baber/WOPTO huggingface dataset:
Patent GB-614962-A (GB)
Title: Improvements in or relating to the mounting of jet-pipes in jet-propulsion-units
IPC: F02K1/80
Filed: 1946-07-16
Abstract: 614,962. Jet-propulsion plant. LOMBARD, A. A., OULIANOFF, G., and JANES, R. July 16, 1946, No. 21303. [Class 110 (iii)] [Also in Group XXVIII] A mounting for one end of a jet pipe on another part of a jet-propulsion unit of the type comprising two co-operating annular seatings secured to the pipe and the unit respectively and having the seating face of one of the seatings spherical or quasi-spherical about a point on the axis of the part to which it is secured and having the co-operating seating face cylindrical about the axis of the other part so that the pipe may be assembled to the unit by relative axial engagement of the seatings has means provided to interconnect the pipe and the unit to prevent the axial separation of the joint whilst allowing limited tilting movement in any sense and rotational movement between the pipe and the unit. A mounting ring 12, Fig. 2 bolted to the exhaust pipe 10 of a jet-propulsion unit, is provided with an annular external seating 15 which is a double chamfer or a portion of a sphere having its centre on the axis of the ring 12 in the plane of the seating 15. A second mounting ring 17, attached to the forward end of the jet pipe 11, is formed with a cylindrical seating 18 which fits as a spigot over the part-spherical seating 15. Attached to lugs 19 formed at the opposite ends of a horizontal diameter of the ring 17 are plates 20 which extend radially inward and engage a shoulder 16 formed on the ring 12 to prevent axial separation of the jet pipe and unit. A clearance between the end of the ring 12 and a shoulder 22 on the ring 17 allows limited tilting movement between the jet pipe and unit. The jet pipe is free to rotate. In another embodiment, Fig. 5, the seatings 23 and 26 are formed with external flanges 24, 27 which are castellated as shown at 28, 29. An external ring 30 formed with two internal flanges 31, 32 which are castellated so as to be complementary to the castellations formed on the flanges 24, 27 slides over the flanges and is then turned to bring its castellations into axial alignment with those on the two flanges and thus prevent axial separation of the two parts. The ring 30 is restrained from rotational movement by means of a locking plate 33 bolted to the flange 24 which engages one of the castellations in the ring 30. The clearance between the shoulder 35 of the ring 26 and the end of the ring 26 allows freedom for limited tilting movement as before. Specification 579,416, [Group XXVIII], is referred to.
Patent GB-779875-A (GB)
Title: Improvements in clutch-brake driving arrangements
IPC: F16D67/06
Filed: 1953-07-31
Abstract: 779,875. Disc brakes. ROTHENBORG SPECIALMASKINER FOR SY - INDUSTRIEN AKTIESELSKAB. July 31, 1953 [Aug. 1, 1952], No. 21336/53. Addition to 750,603 [Group XXIV]. Class 103 (1). [Also in Groups XXIV and XXXVII] In a clutch-brake driving arrangement (see Group XXIV), a pulley 44a is constructed as the driving clutch member. The inside of the pulley 44a. is formed with a cylindrical recess which receives a two-part driven clutch rnember comprising semi-cylindrical parts 102a, 103a, pivoted together at 104a, and rotationally fixed relatively to a shaft 96 by a dog 98a having projections 99b engaging slots therein. The cylindrical recess in the pulley 44a, which is rotatably mounted on the shaft 96, is of such a diameter that the two semi-cylindrical parts 102a, 103a do not touch it when they lie in a diametral plane relatively to the shaft; when they are rocked; i.e. into the Fig. 4 position, they engage the surface of the recess with points on their circumferences so that torque can be transmitted. The discs are rocked to this position by energizing an electromagnet winding 113a. A stationary brake member 109a also surrounds the discs and houses the winding 113a. The brake member has a core 117a having a freely rotatable ball engaging one side of a centre position 106a of the clutch member, the other side of which engages a spring 96a, normally biasing the clutch parts 102a, 103a into engagement with the brake member 109a. The core 117a is threaded into an axially slidable bush 115a in the brake member and is rotated to adjust its axial position, and hence the point of engagement of the driving and driven clutch members. Specification 779,876, [Group XXIV], is referred to.
Patent GB-832276-A (GB)
Title: Improvements in or relating to electro-acoustic transducers
Inventor: CRAGG WILLIAM DONALD
IPC: H04R1/38
Filed: 1957-07-05
Abstract: 832,276. Capacitor transducers. STANDARD TELEPHONES & CABLES Ltd. July 4, 1958 [July 5, 1957], No. 21382/57. Class 40 (4). In a capacitor microphone or receiver an electrode comprises a coating on a rigid porous non-conductive body. As shown in Fig. 1, the electrode is the back electrode 9 of gold on a base 6 of sand, glass, or nylon particles bonded together by a polyester or epoxy resin so that the base is rigid but porous. Alternatively the base may be made from sintered ceramic particles. The base 6 is formed in a circular well of a metal casing 5 and its upper and exposed face is moulded or ground to be either flat or to have a number of high points. A front electrode 8 is deposited on a terylene, polystyrene, or polymethyl methacrylate foil 1 which is glued to a mounting ring 2 either while tensioned or so as to be shrunk and tensioned afterwards. A spacing ring 7 and a clamping ring 12 mount the front electrode. Electrical connections are taken from the ring 2 and from a conductor 10 passing through the base 6. Deposition of a gold layer over the porous base 6 produces portions of the layer which bridge the interstices of the base material and are said to provide diaphragm resonances up to 10 kc/s. Where the surface of the base has a number of high points these may bear against the diaphragm 1 and increase its resonances to a range between 10 and 20 kc/s. In the Provisional Specification it is explained that the dielectric diaphragm 1 is polarized by a D.C. voltage of from 300 to 1500 volts across the electrodes applied for ten to fifteen minutes. It is said to be probable that polarization of the base 6 also takes place. The invention may be made bi-directional by the back-to-back arrangement of two transducers shown in Fig. 2 in which apertures 13 provide communication between the back electrodes 9A and 9B. Specification 438,672 is referred to.
Patent GB-733043-A (GB)
Title: Improvements in root crop topping machines
IPC: A01D23/02
Filed: 1952-05-07
Abstract: 733,043. Root-crop harvesters. RICHARDSON, G. W., BRIERLEY, T., and COURTLEY, A. Aug. 4, 1953 [May 7, 1952], No. 21385/53. Divided out of 732; 974. Class 6 (3). A root-crop topping machine comprises two inclined discs C which engage the plants and position a fixed cutter C<SP>1</SP> so that the tops are severed and two endless belts B, B<SP>1</SP> which grip and transport the tops after severing. The belts are guided by pulleys b<SP>3</SP>, b4 and b<SP>5</SP>, the pulleys b<SP>3</SP> being driven by bevel gearing b, a<SP>9</SP> from a transverse shaft a<SP>5</SP> which also drives a land wheel A<SP>4</SP> and is itself driven from a tractor rear wheel A<SP>2</SP>, the machine being connected to the tractor by a member A<SP>1</SP>. The front pulleys b<SP>4</SP> are mounted on members which are joined by a spring b<SP>8</SP> and are vertically adjustable by a handle c<SP>1</SP> each member carrying a pointed guide arm b<SP>9</SP>. The guides b<SP>9</SP> engage the tops or foliage on each side of a row and move the belts B, B<SP>1</SP> and discs C transversely to enable the adjacent portions of the peripheries of the discs to engage and ride up over the plants.
Patent GB-959537-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: THORN JAMES DOUGLAS
IPC: G21C5/08
Filed: 1962-06-04
Abstract: 959,537. Moderator structures. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 17,1963 [June 4, 1962], No. 21434/62. Heading G6C. In a nuclear reactor core structure, unconnected columns containing ferrite material are urged together by the pressure difference between the inlet and outlet points of the coolant flow. A retaining wall surrounds and is spread from the columns; it may be cylindrical in shape and formed of graphite blocks so as to function as a reflector. The wall is held together by circumferential elastic members and is self restrained against inward movement by its arch construction. In the event of a fault, resulting in the loss of a coolant pressure, the residure pressure within the column structure creates an outwardly directed force and the columns move outwardly until restrained by the wall. Specifications 782,922 and 850,014 are referred to.
Patent GB-1395915-A (GB)
Title: Industrial lift trucks
IPC: B66F9/14
Filed: 1972-05-08
Abstract: 1395915 Fork lift trucks LANSING BAGNALL Ltd 3 May 1973 [8 May 1972] 21443/72 Heading B8H [Also in Division F2] An industrial lift truck comprises lifting carriage (12) which is vertically movable on the truck mast (11), a turret head (13) mounted on the carriage (12) for sideways movement relative thereto, and a lead supporting structure (14) mounted on the turret head (13) for rotation relative thereto about a vertical axis, Fig. 1 (not shown), such rotation being effected by means of an electric motor so mounted on the turret head (13) which drives a gyral gear (51) and reversible gear train (52), Fig. 3 (not shown), the latter being in driving engagement with the structure (14), there being a frictional brake assembly 53 associated with the motor 50 to restrain the structure (14) against accidental rotation. The brake assembly comprises a pair of callipers 54 each having a brake shoe 80 which engages with a brake drum 57 mounted on the shaft 58 of the motor 50 when the latter is inoperative. On operating a switch 79 to operate the motor 50 a switch 78 is simultaneously operated to actuate an electric solenoid 55 which causes clockwise movement of an arm 70 and thus movement (to the right in Fig. 8) of a rod 65 against the action of a compression spring 73. The said rod has a taper 178 formed thereon which engages with a pair of balls 63, 64 against which one end of each of the callipers 54 engage respectively, and thus when the rod 65 moves to the right the balls 63, 64 move inwardly towards each other which permits the callipers 54 to pivot about their pivot points 59 under the action of a compression spring 60 outwardly to release the brake shoes 80 from the brake drum 57. When the motor 50 is stopped by operation of the switch 79 the brake re-engages.  The above referred to sideways movement of the turret head (13) on the carriage (12) is effected by means of an electric motor (37), Fig. 3 (not shown), which drives a pair of gears (31) and thus gears (30) mounted on shafts (29) located on the turret head, Fig. 4 (not shown), the gears (30, 31) and further gears (34) which mesh with the gears (30) being in engagement with respective racks (32, 33, 36) located on the carriage (12). A brake assembly similar to that described above is associated with the motor (37). A control system (not described) may be employed to effect simultaneous sideways movement of the turret head (13) and rotation of the load supporting structure (14).
Patent GB-127785-A (GB)
Title: Improvements in or relating to Open Hearth and like Furnaces.
Inventor: GRIGGS JOHN OLIVER
IPC: C10B29/06
Filed: 1918-12-23
Abstract: 127,785. Griggs, J. O. Dec. 23, 1918. Repairing-apparatus; screens for intercepting heat.-In connexion with open-hearth and other like furnaces, screens or shields are provided to form temporary covers for portions of the walls that may be broken down or worn. The shields 1 are arranged to slide in contact with the walls of the furnace, and are raised and lowered by cables 20 passing over pulleys and connected to ratchet-controlled winches 25. Each shield comprises a body portion consisting of a flanged plate 2, Fig. 3, lined with refractory bricks, and side wing portions 14 which can either be drawn back over the body portion or can be adjusted to form extensions thereof as shown in the left and right hand sides respectively of Fig. 3. The wing portions 14 are pivoted to arms 12, in turn pivoted to frames, which slide in roller trackways secured to the body portion. The wings, then extended, lie behind the buckstays C of the furnace bracing. The shield acts as a screen to protect the operators when permanent repairs are being effected.
Patent GB-1503857-A (GB)
Title: Production of chrysanthemic acid esters and homologues thereof
IPC: C07C69/743
Filed: 1976-05-25
Abstract: 1503857 Preparation of chrysanthemic acid esters CHEMINOVA A/S 18 May 1977 [25 May 1976] 21630/76 Heading C2C A process for the preparation of chrysanthemic acid esters and their homologues of the formula in which R 1  and R 2 , which may be the same or different, are hydrogen or an alkyl group having 1 to 6 carbon atoms, R 3  and R 4 , which may be the same or different, are an alkyl group having 1 to 6 carbon atoms, or a halogen atom, or, together with the carbon atom to which they are attached, form a cycloalkyl group, and R 5  is an alkyl group having 1 to 6 carbon atoms, comprises: (1) heating a lactone of the formula in which R 1 , R 2 , R 3 , R 4  and R 5  have the abovestated meanings, to an elevated temperature in the presence of an inert solvent to effect decarboxylation and obtain a lactone of the formula (2) reacting the lactone IX with a halogenating or hydrohalogenating agent and with an aliphatic alcohol R 5 OH, where R 5  has the abovestated meaning, to effect ring cleavage, halogenation and esterification to obtain an ester of the formula  in which X is chlorine, bromine or iodine, and (3) treating the ester X with a base to effect dehydrohalogenation and internal condensation whereby the desired product of Formula I is obtained.
Patent GB-576777-A (GB)
Title: Improvements in and relating to pipe lines
IPC: F16L15/00
Filed: 1943-12-30
Abstract: 576,777. Pipe joints. IRAQ PETROLEUM CO., Ltd., and KELLY, F. R. Dec. 30, 1943, No. 21859. [Class 99 (i)] A coupling adapted to be welded into a pipe line comprises a sleeve a and an inner tubular member b screwed fluid-tightly thereto, the sleeve having an internal annular recess a<1> between the weld d and the screwed joint so that the reduced portion may be severed at g and the pipes relatively rotated for repair whilst still fluid-tight, the sleeve subsequently being made good by welding. These sleeve may carry a tube b at each 'end and the pipes are welded to the coupling at e f by a butt or spigot-and-socket joint. Lead or other packing c is compressed in a groove in the sleeve by the tapered end b' of the tube b.
Patent GB-775372-A (GB)
Title: Improvements in thread-tensioning mechanism
IPC: B65H59/32
Filed: 1954-07-27
Abstract: 775,372. Thread tensioning devices. MASCHINENFABRIK SCHWEITER AKT.- GES. July 27, 1954 [Aug. 24, 1953], No. 21863/54. Class 120 (2). A thread tensioning mechanism in which co-operating tensioning members are spring urged to a position of increased tension and are moved to a position of less tension by an increase in thread tension through a movable two-arm lever having a thread-guiding eye, is characterized in that a two-arm lever having a thread-guiding eye is arranged at each of the feed and delivery sides of the mechanism, which levers operate independently against the spring, whereby the setting of the tensioning members depends on the thread tension either on the feed or delivery side, the spring being tensioned by a worm gear, a cam and a lever actuated by the cam, and an indicator being provided to indicate the spring tension on a dial. As shown a movable tensioning member 3 is swivellably mounted on a shaft 2 and co-operates with a fixed member 4 so that the thread passing through has a zig-zag path. The member 3 has a tongue 3b which rests on independent levers 10 on the ends of spindles 8 the other ends of which are formed with thread guide arms 9 so that movement of either of the arms 9 resulting from increased thread tension tends to close the tensioning members 3 and 4 together and so reduce the tensioning effect on the thread One end of a tension spring 12 is attached to the member 3 and the other end to a bolt 14 on a lever 15 pivoted at 16, this spring urging the tensioning members apart and thus acting to increase the tensioning effect. The tension of the spring 12 can be controlled through the knurled knob 25 which is attached to a shaft 24. Rotation of the shaft 24, through a worm 23 and wormwheel 19, rotates a cam 18 the periphery of which acts on a pin 17 on the lever 15 to vary the tension in the spring 12 and hence the tensioning effect on the thread passing through the members 3 and 4. An indicator 22 which moves over a dial on the casing 1 is provided to indicate the tension of the spring.
Patent GB-140970-A (GB)
Title: Improvements relating to automatic electric couplings
IPC: B61G5/10
Filed: 1919-09-05
Abstract: 140,970. Belfield, R., (Westinghouse Air Brake Co.). Sept. 5, 1919. Two-part couplings; quick-action connexion or disconnexion.-A coupling for train-line circuits between cars, of the type having a movable contact carrier adapted to be automatically projected outward to make contact with a counterpart coupler by the coming together of two cars, is arranged so that energy is stored up during the initial coupling operation, which is subsequently released to operate the contact carrier. As described, the energy is stored in a spring which is released by fluid-pressure-operated means. A rotating cover is automatically withdrawn as the couplings come together. The coupling contacts 12 are carried by an insulator 32 and are coupled in pairs in opposite sides of the centre line, being also connected to train wires which are held in a clamp 33. The insulator 32 is carried by a frame 36, rigidly connected to the clamp 33 by a bar 44. and sliding in a casing 10, which is fixed beneath the car-coupler 4. The car-coupler is of the rigidlock type haping hook projections 5, each engaging an inclined surface on a counterpart coupler, and clamped bv locking levers 6, which may be released by fluid pressure admitted to pistons 7. A link 18 is pivoted in the casing 10, and coupled to the bar 44 by a link 19 to operate the contact carrier. When the coupling parts are brought together, counterpart tappets 14 on each engage the face of the opposite coupler, and springs 16 are compressed in a box 17, abutting against one end of the lever 18; this lever is prevented from moving by an arm 21 and a stop 22, energy being thus stored for subsequent use. A pivoted cover 37 is lowered at the same time by the action of the tappet 14 through a rod 42 and an arm 43 fixed to one of the pivots of the cover, a spring 40 tending to restore the latter. When the carcoupling is engaged fluid under pressure is admitted to a pipe 29 by the automatic opening of a valve 30. This pipe is connected directly or through a manually controlled cock 31 to a piston 23, which presses the arm 21 off the stop 22, whereupon the springs 16 are free to project the contact carrier forward into engaging position. When the cars are uncoupled a spring 27 restores the parts to their original positions, a lever 26 replacing the arm 21 on the stop 22. Various forms of tripping devices may be employed for releasing the lever 18. The valve 30 may be the ordinary closing valve of the reservoir pipe line through the coupler. The cock 31 may be used to prevent the operation of the electric coupler when coupling cars, if desired.
Patent GB-1216718-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01B33/06
Filed: 1968-05-08
Abstract: 1,216,718. Mowing machine. C. VAN DER LELY N.V. 8 May, 1968 [12 May, 1967], No. 21900/68. Heading A1F. A mowing machine comprising a plurality of cutting members arranged to be rotated about corresponding vertical axes by the p.t.o shaft of a tractor is characterized in that the cutting members can be driven at different common speeds of rotation whilst retaining their previous directions, in response to a single speed of rotation of the p.t.o. shaft. The mower frame 2, 3 is adapted to be connected to the 3 point lift linkage of the tractor, the p.t.o. shaft coupling to shaft 18 that transmits drive via a pair of pinions 19, 20 to shaft 16. The drive does not extend to the gears 21, 22. Shaft 16 in turn transmits drive to the other cutting members via bevels 10, 11, 13, such that the members form a set of oppositely-rotating pairs. Their common speed of rotation may be changed by either inverting the gear set, reversing the gear set to use gears 21, 22, or by performing both operations, with the aid of a quickly releasable fastening. The frame is supported by ground wheels 74 disposed beneath the cutter support plate 79, and ground wheels 38 adjustably disposed on a support 35. Lugs 24 are provided at one end of the frame enabling a portion of the frame to pivot, about a horizontal axis in the direction of intended travel of the mower, into a transport position being determined by the abutment of the oblique faces of the frame. The drive to the cutting member of this portion is correspondingly made universal. Further pivotable portions may be added.
Patent GB-186493-A (GB)
Title: Improvements in liquid measuring and dispensing apparatus
IPC: B67D7/16
Filed: 1921-08-18
Abstract: 186,493. Hammond, F. Aug. 18, 1921. Fixed-chamber apparatus; varying quantity measured in; valve systems for.-Relates to apparatus for delivering measured quantities of liquids in which the quantity delivered is made variable by varying the height of overflow connections and consists in means for operating overflow valves bv means of a cam and also in operating means for the interconnected inlet and outlet valves of the measuring chamber. The measuring vessel 8 has a transparent window 9, inlet and outlet passages 10 and 11 governed by interconnected valves 12, 13, and a central overflow pipe 14 with branches 15 each provided with a valve 16 pressed upon its seating by a spring 30. Mounted rotatably on the pipe 14 is a gearwheel 21 meshing with a wheel 20 turned by a spindle 19; rods 18 connected to the springs 30 rest on the wheel 21 and any one rod may be raised by a cam 22, thus lifting the corresponding valve 16 off its seating, dial indicator 26 attached to the spindle 19 showing the capacity corresponding to that overflow valve. The valves 12 and 13 are operated by a lever 31 reciprocable by a spindle 23 and having slots engaging rods 12<a> and 13a and containing springs 31<a> which ensure that when one valve is open the other shall be closed. The spindles 19 and 23 are operated by a key which is inserted through a hole in a sliding cover-plate 27 so that both spindles cannot be operated simultaneously, and a spring pawl 28 may be provided to prevent backward rotation of the gear-wheel 21. The overflow openings may be adjustable as to height and the lengths of the rods 18 correspondingly adjusted.
Patent GB-587198-A (GB)
Title: Improvements in or relating to materials having a textile surface suitable for floor covering and other furnishing purposes
IPC: D06N7/00
Filed: 1944-11-08
Abstract: 587,198. Pile fabrics. BRITISH CELANESE, Ltd. Nov. 8, 1944, No. 22005. Convention date, Nov. 9, 1943. [Class 142 (iv)] Material having a textile surface and suitable for floor covering and other furnishing purposes comprises strips adhesively secured edgewise to a rigid or flexible backing, the strips being cut from a stack of fabrics containing thermoplastic material. In the example shown, disc-like sections 7 are cut from a stack of fabrics, containing yarns of cellulose acetate, which has been first rolled up and temporarily wrapped with paper to hold the discs together until they are assembled on a table 8 ; the upper surface is then sprayed with acetone and a fabric sheet 9 secured to it by heat and pressure. Alternate discs may be cut from the roll by a heated knife so that each has one face fused to keep the disc intact.