baber/WOPTO huggingface dataset:
Patent GB-1113303-A (GB)
Title: Improvements in or relating to pulse jets
IPC: F02K7/02
Filed: 1966-02-28
Abstract: 1,113,303. Pulse jet propulsion plant. H. MAERSK-MÏLLER. Feb. 28, 1966, No. 8712/66. Headings F1J and F1L. A pulse jet having a combustion chamber 10 and a propulsion nozzle 11 has a fuel injection device provided with an automatic control unit 16 which continuously varies the time interval between successive combustion pulses so as to reduce the noise emitted by the pulse jet. The unit 16 varies the rate of fuel flow through the burner 15 and/or the time in each cycle at which fuel injection is started, and may additionally vary the time at which the sparking plug 19 is fired. A modified pulse jet, Fig. 2 (not shown), has, in addition to the unit 16 controlling the rate of fuel flow or time of injection, a control unit (13) which continuously varies the axial position of a sleeve surrounding the nozzle 11 so as to vary the length of the nozzle and thus further control the interval between successive pulses. The two control units (13,16) may be inter-connected and may comprise cams, variable gears, electronic devices, or electro-mechanical devices such as uniselectors.
Patent GB-142628-A (GB)
Title: Improvements in and relating to the permanent way of railways and the like
IPC: E01B9/62
Filed: 1919-04-07
Abstract: 142,628. Phillips, E. A. W. April 7, 1919. Creeping of rails, preventing; vibration, preventing.-Rails are elastically supported upon sleepers by means of a spring 4 either welded to the rail 1 or rigidly secured thereto by bolts passing through the rail and spring. Where bolts are used, the holes may be slotted to allow for expansion of the rails. The spring may be used with chairs 2, Fig. 2, to support the rail clear of its seating, and the chair may have a movable jaw to enable the spring to be secured to the rail before placing it in the road. When used with Vignole rails, the spring may be a closed element, Fig. 3, and may also act as an anchor. The upper side may have turned-down edges to protect the spring from snow. The spring shown in Specification 118,897 may be inverted, with the free ends held in metal castings secured to the foundation. The spring may comprise an oval element in two or more parts secured together. Specification 2197/70 also is referred to.
Patent GB-712357-A (GB)
Title: Improvements in methods of and apparatus for producing oblique surfaces
IPC: B24B17/02
Filed: 1952-04-04
Abstract: 712,357. Copy-planing; copy-milling. STUDER AKT.-GES., F. April 4, 1952 [April 6, 1951], No. 8749/52. Class 83 (3). [Also in Group XXIII] In a copy-planing or milling machine of the kind in which the movement and inclination of a feeler 27, Fig. 2, with respect to the profile of a flat pattern 6 are transmitted to a tool 28 by a pantograph 18 ... 21 and a parallel motion 29, 30, respectively, the pattern 6 and the work-table 2 are connected for simultaneous reciprocation in a direction perpendicular to the plane of the feeler which has an oblique operative surface, Fig. 6, to cause a similar oblique surface to be formed on the edge of the work. The pattern is secured to a carrier 10 reciprocated on a fixed vertical guide 5 by a lever 8, Fig. 8, connected by a link 13, a double-throw crank 12 and an adjustable link 15 provided with two ball joints 14 to the table 2. The pantograph is supported by a link 17 pivotally connected to a projection 16 while the tool is pivoted on a vertical axis for angular movement in sympathy with the tracer and is supported by two pivoted links 22, 23. A member 31 supports the parallel motion. Specification 419,178 is referred to.
Patent GB-1105133-A (GB)
Title: Improved hollow structural assembly
IPC: E04C3/30
Filed: 1965-03-02
Abstract: 1,105,133. Posts; silos; tanks. F. REINKE. 2, March, 1965 [2, March, 1964], No. 8785/65. Headings E1B and E1T. A hollow pylon, well- . shaft silo or tank comprises a number of interlocking tubular sections 22 of mouldable material cemented. polymerised or welded together and additionally braced by longitudinal rods 27 of metal or fibre-reinforced plastics which are located by internal or external flanges on the sections. The pylon may have an arm 28. The sections may be tapered as shown, or may comprise tubes of successively reducing diameter, Fig. 7, (not shown), connected by flanged rings. The sections may have internal ribs or other reinforcement, Figs. 8-19 (not shown). In modifications dispensing with the flanges each tubular section is double-walled and the longitudinal rods are located by transverse webs interconnecting the inner and outer walls of each section.
Patent GB-454139-A (GB)
Title: Improvements in and relating to alternating current dynamo-electric machines, especially synchronous machines, for running at different speeds
IPC: H02K19/32
Filed: 1936-03-24
Abstract: 454,139. Synchronous dynamo-electric machines. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. March 24, 1936, No. 8825. Convention date, Aug. 26, 1935. [Class 35] Machines with two armatures.- The' stator or wound stator core of an alternating- current machine is movable axially to co - operate with either of two sets of salient rotor poles, the pole numbers of the two sets being different. In the form shown, the stator 6 of a synchronous machine has pole-changing windings and co-operates with rotor 4 or rotor 5, these rotors having different numbers of poles. Instead of the whole stator, the wound stator core may be movable axially, and both sets of rotor poles may be carried on the same spider.
Patent GB-488314-A (GB)
Title: Improvements in the manufacture of tea leaf
IPC: A23F3/12
Filed: 1937-03-25
Abstract: 488,314. Boiler mills; sifting-apparatus. MARSHALL'S TEA MACHINERY CO., Ltd., and THORPE, T. S. March 25, 1937, Nos. 8830 and 27989. [Classes 59 and 117] [Also in Group VI] A machine for treating tea comprises a sifting portion and a crushing portion, the latter action being provided by two corrugated rollers 10, 13, one of which 13 consists of a number of discs 13a with their shaft apertures 136 enlarged so as to be independently movable in a plane transverse to the shaft 15 on which they are threaded. An auxiliary roller 14 keeps the discs in contact with the roller 10. The roller 10 moves at a higher speed and so gives a rolling crush on the discs. The sifting portion comprises a jigging trough 1 with upper and lower perforated sheets 2, 3 of stepped form. At one end the trough is supported by rocking arms 7 and at the other end is mounted on a crankshaft 5. The tea is fed into a hopper 4 and so on to the top perforated sheet 2 past a rake 24 to break up any ballings of tea. The finer leaf drops on to the lower perforated sheet 3 for a further sifting, the finest portion dropping to the floor and the remainder passing to a chute at the far end of the lower perforated sheet 3. The coarse leaf on the top perforated sheet 2 is levelled down by a wiper 16 and then passes to the crushing rollers 10, 13.
Patent GB-726347-A (GB)
Title: Improvements in or relating to gas turbine engines or units
IPC: F02C7/08
Filed: 1953-03-31
Abstract: 726,347. Gas turbine plant; elastic-fluid turbines. DAVIDOVITCH, V. March 31, 1953 [April 3, 1952], No. 8830/53. Class 110 (3). In a gas turbine engine having a recuperative type heat exchanger of annular form, the engine parts are largely enclosed by the heat exchanger to reduce loss of heat by radiation from those parts. The plant in Fig. 1 comprises a centrifugal air compressor 1 and a turbine 6 mounted on a common shaft 2, an annular heat exchanger D and an annular combustion chamber B. Air from the compressor 1 passes through ducts 4 to an annular inlet header 5 of the heat exchanger D which comprises tubes 19 mounted in tube plates 8, 21 and disposed longitudinally in an annular space between walls 13, 14. The heated compressed air from the heat exchanger passes through a duct E to the annular combustion chamber B which includes a flame tube 17 and fuel injectors 20. The combustion gases act on the turbine rotor blades 7 and pass through the exhaust passages F, C and enter the heat exchanger through ports I in the inner wall 13 and after passing over the tubes 19 exhaust at K. The plant in Figs. 3 and 4 comprises a centrifugal air compressor 1 and a turbine 6 mounted on a common shaft 2, also an output turbine 28 mounted on a shaft 30, an annular recuperative type heat exchanger D and a combustion chamber B. Air from the compressor 1 passes through a duct 4 to the air inlet manifold L of the heat exchanger which comprises a bank of tubes 31 of arcuate form, the heated air discharging from the manifold M through the duct E to the combustion chamber B. The gases pass in series through the two turbines 6, 28 and the exhaust gases pass through ducts F, C to the hot gas inlet I of the heat exchanger and after passing across the tubes 31 exhaust at K to atmosphere. The turbine disc in Fig. 1 may be cooled by air passing through the tube 16.
Patent GB-1043293-A (GB)
Title: Offset duplicator
IPC: B41F31/30
Filed: 1964-03-03
Abstract: 1,043,293. Printing-apparatus. H. ZAHN. March 3, 1964 [March 23, 1963], No. 8857/64. Heading B6C. A rotary offset printing machine, Fig. 1, comprises a printing cylinder 1 carrying a printing foil, an offset cylinder 3 carrying a rubber blanket, an impression roller 4, a plurality of rotatably mounted forme inking rollers 2, 20- 22, each of the rollers 20-22 being provided with a portion of its length, such as 23, which is of smaller diameter than the rest of the roller and does not transfer ink to the foil on the cylinder 1, and a plurality of electromagnets 8, 9, 26-31 which are adapted to be energized so that they act on the shafts of the forme inking rollers to trip them into or out of engagement with the printing cylinder 1. The forme roller 2 is supplied with ink by a further roller 6 and the magnets 8 and 9 are rotatable on shafts 18, 19 so that the roller 2 always co-operates with the roller 6 in both its operative and inoperative positions. The forme rollers are all axially adjustable in bearings, Fig. 10 (not shown), in order to ink a certain breadth of the printing foil. Lines on the printing foil are selectively inked by tripping the forme inking rollers according to a programme determined by a device 57 comprising a control disc 72, Fig. 3, having a groove 73 and a micro-switch 74 co-operating therewith. The disc is connected to a rotatable knob 37 by ball bearings 76 and is angularly adjusted to a position indicated by a scale 45, Fig. 1, on rotation of the knob when it is required to alter the timing of the tripping in of the roller 2. The other forme rollers are similarly controlled and controls 53-56 are provided on the device 56 for operation when it is required to continuously ink the foil. The device 57 is driven from the cylinder 3 via a toothed belt 32. The micro-switch control of the discs may be replaced by a photo-electric control assembly such as that of Fig. 7 (not shown), in which a light beam passes through the grooves in two adjacent control discs or that of Fig. 8 (not shown) in which code marks for controlling the inking tripping programme are carried by the cylinder 1 and are interpreted with the aid of a light source and a photo-cell. The forme rollers may apply ink of different colours.
Patent GB-1101611-A (GB)
Title: Conversion of cycloalkane to cyclohydroperoxide, cycloalkanol, cycloalkanone and alkanedioic acid
IPC: C07C55/02
Filed: 1965-03-02
Abstract: A cycloalkane, in which the ring is at least C8, is oxidized, in the liquid state with free O2 in absence of an oxidation catalyst at 80-225 DEG , to a cycloalkyl hydroperoxide, the conversion to the latter of the cycloalkane being controlled to be not more than 30%. The product may be reduced (e.g. with a sulphide) to give a cycloalkanol/cycloalkanone mixture which may be oxidized with HNO3 to the corresponding alkanedioic acid.  Specified starting materials are cyclooctane, cyclodecane and cyclododecane.
Patent GB-250261-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/32
Filed: 1926-04-01
Abstract: 250,261. International General Electrio Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). April 2, 1925, [Convention date]. Transformers.-For the protection of the electrically stressed corners of the insulation of transformers in which insulating cylinders d having integrally formed or separate flanges e, f between the windings b, c, metal coatings g extending round the cylinders at these points are provided. The coatings may be disposed either on the inside or outside or on both sides of the cylinders, and the surface may be so dimensioned as to distribute the potential within the assembly to give a uniform potential drop.
Patent GB-389991-A (GB)
Title: Sleeve lock sling hook
IPC: F16B45/04
Filed: 1932-03-24
Abstract: 389,991. Hooks. PENNEFATHER, A. A. E., 26, Cragie Street, Timaru, Canterbury, New Zealand. March 24, 1932, No. 8893. Convention date, March 27, 1931. [Class 89 (ii).] The opening of the hook 1 is closed by a tubular mem. ber 5 which slides on the arm 2. A pin 8 on this arm engages a slot in the tube, the pin entering a recess 7 in a slot in the tube to lock the tube in the closed position.
Patent GB-274036-A (GB)
Title: Improvements in rotary motors or compressors
IPC: F04C18/324
Filed: 1927-03-31
Abstract: 274,036. Eloy, V. July 10, 1926, [Convention date]. Movable-abutment type; packing drums; driving pumps &c.-A rotary motor or compressor comprises two rotary eccentric cylinders 2, 3, one within the other, which are interconnected by a plurality of vanes 4 rigidly secured to the inner cylinder 2 and sliding in a rocking member 5 in the outer cylinder 3; the inner cylinder 2 is divided into a corresponding number of sections a, b on each of which is secured a vane extending the full length of the two cylinders. The admission and discharge is through ducts 17, 18 in the fixed shaft 1; the eccentric portion on which the inner cylinder rotates is formed with corresponding peripheral recesses 20 which periodically register with ports 21 in the inner cylinder. End packing rings 8 for the inner cylinder are held in place by pins 10. The drive takes place through a gear wheel 14 engaging a pinion 15 on the outer cylinder 3.
Patent GB-1162936-A (GB)
Title: Thermoplastic Container
Inventor: FRITZ ROBERT RICHARD
IPC: B65D1/14
Filed: 1968-02-23
Abstract: 1,162,936. Portable container. ESSO RESEARCH & ENG. CO. 23 Feb., 1968 [15 March, 1967], No. 8949/68. Heading B8D. A thermoplastics container has axial strengthening indentations or ridges each comprising two trapezoids 21 joined at their longest sides 22 to a central rectangular strip 24. The container is open mouthed and has a flange 14 encircling the outside of the rim to receive a metal lid which may be coated with a film of resin. The container bottom has a stacking ring 13 to rest on a like container below.
Patent GB-351405-A (GB)
Title: Improvements in and relating to spray carburetters
IPC: F02M1/02
Filed: 1930-03-20
Abstract: 351,405. Spray-carburetters. CHAMBERS, E. T., 1, Guyscliff Road, Leamington Spa. March 20, 1930, No. 8965. [Class 7 (iii).] A venturishaped downdraught air passage 2 is surrounded by an annular nozzle 4 having above it a space 5 to which fuel enters through a number of small orifices 7 the total area of which is less than that of the nozzle 4. The nozzle is fed from a well supplied by a float chamber 12 in which the head of fuel above the nozzle is less than that necessary to balance the capillary and surface tension effects. The float is made of celluloid and is vented through holes 29, 30 leading to a tube 27 communicating with the air outside the chamber ; it is weighted by a metal plate 31. An air strangler 15 is connected to the accelerator pedal by means which cause the strangler to close only on sudden opening movements of the throttle to cause a temporary enrichment of the mixture, the strangler opening slowly again if the pedal remains depressed. A piston 20, connected to the accelerator pedal, moves in a cylinder 19 fixed to the spring-loaded strangler operating rod 17. A small bleed hole 22 allows the piston to move slowly without moving the strangler but is insufficient to allow the rapid escape of air if the piston is moved suddenly; the hole 22 also allows the slow return of the cylinder, whilst a non-return valve 23 facilitates the return of the piston. Fig. 3 shows an alternative method of operating the strangler. A pawl 33 engages a projection 34 on the rod 17 and moves out of engagement as the accelerator is fully depressed. A dashpot 35 permits the slow opening of the strangler. Specification 320,323, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], is referred to.
Patent GB-670029-A (GB)
Title: Improvements in or relating to apparatus for marking instrument scales
Inventor: WALKER LOUIS EDWARD QUINTRELL
IPC: G01R1/28
Filed: 1949-04-01
Abstract: 670,029. Dividing-engines; plotting curves. MARCONI'S WIRELESS TELEGRAPH CO,. Ltd. Dec. 22, 1949 [April 1, 1949], No. 8965/49. Class 97 (iii). Apparatus for marking instrument scales comprises a rotatable arm 1, a traveller member 6 mounted for rectilinear movement on guide-rods 7 and carrying a marker 8, a platform member 9 carrying a recording surface 11 and movable over a rectilinear path on guide-rails 10 at right angles to the rods 7 and pulley and cord means 3, 4, 5 mechanically connecting the rotatable arm 1 to the traveller 6 so that each position of the former corresponds to a definite position of the latter. In use, for example in calibrating the scale of a voltmeter, the angular deflections of the meter are noted at various voltages as measured by a. standard meter. The arm 1 is then rotated in succession to such angular readings using the scale 2 and the platform member 9 positioned linearly in accordance with the corresponding voltage-readings. The member 9 may be provided with a pawl 14 engaging a rack on one of the guide-rails 10, the pawl serving also as an index against a linear scale on the rail. At each reading the marker 8 is pressed to mark the recording surface 11 on the platform 9 so that a calibration curve 19 for the particular instrument may be drawn. The instrument scale 15 is then mounted on the pulley 3 to which the arm 1 is fixed and, starting at either extreme calibration point on the curve, the marker 8 is moved until its point coincides with the curve with the platform 9 in its correct position. A line is then drawn on the scale 15 using the radial edge 1a of the arm as a ruler. The platform is then moved to the position corresponding to the voltage for which the next graduation is required, the marker 8 again brought on to the curve and the next line drawn on the scale. This is repeated until the scale is finished. Alternatively the scale blank 15 may be mounted on a disc carried by the spindle of the pulley 3 and a separate scriber provided for marking the graduations.
Patent GB-878173-A (GB)
Title: Alarm devices
Inventor: SMITH DENNIS WILLIAM
IPC: G08B13/183
Filed: 1959-03-16
Abstract: 878,173. Photo-electric alarm devices. BURGOT RENTALS Ltd. March 8, 1960 [March 16, 1959], No. 8982/59. Class 40(3) In a burglar alarm Al, A2 are inserted in series with projector lamps L1, L2 to energize a lamp IL if either or both projector lamps fail, and a manual key S is provided for testing that photo-transistor OCP71 and its amplifier OC72 are operative.
Patent GB-751402-A (GB)
Title: Process for the production of cyanogen
IPC: C01C3/00
Filed: 1954-03-26
Abstract: Unsaturated chlorides and cyanogen are prepared by reacting cyanogen chloride in the gaseous phase at above 150 DEG  C. with an unsaturated hydrocarbon in the presence of a metal chloride catalyst capable of serving as a chlorine carrier.  Metal chlorides may be cuprous or ferrous chlorides or chlorides of antimony or vanadium, which may be on carriers, e.g. silica gel, pumice, or wood charcoal. Ethylene and cyanogen chloride are contacted with cuprous chloride on a carrier of wood charcoal activated with steam.  At between 200 DEG and 250 DEG  C. cyanogen and ethylene dichloride are formed, while above 300 DEG  C. hydrogen chloride and vinyl chloride are formed with cyanogen.ALSO:Cyanogen is prepared by reacting cyanogen chloride in the gaseous phase at above 150 DEG C. with an unsaturated hydrocarbon in the presence of a metal chloride catalyst capable of serving as a chlorine carrier.  Metal chlorides may be cuprous or ferrous chlorides or chlorides of antimony or vanadium, which may be on carriers, e.g. silica gel, pumice, or wood charcoal.  Ethylene and cyanogen chloride are contacted with cuprous chloride on a carrier of wood charcoal activated with steam.  At between 200 DEG  and 250 DEG C. cyanogen and ethylene dichloride are formed, while above 300 DEG C. hydrogen chloride and vinyl chloride are formed with the cyanogen. The products may be separated by fractional condensation or by condensation at -70 DEG C. and rectification of the condensate.
Patent GB-252505-A (GB)
Title: Improvements in and relating to evaporating apparatus
IPC: B01D1/26
Filed: 1925-04-04
Abstract: 252,505. Blair, Campbell, & McLean, Ltd., and Phillips, J. R. April 4, 1925. Multiple-effect apparatus; separate heater and evaporator aparatus.-In a piled multiple-effect apparatus comprising a series of elements of the separate heater and evaporator type, the liquid passes from the heaters a, a<1>, a<2>, to the evaporating chambers c, c<1>, c<2>, through tubes f surmounted by deflectors g which are adjustable in height so as to vary the extent of the annular openings. The tubes f and the deflectors g may be corrugated. The lowest heater a is heated by steam supplied to its casing by a tube h and the other heaters by vapours evolved in the evaporating chambers below them. Liquid to be evaporated is supplied by a pipe i to the bottom header of the heater a and rises through the tubes b to the upper header from which it passes through the annular opening between the tube f and deflector g into the evaporating chamber c. The partially concentrated liquid is forced or drawn through a pipe k into the second heater d<1>. Concentrated liquid is withdrawn from the upper chamber c<2> by a pump n. Steam or vapour is drawn from the chamber c<2> by a pump to a condenser l.
Patent GB-1494689-A (GB)
Title: Fittings for panels
IPC: F25D23/06
Filed: 1975-03-04
Abstract: 1494689 Brackets ILLINOIS TOOL WORKS Inc 4 March 1975 [7 March 1974] 9026/75 Heading A4B [Also in Division E2]  A plastics device in one piece comprises a base having a flat surface from which projects a hook 24 which terminates in a free end 30 adjacent to the plane of but beyond the margins of the flat surface of the base, and a resilient arm 40 extending from the hook 24 and terminating in a shouldered end 46 adjacent to the flat surface. The device is inserted in a suitably shaped aperture Figs. 16-19 (not shown) in a panel 60 by inserting the hook 24 in the aperture and rotating the base until the shouldered end 40 clips into the aperture and the free end 30 abuts the inside of the panel. The side of the base opposite the hook 24 (i) may be blank Figs. 10 and 22 (not shown) wherein the device blocks the aperture, (ii) may be formed as a projection for supporting shelving e.g. in a refrigerator or showcase, the projection being in the form of (1) a hook, 16, 16a, Figs. 2 and 12 shaped to receive a wire of a shelf, (2) a cylinder 90, Fig. 13, having radially extending flanges 92, 94 for receiving the sidewall 96 of a shelf, (3) laterally spaced arms 100, 102, Fig. 21, reinforced by webs 104, 106, or (4) a cylinder (150), Fig. 23 (not shown), or (iii) may be formed with dovetails, grooves or lips to receive mating bases of supports. The hook may have a chisel point 80, Fig. 12, and a tapered free end 24a so that it may penetrate the foam 84 and a tape 82 over the aperture of a foam-backed insulation panel.