baber/WOPTO huggingface dataset:
Patent GB-648707-A (GB)
Title: Substation equipment for telephone and like systems
Inventor: BELLAIRS GUY FFARINGTON
IPC: H04M7/16
Filed: 1947-01-27
Abstract: 648,707. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Jan. 27, 1947, Nos. 1090/48 and 1091/48. Divided out of 648,674. [Class 40 (iv)] [Also in Group XL (c)] Substation apparatus for use in the high-frequency telephone exchange system described in Specification 648,674 includes a crystal-controlled oscillator V2. This oscillator provides the carrier-frequency for transmission over cable CC1B and the local oscillations for a superheterodyne receiver connected to the incoming cable CC1A. Direct current is supplied over cable CC1A and is fed through a choke CH to the points marked +. Alternating current is supplied over cable CC1B. Negative bias and cathode heater currents for the valves are derived from the secondary of transformer T9, the bias being fed to points marked - The cables CC1A, CC1B may be used simultaneously for telephony, telegraphy, television, facsimile, alarm signals and time signals. Transmitting : When the switch hook contact SW2 is operated, negative bias is removed from valves V6, V7 and audio-frequencies from the microphone M are amplified at V6. At V7, the carrier-frequency from V2 is modulated by the audio frequencies before application to the cable CC1B. When the dialling contacts DS are closed, V6 oscillates at audio-frequency. As shown, digits are transmitted as audiofrequency pulses on the carrier but they may be transmitted as interruptions in the carrier itself. Receiving, thermionic relays : A carrier with a frequency characteristic of the substation, when mixed in V1 with the local oscillations from V2 produces a characteristic intermediate frequency which is accepted by the tuned transformers T2, T3 and is amplified by V3. The output, rectified at RT, is applied to the output valve V4 which feeds the loudspeaker RR. Ringing current of audio-frequency builds up an oscillation in the tuned circuit including condenser C2 and the primary of transformer T4. The thyratron V5 fires when a positive peak of ringing current on the grid falls in a positive half-cycle of alternating current on the anode and the bell B rings until the ringing current is cut off when the switch hook contacts SW1 opens.
Patent GB-1004823-A (GB)
Title: Improvements in discharging means for silo bins
IPC: B65G53/22
Filed: 1962-04-02
Abstract: 1,004,823. Discharge of a hopper by fluidization. BUHLER GEB. April 2, 1962 [April 2, 1961], No. 1113/65. Divided out of 999,106. Heading B8A. Material in hopper 10 is fluidized to cause it to fall into channel 16 whence it is discharged down inclined porous plates 30 by fluidized air introduced at 31; and the level of material in the channel 16 is controlled by diaphragm 34 so that when the level in the channel rises above a predetermined limit the switch 35 is operated and the fluidizing air to hopper 10 is cut off. Thus the bottom of hopper 10 is formed by plates 18 and air is introduced thereunder past valves 25 through pipes 48 into chambers divided by partitions 22 which effectively divide the plates 18 into separate fields positioned along the length of the hopper 10. Pipes 48 supply one set of fields and pipes 49 adjustable relative thereto supply the other set of fields. These fields exist on both sides of channel 16 as shown. Additionally a plurality of plates 44 is provided which are supplied by air  through pipes 50 also controlled by the valves 25. In this way any part of the length of the hopper may be fluidized, the air thereto being cut off by the operation of diaphragm 34 if the height of material in channel 16 should be excessive to thereby temporarily cut off the flow of material into channel 16 from hopper 10.
Patent GB-385445-A (GB)
Title: Plant tie or support
IPC: A01G9/12
Filed: 1932-01-14
Abstract: 385,445. Treatment of growing plants. BRERETON, J. H., 23, Allen Street, Hartshill, Stoke-on-Trent. Jan. 14, 1932, No. 1115. [Class 6 (ii).] A plant tie or support consists of a length of basket cane fastened at one end to a piece of wire bent to form two eye-shaped openings so that the tie may be secured by passing the other end of the cane through the openings. The wire is doubled at the middle and then bent as shown to form the openings B, C. The tips E of the wire are turned outwards and one end of the cane F is inserted between two parallel parts and secured by a metal clip D. The other end of the cane is bent to facilitate threading through the openings B, C.
Patent GB-574249-A (GB)
Title: Improvements in or relating to combing machines
IPC: D01G31/00
Filed: 1944-01-21
Abstract: 574,249. Combing-machines. KAY, A. Jan. 21, 1944, No. 1210. [Class 120 (i)] [Also in Group XXIV] In a Nasmith combing-machine movement of the belt from the loose pulley D to the fast pulley D<1>, Fig. 1, when any of the top combs e are raised and raising of any of the top combs when the belt is on the fast pulley, are prevented by means comprising a rod G extending the length of the machine above the setting-on rod A and having a flat member g the outer edge of which when vertical lies on the path of the strap fork B or a projection B<1> thereon and when the rod is rotated through approximately 90 degrees allows the strap fork to be moved by the setting-on rod, Fig. 2. The rod G carries arms gl adapted to engage projections e<1> on the top comb levers E<1> so that if one of the latter is raised rotation of the rod G is prevented. A cranked pin g<2> is provided on the rod G to engage a hook f on the cover F of the gear casing so that the casing cannot be opened when the belt is on the fast pulley D<1>. The rod G may be rotated by the arms g<1> or separate arms may be provided along the rod for this purpose.
Patent GB-1146106-A (GB)
Title: Improvements in or relating to electric lampholders
Inventor: HUGHES JOHN GEORGE KENNETH
IPC: H01R33/46
Filed: 1967-01-10
Abstract: 1,146,106. Lamp holders. WARD & GOLDSTONE Ltd. 11 Dec., 1967 [10 Jan., 1967], No. 1314/67. Heading H2E. A lamp holder comprises two semi-cylindrical halves 5 of a moulded body which are riveted together at 6 and are provided with a pair of spring plunger contacts 11 and a projecting metal liner sleeve 24. As shown, each contact 11 is prevented from axial and angular movements respectively by the engagement of a recess 19 with a body projection 20, and by a terminal screw 13 which locates in body recesses 21. The liner sleeve 24, which may be made as described in Specification 977,791, has a pair of bayonet slots 28 and is held in the body 5 by means of pips 26 on the latter engaging holes 25 on the liner. The body 5 is provided with outer screw threads 7, 8, separated by a flange 9, and is threaded into a moulded skirt 29 and a terminal cover 30. A cord grip 10 on the moulding constitutes a barrier between the contacts 11.
Patent GB-606454-A (GB)
Title: Change-speed mechanism particularly for a motor-vehicle
IPC: F16H61/02
Filed: 1946-01-15
Abstract: 606,454. Controlling change-speed gears. SINGER MOTORS, Ltd., and SHORTER, L. J. Jan. 15, 1946, No. 1319. [Class 80 (ii)] Three parallel selector-rods 20, 21, 22, controlling a four-speed and reverse gear, slide side-by-side in a flat U-shaped bracket 26 bolted to the underside of a detachable top cover-plate 14 of the main gear-casing 12, and have slots 29 for actuation by a cranked arm 30 on a selector shaft 31, which can slide and turn in a sleeve 38 also carried in the cover plate. The other end of the sleeve 38 carries a ball-mounted shift-lever 34 engaging a cranked arm 33 on the other end of the selector shaft 31 for turning and sliding the latter. The entire selector mechanism can therefore be removed by removing the cover plate 14. In its turning movement, during which the arm 30 selects amongst the three shift-rods 20-22, the arm 30 of the selector shaft 29 also turns an interlock 44 which cannot move axially and has spaced side cheeks 45, 46 which lock the appropriate two shift-rods in neutral whilst the selected remaining rod is moved axially to a gear position by axial movement of the selector shaft 31. A spring-plunger 51 opposes turning movement of the selector shaft in the direction to engage the reverse shift-rod 20, and detent-plungers 55 locate the shift-rods in gear and neutral positions. The shift-rods 21, 22 are identical, having detent notches 58 at both ends to permit them to be used with their shift-forks 16, 19 at opposite ends. The reverse shift-rod 20 is connected by a link 17 with its shift-fork. Specification 601,433 is referred to.
Patent GB-710977-A (GB)
Title: Improvements in or relating to soldering appliances
IPC: B23K1/06
Filed: 1952-01-16
Abstract: 710,977. Soldering-irons. SIEMENS SCHUCKERTWERKE AKT.-GES. Jan. 16, 1952 [April 30, 1951], No. 1324/52. [Class 83 (4) In a soldering appliance, the soldering member of which is excited into sonic or supersonic oscillations by a magnetostrictive oscillatory element, the oscillating element either oscillating a soldering bit or itself forming the soldering bit 1, the oscillating element forming the soldering bit 1 or the oscillating element and bit are hollow for the continuous passage of solder 3 to the operating end of the bit. The exciting winding may be dimensioned so that the heat generated by the oscillating element is sufficient to melt the solder and an additional heating device 4 is provided on the end of the bit 1. Means such as a spring may be provided to feed the solder to the end of the bit.
Patent GB-470167-A (GB)
Title: Improvements in and relating to apparatus for maintaining constant the amplitude of forced mechanical oscillations
IPC: G01N3/38
Filed: 1937-01-18
Abstract: 470,167. Automatic control systems. SCHENCK EISENGIESSEREI UND MASCHINENFABRIK DARMSTADT GES., C. Jan. 18, 1937, No. 1499. Convention date, Jan. 18, 1936. [Class 38 (iv)] Amplitude of oscillation of material under test is maintained constant by a contact member C fixed to the mass A under test and co-operating with one or more contacts E to short circuit a resistance F for a period during each oscillation varying with the amplitude. The mass A is driven by an electric motor B so that it oscillates at a frequency just below that required for resonance. The resistance F may be in the field circuit of the motor or it may constitute the operating coil of a carbon pile or other regulator in the field circuit. In another arrangement, Fig. 8, it forms the coil Gl of a balanced relay N adapted to control a reversible motor O adjusting a resistance in series with the motor field. In order to obtain correction proportional to the amplitude, two or more contacts are used and the normal distance between the contact member and each contact is progressively increased as indicated in Fig. 5. Increasing the number of contacts reduces the load on each.
Patent GB-488169-A (GB)
Title: Improvements relating to paint brushes
IPC: A46B3/00
Filed: 1938-01-17
Abstract: 488,169. Brushes; hand-tool handles. STOCKER, E. O. Jan. 17, 1938, No. 1543. Convention date, Jan. 22, 1937. [Classes 19 and 61 (i)] One or more brushes are mounted in sockets A, Fig. 1, attached to flexible laths B adjustably set in a multiple handle C. The laths may be adjusted by set screws D. Relatively short fibres may be used and brushes of different widths and flexibilities are available. Individual brushes may be detached and used separately in the same or another handle. A single wide brush E, Fig. 4, is shown mounted on a flexible sheet metal stem F riveted to a handle at G.
Patent GB-321117-A (GB)
Title: A new or improved method of freezing fish
IPC: A23B4/06
Filed: 1929-01-16
Abstract: 321,117. Governor & Company of Adventurers of England Trading into Hudson's Bay, and Townsend, C. Jan. 16, 1929. Cooling fish.-Fish are frozen while floating vertically in a tank through which cold brine is circulated. The fish are attached to hooks secured to a metal frame immersed in the brine.
Patent GB-851706-A (GB)
Title: Improvements relating to the manufacture of metal members or constructional parts
Inventor: BAILEY RICHARD WILLIAM
IPC: B21K1/44
Filed: 1956-01-17
Abstract: A metal member, submitted in service to stress and strain at elevated temperatures, is subjected to a treatment consisting of securing the member to a rigid body having a higher co-efficient of expansion than the member, heating the assembly to a temperature at or above that to which the member will be subjected, continuing the heating to produce a plastic deformation in the member and then cooling.  A ferritic steel bolt or rod may be secured in a block of austenitic steel, the cross-sectional area of which is large compared with the rod or bolt, and the assembly heated, the difference in co-efficients of expansion producing a plastic deformation in the rod or bolt.  If the bolts are difficult to remove from the block their length may be temporarily increased by passing an electric current therethrough without heating the block.
Patent GB-470566-A (GB)
Title: Apparatus for making persons and objects invisible
IPC: G09F13/12
Filed: 1936-01-17
Abstract: 470,566. Illusion or display apparatus. PRIBIL, I. Jan. 17, 1936, No. 1614. Convention date, Jan. 18, 1935. [Class 132 (i)] [Also in Group XVIII] In a Pepper'a Ghost illusion device, the observation and side compartments A<1>, A<2>, are symmetrically arranged with respect to the glass plate B to form an L shaped unitary casing. The compartments have a viewing aperture D and the lamps F<1>, F<2 >are controlled in known manner so that as one lamp is dimmed the other is brightened and vice versa so that the average intensity of illumination appears constant. According to the Specification as open to inspection under Sect. 91, screens G, Fig. 6 (Cancelled), may be provided so that the lamps F<1>, F<2> project light directly only on to the backgrounds of the compartments A<1>, A<2>, and a supplementary lamp F<3> is provided illuminated just before or synchronously with F<2> to provide extra illumination in the side compartment A<2> since the glass B does not reflect all the light therefrom. Fig. 5 (Cancelled) shows one manner of connecting the lamp F3 with lamps F<1>, F<2> for optical balance purposes. The background B<2>, Fig. 4 (Cancelled), may be rotatable about the axis o to produce further effects and a four part rotating stage P is provided in the compartment A<2>. A similar device may also be provided in compartment A<1>. For the purpose of rendering parts only of persons or objects invisible, the parts which are to remain visible are coated, for example, with a radium or uranium salt and maintained visible in the observation compartment A<1>, Fig. 6, (Cancelled) by ultra violet light from a quartz lamp Q passing through a filter Q<1> eliminating all other light. This subject-matter does not appear in the Specification as accepted.
Patent GB-674700-A (GB)
Title: Improvements in and relating to electric welding control systems
IPC: B23K11/24
Filed: 1950-07-06
Abstract: 674,700. Control systems for resistance welding. BRITISH THOMSON-HOUSTON CO., Ltd. July 6, 1950 [July 21, 1949], No. 16924/50. Class 38 (iv). Back-to-back resistance welding ignitrons 5, 6 are controlled, so as to pass increasing current as the weld proceeds, by so controlling the phase of the voltage applied to a peaking transformer 24 for the firing valves 7, 8 that the firing-point is progressively advanced, phase control being effected by a condenser 10 which controls the conductivity of hard valve rectifiers 36, 37 arranged, when conducting, to form a variable shunt (through transformers 35) on a " heat control " rheostat 31 which forms one element of a phase-shift bridge through which the transformer 24 is supplied, the other elements of the bridge comprising capacitors 28, 29, inductor 27b and resistor 27. A capacitor 38 charged over a rectifier 39 normally holds the rectifiers 36, 37 non-conducting, but upon closure of a weld-initiating switch 51 (and the accompanying actuation of a contactor 49 and conduction of an initiating valve 46) condenser 10 commences to charge and applies a progressively increasing " turn-on " voltage to the grids of rectifiers 36, 37. Timing of the weld is effected by normally non-conducting valves 11, 12, the former being held off by D.C. bias obtained from a potentiometer 18 and the latter (which is arranged to trail valve 11) by A.C. bias obtained from transformer 25. Valve 11 conducts, upon actuation of the initiating contactor 49, as a result of depression of cathode potential consequent upon change-over of'contacts 49b, 49c, the cathode potential subsequently rising as condenser 10 charges and eventually terminating conduction. During the conducting period, a transformer 13 fed through valves 11, 12 generates a voltage in the grid circuits of the firing valves 7, 8 which nullifies a hold-off voltage obtained from a transformer 26 so as to allow the peaked voltage from transformer 24 to be effective. In a modified arrangement the charging voltage for condenser 38 is obtained through a transformer shunting the " heat control " rheostat 31, a change-over contactor actuated in response to conduction of the timing valves providing for reversal of charge.
Patent GB-718828-A (GB)
Title: Improvements in or relating to apparatus of the kind including a waveguide
IPC: H01Q13/06
Filed: 1952-01-21
Abstract: 718,828. Waveguides. GENERAL ELECTRIC CO., Ltd., and FISHER, F. J. Jan. 21, 1953 [Jan. 21, 1952], No. 1716/52. Class 40 (8). [Also in Group XL(c)] Two spaced couplings in a rectangular waveguide are adapted to transfer energy propagated in two different modes and are separated by a mode filter. The couplings, in the form of probes 7, 8, lie at right angles to each other and are disposed respectively at distances #/2 and # from the open end of the waveguide 1. They are excited respectively by waves propagated in the H 01  mode having their electric fields polarized in planes parallel to different sides of the waveguide. The mode filter 16, spaced #/4 from the probe 7, acts as a reflector for the energy associated with the probe 7 and as an attenuator for the energy associated with the probe 8. It comprises spaced parallel wires 17 attached to a frame 18 which is e'ectrically connected to the walls of the waveguide by fingers 23. Additional wires 19 lying directly behind wires 17 prevent spurious resonances behind the filter 16. The frame is adjustable along the guide in slots 21. The guide is terminated by an adjustable metal plunger 11 mounted upon a rubber disc 12 which is a close fit in the guide. Metal fingers 14 electrically connect the plunger to the guide. To prevent mismatch at the open end of the guide (which may be directed towards a reflector) inductive loading in the form of two wires 28 may be provided. The guide may be sealed by a mica window 24.
Patent GB-273599-A (GB)
Title: Improvement in safety devices for high tension lines
IPC: H02B5/00
Filed: 1927-01-20
Abstract: 273,599. Jacobson, O. Jan. 20, 1927. High-potential switches. -Relates to high-tension air-break switches of the kind in which the the bridging switch member is in the form of an enclosed fuse with blade contacts 11, 12 at its ends, the fuse container 13 being provided at or near its mid-point with a metal clamp 16 for connecting it to the links 17 of the switch-operating mechanism which is usually actuated from the ground by a pole such as 19. The operating mechanism including the clamp is earthed, and, according to the invention, in order to avoid the destructive action on the fuse of corona discharge between the fuse and the surrounding clamp a short length of fuse 14 is employed outside the neighbourhood of the clamp connected with a stout metal rod 20 between which and the clamp the corona discharge occurs without serious deleterious effect. In a modification, Fig. 3, the fuse 14 extends from end to end of its containing tube 21 which, however, is arranged remote from the insulator 13 to which the operating clamp 16 is secured. The arrangements are shown in Fig. 1 as applied to a three-phase switch fuse in association with a step-down transformer 2 mounted on the supporting poles 1.
Patent GB-1085901-A (GB)
Title: Fermentation apparatus
Inventor: RYDER ELIZABETH NANCY
IPC: C12M1/00
Filed: 1964-01-15
Abstract: <PICT:1085901/C6-C7/1> Apparatus for carrying out a continuous process for the production of a chemical substance by fermentation comprises two or more fermentation vessels and a transfer valve between each pair of vessels whereby a fermentation medium may be metered between one vessel and another.  The transfer valve, as shown, for metering fermentation medium from a fermentation vessel 1 to a second fermentation vessel 10 consists of a plug-cock or ball-cock 4 providing a cavity 5 which in one position communicates with the fermentation medium in the vessel 1 to fill the cavity 5 and in another position communicates with the vessel 10 to empty the cavity.  The cock may be continuously rotated or oscillated.  An example is directed to the manufacture of itaconic acid by fermentation of a nutrient medium containing glucose and minor amounts of ammonium sulphate, magnesium sulphate, corn steep liquor and itaconic acid, employing Aspergillus terreus.  The fermentation proceeded under steady state conditions in two fermentation vessels constituting cell production and product formation stages, respectively.  The vessels were fitted with gas outlets such as to maintain pressures slightly in excess of atmospheric pressure within them.  Two or more cell production stages may be employed.  Normally, the stages will be separated one from the other by the use of different vessels for each stage, but sub-divided large stages may be employed.ALSO:Itaconic acid is prepared by fermentation of a nutrient medium containing glucose and minor amounts of ammonium sulphate, magnesium sulphate, corn steep liquor and itaconic acid, employing Aspergillus terreus.  The fermentation proceeds in a continuous process under steady state conditions in two fermentation vessels constituting cell production and product formation stages, respectively.  The vessels are fitted with gas outlets such as to maintain pressures slightly in excess of atmospheric pressure within them.  Two or more cell production stages may be employed. Normally, the stages will be separated one from the other by the use of different vessels for each stage, but sub-divided large stages may be employed.
Patent GB-138087-A (GB)
Title: Improvements in the production of fibre strips or rovings, for the manufacture of yarn, twine, cord and the like from paper pulp or similar fibrous material
IPC: D21F1/00
Filed: 1919-10-20
Abstract: 138,087. Turk Ges. Jan. 2, 1919, [Convention date]. Addition to 134,212. Felts.-In the machine described in the parent Specification for producing fibre strips or rovings for the manufacture of yarn, twine, cord &c. from paper pulp &c., the endless cloth or apron which conducts the fibre strips away from the paper machine, and from which the strips are removed from its under side, is made of cotton, linen, asbestos or other vegetable or mineral fibres having a greater capillary attractive power than wool. Flannelette is a suitable fabric.