baber/WOPTO huggingface dataset:
Patent GB-608862-A (GB)
Title: Improvements in adjustable reactors
IPC: H01F29/10
Filed: 1945-08-20
Abstract: 608,862. Toothed gearing. MACFARLANE ENGINEERING CO., Ltd., MACFARLANE, J. C., and MACFARLANE, W. I. Aug. 20, 1945, No. 21182. [Class 80 (i)] [Also in Group XXXV] A worm and worm-wheel drive between an operating shaft 3 and the rotor of an electric reactor (see Group XXXV) is arranged to reduce or eliminate backlash by mounting the manually rotatable driving shaft 3 in such a way that it is urged laterally to hold the worm 10 in close mesh with the worm-wheel 11, which is secured on the upper end of the rotor. A bearing 13 for the shaft 3 is mounted on a lid or coverplate 16 above the reactor and has secured to it one end of a resilient bar 9, the other end of which carries a bearing 13A for the end of the shaft. The lateral pressure of the worm 10 is such that it locks the rotor against rotary movement or vibration, this effect being increased by the friction in the shaft bearings which are preferably made long and of the sleeve type.
Patent GB-1472492-A (GB)
Title: Induction heating apparatus
IPC: H05B6/00
Filed: 1975-05-19
Abstract: 1472492 Inductively heated cooking apparatus MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 May 1975 [17 May 1974 (3)] 21234/75 Headings H2H and H2F An induction heating cooking apparatus comprises a heating unit 52 having at least one heater coil 54 supplied from an A.C. source 34 by way of a static converter 30 having a high frequency output, the converter 30 including a switching unit 40 which is triggered by a control circuit 60 so that the output frequency of the converter has a value at the start of a cooking operation different from the normal output frequency during the cooking operation. During starting the converter output frequency is arranged to be above that during normal operation. The control unit 60 includes a pulse generator 62 supplying pulses to the gate electroce of a thyristor 42 forming the switching unit 40 and the output frequency of the pulse generator 62 is controlled by a start control unit 64 determining the output frequency of the converter understarting conditions; by a disabling circuit 66 turning the converter off under overload conditions and by an output control circuit 68 arranged so as to keep the output frequency of the converter constant. A timing circuit may be added to the control unit so that the converter is controlled to normal frequency after a predetermined set time. The output frequency may be controlled by a signal which is a comparison between voltage signals representing both the input to, and the output from, the converter. The heating unit 52 may comprise more than one heater coil 56, which coils may be connected either in parallel or in series and means may be provided to maintain constant the voltage across; or the current through; the heating unit 52 when one or more heater coils and adjusted independently of the others. The heater coils may be connected in parallel or in series with adjustable inductors and additional capacitors may be supplied so as to be switchable in circuit with the heater coils. Means may be provided to disable the converter should a cooking pan of unsuitable material, such as aluminium, be used. The control circuit 60 may include means to limit the output frequency of the converter between upper and lower limits.
Patent GB-1388629-A (GB)
Title: Bipolar to mos interface circuit
IPC: H03K19/0185
Filed: 1972-05-08
Abstract: 1388629 Bipolar-FET interface circuits MICROSYSTEMS INTERNATIONAL Ltd 8 May 1972 [29 June 1971 17 Jan 1972] 21319/72 Heading H3T [Also in Division H1] The necessary gate to source voltage required to turn on an inverting F.E.T. T1 is increased by feeding back the drain voltage to control a device such as a F.E.T. T2 connected between its gate and source. Thus the negative input voltage change must turn on T1 sufficiently hard to cause the potential at A to turn off T2, and permit T1 to be turned on completely. Also, when T1 is being turned off by a positive-going INPUT voltage, the drain A goes towards earth by virtue of impedance T3, so turning on T2 which takes T1 gate towards the source voltage V ss  (e.g. +5v) and accelerates turn-off of T1. Gating F.E.T.'s T4, T5 are clock controlled to gate the input and output signals. The integrated circuit (Fig. 4, not shown) has the drain and source regions of the F.E.T.s formed in various p-diffused areas identified by the corresponding reference numerals (D1, S1, &c.). The gates (G1, &c.) are polysilicon deposits over the diffusions, and metallizations form the input, output and supply lines.
Patent GB-1103426-A (GB)
Title: Improvements in or relating to corpuscular beam microscopes
IPC: H01J37/22
Filed: 1965-05-20
Abstract: 1,103,426. Electron beam apparatus. SIEMENS A.G. 20 May, 1965-[21 May, 1964; 17 Aug., 1964], No. 21326/65. Heading H1D. [Also in Division H4] The image produced on the fluorescent screen of a corpuscular (e.g. electrons or ions) beam microscope is focused on the target electrode of a television pick-up tube by means of an optical system comprising the tandem arrangement of two objective lenses or lens systems, each focused at infinity, with the fluorescent screen in the focal plane of one and the target electrode in that of the other lens or lens system. In one embodiment (Fig. 1), one objective 3 is mounted inside the vacuum space of the microscope behind the glass observation plate 4 the other being mounted externally by a fitting including elements 11, 13 forming a support for the pick-up tube 5. In this arrangement the pivot mounted fluorescent screen 8 is adjustable by means of a lever 7 outside the vacuum space. Fig. 2 shows a second embodiment in which the optical system 27 is secured to the pick-up tube 26 and the complete assembly supported from the microscope casing for rack-and-pinion focusing (see also Figs. 3 and 4, not shown) with respect to the fluorescent screen 24.
Patent GB-351763-A (GB)
Title: Improvements in and relating to the control of motor-driven electric arc or flame cutting or welding machines
IPC: B23K37/02
Filed: 1930-07-14
Abstract: 351,763. Dividing or uniting by fusion. AKT.-GES.. FœR TIEFBOHRTECHNIK UND MASCHINENBAU VORM. TRAUZL & CO. and MœLLER, F. L., Scheydgasse, Vienna. July 14, 1930, No. 21329. Convention date, July 13, 1929. [Class 83 (iv).] Some or all of the movements effected by the burner of a motor-driven electric arc or flame cutting or welding machine are controllable from two or more positions relative to the machine so that the operator may move from one position to another and is thus able to inspect the progress of large work. In Fig. 1, hand-operated switches 1, 3, 2 for independently actuating clutches for connecting respectively the drive for the movement of the slide a along the arm c, the vertical movement of the part b and the rotation of the burner head, are connected by cables to switches 5, 7, 6. The pairs of switches may also be electrically connected. The switches 1, 2, 3 may be mounted away from the machine in a box and may be operated simultaneously by stops on a sliding member. In another form, Fig. 2, the switches 18 may be carried by a movable bell 19 and arranged to operate one of a number of reversing clutches 11 through one of the electromagnets 15, 15<1>, the armatures consisting of a lever 20 held in disengaged position by springs 21, 22. The clutches may also be operated by hand by the levers 20. Electromagnetic clutches 55, 54, Fig. 6, may also be used the movable member 54 being in one form connected by gearing 58, 59 to a screw 60 to traverse the burner carriage 62. In another form, Fig. 3, the motor 28 may be started and stopped by a hand-operated switch 18 carried by a movable bell 19, the motor being connected by the variable speed gearing 29, described in Specification 312,193, [Class 83 (iv), Metals, Working], to a drum 30 having cams 31 for automatically operating switches for connecting the drives for the various movements through electromagnetically operated clutches. The longitudinal slide 35 is controlled by the clutch 23, the transverse slide 37 by the clutch 26, the rotary burner head 39 by the clutch 27, and the angular movement of the column 40 on the slide 35 by the clutch 25. Such a machine is suitable for repeat work on geometrical figures.
Patent GB-1104856-A (GB)
Title: Improvements in or relating to tubes of electrostrictive material
Inventor: HESSE GERHARD
IPC: G01B9/02
Filed: 1965-05-20
Abstract: 1,104,856. Piezoelectric elements. CARL ZEISS JENA VEB. 20 May, 1965, No. 21349/65. Heading H1E. [Also in Division G2] A tubular body of electrostrictive material is provided with inner and outer electrodes, either or both of these electrodes being of non- uniform extent in the axial direction whereby the tube may be expanded non-uniformly upon application of a voltage. The ends of the tube may be used to support the transverse semitransparent mirrors of a Fabry-Perot interferometer and the tube used to adjust the distance between the mirrors and their relative angular disposition. A typical distribution of one of the electrodes (either inner or outer) is depicted in the Figure which shows the developed cylindrical surface. The opposite surface (outer or inner) carries a uniform electrode layer. The non-uniform electrode in this instance has three portions, the portion 40 being of uniform extent in the axial direction and serving for uniform expansion and contraction of the tube. The other two layers 41, 42 have sinusoidal distributions mutually displaced circumferentially by 90 degrees, the adjacent sinusoids 36, 37 and 38, 39 being insulated from one another. Thus, opposite voltages applied to areas 36, 37 will cause the mirrors to tilt about an axis parallel to a radius of angle 90 degrees. Voltages applied to areas 38, 39 cause tilt about an axis at right angles to this. The Specification describes several other forms of electrode distribution suitable for providing tilt about a selected axis, e.g. about one of three axes distributed at 120 degree intervals (Fig. 8, not shown). The displacement of the axis of tilt from the centre of the cylinder depends upon the relative magnitudes of the expansions and contractions. These may be regulated by the areas of the sinusoids which do not necessarily have the equal maxima shown in the Figure. Further, the staggering between the sinusoidal portions may be such as to allow overlap (e.g. as in Fig. 12, not shown). In a modification, the non-uniform electrode layers are superimposed and insulated from each other by interposed dielectric layers. The electrostrictive material may be a ceramic.
Patent GB-1048204-A (GB)
Title: Orthodontic appliances
IPC: A61C7/00
Filed: 1965-05-21
Abstract: 1,048,204. Orthodontic appliances. M. WALLSHEIN. May 21, 1965, No. 21567/65. Heading A5R. An orthodontic appliance includes an elastic band which interconnects upper and lower arch wires and carries or is impregnated with a salivasoluble preparation. The arch wires 15,19 are secured to the upper and lower teeth by brackets 17, 18, 21 and 22 and the elastic band interconnects hooks 23, 24 on brackets of the upper and lower arch wires respectively. The preparation, e.g. saccharin, aspirin, cinnamon or flavoured granules is retained in sockets, slits, roughenings or perforations formed in the band or in foam rubber attached to the band.
Patent GB-369126-A (GB)
Title: Improvements in or relating to process and apparatus for the fermentation of carbohydrates
IPC: C12P7/28
Filed: 1931-07-28
Abstract: Acetone and butyl alcohol are produced by the fermentation, with a suitable culture, of a mash having a carbohydrate content of about 7 per cent and to which is added during the fermentation intermittently or continuously a further quantity of mash of higher carbohydrate concentration such that the concentration of total carbohydrates (fermented and unfermented) in the resulting mash mixture exceeds the carbohydrate concentration of the initial mash, the addition being effected in such a manner that at no point in the process is the content of actual unfermented carbohydrate greater than at the commencement.  Bacteria are preferably employed for this purpose which have been cultivated in a mash of higher carbohydrate concentration, thus a mash may be employed which has been taken from a previous fermentation process at a stage of the normal fermentation at which the total carbohydrate concentration is a maximum but about one-third of the total carbohydrates remains unfermented.  The subsequently introduced mash can be prepared from a different raw material from that employed for the starting mash.  The liquor remaining after distillation may be used for preparing another mash. Graphs are given showing the concentration and time relations observed in the new fermentation process together with the proportional numbers of the living bacteria compared with the simple processes.  Examples are given of the fermentation of a potato mash and of the selection of a suitable culture by growing humus of varying origin from beet, rutabaga, chaff of different cereals, &c. in a mash of ground potatoes containing a little potassium carbonate. Specifications 176,284 and 315,002, [both in Class 14 (ii), Beverages &c.], are referred to.
Patent GB-244183-A (GB)
Title: Improvements relating to the fastenings of emergency exit doors of vehicles
IPC: E05B65/36
Filed: 1924-09-15
Abstract: 244,183. Buckney, E. J. D., Guy, S. S., and Guy Motors, Ltd. Sept. 15, 1924. Fastenings operated mechanically from a distance.-The latches 3, 3<a> of an emergency door for passenger vehicles are connected together by a rod. 7 so that they may be actuated simultaneously either by means of inside or outside handles 8, 10 or from the driver's seat by means of a Bowden cable 11. The outside handle 10 is preferably placed at such a height from the ground that jumping is necessary to reach it. Another control may be disposed near to the front entrance of the vehicle, its position being known only to authorized persons. When the latches are released the door is pressed open by a spring plunger 15, Fig. 6.
Patent GB-1424987-A (GB)
Title: Regenerative heat exchanger
IPC: F28D19/04
Filed: 1974-05-16
Abstract: 1424987 Thermal regenerators K R A OSTBO 16 May 1974 [17 May 1973] 21733/74 Heading F4K In a rotary regenerative heat exchanger, e.g. an air preheater, having a cylindrical casing 10 containing a rotor body comprising a plurality of spaced apart perforate discs 12 mounted on a rotatable shaft 11, the casing is subdivided into separate flow passages 14 and 15 for fluid to be heated and heating fluid respectively by two rows of rod members 16 extending radially inwards from the casing wall substantially to the shaft in the interspaces between adjacent discs. Partitions 17 and 18 forming extensions of the rows of rods 16 subdivide the end portions of the easing into distribution and collection chambers for the two heat exchanging fluids which may flow countercurrently as shown, or concurrently. In an alternative embodiment (Fig. 4, not shown), the rotor shaft is disposed vertically instead of horizontally and four rows of rod members (16) are provided to define four fluid passages, two diametrically opposed passages for heating fluid and two intermediate passages for fluid to be heated. In a preferred embodiment (Fig. 5) each rod member comprises a roller (28) having its outer end journalled in the casing and its inner end journalled in a free-floating ring (29); the perforate discs are separated on the shaft by spacer rings (25) and adjacent discs are angularly offset with respect to one another, whereby the fluids are each constrained to follow a tortuous path through the rotor body. In a further embodiment (Fig. 6) each rod member comprises a pair of journalled rollers (30a and 30b).
Patent GB-182712-A (GB)
Title: Improvements in hot air and gas engines
IPC: F02G1/043
Filed: 1921-08-07
Abstract: 182,712. Johnson, M. W. Aug. 7, 1921. Hot air and gas engines. - A hot air or gas engine is of the closed-circuit type, the air or gas being at a high initial pressure and the heat of the exhaust being utilized to heat the inlet 'gas and also the air and gas supplies to the furnace. In the form shown, gas from a pipe 33 is compressed in a pump cylinder 9 in line with the power cylinder 10 and passes in succession through a pipe 12, exhaust-heated tubes in a transfer apparatus 11, a pipe 19, the tubes of a heater 5, and an inlet pipe 25, to the heat-insulated and non-cooled power cylinder 10, through an exhaust pipe 26, around the tubes of the apparatus 11, and through a pipe 31, the tubes of a cooler 4, and the pipe 33, back to the pump 9. The engine may be worked on an open circuit by opening valves 51, 52 at the ends of the pipe 33. The tubes of the main heater 5 are heated by combustion products from a furnace 6. This is supplied with air by a blower 2 driven by a motor 3, the air passing through an inlet tube 34, around the pipes of the cooler 4, and through a. tubular heater 8 and tubes 37, 38 to the inlet chamber 6a and the combustion chamber 6 of the furnace. The gas supply to the furnace is drawn through a pipe 49, a tubular heater 7 and a pipe 50 to a nozzle 40 surrounded by the air inlet 39, Fig. 10. The combustion products from the furnace pass around the tubes of the main heater 5 and through a pipe 44 to the air heater 8, part of the products also passing through a pipe 47 and around the tubes of the gas heater 7 before escaping through a pipe 48 to the pipe 46. The cooler 4 and the heaters 5, 7, 8, 11 are of the form shown in Fig. 5, comprising tube plates 14, 15 connected by tubes for the medium to be cooled or heated, the ends of the apparatus being closed by heads 13, 16 to form inlet and outlet chambers. The inlet 21<a> to the head 16 and the inlet 28 admitting the cooling or heating medium to the space around the tubes enter tangentially. When working upon a closed cycle, leakage is made up by dry air supplied to the pipe 33 by a compressor 53.
Patent GB-571637-A (GB)
Title: Improvements in or relating to the manufacture of in situ concrete piles, walls, coffer-dams and the like
IPC: E02D7/28
Filed: 1943-12-29
Abstract: 571,637. Piles. HOOD, A. Dec. 29, 1943, No. 21810. [Class 68 (ii)] In making in situ concrete piles, the openended casing 10, Fig. 1, 20, Fig. 3, in which the concrete is formed, is connected to the plug 16, 21 by a rubber member 12. In the form shown in Fig. 1, which is more particularly for use when the casing is sunk through a considerable depth of water, the rubber member is provided with apertures 15 for permitting entry of water to destroy the buoyancy of the casing, the water being removed before the concrete is poured, and the rubber member is secured to the casing 10 and is provided with a bead 14 for detachably securing it to a recess 19 in an upstanding flange 18 of the plug. In the form shown in Fig. 3, wherein the plug is driven into the ground by an internal hammer 24, the . rubber member is deformed as shown and a portion is nipped between a flange 31 of the anvil 28 and a flange 22 on the plug.
Patent GB-700885-A (GB)
Title: Latch closing means in circular, independent needle, knitting machines
IPC: D04B15/28
Filed: 1951-09-17
Abstract: 700,885. Knitting-machines. HEMPHILL CO. Sept. 17, 1951 [Nov. 14, 1950], No. 21822/51. Class 74 (2) A cylinder - and - dial machine has a member 6 which positively closes the latches of the dial needles just prior to the transference of the loops on these needles to cylinder needles. The member 6 is carried in a pivoted holder 1 adjustable by a screw 8, against the action of a spring 9, to position the member 6 nearer to or further away from the needles. As the dial needles are withdrawn, after being advanced to enable the loops to clear their latches, prior to the transference of the loops, the member 6 engages the latches thereby causing them to close.
Patent GB-224981-A (GB)
Title: Improvements in manhole covers, gully grates and the like fittings
IPC: E02D29/14
Filed: 1923-08-30
Abstract: 224,981. Adams, S. H. Aug. 30, 1923. Manhole frames and covers.-A manhole cover. gully grate, or like road surface fitting a has a wave-like or undulating under-surface a<1> which seats against a corresponding surface on the frame b. The arrangement serves under pressure of traffic from any direction to bind the seats together and prevent rocking. The grooves of the undulations may be interrupted as shown at g to prevent the accumulation of dirt. Specifications 26393/08 and 199,912 are referred to.
Patent GB-585245-A (GB)
Title: Manufacture of 1:3-butylene oxide
IPC: C07D305/06
Filed: 1944-11-07
Abstract: 1 : 3-Butylene oxide is produced by subjecting the corresponding halohydrin, e.g. 1-chlorbutanol-3, which may be obtained by reaction between hydrogen halide and 1 : 3-butylene glycol, to reaction with an alkali metal hydroxide or alkaline earth metal hydroxide under anhydrous conditions and distilling off the butylene oxide continuously.  Alternatively, the butylene oxide may be obtained from the oxidation products of butane with oxygen by fractionation.  This fraction may be hydrolysed, e.g. with aqueous sulphuric acid, to produce 1 : 3-butylene glycol which is separated, e.g. by distillation, and employed in the regeneration of the butylene oxide. Specification 463,385, [Group III], is referred to.
Patent GB-456599-A (GB)
Title: Improvements in the combustion spaces of internal combustion engines
IPC: F02B19/12
Filed: 1935-08-02
Abstract: 456,599. Cylinders. DARCHE, A. A. A., 245, Rue Edouard Vaillant, Bondy, Seine, France. Aug. 2,1935, No. 21953. [Class 7 (ii)] An auxiliary combustion chamber D<1>, separated from the main combustion chamber D by a small clearance space above the piston, extends parallel to the cylinder axis and contains a removable plug L ; by replacing this plug by another, having a different length, the clearance can be adjusted. The chamber D<1> is either cast with the cylinder, or formed of a good heat-conducting metal and fitted thereto ; it is cooled, either by the cylinder jacket, or by air-cooled fins on its exterior. A space V round the plug increases the cooled surface. The main combustion chamber D, in which the sparking-plug B is arranged over the inlet valve, communicates with the cylinder by a sloping tangential passage G and an annular groove E, tangential to the chamber D<1>. Specification 432,108 is referred to.
Patent GB-203345-A (GB)
Title: Improvements relating to apparatus for filling road watercarts with water and additional liquid
IPC: B67C3/30
Filed: 1923-09-01
Abstract: 203,345. Wintsch, V. Sept. 2, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Mixing fluids in flow.-An apparatus for filling water carts with water containing a definite proportion of another liquid such as a dust-laying medium comprises an injector 4 fitted to the water conduit or hydrant 2 so as to draw a small proportion of the dust-laying medium from a vessel 9. The nozzle of the injector may be changed for the purpose of supplying a different proportion of dust-laying medium.