exclude contaminating atmospheres during the fluid introduction.  The vessel 10, comprises optionally tap 11 or valve 22 (Fig. 4), which is used to fill the vessel, and essentially a three-way cock 12 (Figs. 2 and 3), which connects the atmosphere inlet 18 via a hole 15 in the hollow plug 14 to the inside of the vessel, or in the other position of the cock (Fig. 2) connects the inlet 18 with a by-pass 19 to allow filling of the inlet to the exclusion of gas.  The inlet may be a capillary tube marked so that a known volume of liquid can be drawn into vessel by devices 11 or 22.
Patent GB-1039188-A (GB)
Title: Improvements in or relating to propagators
IPC: A01G9/20
Filed: 1964-07-31
Abstract: 1,039,188. Plant propagators. F. J. CONSTABLE and N. K. WALSH. July 29, 1965 [July 31, 1964], No. 30322/64. Heading A1E. A plant propagator comprises a water container 17 having an internal ledge 21 on which seats a grid 20 supporting a number of pots 23, wicks (26) extending through holes in the base of the pots to conduct water to the soil in the pots. The container is located on a stand 10 provided with electric heating means e.g. lamps. A transparent cover 30 may be placed on the container and may be provided with ventilation holes which may be controlled by a metal disc.
Patent GB-219233-A (GB)
Title: Improvements in hot plates and ovens
IPC: F24C15/08
Filed: 1923-12-03
Abstract: 219,233. Harbord, A. E. Dec. 3, 1923. Oil cooking-stoves; baffles; ovens; casings.-A hot-plate stand for use with oil stoves comprises a hollow box structure 10 with an apertured top 11, there being a fixed central baffle 12 which divides the interior into two parts and diverts the heat from a lamp placed below the opening 10<a> equally to each part. An oven may be placed over the central opening 11<a> in the top plate into which passes heated air through apertures 10<c> and 12a. The oven comprises four hollow sheet-metal sides 14, 16, 25 and a top, constituting an air-jacket, engaging one another by channel-joints 16a and secured by four bolts 22. The top of the oven is perforated and provided with raised studs 20 for supporting dishes, and in the front is a transparent window 15.
Patent GB-1385438-A (GB)
Title: Stabilized electron-sensitive coating film
IPC: C09D163/08
Filed: 1972-06-28
Abstract: 1385438 Electron-sensitive materials HITACHI Ltd 28 June 1972 [2 July 1971]  30345/72 Heading G2C [Also in Division B6] An electron-sensitive material comprises a support coated with a layer containing an organic polymer containing at least 3 epoxy groups and having a molecular weight from 500 to 10,000,000 and an alkali metal halide, hydroxide or carbonate, an alkaline earth metal halide or hydroxide or a quaternary ammonium salt which stabilizes the polymer against cross-linking. The preferred ammonium salts are of formula:- wherein R 1 , R 2  and R 3  are methyl or ethyl, R 4  is C 4 C 1  8  alkyl or benzyl and X is halide or hydroxyl. In the examples, a glass support is coated with a metal film and then with a layer of the epoxy polymer and metal salt or quaternary ammonium salt, imagewise exposed, developed to remove unexposed areas and etched to produce a mask for printed circuits or a semi-conductor. For semi-conductors, the use of quaternary ammonium salts is preferred.
Patent GB-786201-A (GB)
Title: Improvements in or relating to engine remote control devices
IPC: F02D41/24
Filed: 1954-10-21
Abstract: 786,201. Electric selective control systems. REGIE NATIONALE DES USINES RENAULT. Oct. 21, 1954 [Jan. 29, 1954], No. 30347/54. Class 40 (1). [Also in Groups XXIV and XXIX] A member 38, Fig. 3, regulating the supply of fuel to an internal-combustion engine is actuated by a rotary distributer switch, Fig. 2, to control the actuation of any one or combination of electrically-actuated valves 50, 51, 52 for admitting compressed air into pneumatic cylinder devices A<SP>4</SP>, B4, C<SP>4</SP> respectively which are connected in series to operate the fuel control lever 38.
Patent GB-208148-A (GB)
Title: Improvements in wheels with spring hub particularly adapted to be used in connection with the wheels of airplanes
IPC: B64C25/64
Filed: 1923-12-03
Abstract: 208,148. Soc. Anon. des Ateliers d'Aviation L. BrÚguet. Dec. 6, 1922, [Convention date]. Spring wheels.-A wheel, particularly for use in the landing gear of aeroplanes, comprises a rim a secured by spokes b to a sleeve c rigidly connected by bolts to cheeks f which revolve in bearings about a fixed drum g. The drum g is formed of two rings having cheeks i with slots j in which a tube k, secured to the uprights of the landing gear, can slide. A tube m<1> rigidly secured inside the drum g is held to the tube k by elastic bands n, which allow the tube k to slide in the slot j against the resilient control on receiving shocks in landing.
Patent GB-1240450-A (GB)
Title: Mineral mining machine
Inventor: OVEN TERENCE
IPC: E21C27/06
Filed: 1970-06-23
Abstract: 1,240,450. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. 23 June, 1970, No. 30441/70. Addition to 1,229,238. Heading E1F. The mineral-mining loop chain cutter machine of Specification 1,229,238 is modified in that there is now associated with the upper and lower runs of the cutter chain guideway guide rails that are secured to the guideway and sprocket-supporting frame of the machine and are embraced by slide members on the chain. Preferably guide rails 36, 38 are provided on either side of each run of the guideway, whilst only one guide rail 42 or 44 is provided about the outer arc of each sprocket. The slide members have parts 34 for engaging the rails 36, 38 and parts 40 for engaging the rails 42, 44. The rails 36, 38 overlap the ends of the rails 42 and 44.