baber/WOPTO huggingface dataset:
Patent GB-1167943-A (GB)
Title: Multiple Temperature Controller.
IPC: G05D23/24
Filed: 1967-05-23
Abstract: 1,167,943. Automatic temperature control. GLOBE-UNION Inc. May 23, 1967 [July 18, 1966], No. 23776/67. Heading G3R. A temperature control system comprises a number of temperature sensing devices, one at each of a plurality of locations and an associated heating element at each location, switching means being provided for sequentially comparing the signals produced by the temperature sensing devices with a reference signal so as to control the currents flowing in the various heating elements in accordance with the error signals. In the environmental testing of electrical components the components are each placed at different locations in an electrically heated oven, the temperature at these locations being individually controlled. The oven may comprise a number of shelves and the switching means arranged to sequentially select each sensing device in one shelf before selecting those in the adjacent shelf. The heating elements may be supplied with voltages of various values according to the degree of heating required and the heating produced by the heating elements may be modified to take into account the heat produced by the electrical components whilst undergoing test. The sequential switching means may be in the form of relays energized from a source producing pulse trains.
Patent GB-352290-A (GB)
Title: Improvements relating to curtain rails and fittings for the same
IPC: A47H1/144
Filed: 1930-08-08
Abstract: 352,290. Suspending curtains. HARRISON, S. C., Bradford Street Works, Birmingham. Aug. 8, 1930, Nos. 23783 and 30241. [Class 52 (v).] A valance rail bracket a is bent to form a clamp b to engage the main curtain rail e. In a modification one jaw of the clamp consists of a separate member engaging a slot in the bracket.
Patent GB-808613-A (GB)
Title: Trisiloxane
IPC: C09K3/00
Filed: 1957-07-26
Abstract: The invention comprises the compound 1,1,3-5,5 - pentaphenyl - 1,3,5 - trimethyl trisiloxane, useful as a vacuum diffusion pump fluid.  It is best prepared by reacting diphenylmethyl silanol with phenylmethyldichlorosilane in the presence of an hydrogen halide acceptor such as pyridine at temperatures below 100 DEG  C.  It may also be prepared by cohydrolysis of the corresponding chlorosilanes, or by catalytic copolymerization of tetraphenyldimethyldisiloxane and phenylmethylsiloxane, or by reaction of the sodium salt of diphenylmethylsilanol with phenylmethyldichlorosilane. Specifications 612,595 and 684,440 are referred to.
Patent GB-393605-A (GB)
Title: Improved device for supplying water to concrete-mixers
IPC: B28C7/12
Filed: 1931-08-27
Abstract: 393,605. Feeding-devices for concretemixers. JAEGER, G., 642, Wilson Avenue, and EGGERT, J., 304, South Central Avenue, both in Columbus, Ohio, U.S.A. Aug. 27, 1931, No. 23834/32. Divided on 388,802. [Class 86.] Means for feeding concrete-mixers with water in predetermined quantities comprises a supply tank having a discharge valve and a bellowslike conductor within the tank operated externally and controlling the quantity of water discharged on each operation of the valve ; an auxiliary compartment in the tank supplies flushing water. The tank 11 is divided by a partition 14 into two compartments, the smaller, for flushing water discharging through a valve 18 operated by a hand-wheel 32, while the larger discharges through a valve 17 controlled by a lever 40 at the end of the tank and operating the stem 34 of the valve by linkage 38, 37, 36. Both compartments have charging apertures closed by covers 21, 22 mounted on a member 23 which is first released by a central screw 24 and then swung round its pivot to uncover the apertures. To prevent this swinging movement and keep the apertures closed while either of the compartments is being discharged the valve stem 30 is expended upwards to project into a hole in the member 23, and the member 36 operates a stud which projects into another hole in the member. When either of the valves is open the member 23 is locked against pivotal movement. The amount of water discharged on each operation of the valve 17 is controlled by a collapsable tube 45 the height of the upper end of which can be adjusted by means of an external lever 51 working over a scale 52 and connected to the upper end of the tube by links 47, 48. A spring catch 42 holds the valve operating lever 40 in or out of its operating positions.
Patent GB-709882-A (GB)
Title: Process for extracting zirconia from zircon ores
IPC: C22B34/14
Filed: 1952-09-23
Abstract: A zircon ore is heated with or without an addition of alkali metal oxide-yielding material to a temperature sufficient to decompose it to zirconia and glass, and the product is heated at 75-250 DEG C. with a 10-15 per cent. solution of sodium or potassium hydroxide for 1-60 hours to separate the silicate from the zirconia.  If the zircon is heated alone the temperature should be 1800 DEG C. and the product should be quenched to to prevent reformation of zirconium silicate; if glassforming constituents are added, e.g. in the proportion of 0.02 to 0.50 mols per mol of zircon, lower temperatures may be used and quenching is unnecessary.  The glass-forming addition may contain up to 2 per cent. of borax.  The grain size of the zirconia produced varies directly with the temperature and with the amount of alkali added, and particles of controlled sizes between 1 and 50 microns may be obtained.  The process may be applied to hafnium-containing zirconium ores from which pure hafnia may be subsequently separated.
Patent GB-317986-A (GB)
Title: Improvements in or relating to knee-grips for motor cycles
IPC: B62J25/00
Filed: 1928-08-20
Abstract: 317,986. Birmingham Small Arms Co., Ltd., Briggs, H., and Richardson, T. Aug. 20, 1928. Knee grips are formed with a dished back a and with recesses 11 adapted to take over the heads 6 of studs 7 secured to the tank. A plurality of recesses, which may be staggered, is provided to allow of variation of position.
Patent GB-716037-A (GB)
Title: Improvements relating to electronic input circuits for electrical measuring instruments
Inventor: GODDARD MARCUS JAMES
IPC: H03F3/44
Filed: 1951-10-15
Abstract: 716,037. Valve amplifying circuits. NAGARD, Ltd. Sept. 30, 1952 [Oct. 15, 1951], No. 23993/51. Class 40 (6) An input circuit for an electrical measuring instrument, e.g. a cathode-ray tube, comprises a cathode-follower valve with an anode load having the input connected to its control grid and the output taken from its cathode circuit, and a further correcting valve whose control grid and anode are connected to the anode and cathode respectively of the cathode follower valve. The circuit affects a correction for the difference between the frequency responses of the cathode follower for negative-going and positive-going input signals. A steep-fronted negative-going input signal would drive the control grid of the cathode follower negative more rapidly than the cathode can follow due to the stray capacities associated with the cathode and may cut the valve off, thus increasing the effective output impedance of the cathode follower and consequently affecting the frequency response of the circuit. In the present arrangement, however, the anode of the cathode follower goes positive when it is cut off thus sending the control grid of the further valve positive and increasing the conduction in this valve. Since the anode of the further valve is connected to the cathode of the cathode follower, the tendency for the output impedance of the cathode follower to increase on the application thereto of steep-fronted negative-going signals is compensated by the corresponding increase in the conduction through the further valve. In the arrangement shown the input I is connected to the control grid of the valve A and the output 0 is taken from its cathode circuit. The anode of valve A is connected to the control grid of a correcting valve B through condenser C1 while the anode of valve B is connected to the cathode of valve A through a low value stopping resistor R7. The value of resistor R1 is so chosen in relation to the total resistance in the cathode circuit of valve A that no directcurrent potential exists across the output terminals 0 when no direct-current signal is applied to the input terminals I. In a modification (Fig. 2 not shown) which is also for D.C. working, the control grid of valve B is connected to a tapping point on a resistance chain connected between the anode and cathode circuits of valve A, the tapping point being so chosen that when valve A is behaving as a cathode follower, the potential at the grid of valve B does not vary. Condensers are also associated in parallel with the components of the resistance chain to compensate for the effects of stray capacitance at high frequencies. In a third embodiment (Fig. 3, not shown) for alternating-current working only, the anode of valve A is directly connected to the grid a valve B through a low-value stopping resistor, the anode of valve B being coupled to the cathode of valve A through a condenser. The input and output circuits also involve resistance-capacity couplings.
Patent GB-781668-A (GB)
Title: Hair cutter
IPC: B26B21/36
Filed: 1955-08-22
Abstract: 781,668. Haircutters; razors. MALONE, C. E. Aug. 22, 1955, No. 24144/55. Class 30 A haircutter comprises a housing, enclosing a comb and a knife blade assembly, an axle journalled in the housing, a pinion and spaced traction wheels fixed to the axle, and movement-transferring means cooperating with the pinion and connected to the comb and to the blade assembly, the blade assembly slidably overlying the comb which is pivotally secured to the housing about an axis extending along the forward edge of its teeth. As shown, rubbercovered traction wheels 68 and a pinion 70 are mounted on an axle 64 journalled in side walls 12 of a housing 10, the teeth of the pinion meshing with teeth 82 of an operating crank 74 which is connected by a link 88 to a blade carrier 46 and by a link 100 to a comb 20 through a pin and slot connection 94, 96. Movement of the wheels 68 over the head operates the crank to depress the comb 20 round its pivot connection at 97 to the housing until arrested by stops 99 and advances the blade carrier 46, supporting a single- or double-edged razor blade 54, down grooves in the sides of the comb to cut the hair progressively closer to the scalp as the cutting stroke proceeds. At the end of each stroke the comb 'and the blade carrier are retracted by spring wires 103 and 114. Pointers outside the housing are set to determine the length of the cutting stroke and the point at which cutting begins is controlled by the position of a guard 42 which is adjusted by the nut 34, the lost motion pin and slot connection permitting the hair at the top of the head to be cut to a uniform length. Continuation of the cutting stroke after the comb is in contact with the stops 99 effects a close shaving operation.
Patent GB-810748-A (GB)
Title: Perfume compositions
Inventor: HOLNESS DOUGLAS
IPC: C11B9/00
Filed: 1956-08-08
Abstract: Perfume compositions contain an ester of 3 : 5 : 5-trimethylhexanol with a monocarboxylic aliphatic acid containing from 1 to 5 carbon atoms in the molecule.  The perfume composition may contain 1-50 per cent by weight, preferably 2.5-15 per cent by weight, of ester, and may be added to soap or synthetic detergent compositions.  The preferred ester is the acetate.
Patent GB-720642-A (GB)
Title: Improvements in or relating to relief or "flow-control valves"
Inventor: LEVETUS FRANCIS BENJAMIN
IPC: G05D7/01
Filed: 1952-10-01
Abstract: 720,642. Fluid-pressure servomotor-control systems. KEELAVITE CO., Ltd. Oct. 1, 1953 [Oct. 1, 1952], No. 24548/52. Class 135. A relief or flow control valve comprises a housing with a high-pressure chamber A<SP>1</SP> having a relief port A<SP>3</SP> leading to a low-pressure chamber B, a single diameter piston valve member D movable in a cylinder C coaxial with the port, the circumferential edge of the piston end being urged by a spring E into line contact with the annular relief port seating A<SP>4</SP> on a diameter equal to the piston diameter, a restricted passage G between the high-pressure chamber and a pressure balancing chamber F at the other end of the piston, and a spring- pressed pilot valve K controlling communication between the chambers F and B and arranged to open on a predetermined pressure difference between these chambers. The control valve may keep the pressure drop constant across an orifice connecting chambers A<SP>1</SP> and B, and another pilot valve may be inserted in a passage connecting the downstream side of the orifice to the chamber F and opening at a pressure difference less than that for valve K.
Patent GB-174664-A (GB)
Title: Improvements in miners' electric lamps
IPC: F21L4/00
Filed: 1920-08-25
Abstract: 174,664. Hailwood, E. A. Aug. 25, 1920. Hand lamps.-In a miner's electric safety lamp the protecting- glass G may be secured by a cage stamped from a single piece of metal, and comprises a crown P<x>, Fig. 12, two pillars F and two fingers F<x>. The glass G<x>, Fig. 13, is formed of a solid block provided with separate recesses for each lamp bulb and a central recess for the passage of the stem of a switch A14. This stem carries a handle P<2> which serves to protect the glass from falling debris. In a modification the glass G<5>, Fig. 15, has one recess only for the several bulbs, and external grooves G<4> to receive the crown pillars P<1>.
Patent GB-1466854-A (GB)
Title: Liquid storage container
IPC: A61B10/00
Filed: 1974-05-23
Abstract: 1466854 Storage containers for urine &c R S FORREST 23 May 1974 [23 May 1973] 24601/73 Heading A4N [Also in Division B8] A storage container for liquid e.g. urine samples, comprises a pliant waterproof bag 4 having a funnel portion 3, a rigid neck portion 7, and a body portion 5, and a structure I for supporting the bag with the body portion within it and with the funnel portion flaring upwardly and outwardly. The structure 1 may be a collapsible cardboard box, and downwardly pointing generally triangular flaps 8 may be provided to support the funnel. Alternatively structure 1 may be a corrugated polypropylene carton, or a cylindrical tube or cage. The rigid neck portion 7 may be provided by tubes 11, 12 tightly gripping the material of the bag; alternatively outer tube 12 may be replaced, Fig. 4 (not shown), by a ring (13) and a heat shrinkable sleeve (14). A stopper 9, for insertion into tube 11 to close the body portion 5, may be self-expansible, or a push-fit or a screw-fit, and may be covered with a disposable plastics sac. The bag 4 may be rectangular or alternatively it may consist, Fig. 5 (not shown), of a rectangular body portion (14) having its upper edges (15) tapering to a neck portion (16) containing a welded or glued internal tube. The funnel portion (17) has edges (18) inclined downwardly from a central point (19). A third form of bag Figs. 6, 7 and 8 (not shown), has separable body (22) and funnel (20) portions, connected by a spigot entering a socket. The spigot (26) is detachably fitted to the body (22), and the socket is formed by a tube (28) fitted to the funnel (20). The bag may be made of plastics material such as polyethylene, polypropylene or P.V.C., and graduations may be printed on the body portion.
Patent GB-228224-A (GB)
Title: Improvements in and relating to insulating material
IPC: H01B3/06
Filed: 1923-10-03
Abstract: 228,224. British Thomson-Houston Co., Ltd., (General Electric Co.). Oct. 3, 1923. Impregnating-compositions for electric insulation. - Fibrous sheet materials such as asbestos board, e.g. the material described in Specification 19035/05, [Class 70, India-rubber &c], are impregnated with petroleum wax tailings modified by distillation so as to raise its flow point to 45-50‹ C. The impregnation is conducted at a temperature of 220‹ C. and the fully-impregnated material after removal from the bath is further heated to this temperature until the flow point of the absorbed impregnant has been raised to about 100‹ C. Wax tailings of low flow-point are periodically added to the impregnating bath in order to maintain the original viscosity.
Patent GB-507650-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/34
Filed: 1937-09-10
Abstract: 507,650. Electric incandescent lamps. STRATEG STRAHLUNGSTECHNIK GES. Sept. 10, 1937, No. 24750. Void. Convention date, Sept. 10, 1,936. Drawings to Specification. [Class 39 (ii)] The bulb of a lamp containing a gas filling of krypton, xenon, or a mixture of these gases, is made as small as possible and surrounded by an outer bulb of the size usual in the case of ordinary lamps of the same wattage and, in order to neutralize the consequential increase in temperature, the space between the bulbs is filled with a gas or vapour, the heat conductivity of which is greater than that of air, suitable gases being helium and hydrogen. Alternatively the space may contain substances which give off heat-conducting vapours when tho lamp is in operation. The outer bulb may be frosted internally.
Patent GB-1501628-A (GB)
Title: Business forms stationery
IPC: B42D15/00
Filed: 1974-06-05
Abstract: 1501628 Record webs MOORE BUSINESS FORMS Ltd 15 May 1975 [5 June 1974 2 Aug 1974] 24932/74 and 34117/74 Heading B6A A record web, e.g. computer stationery, is printed with spaced groups of parallel blocks 10 extending transversely, and at least one transverse line 11 between each group. Each group of blocks and set of lines may be numbered in the right hand margin of the web and each block and line in the left hand margin. In the embodiments described groups of two or three blocks are separated by sets of one or two lines. The blocks are formed from diagonal lines and are brown in colour as are the intervening lines 11. A transfer web may be interleaved with two such record webs to form a manifolding unit.
Patent GB-260566-A (GB)
Title: Improvements in power transmitting gearing
IPC: F16H37/00
Filed: 1926-10-07
Abstract: 260,566. Rheinische Metallwaarenund- Maschinenfabrik. Nov. 2, 1925, [Convention date]. Driving arrangements.-In gun-training gear and other heavy machinery, reaction upon the driving-means is prevented and the extent of the motion transmitted to the machinery is controlled, as in Specification 276,847, by the use of worm and wheel gearing acting upon the driven member and driven by hand or weak power means, but in the present application, two or more such worm and wheel gears are arranged in series, parallel, or other manner, and may be combined with differential gearing. A member d, which may be formed on a gun base, is driven from a powerful electromotor g through a spurwheel e on the armature shaft f, which carries also a wormwheel h engaged by a worm i driven by a weak motor k. The worm i is geared to a wormwheel n gearing with a worm n' rotated by a hand-wheel n<2>. Current may be supplied constantly at .full strength to the motors g, k, but all motion will be controlled by the motion of the hand-wheel, the motor k serving to overcome the friction resistance in the gear h, i and the motor g supplying the power for gun training. Alternatively, the movement of the hand-wheel may close a switch to establish the motor circuits and may also control the current supply according to its speed of rotation. Further, a control device driven by motor or by hand may, by reversal of the hand-wheel, reverse the motors g, k. More than two gears arranged in series, as shown, or in parallel or otherwise may be employed, in which case separate motors may be used or several gears may be driven by one motor. By the use of suitable spring couplings or other elastic gear members in the trains, the movements of all or some of the gears may be derived from the main engine or motor. In the device shown in Fig. 4, two auxiliary motors t<1>, t<2> drive through worm gears r<1>, q<1> and r<2>, q<2> opposite members of an epicyclic gear p of which the planet carrier is geared to and drives a third worm gear u, v geared by a wheel o to the driven wheel d. In a modification, the planet carrier drives the wheel o directly. Two members of two epicyclic gear trains may be connected together, three motors being used to drive three other members through worm gear and the sixth member of the trains driving a final worm u or a wheel o. The various control motors may be actuated by devices of which it is desired to superpose the movements upon the gun, for example devices for following up the target, for allowing for the oscillations of the ship, as by means of a gyroscopic device, and for allowing for temperature influences, changes of the initial velocity of the shot, &c.
Patent GB-815416-A (GB)
Title: Improvements in or relating to v-belt assemblies
Inventor: SOMERS BROCK ALEXANDER
IPC: F16H61/662
Filed: 1957-08-08
Abstract: 815,416. Expanding pulley gearing. HOOVER, W. S. Aug. 8, 1957, No. 25110/57. Class 80 (2). An expanding V-belt pulley comprises a flange 12 rigid with a driving member 8, and an axially movable flange 6 co-operating with a housing member 19 to define an annular chamber 2 partially filled with a flowable medium 1, such that rotation of the pulley promotes a centrifugal head in the medium to vary the axial thrust on the pulley member 6, the thrust at constant rotational speed tending to resist a decrease in pulley diameter being minimal at maximum pulley diameter. The pulley flange 12 is secured by a grub screw 9 and key 10 to a shaft and a shaft sleeve 8 and locates a bush 17 upon which the belt rides when the pulley is at minimum diameter. The flange 6 is keyed at 16 for axial movement on the sleeve 8 and cooperates with the housing member 19 axially secured to the sleeve 8. The flowable material 1 may be ball shot, oils, or oils loaded with heavy particles, and the angles of the sides of the chamber may be chosen to provide various torque-speed characteristics. The movable flange may be spring-loaded and have maximum and minimum diameter limit stops. A double-ended duplex pulley is described.
Patent GB-1343065-A (GB)
Title: Fitting unit and method of brazing a tube to a female fitting member
IPC: B23K1/20
Filed: 1971-04-19
Abstract: 1343065 Brazing AEROQUIP AG 19 April 1971 [20 April 1970] 25114/71 Heading B3R A brazing fitting unit for brazing to a tubular male member comprises a female fitting member having in its inner wall a peripherally extending reservoir, the reservoir containing a supply of brazing alloy and a portion of the reservoir being contaminated with a material preventing adherence of the brazing alloy, when molten, thereto. The fitting has an annular reservoir in the form of an outwardly pressed bead and part of the interior surface of the reservoir is coated with aluminium, 22, or aluminium possibly by means of rubbing with a tool with a rounded aluminium end. A brazing alloy ring 23 either split or solid, is snapped into the reservoir and the fitting is placed on a tube and the assembly is heated by an induction unit. The alloy melts and flows out of the reservoir into the capillary spaces between the fitting and the tube. After assembling the fitting and alloy ring the assembly may be packaged prior to use at the site.
Patent GB-278002-A (GB)
IPC: B24B11/08
Filed: 1927-09-23
Abstract: 278,002. Cincinnati Grinders, Inc., (Assignees of Caster, J. E.). Sept. 23, 1926, [Convention date]. Balls, shaping and surfacing; wheels. - A centreless machine'for grinding balls &c. consists of an annularly grooved grinding-wheel B between which and a regulating-wheel C adjustable by a screw D, the balls 14 are fed from a container down tubes 12, which are gapped at 15, 16 to allow the balls to contact with the wheels B, C. Within each tube is a slowly rotating starwheel 11, which regulates the speed of descent of the balls in the tubes, and ejects them into a shoot 23; the balls, during grinding, are thus supported upon the balls lying between them and the star wheels.