baber/WOPTO huggingface dataset:
Patent GB-573234-A (GB)
Title: Improvements in relation to samovars and cabinets therefor
IPC: A47J31/44
Filed: 1944-03-15
Abstract: 573,234. Electric toasters. MOISEIWITSCH, W. March 15, 1944. No. 4828. [Class 39 (iii)] [Also in Group VI] The base of an apparatus for making tea or coffee is fitted with electric-heating elements 16 for toasting bread. The door 17 of the toaster is provided with spring tongues for holding the bread in position. The elements 16 may be horizontal beneath a hot water tank 2.
Patent GB-588527-A (GB)
Title: Flashing sign
IPC: G09F13/16
Filed: 1945-02-27
Abstract: 588,527. Flashing signs. BLOW, G. A. Feb. 27, 1945, No. 4828. [Class 3 (i)] A sign element has a transparent or translucent display window 18, is backed by a mirror 21 pivoted loosely about horizontal off-set trunnions at 22, and repeatedly tilted by an electromagnet 15 excited intermittently. The mirror is restored to the position shown by a spring or by gravity, 'and in order to prevent its remaining attracted to the magnet by residual magnetism its surface may be coated with non-magnetic material. The window 18 may be one of a plurality disposed about a display letter &c. it, or its mirror, may be orientated to direct the flash to any required position. The mirror 21 may be a chromium plated sheet of iron, or be an ordinary mirror fixed on an iron plate suspended freely from its edge. The elements may be operated simultaneously or in any desired sequence. Artificial or daylight illumination of the mirrors may be employed.
Patent GB-391282-A (GB)
Title: Improvements in insulated electric connectors
IPC: H01R4/30
Filed: 1932-02-18
Abstract: 391,282. Binding-posts. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and MOOR, E., Compton House, Overcliffe, Gravesend, Kent. Feb. 18, 1932, No. 4884. [Class 38 (i).] A lead-in connector comprises a metal bar 4 provided with pins 11, one of which engages grooves in a recessed part of an insulating member 1 while the other is forced against metal and packing washers 14, 15 by a set screw 13. The conductors are held in grooves in the ends of the bar with the aid of screws 16 and clamping washers 19 which embrace the bar as described in Specification 344,112. In use the lower end is exposed and provides protection against the weather.
Patent GB-1419905-A (GB)
Title: Bobbin doffing and onning apparatus
IPC: D01H9/00
Filed: 1974-02-02
Abstract: 1419905 Doffing and donning device HOWA KOGYO KK 2 Feb 1974 04913/74 Heading DID  In a doffing and donning device, empty bobbins are temporarily stored before donning on a row of pegs on a member swingable in a horizontal plane to and from a conveyor having bobbin-carrying pegs. In a spinning frame, Fig. 3, empty bobbins are carried on pegs 2 of conveyor belt 1 to lie beneath a row of spindles 37. Bar 5 having bobbin holders 35 is then moved horizontally and vertically to transfer the bobbins to pins 30 on member 29. This member, Fig. 6, moves horizontally with the means for moving bar 5 vertically, is biased away from pegs 2 by spring 32, and is stopped by stops 33 when pegs 2 and 30 and holders 35 lie in common vertical planes 36. Bar 5 lifts packages 40 from spindles 37 to pegs 2, and bobbins from pegs 2 to pegs 30, and from pegs 30 to the spindles. Conveyor 1 carries away the packages and returns with empty bobbins. Holders 35 comprise, Fig. 10, a body 43 insertable in a bobbin tube, and member 45 inflatable to deflect body portion 44 to grip the tube. A compression spring may be located between bar 5 and a flange on body 43 to accommodate varying bobbin heights.
Patent GB-661267-A (GB)
Title: Improvements relating to modulator circuit arrangements
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H03C1/06
Filed: 1947-02-20
Abstract: 661,267. Valve modulating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 31, 1948 [Feb. 20, 1947], No. 4919/47. Classes 40 (v) and 40 (vi). A mixer circuit comprises a valve having at least two control electrodes to which the signals to be mixed are separately applied, negative feed-back being applied to both control electrodes to correct for the non-linear. characteristic of the inner control electrode. Fig. 1 shows a circuit for mixing two sawtooth waveforms having different repetition frequencies, Figs. 2a, 2b, by applying them separately to the input transformers 10, 16. Bias potentiometers 20, 29 enable differential variation of the bias applied to the inner control electrodes of the two valves to be made, thus correcting for small differences in the valves characteristics. The cathode feed-back resistor 5 is given a suitable value to compensate for any distortion in the output waveform, Fig. 2f, of either valve caused by the non- linear characteristics of its inner control electrodes. The two output waveforms are then added by means of the common anode load resistor 3 to obtain an output voltage which is a function of the product of the two input signals, variations in the output voltage which are dependent upon only one or other of the input voltages being balanced out and not appearing in the output. Specifications 478,194, 661,264 and 661,266 are referred to.
Patent GB-873192-A (GB)
Title: Improvements in propellant explosive cartridges
IPC: B25C1/16
Filed: 1960-02-12
Abstract: 873,192. Ammunition cartridges. AMP Inc. Feb. 12, 1960 [Feb. 17, 1959], No. 4997/60. Class 9(1). A cartridge comprising a cylinder 10 is closed at one end by a wall 12 with a seating rim 13 and contains an explosive charge 18 between the closed end and a plug 14 lying within the cylinder, and a percussion cap 24 in the plug so that the cartridge can be fired only by a firing pin moving down the cylinder from its open end. The cylinder and closed plug are preferably integral and may be made of an organic thermoplastic such as polyethylene. The plug has a longitudinal passage 20, which interconnects the percussion cap and charge and may have a recess 26 about its middle portion to serve as a gas-check. Specification 872,626 is referred to.
Patent GB-124554-A (GB)
Title: A Process for the Manufacture and Production of Alumina, Sodium and Potassium Carbonates, Sodium and Potassium Aluminates, Magnesia and Calcium Chloride.
Inventor: DUTT ERIC EDWARD
IPC: C01F7/22
Filed: 1918-03-22
Abstract: 124,554. Dutt, E. E., and Dutt, P. C. March 22, 1918. Drawings to Specification. Sodium and potassium carbonates are prepared by treating with carbon dioxide, a solution of aluminates prepared by heating a mixture of aluminous material and sodium or potassium chloride in a rotary furnace in presence of arsenious oxide vapour, as described in Specifications 118,155, 118,156, and 124,553.
Patent GB-741575-A (GB)
Title: Improvements in toys
IPC: A63H5/00
Filed: 1953-02-24
Abstract: 741,575. Musical boxes. MATTEL, Inc. Feb. 24, 1954 [Feb. 24, 1953], No. 5167/53. Class 88(1) [Also in Group XV] A protuberance on the flexible belt of a musical box like that described in Specification 707,248 is used to release a spring- loaded part of a musical toy. A Jack-in-thebox Figs. 1 and 3 comprises a spring-loaded part 4 retained by a lid 2 and a latch 5. The latch is pivoted at 6 and is biased to its latching position by weights 9. The musical box is operated by a handle 13 and the flexible belt 11 carries a large protuberance 17 in addition to the protuberances 16 which pluck the musical comb (not shown). The protuberance 17 releases the latch as shown in Fig. 3. In a musical clock, Figs. 4, 5 a spring-loaded rod 29 is released at a predetermined stage to strike a lever 28 against a bell 27, to uncover a mouse 25 and to rotate a disc 54 pivoted at 55 so that the eyes and the mouth of cat shown on the clock face, appear to change. The L- shaped rod 29 is normally held against the spring 41 by means of a notch 31 held in engagement with a latch plate 34 by a leaf spring 38 and a collar 39. An arm 8 of the L-shaped rod engages slots in the leaf spring and in a flap 58 attached to the disc 54. A dome shaped cover 26 is attached to the upper end of the rod 29 and to a guide rod 30. The latch is released when a large protuberance 42 on the flexible belt 43 engages the rod. Specification 655,658 also is referred to.
Patent GB-511205-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B60L7/24
Filed: 1938-02-18
Abstract: 511,205. Master control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., HASTINGS, H. C., and USHER, F. F. C. Feb. 18, 1938, No. 5216. [Class 38 (iii)] Regenerative and non-regenerative braking.- Regenerative and rheostatic braking of an electrically propelled vehicle is controlled from a brake pedal, and a time lag device independent of the power and braking contactors is effective to delay closure of the rheostatic braking circuit for a definite time following operation of the brake pedal, so that the closure of the regenerative braking circuit takes preference over the closure of the rheostatic braking circuit provided conditions are suitable for regeneration. Upon operation of a power pedal, contacts P1-P14, of a controller M are operated in sequence the motor A being connected to the supply by line contactors L1, L2 with a weak shunt field which is strengthened by the sequential closing of contactors 11-14, and weakened again and finally de-energised on the last portions of the controller after armature resistance R1-R5 has been excluded in steps and a series field diverter circuit made. Movement of the power pedal towards the off position results in regenerative braking. With the power pedal in its off position a braking pedal which operates the mechanical brakes may be actuated to cause contacts P to close. If conditions are suitable for regeneration a relay C having a coil C2 connected across the motor armature, and a relay R also energised from the motor armature are closed to energise contactors 7 and 8 to complete a regenerative circuit, the coil C2 is de-energised by an auxiliary relay 16a and the relay C is maintained by a series coil C, until the regenerative current falls whereupon the relay de-energises the contactors 7 and 8. A rheostatic braking circuit is made by a relay 9 energised by back contacts 7y of the contactor 7. The switch 9 in closing shortcircuits the coil of a relay T which operates to energise a contactor 2 short-circuiting a first step of braking resistance. A coil 15a of a pneumatically operated device is energised upon operation of the brake switch P and after a predetermined adjustable time closes its contacts 15 to energise the contactor 9. Thus if conditions are not suitable for regeneration and the contactor 7 does not close the contactor 9 is operated to introduce rheostatic braking. The circuit of the coil 15 includes contacts of a relay F energised by the field current of the motor. In this way the time delay of the device 15 is made small and where the field builds up quickly this time is sufficient to permit the regenerative connections to be made if conditions are suitable. Where the field is slow to build the necessary further delay in making the rheostatic braking connections in order to provide time for the regenerative connections to be made if conditions are suitable, is provided by the field relay F.
Patent GB-383823-A (GB)
Title: Improvements in artificial horizons for use in sighting instruments
IPC: G01C15/14
Filed: 1932-02-22
Abstract: 383,823. Artificial horizons ; sextants. BUSACCA, S., 28, Littorio Street, Sorrento, Italy. Feb. 22, 1932, No. 5229. [Class 97 (ii).] A liquid level for use as an artificial horizon comprises three interconnected gauge glasses arranged at the corners of a triangle and provided with globes floating on the three liquid surfaces, and a lens placed at the centrobaric point of the triangle with its focus coinciding with the globe at the apex of the triangle. Optical means are provided for viewing a distant object and the globe at the apex simultaneously. In the form shown, a connecting pipe runs from the gauge glass 1c at the vertex of an isosceles triangle to the middle of the connection between the gauge 'glasses 1A, 1B at the ends of the base and an air pipe 3 connects the tops of the gauge glasses 1A, 1B, 1c. Steel globes 4A, 4B, 4c float on the liquid surfaces in the gauge glasses 1A, 1B, 1c and an image of the globe 4c at the apex of the triangle is formed in a telescope 15 by lens 5 and double prism 6. An image of a distant object is reflected on to prism 8 and from thence into the double prism 6 and telescope 15 by a prism which is angularly adjustable by gearing connected to a counter 14.
Patent GB-163492-A (GB)
Title: Improvements in journal bearings for the axles of railway, tramway and like vehicles
IPC: B61F15/06
Filed: 1920-02-20
Abstract: 163,492. Adams, C. E. Feb. 20, 1920. Brasses.-In a journal bearing for the axles of railway, tramway, and like vehicles comprising a metal shoe a and a removable liner d of antifriction metal, spaced ribs o parallel to the axis are formed on the liner to slide in corresponding grooves n in the shoe. The ribs and grooves may be of dovetail or equivalent formation to interlock, or they may be of tapering or other formations requiring the liner to be retained in place by screws passing through the shell into the ribs. In the arrangement shown, the edges of the shoe are chamfered at m and, with undercut parts o<1> of the outer ribs, form triangular recesses for receiving steel bars p screwed to the shoe. The liner may be in the form of a. block, with ribs on its top and side faces. The Provisional Specification also states that the liner may have tapering projections fitting in holes in the shoe, with securing screws.
Patent GB-143967-A (GB)
Title: Improvements in and relating to cable fastening devices
IPC: F16G11/04
Filed: 1919-03-03
Abstract: 143,967. Tugwood, R. J., (Jeffrey Manufacturing Co.). March 3, 1919. Coupling.-Relates to devices comprising an attachment such as an eye, hook, or the like with provision for convenient connexion to ropes or cables, particularly draught cables for mining- machines. A terminal socket 1, having parallel walls 4 and inclined walls 5 between which a loop 6 of the cable is wedged by a block 7, is connected to a cable eye, &c., 3 formed with a yoke 8 having parallel side walls between which the walls 4 of the socket 1 are positioned by a pin 10 extending through apertures in the yoke, socket, and wedge. The diameter of the pin is such that it will be ruptured by any predetermined tension in the cable. The pin also serves to limit the movement of the wedge 7 relative to the socket 1. A chain 13 prevents the end of the cable from flying or recoiling when -suddenly released.
Patent GB-448174-A (GB)
Title: Improvements in gas-burners for gas-fired baking ovens
IPC: F23D14/10
Filed: 1934-11-01
Abstract: 448,174. Gas burners. KEITH & BLACKMAN CO., Ltd., J., and KEITH, G., 27, Farringdon Avenue, London. Nov. 1, 1934, No. 5341/36. Divided out of 448,106, [Group XII]. [Classes 75 (i) and 75 (iii)] In an atmospheric burner for use in baking ovens, such as described in Specification 448,106, the nozzles 38 are held in holes 39 in the burner tube 14 by a channel strip 40, pinned to the tube and formed with transverse slots 41 in register with the nozzles, and the space 43 is fed with combustible mixture through small passages 44 so that a flame applied to the nearest of the nozzles will travel along the tube and light up the other nozzles. End parts 42 of the slots 41 extend beyond the nozzles to form outlets from the space 43. According to the Provisional Specification, a slight leakage is provided around each nozzle into the space 43 instead of the passages 44.
Patent GB-122748-A (GB)
Title: Improvements relating to the Delivery of Thread, Wire and the like from the Supply Spools or Bobbins in Thread Winding and like Machines.
Inventor: SMITH RICHARD HATTERSLEY
IPC: B65H59/04
Filed: 1918-03-28
Abstract: 122,748. Smith, R. H. March 28, 1918. Creel arrangements; tension arrangements; thread guides; stop-motions.-In thread winding and like machines, the delivery bobbin a is provided with a brake strap f which is connected through a spring g to a fixed part of the frame and through a spring k to a balanced lever m carrying a guide-pulley n for the thread, so that undue slack in the thread tends to be rewound on the delivery bobbin. The lever m is suspended by a link m<1> from a pivot 2 and supports one end of a bent lever s mounted on the usual stop-motion lever u, so that, when undue tension occurs in the thread, &c., the bent end of the lever s is brought into the path of the cam t, and the lever u is moved to the right to effect the stoppage of the machine.
Patent GB-268109-A (GB)
Title: Improved process for or method of producing colour printing effects
IPC: B41M3/00
Filed: 1926-02-26
Abstract: 268,109. Eva, A. Feb. 26, 1926. Ornamenting. - Labels, posters, show-cards, &c. are produced by applying black or very dark colour to portions of a sheet of rainbow paper or similarly coloured material, so that the design or portions thereof appear in multi-colour on a black or dark background. The dark colour may be applied by means of a printing block having the design in intaglio or partly in intaglio and partly in relief, or by a lithographic stone, or by covering the parts to form the design with a suitable material of the required shape and applying colour to the remainder of the sheet Transparent rainbow paper may be employed.
Patent GB-850081-A (GB)
Title: Improvements in or relating to photoelectric apparatus
Inventor: ASKEW GERALD HAMILTON
IPC: H04N5/257
Filed: 1957-02-18
Abstract: 850,081. Photo-multiplier gain control. RANKCINTEL Ltd. Feb. 18, 1958 [Feb. 18, 1957], No. 5472/57. Class 40(3). In photo-electric apparatus in which the gain of a number of photo-multipliers is varied substantially equally by a single central, three voltage dividers 23 and 4 feeding photo-multipliers 8, 9 and 10 are each supplied from a separate constant current source comprising the current sources 18, 19 and 20 in series with valves 21, 22 and 23. The grid of each valve is connected to the junction of its associated divider and one of series resistors 5, 6 or 7 and the cathodes of the valves are coupled and joined to the negative terminal of a common constant voltage source 24. The gains of the three photo-multipliers are controlled by the potentiometer 11, the slider of which is connected to the junctions of the series resistors and the dividers by "tracking" variable resistors 12, 13 and 14 and the dividers are shunted by "padding" variable resistors 15, 16 and 17. With potentiometer 11 in its low gain position (slider to negative terminal of supply 24) the padding controls are adjusted for the desired photomultiplier gain ratios and with the control 11 in its high gain position the tracking controls are adjusted for the same ratios. A simpler arrangement which does not use the constant current sources and two modifications of the above arrangement whereby the gain ratio can be set at an intermediate position are described.
Patent GB-1038763-A (GB)
Title: A feed control device for rotating tools
IPC: B23B45/00
Filed: 1962-02-13
Abstract: 1,038,763. Drilling machine details. A. R. E. ARNOT. April 8, 1963 [Feb. 13, 1962], No. 5492/62. Headings B3B and B3C. A drill, reamer &c. is carried in the socket 2 of a quill 1, a hexagonal driving member 5 is keyed in keyways 3 of quill 1 by bronze or like keys 4 and fits into a hexagonal bore in driver 6, and a nut 7 is screwed on to quill 1 and abuts a ball or friction pad bearing. In operation, the whole device is rotated as a unit until the operator grips nut 7, whereupon the quill is advanced. A band brake or clutch may be provided for retarding nut 7.
Patent GB-216224-A (GB)
Title: Improved construction of machine for finishing wood work by glasspapering
IPC: B24B21/00
Filed: 1923-02-26
Abstract: 216,224. Becker, O. G. R. Feb. 26, 1923. Band apparatus. - Table and chair legs &c. having a spiral twist are finished by means of a band of glass paper or similar abrasive having a backing-belt which travels with the band and presses it into the groove. Pulleys 1, 2 having therein a circumferential groove 3 are mounted on a support 4 and are driven by a shaft 5. In the grooves lies a circular or semicircular sectioned belt 7 of leather, indiarubber, &c., which may have a wire or other core, and over the belt lies a band 8 of glass paper &c. kept in tension by a jockey pulley 9. The work 12 is mounted to rotate upon two swingable arms 11 supported on a table 10, which runs on balls or rollers upon ways on a bed 13. The bed 13 is pivoted at 15 to the machine base 14 and may be adjusted to the required angle. The band engages the groove in the work and rotates it and moves it, with the table, axially; the work may be braked by hand or mechanically to ensure proper cutting. The band may be arranged. horizontally, and may be mounted on a rotatable pillar, the band being driven by a flexible shaft. The work support may be stationary and the band moved along the work; automatic reversing-mechanism may be used to reverse the drive of the belt and band.
Patent GB-581417-A (GB)
Title: Suspension means-for example, for the supporting wheels of a vehicle or aircraft
IPC: F16F9/06
Filed: 1944-03-25
Abstract: 581,417. Vehicle &c. suspension devices. S.S. CARS, Ltd., and HEYNES, W. M. March 25, 1944, No. 5567. [Class 108 (iii)] A telescopic suspensior device particularly for vehicle and aircraft wheels comprises flexible envelope means 32 containing gas at super-atmospheric pressure housed within a pressure chamber 31 which is coaxial with and separated by a wall 13 from a liquid chamber 10, restricted one. way communication normally closed by resilient means being provided between the chambers for flow of liquid in each direction through the wall and being opened when the pressure in one chamber is greater than that in the other, flow of liquid from chamber 10 to chamber 31 on shortening of the device being resisted by compression of the envelope means 32, while, on reduction of load, the envelope means expands to force liquid from chamber 31 to chamber 10. As shown, the envelope means 32 comprises a flexible bag secured by an adapter 34 to the upper end of a hollow plunger 12 containing the chamber 31, the remainder of the plunger and the cylinder 14 being filled with liquid. The adapter communicates through a passage 36 with a non- return valve 37 to which a pump may be connected to increase the pressure in the bag 32. On compression of the device, liquid is forced from the chamber 10 through a passage 21 in the plunger-head 13 and moves a spring-pressed slide valve 23 to uncover an opening 22 through which the liquid flows into the chamber 31, compressing the bag 32. On reduction of the load, expansion of the bag 32 forces the liquid from the chamber 31 through a passage 24 so that it moves a second spring-pressed slide valve 26 to uncover an opening 25, through which the liquid flows into the chamber 10. To quicken the return of the device to its normal length, the opening 25 may be of larger diameter than the passage 21. Peripheral notches 29 permit free flow of liquid between the annular space 28 and the chamber 10. The bag 32 may be replaced by a flexible metal bellows or the gas may be enclosed in spherical coverings or balls freely movable within the chamber 31.