baber/WOPTO huggingface dataset:
Patent GB-451629-A (GB)
Title: Improvements in and relating to ships' hatches
IPC: B63B19/24
Filed: 1935-06-24
Abstract: 451,629. Ships' hatches. MORTON, R., 22, Billiter Street, London. June 24, 1935, No. 18057. [Class 113 (i)] Hatch cover sections are locked in the positions on the hatch coaming by pivoted catches 4 which are turned to take into recesses 9 provided in the ends or sides of the sections 1. The recesses 9 are closed at the bottom by plates 8 which are slotted to permit the lowering of the sections into position when the catches 4 are in their raised, inoperative position. Other hatch sections associated with sections provided with locking-devices as described above are secured in position by depending hooks 12, Fig. 7, which after passing through slots 13 in the coaming are slid to engage with the edge 14. The edges of the sections not provided with locking-devices may be provided with noses which engage with complementary sections on the hatch beam or coaming. The abutting edges 2, 3 of the sections may be bevelled as described in Specification 323,294, [Class 113 (i)].
Patent GB-603146-A (GB)
Title: Improvements in and relating to electrical servo-motor control systems
IPC: G05D3/12
Filed: 1943-11-02
Abstract: 603,146. Correspondence control. SPERRY GYROSCOPE CO., Inc. Nov. 2, 1943, No. 18129. Convention date, Nov. 2, 1942. [Class 40 (i)] [Also in Group XXXVII] A polyphase servomotor has separate alternators supplying its different phases, and control of motor speed and direction of rotation is effected by field control of one of the alternators. A two-phase squirrel-cage motor 30, Fig. 1, has phase windings 31, 33 supplied, respectively, by alternators 27, 21 driven by a single motor 24, the field 28 of machine 27 having constant excitation from a D.C. supply 25, whilst field 20 of the other machine may be variably and reversibly excited from a phase - sensitive rectifier 18 and variable transformer 14, both fed from an A.C. source 16. The magnitude and polarity of the output voltage of rectifier 18, and consequently the speed and direction of rotation of motor 30, depends on the position of the movable coil 12 of transformer 14 in relation to its fixed coil 15. The system is shown more fully in Fig. 2, in which the control is such that a table 75 driven by motor 30 follows the movement of a remote control handle 10. The handle is connected to the moving transmitter coil 51 of a selsyn system 50-59, and the receiver output coil 59 (corresponding to coil 15 in Fig. 1) forms one input circuit of a phase-sensitive rectifier 60, the other input being direct from the A.C. source 16, which also energizes the.coil 51. A mechanical repeat-back connection 77-80 is provided between the table and receiver coil 59, so that after displacement of the handle 10 the motor drives both the table and receiver coil 59 into positions of correspondence with the transmitter coil 51. The output from coil 59 then falls to zero and the motor stops.
Patent GB-887195-A (GB)
Title: Velocity modulation electron discharge device
IPC: H01J25/24
Filed: 1958-06-06
Abstract: 887,195. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES Ltd. Tune 6. 1958 [June 12, 1957]. No. 18149/58. Class 39(1) In a multi-resonator klystron amplifier including a set of tunable resonators 11 spaced apart along the electron beam path, each resonator 11 is adjustably coupled to a respective further resonator 13 remote from the beam path, and a respective resistance load 18 is adjustably coupled to each further resonator intermediate the input and output resonators, the resonators and coupling arrangements being such as to provide broad band stagger tuning of the amplifier. As shown resonators 11 are rectangular waveguide resonators, tuned by means of pistons movable in a direction perpendicular to the plane of the drawing, and resonators 13 include coaxial line resonators coupled to resonators 11 by means of inductive coupling loops 14 adjustable by means of rotatable centre conductors 16. Resonators 13 are tuned by moving sliding plungers 15 and/or varying the size or depth of penetration of loops 14. Resistance loads 18 are coupled to resonators 13 through variable capacitive couplings 19. A resistive load 27 is inductively coupled to the input resonator and the radio frequency signal to be amplified is capacitively coupled to the corresponding coaxial line resonator. The rectangular waveguide output resonator 21 is coupled through an adjustable iris 23 to a further rectangular waveguide resonator 22, the radio frequency output being obtained through capacitive coupling 25. The load resistors 27, 18 and 18a may be air-cooled while resistors 18b and 18c may be coaxial line water-cooled loads.
Patent GB-804051-A (GB)
Title: Improvements in bicyclo-nonanols and ethers thereof and a new composition of matter with a woody amber-like scent, and process of making same
IPC: C11B9/00
Filed: 1955-06-23
Abstract: The invention comprises 4,8,8-trimethyl-9-methylene - (1,3,3) - bicyclo - 4 - nonanols and ethers thereof having the structure: <FORM:0804051/IV (b)/1> wherein R is a member of the group consisting of hydrogen and alkyl radicals having from 1 to 4 carbon atoms and a method for the preparation thereof characterized by the treatment of dihydro-a -ionone in a medium formed at least partly of an alkanol in which the alkyl group is the desired alkyl group with hydrochloric or sulphuric acid or boron trifluoride at a temperature at most equal to ordinary temperature.  The use of a mineral acid in aliphatic monohydric alcohol generally in the treatment of dihydro-a -ionone is also referred to.  In examples the methyl, ethyl, propyl, isopropyl, butyl and primary isobutyl ethers of 4,8,8-trimethyl-9-methylene-(1,3,3)-bicyclononanol-4-one are prepared by adding dihydro-a -ionone to solutions of dry hydrogen chloride in appropriate alcohols (1); 4,8,8 - trimethyl - 9 - methylene - (1,3,3)-bicyclononanol - 4 is obtained by adding dihydro-ionone to a secondary butanol solution of dry hydrogen chloride, treating the reaction product with trimethyl borate and distilling to obtain a residue of the borate ester of the desired alcohol and hydrolysing to obtain the free alcohol which separates into liquid and crystalline fractions from which allophanates are prepared (2); concentrated sulphuric acid is employed instead of hydrogen chloride in a similar process (4); the ethyl ether derivative of the alcohol is produced by treating dihydro-a -ionone with cold ethanolic solutions of sulphuric acid (3) and boron trifluoride (5).
Patent GB-696257-A (GB)
Title: Electrical transformer
IPC: H01F27/34
Filed: 1948-10-26
Abstract: 696,257. Transformers. MACKERETH, E. J. Oct. 26, 1948, No. 18178/51. Divided out of 696,201. Drawings to Specification. Class 38 (ii). An electrical transformer comprises an electrically conductive case, a lead-in conductor extending into the case in insulated relation therewith, a primary winding connected at one end with the case and at the other end with the lead-in conductor, the primary winding being formed of portions of conductor of progressively decreasing cross section from the winding end connected with the lead in conductor to the winding end connected with the case thereby varying the self-capacitance of the winding from a large value in the vicinity of the lead-in conductor to a small value in the vicinity of the case, a secondary winding and terminals extending from the case in insulated relation thereto. The larger sectioned portions of the primary winding are provided with heavier insulation and are of substantially the size of the lead-in conductor, the smaller sectioned portions being of substantially the size of the secondary winding. Specification 696,201 is referred to.
Patent GB-292920-A (GB)
Title: Improvements relating to the moulding of materials, such as molten metals or alloys
IPC: B22D17/08
Filed: 1928-06-22
Abstract: 292,920. Jacquemont Du Donjon, N. P. N. V. June 25, 1927, [Convention datel. Void [Published under Sect. 91 of the Acts]. Casting-machines. - A mould for casting metals, alloys, &c. has, in addition to the cavity 6 corresponding to the article to be cast, a recess 8, communicating therewith, into which the charge of molten metal is poured and from which it is forced into the cavity 6 by a plunger 9 when the mould has been closed. The recess 8 may be lined with heat insulating material 10. In a modification the recess 8 is to one side of the cavity 6 and the plunger 9 enters it horizontally.
Patent GB-1147876-A (GB)
Title: Mortice and tenon joint
Inventor: ROSS PETER MCGREGOR
IPC: F16B12/20
Filed: 1966-04-27
Abstract: 1,147,876. Mortise and tenon joints. W. H. A. ROBERTSON & CO. Ltd. 13 April, 1967 [27 April, 1966], No. 18374/66. Heading A4H. A wedge for closing the gap between a tenon and a recess comprises an undulating strip of metal (Figs. 2, 3) or a strip of spring steel having spaced protruberances (22) on each side (Fig. 4) or two resilient metal strips 10, 11 connected together, one face having cut away portions 13 and the other face having a sinuous configuration.
Patent GB-403722-A (GB)
Title: Improvements in or relating to the manufacture of cases, boxes or crates of timber or the like comprising toothed metal binding strip, and a method of producing the strip
IPC: B65D6/36
Filed: 1932-06-30
Abstract: 403,722. Spiked plates. NO-NAIL CASES PROPRIETARY, Ltd., 39, New Broad Street, London.-(Bohm & Kruse Maschinenfabrik ; Hemelingen, near Bremen, Germany.) June 30, 1932, No. 18556. [Class 89 (ii).] In cases, boxes, or crates of timber &c., of the kind in which two sides, the bottom and also in some cases the top are bound and hinged together by flanged metal strips attached along the edges the strip is formed with teeth c cut from the flat body a of the strip between its free edge and an upturned flange b at its other edge. The ends may be arranged so as to engage in grooves left between the flanges b and the end edges of the sides.
Patent GB-1440532-A (GB)
Title: Padded vehicle seating assembly
IPC: B29C45/00
Filed: 1974-04-29
Abstract: 1440532 Upholstered seats FORD MOTOR CO Ltd 29 April 1974 [4 May 1973] 18586/74 Heading A4M  A vehicle seat includes seat and backrest cushions with resilient foam bodies 42, 49 bonded to respective cover skins 41, 46 with integral peripheral formations 45, 48 each defining a resilient ring which is snapped fitted within an associated, rigid annular subframe 15, 31 around which a peripheral portion of the skin is wrapped. The subframes support sinuous springs 22, 29, 54 some of which provide a soft edge and support a border wire 24, 53.
Patent GB-1068062-A (GB)
Title: Improvements in paper roll profiler
IPC: G01B5/08
Filed: 1964-05-05
Abstract: 1,068,062. Measuring linear dimensions electrically; determining diameter variations. OXFORD PAPER CO. May 5, 1964 [Oct. 2, 1963], No.18609/64. Headings G1M and G1N. A gauge for measuring variations in the diameter of a roll, e. g. of paper, over its whole width comprises a bar 4, Fig.2, located parallel to the axis of the roll by pads 6, 8, Fig. 1, (not shown) and a sliding bush 28 on the bar carrying two divergent arms 18, 20 with feelers 32, 38 located at their ends and bearing against the roll, the feeler 38 being connected to a differential transformer 14 the output of which records the variations. The sliding bush is driven by a motor (44) to traverse the feelers from end to end of the roll. Set screws 30, 34 enable the probes 32, 38 to be adjusted relatively to the arms 18, 20, so that they can be set on a diameter of rolls of varying sizes.
Patent GB-1508788-A (GB)
Title: Electric power supply track
IPC: H02G5/04
Filed: 1975-05-03
Abstract: 1508788 Mining installations PITCRAFT Ltd 3 May 1975 18609/75 Heading E1F [Also in Division H2] The subject matter is substantially the same as that of Specification 1508786, but the claims concern the seal and the jointing of adjacent lengths of track.
Patent GB-257240-A (GB)
Title: Improvements in steam generators
IPC: F23M5/08
Filed: 1926-07-26
Abstract: 257,240. Wood, W. R. Aug. 20, 1925, [Convention date]. Pulverulent-fuel furnaces.-In a boiler of the kind described in Specification 237,194 one of the walls of the boiler is constituted by the tubes of a boiler unit and the products of combustion escape at the upper part of the unit and then pass downwardly over its rear tubes to the uptake, pulverized fuel and air being admitted to the furnace enclosed by the boiler so as to produce intense combustion. As shown in Fig. 1, the front and side walls of the furnace are constituted by ribbed tubes 8, 7 respectively while the rear wall is formed by a boiler unit 10 connected to upper and lower drums. The tubes 7, 8 are connected to upper and lower headers connected to the upper and lower drums of the unit 10 by tubes 11, 12, 18, 20. The front and rear rows of tubes of the unit 10 are provided with ribs terminating short of the upper and lower drums respectively so as to direct the gases through the outlets 23, 24 to the stack 25. Air is supplied by a fan 32 to an air heater 31 from which it passes through a conduit 33 and damper controlled inlets 30 to compartments 27 formed between the furnace wall and the tubes 7, 8 and separated by refractory slabs 28 resting on studs 29. The heated air enters the furnace through openings 22, formed by omitting portions of the ribs on the tubes of the front wall, and meets the fuel injected downwardly through burners 34. Additional air is admitted through damper controlled openings 38 in the base of the furnace. In the modification shown in Fig. 3, burners 34a are arranged at the bottom of the combustion space and at the four corners thereof so as to produce whirling of the combustion products. Heated air is supplied through a duct 33a divided into upper and lower compartments, the lower compartment communicating with openings 35 around the burners and the upper compartment delivering through jet-like openings above the level of the burners. Specification 214,589 also is referred to.
Patent GB-424044-A (GB)
Title: An improved oscillatory armature electromotor
IPC: H02K33/06
Filed: 1934-06-25
Abstract: 424,044. Oscillating motors. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. June 25, 1934, No. 18681. Convention date, July 13, 1933. [Class 35] In an oscillatory armature electric motor operating with an alternating current supply, the armature 3 is a permanent magnet formed of a substance of high coercive force, e.g. cobalt steel and is adapted to oscillate at the frequency of the supply. The armature spindle 7 is secured to one end of a restoring spring 4, the other end of which is clamped to the stator 1 at 5. The spindle has a reduced portion 8 carrying freely a pinion 9 having on each side a hub of the same diameter as the adjacent portion of the spindle. A spring 10 coiled on one hub and the spindle transmits movement in one direction to the pinion 9 and a second spring 11 coiled on the other hub and secured at one end to the bearing plate 12 prevents backward rotation of the pinion. The motor is suitable for driving clock winding mechanism.
Patent GB-771413-A (GB)
Title: Adjustable actuator cylinder for disc brake
Inventor: CHAPIN IRVING FRANK
IPC: F16D65/56
Filed: 1955-06-28
Abstract: 771,413. Disc brakes. BENDIX AVIATION CORPORATION. June 28,1955, No. 18682/55. Class 103 (1). A disc brake is actuated by fluid pressure admitted to an annular chamber 44 having a piston 46 therein, the part in which the annular chamber 44 is formed being able to be moved axially so as to take up wear of the friction elements by displacement on the screwed surface of member 56 which can be rotated by pinions 66 meshing with its internally-toothed surface 56. The pinion 66 is carried on a shaft 68 having rotatable therewith through a oneway clutch device comprising a coil-spring 72, a further pinion 70. As shown in Fig. 6, the pinion 70 may be rotated by an arcuate shaped piston 76, which may be moved against spring 80, by fluid-pressure admitted at port 86 to space 84. If wear of the friction pads should be such that the distance " d," shown in Fig. 5, is exceeded, the member 120 is carried forward by the pressure plate 42 so that the inclined surface 118 by engaging lever 116 rotates spindle 112 which through lever 114 lifts valve spindle 98, Fig. 4, to admit pressure fluid to port 96 and thus through piston 76 to rotate spindle 68 to cause axial adjustment of the part containing the actuator cylinder 44 to take up wear.
Patent GB-472311-A (GB)
Title: Improvements in and relating to machines for dispensing or delivering lengths of sealing tape from a roll
IPC: B65H35/00
Filed: 1936-03-20
Abstract: 472,311. Feeding webs. MASSEY, O. March 20, 1936, No. 18718 /37. Divided out of 471,984. [Class 100 (i)] A machine for dispensing lengths of sealing tape .from a roll comprises an oscillatory operating lever, several length-determining devices consisting of independently adjustable stops for contact with the lever, and means on the lever for selectively engaging any one of the stops, the engagement of the stops being dependent on the setting of the means on the operating lever. The operating lever 1, Fig. 1, is loose on a shaft and actuates a toothed wheel 3 by means of a pawl 4 and is returned by a spring 6 against one or other of a series of stop pins 8. A front stop 25 for the lever is adapted to disengage the pawl 4. The wheel 3 is connected to the feed means for the tape by gearing 5. The stop pins 8 are carried by individual springy arms 7, loose on the shaft 2 and may be set in any of a number of recesses 9, Fig. 4, in the rim 11 of a casing 10 secured to the machine frame, and graduated to show the corresponding length of feed. The pins 8 increase in length in the direction of the return stroke of the lever 1, and are selectively engaged by the lever 1, by means of a pin 16, mounted on a slidable and rotatable shaft 17 in the lever 1. The pin 16 moves in a slot 20 with two or more offsets, into any of which it may be set by means of a knob 19 on the shaft 17, so that it passes by all the pins 8 until it reaches the desired one.
Patent GB-1406168-A (GB)
Title: Vibratory plate compactor
IPC: E02D3/046
Filed: 1973-04-18
Abstract: 1406168 Vibratory compactor KOEHRING CO 18 April 1973 [10 Jan 1973] 18731/73 Heading E1G [Also in Division F2] The 'base plate 10 of a vibratory compactor has two parallel, spaced, rotary eccentric shafts 31 each being rotatable in the opposite direction to the other by a separate hydraulic motor 35, 44 whereby, by using one shaft or the other, the plate may be caused to advance in one direction or the other. The eccentric shafts are mounted in a fluid filled housing 15. A motor and pump for the hydraulic fluid is mounted through the intermediary of shock absorbers 52 on brackets 18. The pump includes a three way valve for controlling either of motors 35, 44 or for allowing the machine to idle.
Patent GB-348929-A (GB)
Title: Improvements in pneumatic despatch apparatus
IPC: B65G51/28
Filed: 1930-06-19
Abstract: 348,929. Pneumatic dispatch apparatus. LAMSON PNEUMATIC TUBE CO., Ltd. and BURL, J., 132, Cheapside, London. June 19, 1930, No. 18777. [Class 116.] In control apparatus for pneumatic dispatch apparatus of the type described in Specification 2607/13, [Class 116, Shop &c. accessories], the gravity piston which controls the weighted member which closes the door or main valve 7 is replaced by a diaphragm 13 fitted with a weighted rod 12 and one side of the diaphragm is adapted to be placed under the suction of the air line 19 of the system. Further, the housing 22 of the valve 25 controlling the diaphragm, which is of oval shape, is disposed between the pipe 19 and the terminal 5 and on the side of the latter opposite to the diaphragm chamber 14. When the valve 7 is lowered and a carrier inserted, a paddle 31 is raised so that a lug thereon causes the depression of a member 28 which allows the spindle 26 of a valve 25 to fall. Communication between the suction line 19 and the upper part of chamber 14 is thus cut off, but the latter communicates with the atmosphere through conduits 20, 27 and the adjustable opening 27b. The diaphragm 13 therefore slowly falls and the rod 12 is lowered until the weight thereon depresses a pin 37 to move a catch 18 to release a weight 10 which thereupon closes the valve 7 through a flange 11. The member 31 has meanwhile resumed its former position, the lug 28 being raised to open the valve and the valve chamber being put under suction to restore the parts to their original positions. If a second carrier is inserted before the paddle 31 has moved into its original position, the carrier engages a lever 29, which protrudes into the terminal in the lowered position of the lug 28, thus opening the valve. During its descent the rod 12 actuates a lever 33 to grip lightly the valve spindle 26, so that the valve is held against " fluttering," the spindle being released on return movement of the rod.
Patent GB-1308103-A (GB)
Title: Polymerisation of vinyl chloride
IPC: B01J8/38
Filed: 1971-06-03
Abstract: 1308103 Polymerizing vinyl chloride SOLVAY ET CIE 3 June 1971 [10 June 1970] 18797/71 Addition to 1124237 Heading C3P Vinylchlorideis polymerized or copolymerized in the absence of a liquid phase and in the presence of a free radical yielding polymerization catalyst and an inert solid introduced before commencement of polymerization, the polymerization temperature between 40 and 80 C. and the pressure being greater than that at which the polyvinyl chloride/gaseous vinyl chloride interaction is considerably modified (defined) and below the saturated vapour pressure of vinyl chloride at the polymerization temperature. The inert solid may be asbestos, silica or perlite, but is preferably PVC; and a suitable catalyst is lauroyl peroxide.
Patent GB-498750-A (GB)
Title: Improvements in connection with photographic contact-printing machines
IPC: G03B27/22
Filed: 1937-07-07
Abstract: 498,750. Eddy-current brakes. HALL, B. F., and HALL & CO., Ltd., B. J. July 7, 1937, No. 18877. [Class 103 (i)] [Also in Groups XX and XXVI] A photographic contact printing machine of the type in which a source of light is moved over the printing area by means of a train of gears A actuated by a weight or spring, comprises a mag net E or magnets support ed on a spindle e<1> revolv ably mounted on the framework B of the gear train, a disc D of higl conductivity metal rigidly mounted on the high speed spindle a<1> of the gear train and running between the poles of the magnet or magnets, and means for adjusting the position of the magnet or magnets to vary the number of magnetic lines of force cut by the revolving disc. Permanent or electromagnets may be employed. The magnet E can be adjusted by means of an indicator e<2> moving over a graduated scale. As shown, the gear train is actuated by a weight attached to a cord f wound on a drum F, the gear train being started and stopped by operating a handle h<1> on a spindle H on which is mounted a cam moving a brake spring h<2> on or off the spindle a<1>.