baber/WOPTO huggingface dataset:
Patent GB-643428-A (GB)
Title: Improvements in or relating to electrically operated apparatus for controlling temperatures
Inventor: STEGHART FRITZ LUDWIG FELIX
IPC: G05D23/22
Filed: 1945-10-18
Abstract: 643,428. Automatic temperature control systems. TINSLEY (INDUSTRIAL INSTRUMENTS), Ltd. Oct. 18, 1945, No. 22288/48. Divided out of 624,309. [Class 38 (iv)] In a system for automatically maintaining a temperature at a predetermined value, for example the temperature of a liquid issuing through a pipe 3 from a heat exchanger 1, a current derived from a thermocouple 5 responsive to the temperature changes is amplified and used to energize an electromagnetic device 12 which operates to move a pivoted jet pipe 30 in one direction against the action of a, returning-spring, the arrangement being such that, at equilibrium, the jet pipe is in a central position relative to two apertures 34, 35 communicating with opposite ends of a piston 36 located within a cylinder 37, whereas an unbalance produces movement of the piston and thence of a control system which regulates the admission of heating liquid through a valve 4 into the heat exchanger 1, and also operates a reset or follow-up device opposing the force exerted by the electromagnetic device 12. The thermocouple 5 is connected in series with a mirror-galvanometer 8 and resistance 9, and associated with a lamp 24 and light-sensitive cell 19, the latter being connected to the negatively-biassed grid 22 of a gas discharge valve 16. The energizing coil of the device 12 is connected in the valve anode circuit, which includes the secondary winding 15 of the feeder transformer, an inductance 14 and resistance 9. Voltage changes produced by variations in the temperature of the liquid are thus amplified and operate the device 12. Oil is fed to the lower end of the jet pipe 30 through a pipe 33. The piston 36 is connected by a rod 43 to the piston-rod of a four-way piston valve with pistons 44, 45 controlling the inlet of pressure oil to the opposite ends of a piston 49 within a cylinder 50. The piston 49 is connected by a link 51 to operate the inlet valve 4 of the heat exchanger 1, and at the same time operates a slider 54 over a resistance 55 in a Wheatstone bridge circuit provided with a balancing resistance 57 and a resistance arm associated with a contact 58 controlled by a small motor 59 which is switched on by the operation of a relay 60 connected across the bridge. A followup or resetting movement is applied to the electromagnetic device 12 by providing thereon an additional winding 64 which is fed from a tapping 62 on a resistance 61 connected across the bridge 57 and in parallel with the relay 60. The resetting force, which is proportional to the time integral of the change in temperature, is determined by the position of the resistance tapping 62. Specification 542,962 is referred to in the Provisional Specification, and Specification 643,440 in the Complete Specification.
Patent GB-839048-A (GB)
Title: Improvements relating to electrode holders for electric smelting furnaces
Inventor: FOYN KJELD
IPC: H05B7/10
Filed: 1957-07-15
Abstract: 839,048. Furnace electrode holders. ELEKTROKEMISK A.S. July 15, 1957, No. 22404/57. Class 39(3) A furnace electrode holder for a continuous self baking electrode includes water-cooled contact clamps each of which makes electrical contact with the electrode over only a part of its total inner surface facing the electrode. As shown, Fig. 1, each clamp 1 has an inner face comprising a series of spaced vertical contact strips 2, e.g. of copper, which may be integral with the main clamp body or separately welded thereto, separated by grooves 3 filled with ceramic material. The strips may be widened at their lower portions so as to abut. In another embodiment, Fig. 2, each clamp has a lower electrical contact surface 5 and an upper surface 6 having a ceramic coating. The ceramic material may be covered with a metal sheet or the like insulated from the current-carrying part of the clamp.
Patent GB-740936-A (GB)
Title: 2-alkyl-3, 4, 5, 6-tetrahydropyrimidinium nitrates and fungicidal compositions containing them
IPC: C07D239/06
Filed: 1953-08-14
Abstract: The invention comprises nitrate salts of 2-alkyl - 3:4:5:6 - tetrahydropyrimidines of general formula <FORM:0740936/IV(a)/1> wherein R1, R2, R3, R4, R5 and R6 each represent a hydrogen atom or an alkyl group containing from 1-4 carbon atoms, R7 represents a hydrogen atom or a saturated hydrocarbon group containing from 1-3 carbon atoms which may be substituted by an amino or hydroxy group, and R8 represents a saturated alkyl group of 11-21 carbon atoms.  The compounds are prepared by neutralizing the corresponding free tetrahydropyrimidine with a molecular equivalent of nitric acid.  In an example, 2 - heptadecyl - 4 : 4 : 6 - trimethyl - 3 : 4 : 5 : 6 - tetrahydropyrimidine in methanol is neutralized with concentrated nitric acid using methyl red as indicator, and the solution evaporated in vacuo leaving the nitrate salt, which is recrystallized from water.  Other 3 : 4 : 5 : 6-tetrahydropyrimidine nitrates which are mentioned include 2-heptadecyl-, 2-undecyl-, 2-pentadecyl-, 3-aminoethyl-2-heptadecyl-, and 3-hydroxyethyl-2-heptadecyl-4 : 4-dimethyl-6-isopropyl-.ALSO:The invention comprises foliage fungicides which contain as the active ingredient nitrate salts of tetrahydropyrimidines of general formula:-  <FORM:0740936/VI/1> wherein R1, R2, R3, R4, R5 and R6 each represent a hydrogen atom or an alkyl group of from 1-4 carbon atoms, R7 represents a hydrogen atom or an alkyl group of from 1-3 carbon atoms which may be substituted by hydroxy or amino, and R8 represents an alkyl group of from 11-21 carbon atoms.  The compounds may be administered as dusts, as solutions in mineral oils or other organic solvents, as dispersions in water or as oil-in-water emulsions.  Specified organic solvents are isopropanol, toluene, xylene, mesitylene and ethyl benzene, and surface active agents, such as emulsifiers which may be employed in the fungicidal compositions include sodium petroleum sulphonates, mixtures of fatty acid esters of polyethylene glycols, aromatic polyethylene glycol ethers, polyethylene lauryl alcohols, dimeric dialkylphenoxy-polyethoxy ethanols, glyceryl phthalic alkyd resins, polymeric condensation products of alkylene groups and aliphatic amides, and heptadecyl glyoxalidine salts.
Patent GB-640793-A (GB)
Title: Improvements in or relating to means for ventilating the crank cases of internal combustion engines on motor vehicles
IPC: F01M13/02
Filed: 1948-08-25
Abstract: 640,793. Ventilating crank chambers. TRICO PRODUCTS CORPORATION. Aug. 25, 1948. No. 22448. Convention date, October 4, 1947. '[Class 7(ii)] The ventilation of an engine crankcase is effected by air supplied by an engine-driven pump 14, the suction side of which is connected by pipes 15 to an accessory-e.g. a windscreen-wiper motor 5, and provision is made whereby the suction is derived from atmosphere when the accessory is not in use. The motor 5 has a control valve which, when the motor is inoperative, connects a pipe 38 to the suction which then operates on a piston in a casing 29 to open a spring-loaded valve connecting the pipes 15, 34. Air is thus drawn through the air filter 4.
Patent GB-772053-A (GB)
Title: Improved paring device for use in chiropody and the like
IPC: A61B17/54
Filed: 1954-08-03
Abstract: 772,053. Skin paring devices. RYAN, P. T. Aug. 3, 1954 [Oct. 2. 1953], No. 22453/54. Class 81(2) [Also in Group XIV] A paring device for removing surface layers of corns &c. comprises a handle 1 one end of which is forked and carries transversely a support 2 which is set at an angle to the longitudinal plane of the handle 1, has pins 1b for locating a safety razor blade 3 thereon and supports a cover plate 4 to be clamped over the blade 3, so that a limited portion of the blade 3 is exposed in proximity to the space between the prongs 1a of the handle 1, the support 2 being curved so that the blade 3 is bent in a direction perpendicular to that in which a blade is bent in a conventional razor blade holder. The prongs 1a of the handle 1 pass through the support 2 to which they are brazed and form pins 16. The pins 1b have reduced portions which engage with narrow portions of keyhole slots 4a in the cover plate 4 for clamping the blade 3 and cover plate 4 in position. Intermediate the prongs 1a, the support 2 and cover plate 4 have recesses 4b for exposing a limited portion of the blade 3.
Patent GB-1152652-A (GB)
Title: Improvements in or relating to Snare Drum Stands
Inventor: DELLA-PORTA CLIFFORD
IPC: G10G5/00
Filed: 1966-05-20
Abstract: 1,152,652. Drum stands. PREMIER DRUM CO. Ltd. 11 May, 1967 [20 May, 1966], No. 22503/66. Heading G5J. In a drum stand, the drum support comprises a mounting 7 from which two arms 15 are pivotally adjustable in a common plane about parallel axes and a third arm 18 is pivotable in a plane perpendicular to the common plane and is pivoted and retained in a selected position by means such as a screw 21. Means such as a set screw 6 enables a height and orientation adjustment of the mounting which may have a conical joint (10, 11) (Fig. 2, not shown) clamped by a screw 14 to provide further adjustment. Other pivoting and retaining means for the arm 18 include a cam, or spring, wedge, or linkage means. The drum support is preferably made of metal.
Patent GB-1470702-A (GB)
Title: Control circuit for a digital switching system
IPC: H04Q11/04
Filed: 1974-03-29
Abstract: 1470702 Automatic exchange systems STROMBERG-CARLSON CORP 29 March 1974 [27 Sept 1973] 22504/75 Divided out of 1470701 Heading H4K The disclosure in this Specification is identical to that of the parent Specification which relates to a time space time switching system. The claims of this Specification relate to the control arrangement comprising a plurality of parallel recirculating memories in which control words are written, read and erased in parallel one bit being located in each memory, and means for selecting a particular time slot for a given connection and enabling the write means at a moment corresponding thereto,
Patent GB-785567-A (GB)
Title: Pressure regulator for gaseous and liquid media
IPC: B60T8/26
Filed: 1955-08-05
Abstract: 785,567. Fluid pressure brakes. TEVES, H. and TEVES, E. A., [trading as TEVES MASCHINENUND ARMATURENFABRIK KOMM.-GES., A.]. Aug. 5, 1955 [Sept. 30, 1954], No. 22654/55. Addition to 779,909. Class 103 (1). [Also in Group XXIX] A valve as in the parent Specification consisting of a spring-loaded piston 3 subject to inlet pressure from a brake conduit 2 and having a fluid passage 6 controlled by a closure member 7 to maintain an outlet pressure in a second brake conduit 10 in a predetermined relationship to the pressure in the conduit 2 is modified in that the piston 12 which actuates the closure member 7 through a rod 11 is subject to inlet pressure transmitted through a passage 18 instead of to outlet pressure as in the parent Specification. The piston 12 is loaded by an adjustable spring 14.
Patent GB-258595-A (GB)
Title: Improvements in and relating to the mounting of engines on aircraft
IPC: B64D27/06
Filed: 1926-09-15
Abstract: 258,595. Rohrbach Metall-Flugzeugbau Ges. Sept. 18, 1925, [Convention date]. Propelling.-The engine-supporting frames of aircraft are fitted underneath the wings and project beyond the front or rear edge, the main body of each engine lying wholly below the wing, and are enclosed by a separate covering passing into the wing surface. Fig. 1 shows a section of the plane of a twin engined machine in which each engine f is supported by a frame e attached to two points g' and two points g<2> of the front girder g of the plane and to one point h' of a rear girder h. A covering for the frame is shaped to fit the front of the wing and merges into the upper surface, the underneath covering tapering to the point h<1>. A modification is described having a conical front portion partially enclosing a radial cylinder air cooled engine and extending upwards only to the centre of the leading edge of the wing. Fig. 7 shows a mounting arranged beneath the trailing edge for carrying an engine driving a pusher propeller. Fig. 10 shows a mounting for two engines arranged in tandem for use on a quadruple-engined machine. In all cases the engine mountings are separately detachable. Tanks, arrangement of. - Fuel tanks 'are arranged in the front portions of the wings to give a gravity feed to the engines, for example as shown at k, Fig. 7.
Patent GB-359587-A (GB)
Title: Improvements in and relating to mercury vapour rectifiers
IPC: H01J13/20
Filed: 1930-07-29
Abstract: 359,587. Mercury-vapour rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(General Electric Co. ; Schenectady, New York, U.S.A.) July 29, 1930, No. 22833. [Class 39 (i).] A deionizing screen consists of carbon or carboncoated bars located within the anode shield in proximity to the anode surface. Bars 2 radiate from a perforated hub 1 and are loosely supported in brackets 3 on the shield 4 to eliminate stresses due to heating. In modifications, the bars extend radially inward from the shield or pass across the inside of the shield from side to side.
Patent GB-684190-A (GB)
Title: Improvements in signal clipping circuits, particularly for use in television receivers
IPC: H04N5/53
Filed: 1950-09-18
Abstract: 684,190. Automatic gain control. RADIO CORPORATION OF AMERICA. Sept. 18, 1950 [Sept. 22, 1949], No. 22877/50. Class 40 (v). [Also in Group XL (b)] An automatic-gain-control potential for a television receiver 10 is obtained via a potentiometer 102 and a D.C. amplifier 106 from the cathode circuit of a valve 74 forming one of a pair of valves 74, so constituting a clipping circuit for separating synchronizing signals from picture signals (see Group XL (b)). The two valves have networks 84, 90, 92 and 120, 122 in their cathode circuits, the time constants of the networks being comparable to or several times greater than the periods of the line and frame synchronizing signals respectively. The actual clipping levels are determined by the voltages developed in the networks, these voltages tending to keep the clipping level at the " black " level 56a of the signals so that the voltage at the cathode 82 used for the automatic gain control is substantially proportional to this level,
Patent GB-842092-A (GB)
Title: A new or improved method for forging toothed wheels
IPC: B21K1/30
Filed: 1956-07-24
Abstract: 842,092. Forging gear-wheels. WAHLSTATT K. G. B., VON. July 24, 1956 [July 26, 1955], No. 22901/56. Class 83 (4). Toothed wheels, particularly bevel gears, are produced by a single impact pressure on a heated metal blank 15, having an end portion 16 with a smaller resistance to compression than the remainder of the blank, placed between opposed dies 10, 12 and a tooth-forming matrix 17, the metal of the blank thereby flowing radially into the tooth spaces of the matrix progressively from one end to the other. The blank 15 has a frusto-conical end 16 with an adjacent end-face 20 which is initially placed on an ejector 13 out of contact with the dies. The upper die 10 is then lowered to engage the heated blank, retract the ejector 13 and press the blank metal to conform to the shape of the die cavity and thereby produce a bevel gear 27, Fig. 4 (not shown). The lower portion of the tooth spaces 19 of the matrix are filled first. After the pressing operation the ejector rises to remove the pressed gear from the bottom die. Recesses 24, 26 are provided for excess metal which may be subsequently removed by machining. The conical portion 16 of the blank may be heated to a higher temperature than the remaining part of the blank so as to promote flow from this end. The matrix 17 may alternatively be mounted in the upper die.
Patent GB-751690-A (GB)
Title: New or improved group arrangement of electrical instruments on motor vehicles
IPC: B60K37/02
Filed: 1954-08-06
Abstract: 751,690. Conductor arrangements. DAIMLER-BENZ AKT.-GES. Aug. 6,1954 [Aug. 6, 1953], No. 22957/54. Class 38 (4). [Also in Groups XXXI and XXXVI] To permit easy removal of a group of electrical instruments 3-6 from the dashboard of a motor vehicle, their connecting leads, preferably formed by a multicore cable 10, all terminate in one part 11 of a multi-way two-part coupling, the other part of which is secured under the dashboard and in which terminate the conductors of the circuits with which the instruments are associated. The instruments may be on a panel 1 retained in position on the dashboard by a spring strap 7 which engages over a hook 9 behind the dashboard.
Patent GB-237458-A (GB)
Title: Improvements in or relating to suit cases, attache cases or the like
IPC: A45C7/00
Filed: 1924-09-29
Abstract: 237,458. Hess, L., and Davis, J. Sept. 29, 1924. Cases designed to be of variable capacity; lids. -Relates to expansible suit, attachÚ, and like cases, the invention consisting in the hinges and hasp fastenings being so constructed that they adjust themselves automatically to the capacity of the case when packed. In Fig. 4, which shows one of the hinges, one element c is attached to the rear of the lid and the other d slides within a casing a attached to the body. The part d slides upon parallel pins f fixed in the casing, compression springs g tending to oppose extension of the hinge, i.e. pulling the lid b towards the body part a. Fig. 6 shows a hasp fastening as applied to the front edge of the lid, the construction being similar to that described, except that a hasp h, adapted to engage with the spring lockbolt of a lock i, takes the place of the hinge part c. A spring catch e, provided with releasing means, is adapted to be engaged above the part d (see dot and dash lines) to maintain the hasp extended so that the case may be locked; thereafter the catch e is released and the springs operate on both hasps and hinges to draw down the lid to adjusted position.
Patent GB-278867-A (GB)
Title: Improvements relating to bacon slicing and like machines
IPC: B26D1/143
Filed: 1926-09-17
Abstract: 278,867. Forshaw, R. Sept. 17, 1926. Drawings to Specification. Grant of Patent refused. Cutting slices in succession.-In a disc-knife reciprocating table slicing-machine, the knife and table are driven by independent electric motors. The motors may be of the variable-speed type and are mounted on brackets secured to the base of the machine. The transmissions to the knife and carriage are through worm or other gearing, and clutches may be interposed whereby the knife or carriage, or both, may be stopped without stopping the motors.
Patent GB-1006396-A (GB)
Title: Electrical conductor
Inventor: ATHERTON KENNETH OWEN
IPC: B23K1/19
Filed: 1963-06-10
Abstract: Titanium alloys consist of: titanium with up to 14% zirconium; titanium with up to 5% platinum, rhodium or iridium; titanium with up to 10% niobium or tantalum.  A brazing metal consists of 55.5% bismuth 44.5% lead. Specification 881,625 is referred to.
Patent GB-794923-A (GB)
Title: Improvements in or relating to metallurgical briquettes
IPC: C22B1/24
Filed: 1955-08-10
Abstract: Green briquettes comprise an intimate mixture of a reducible oxidic zinciferous material, bituminous coking coal, a clay having a softening point above 2000 DEG F., and a mineral oil having a viscosity of 200-1000 seconds Saybolt-Turol at 122 DEG F.  They preferably comprise, by weight, 15-40 per cent coal, 0-25 per cent solid diluent, 2-7 per cent water, 1-6 per cent clay and 2-7 per cent mineral oil, the remaining oxidic zinciferous material being in the form of an oxide, silicate, ferrite or aluminate, or a roasted sulphate or sulphide.  In the absence of water, the oil may be increased to 6-7 per cent.  The coal is preferably of low grade, and the diluent may be coke, anthracite or other low volatile carbonaceous material.  The clay may be a kaolinitic or other fire clay, or bentonite.  The oil may be a crude petroleum or residual tar oil, or a mixture of heavy and light oils.  The coal and zinciferous material should be ground to pass through a 14 mesh Tyler screen and at least 15 per cent through a 200 mesh screen.  Substantially all the diluent should pass through a 1/4 inch screen and at least 10 per cent through a 200 mesh screen, whilst the clay should be reduced to about 1/4 inch in size.  The mixing time is 10-60 minutes.  The briquettes may be given a preliminary drying at 400 DEG F. prior to coking, or they may be passed directly to be coked at 1000-1800 DEG F.  An initial rapid coking to at least 800 DEG F. will case-harden the briquettes.  For the coking, a bed depth of 8-9 inches is used.
Patent GB-711329-A (GB)
Title: Gas burner having multiple primary air inlets
IPC: F23D14/04
Filed: 1952-09-15
Abstract: 711,329. Gas burners. WHITTINGTON, J. A. Sept. 15, 1952, No. 23135/52. Class 75 (1) A gas burner of the type in which air or other comburant is supplied for mixture with at least one gas jet or jets, and is further supplied to the combustible mixture for facilitating burning without flash back, has a gas supply means, e.g. a chamber 20, Figs. 1 and 2, connected with a supply duct 21, having at least one orifice 23 for discharging a gas jet, a series of parallel spaced members, e.g. strips 25, 30, 33 having aligned orifices 28, 32, 36 of fixed diameters and progressively increasing sizes, each orifice being of uniform cross section throughout the length thereof, the smallest orifice 28 being nearest to and aligned with the orifice 23, and the spaces 27, 29, 34 between the members 25, 30, 33 being fixed and forming air inlet passages through which air is drawn into the gas jet in its passage through the orifices 28, 32, 36, into a burner head 37 having a neck portion communicating with and of internal diameter at least as great as the diameter of the orifice 36, and comprising a chamber 40 provided with an elongated flame port of such area as to control the amount of air induced into the gas-air mixture. The chamber 40 is of tapered form, and the flame port 43, 44, 43 is provided between spaced flanges extending along the sides and end of the head 37 as so to produce a U-shaped flat flame. In a modified construction the or each burner head is connected to the gas supply chamber through a tubular member having axially spaced transverse webs provided with orifices corresponding to the orifices 28, 32, 36, and having air inlet openings in its tubular wall between said webs. The burner head may be formed as a horizontal tube having flanges forming a flame slot on its upper side. In a further modification the gas-air mixture from a tubular injector-mixer is supplied to a distributing chamber 80, Fig. 7, connected by ducts 83 to a plurality of flared burner heads 84 each having converging side walls 86 leading to a slot 87.