baber/WOPTO huggingface dataset:
Patent GB-1285207-A (GB)
Title: Method of making formed thermosetting polydiene articles
Inventor: LUBOWITZ HYMAN RALPH
IPC: C08L33/00
Filed: 1969-10-28
Abstract: 1285207 Moulding polydiene polyurethane articles TRW Inc 28 Oct 1969 [28 Feb 1969] 52842/69 Heading C3P A sheet is made from a mixture of the reaction product of a polyfunctional polydiene prepolymer having at least 50% of its olefinic unsaturation in the form of pendant vinyl groups on alternate carbon atoms of a backbone chain and a polyfunctional organic chain extender and a free-radical initiator, the sheet is placed in a forming die and the sheet is cured by the application of heat and pressure. The resins are further described in Specifications 1,193,301, 1,193,734, 1,194,723, 1,195,566 and 1,195,565. The initiator may be present in the initial mixture or added to the rubbery reaction product.
Patent GB-1187869-A (GB)
Title: A Method of and Apparatus for Improving Growth Conditions in Field Cultivation.
Inventor: KRUPP GERHARD
IPC: A01B29/04
Filed: 1967-11-21
Abstract: 1,187,869. Land rollers. BODENBEARBEITUNGSGERATE VEB. 21 Nov., 1967, No. 53008/67. Heading A1B. A tamping roller 21 is provided with a pulveriser cage 17 which is dragged over the ground surface 22 by the tamping roller so as to pulverise the ground whilst plates 11 of the roller compact the ground below a plane 20. Tines (23), Fig. 7 (not shown), or rotatable angular discs (24), Fig. 8 (not shown, may be mounted on longitudinal bars 16, 19 of the pulveriser cage 17.
Patent GB-1536704-A (GB)
Title: Leno device for a weaving loom
IPC: D03C7/00
Filed: 1975-12-30
Abstract: 1536704 Leno motions RUTI-TE STRAKE BV 30 Dec 1975 [17 March 1975] 53182/75 Heading D1E A leno selvedge motion comprises two half healds 15 fixed to a block 7, two half healds 16 fixed to a block 6, the blocks 6 and 7 being joined by a leaf spring 11 and the block 6 being tilted in one direction by a lever 18 so that the spring 11 tilts the block 7 in the other direction, and vice versa, causing the healds 15, 16 to cross each other and to cross standard warp threads running in wire guides 23, 24, 25.
Patent GB-1092959-A (GB)
Title: Apparatus for packaging
IPC: B65B31/02
Filed: 1965-12-20
Abstract: 1,092,959. Packaging; labelling. SCIENTIFIC-ATLANTA, Inc. Dec. 20, 1965 [Oct. 21, 1965], No. 53796/65. Heading B8C and B8F. Apparatus, for replacing air with another gas in a package comprising a cup and lid, comprises a conveyer, shown as a rotatable table 1, having cup-receiving openings in its upper surface, the lids being bowed outwardly to define a funnel for the inflow of the other gas to the package when the package is received in a flashing chamber 2. The package is then passed to a sealing chamber 4 via a chamber 4<SP>1</SP> which prevents escape of the other gas. The sealed packages are swept from the table by an arm 35 on to a conveyer 36. Initially the packages are placed, with their lids bowed, in the openings (7), Fig. 3, (not shown), in the rotatable table 1, which table is driven via a Geneva drive mechanism, and delivers the packages to a label applicator 3. The applicator consists of an open-based hopper 22 and a reciprocable arm 23 carrying suction cups 24, 24<SP>1</SP> connected to a vacuum supply. The suction cups are raised into contact with the bottom label in the hopper. The arm is then lowered and turned through 180 degrees to invert the label and place it on a package, at which point the vacuum is removed and air under pressure connected to the suction cups. The package is then indexed to the flushing chamber 2. Flushing chamber 2.-Fig. 2 (not shown). The chamber comprises an air outlet (19) and a hose (21) and a gas inlet (18) connected to gas under pressure via a hose (20). The gas flows through the tunnel defined by the bowed lid and the cup, and air is simultaneously withdrawn. The flow is facilitated by extensions in a ledge (15) under the openings in the top of chamber (2). The package is then indexed to the sealing chamber 4 via the chamber 4<SP>1</SP>. Sealing chamber 4.-Fig. 3 (not shown). The package is sealed by a heat sealing press (5) which comprises an electrical heater (29) and a heating platen (30), which applies heat and pressure to the edges only of the package. The heater (29) is mounted on a reciprocating plunger (31). The sealed package is then indexed to the ejection station. In the base of each opening (7) in the table 1 is mounted a piston (10) carrying a plattern (11), which on reaching the ejection station lifts the package from the opening to allow the arm 35 to sweep it on to the conveyer 36. The rotatable table 1 may be replaced by a conveyer carrying the packages in a straight line. The packages may be made from plastics material or metal foil, for example, and other than heat sealing means provided. Automatic package inseating equipment may be used. The lid may be an aluminium laminate or of cardboard.
Patent GB-1501372-A (GB)
Title: Identifying location of vehicles
IPC: B61L3/00
Filed: 1973-11-27
Abstract: 1501372 Train control system HAWKER SIDDELEY DYNAMICS Ltd 25 Feb 1975 [27 Nov 1973] 54873/73 Heading B7N In a location identifying system for rail vehicles, fixed transponders or markers 14 are provided adjacent the track 11 and their presence or identity is sensed in passing by an interrogator or receiver R on vehicle 12 and this information, plus information from speed measuring device S, distance measuring odometer O and store M, which stores the distance reading at transponder or marker passage, is transmitted by transmitter T to remote control office 13. The coded identity of the transponder or marker and/or their spacing is arranged in a pseudo-random sequence i.e. a sequence which is irregular but which is known to the remote office so that a transponder or marker response is unlikely to be mistaken for another. The control office checks the vehicle information and issues control instructions.
Patent GB-1163620-A (GB)
Title: Non-crystallisable Copolycarbonate-Urethane Resins
IPC: C08L75/00
Filed: 1966-12-09
Abstract: 1,163,620. Copolycarbonate1,163,620, Copolycarbonate/urethane resins. UNION CARBIDE CORP. 9 Dec., 1966 [10 Dec., 1965], No. 55288/66. Heading C3R. Linear copolycarbonate/urethane resins having recurring units of the formula wherein R 1 , R 2 , R 3  and R 4  are independently alkyl radicals containing 1 to 4 carbon atoms, Y, R 5 , R 6 , R 7  and R 8  are independently hydrogen or alkyl radicals containing 1 to 4 carbon atoms, a is 0 or 1, m is an integer such that the reduced viscosity of the polymer (CHCl 3 , 25‹ C.) is at least 0.4 and n is an integer of 2 to 20 are prepared by reacting a diphenyl carbonate of the formula with a piperazine of the formula and optionally a tetraalkylcyclobutane diol, optionally in the presence of an inert solvent, such that X has a value no greater than n of the above general formula. When X=n, the tetraalkylcyclobutane diol is omitted from the reaction mixture. Suitable piperazines are .2 - methyl-; 2,5-dimethyl-; 2,6-dimethyl-; 2,3,5,6 - tetramethyl-; 2,5 - dibutyl-; and 2,5- dimethyl - 3 - ethyl - piperazine and homopiperazine. The preferred cyclobutane diol is 2,2,4,4 - tetramethyl - 1,3 - cyclobutane diol. Inert solvents such as phenol, diethylene glycol dimethyl ether, o-dichlorobenzene, 1,2,4-trichlorobenzene and biphenyl may be used to dissolve the reactants and catalysts such as alkali and alkaline earth metals, oxides and hydroxides and especially lithium acetate dihydrate may be added to the reaction mixture.
Patent GB-1420350-A (GB)
Title: Bistable crosspoint matrix
IPC: H01H67/30
Filed: 1973-11-29
Abstract: 1420350 Electric selector, polarized crosspoint switches INTERNATIONAL STANDARD ELECTRIC CORP 29 Nov 1973 [7 Dec 1972] 55319/73 Headings H1L and H1N A co-ordinate switching matrix with bi-stable crosspoint devices in rows and columns each with a coil and permanent magnet has a common sheet 4 of magnetic material being directly over the permanent magnets parallel to the magnetization axes of the permanent magnate and covering the magnets of the crosspoints 1 within the matrix, partly covering the crosspoints 2 at the edges thereof and not covering those 3 at the corners of the matrix. The row magnets may be poled in the same sense and the column magnets alternately poled as shown by the arrows on the drawing. This arrangement provides closer relative pick-up and release characteristics for the relays (Figs. 2 to 5, not shown).
Patent GB-1369029-A (GB)
Title: Method of and apparatus for the removal of film layers from a  surface
IPC: H05K3/28
Filed: 1972-11-28
Abstract: 1369029 Punching apparatus INTERNATIONAL COMPUTERS Ltd 28 Nov 1972 [1 Dec 1971] 55736/71 Heading B4B [Also in Division H1] A method of removing a portion of a layer of material 4 from a planar structure 1, the portion extending over an aperture 6 in the structure comprises positioning an annular cutter 7 above the aperture, aligning a support (or a second cutter 10) below the aperture on the other side of the structure, ensuring accurate location of the cutter(s) using a location member 13 extending at least partly into the aperture, bringing the cutter 7 down on to the layer 4 to cut same, and removing the severed portion through the aperture using a punch 16. The method may be used to remove a photoresist layer 4 and its protective layer 5 from a printed circuit board supporting a copper layer 3, the aperture being used later accurately to align the pattern mask. As shown two cutters 7, 10 may be used to sever layers 4 on both sides of the structure 1.
Patent GB-1201328-A (GB)
Title: Electronic counting circuit arrangement
IPC: H03K23/00
Filed: 1967-12-07
Abstract: 1,201,328. Electronic counters. AMERICAN OPTICAL CORP. 7 Dec., 1967 [29 Dec., 1966], No. 55804/67. Heading G4A. A quinary counter is arranged so as to have three stages non-conducting and two conducting, each input electrode being controlled by the output electrodes of one adjacent and two non- adjacent stages and through a capacitor and diode from a common input signal bus. Each of the stages A-E comprises a transistor 16 the base of which is fed through resistors 42, 44 from two out of five buses 40A-40E fed by the outputs of the several stages. Each base is supplied through diode 28 and capacitor 30 by forward-driving pulses from 29 or through 32, 34 by reverse pulses from 31. The diodecapacitor junction is connected by resistor 36 or 38, respectively, to the preceding or following bus 40, as the case may be. The potentials are such that in a state of rest two adjacent stages in the ring are on, e.g. C, D. The related buses are therefore at ground and the others at + 10V. The bases of A-E are then at -6À6, 0, +0À7, +0À7, 0. A negative-going pulse on forward line 29 drops the potential on capacitor 30C sharply from + 10V to ground so that 16C cuts off and collector bus 40C rises to +10V, so that 16E conducts. Read-out.-The buses 40 are connected in pairs arranged as OR gates to transistors 50A- 50E, only one of which is therefore non-conducting to indicate on its output terminal T, 1-4. Transistors 50A and 50E combine with forward or reverse counting diode 72 or 78 to carry to bi-stable 14 with output at 102-1 or 102-2 of 5 or 5. Forward or reverse decimal carry is effected at 104-1 or 104-2.
Patent GB-1283128-A (GB)
Title: Setting accelerators for cements, mortars and concretes
IPC: C04B24/06
Filed: 1970-11-24
Abstract: 1283128 Quick setting cement and concrete PROGIL 24 Nov 1970 [2 Dec 1969] 55903/70 Heading C1H The setting time of tricalcium silicate e.g. Portland cement, mortar or concrete is reduced by adding 0À5-5% alkali metal aluminate and 0À05 to 2% organic hydroxylic acid or salt or compounds in which the acid or alcohol group is partly or wholly esterified. Preferably the alkali metal aluminate has a MeO 2 /Al 2 O 3  molar ratio of between 1 : 1 and 4 : 1, where Me= alkali metal, and the organic constituent is tartaric, citric, gluconic, malic, lactic or salicylic acid or alkali- or alkaline earth-metal salt thereof. The aluminate and organic constituent can be mixed with precipitated silica and dispersed in the water used to make up the cement, or incorporated in the cement during production.
Patent GB-559050-A (GB)
Abstract: 559,050. Hydrazides of dihydro -lysergic acid and dihydro-isolysergic acid. SANDOZ, Ltd. May 7, 1942, No. 6155. Convention date, May 13, 1941. [Class 2 (iii)] Hydrazides of dihydro-lysergic acid and dihydro-isolysergic acid are prepared by treating dihydro-ergot alkaloids or their degradation products such as esters of dihydro-lysergic acid or dihydro-isolysergic acid with hydrazine or hydrazine hydrate at temperatures from 50‹ to 150‹C. It is stated that the use of the dihydro ergot alkaloids has the advantage that neither racemisation nor isomerisation takes place, and also there is an increased yield of hydrazide. In examples (1) Dihydro-ergotamine is heated to boiling under reflux in anhydrous hydrazine ; after one hour, water is added and the dihydrolysergic acid hydrazide crystallizes from the hydrazine hydrate. (2) Dihydro-ergosine is refluxed with hydrazine hydrate to form dihydro-lysergic acid hydrazide. (3) Dihydrolysergic acid methyl ester is heated to 50‹C. In anhydrous hydrazine. On diluting with water dihydro-lysergic acid hydrazide crystallizes. (4) Dihydro-ergotaminine is refluxed in anhydrous hydrazine and the product diluted with water to form dihydro-isolysergic acid hydrazide. (5) Dihydro-ergotinine is heated with hydrazine hydrate in a sealed tube to 150‹C. to form dihydro-isolysergic acid hydrazide. (6) Dihydro-isolysergic acid methyl ester is heated with hydrazine hydrate in butyl alcohol solution in an atmosphere of nitrogen to form dihydroisolysergic acid hydrazide. Specifications 463,936, 480,822 and 546,331 are referred to.
Patent GB-565424-A (GB)
Abstract: 565,424. Lathes. BAIGENT, G. M. June 9, 1943, No. 9296. [Class 83 (iii)] In a lathe or like automatic machine for performing an end working operation on bar stock and also a forming or cutting-off operation, an end working tool, such as a drill 25, is secured in a holder 22 axially adjustable in a hollow slide 14 by means of a screw-thread 26 and an adjustable locating collar 28. The slide is fed towards the work by a face cam 20 and follower 19 and is returned by a spring 18, the end of the drill being supported by a bush 29 in a conical holder 13 attached to the machine frame 10. A facing tool 32 and cutting-off tool 33 are carried by a lever 35 pivoted on a bar 351 between bearings 44, 45 and operated by a cam 43 and tappet 41 engaging the lower projecting end of an adjustable screw 39 on the lever. An end stop 38 for the stock which is fed through the collet 12 is also provided on the lever 35 and a bush 31 carried by a member 30 on the headstock supports the work opposite the tools, and is cut away if necessary to clear the tools. The tools 32, 33 are mounted on the lever 35 by means of a bolt 36 and are spaced by a washer 34 so that the distance between the cutting-off and facing tools will determine the length of work produced irrespective of any inaccuracies in the end stop 38. Several levers 35 may be provided so that'tools may be set-up therein and readily interchanged on removal of the bar 35<1>. Specification 550,867 is referred to.
Patent GB-1133891-A (GB)
Title: Wheel spacing means
IPC: B62D49/06
Filed: 1966-12-19
Abstract: 1,133,891. Variable track wheels. MASSEYFERGUSON Inc. 19 Dec., 1966 [23 Dec., 1965], No. 56705/66. Heading B7C. A variable track wheel has two sets of circumferentially arranged mounting pads (22), (24) axially spaced on the inboard and outboard periphery of an inner wheel portion 18, each pad having inclined shoulders 23, 27 for engagement with complementary inclined surfaces on shoes (20) attached thereto by nut and bolts 21, 19 and having a radially outwardly disposed groove 28 which clamps on one of like number of corresponding helical track rails 30 riveted or welded to the radially inner periphery of a rim 32 or mounted on an outer wheel portion 14. The matching surfaces of the pads and shoes permit sliding engagement between the grooves and rails for changing the wheel spacing through a first range of movement when the pads (22) are utilized and a second and overlapping range when the pads 24 are used, or alternatively the matching surfaces provide firm frictional engagement therebetween for transmitting driving torque at a chosen wheel spacing. The inboard and outboard sets of pads are staggered circumferentially and axially relative to each other so as to be similarly placed with reference to the helix of a rail and a movable stop can be secured on one rail to limit the distance of travel of the shoes along the rails.
Patent GB-1154955-A (GB)
Title: Improvements in or relating to Curtains
Inventor: CLELAND ALEXANDER MCGREGOR
IPC: E06B9/262
Filed: 1966-12-20
Abstract: 1,154,955. Curtains. CLELAND BROS. & CO. Ltd. 4 Oct., 1967 [20 Dec., 1966], No. 57077/66. Heading A4S. [Also in Division D1] A curtain, formed of a material including synthetic thermoplastics fibres, has parallel spaced permanent creases 2 and spaced hole 3 for passage of a suspensory rod or wire 5. The holes are formed during knitting or weaving or the pleating mechanism may include a punching or burning device by which the holes are formed before or after pleating. In modifications holes are provided at opposite edges of the curtain or the curtain, as packaged for sale, has a tape threaded through the holes for attachment to the rod or wire for transfer of the curtain thereto.
Patent GB-1223998-A (GB)
Title: Gas turbine engine
Inventor: HAYWARD ANTHONY PHILIP ST JOHN
IPC: F02C9/16
Filed: 1967-12-18
Abstract: 1,223,998. 998. Gas turbine plant; combustion chambers; turbines; centrifugal and centripetal compressors. ROLLS-ROYCE Ltd. Dec.12, 1968 [Dec.18, 1967], No.57396/67. Headings F1C, F1G, F1L, and F1T. In a gas turbine engine the flow area of at least one portion of the main flow duct therethrough can be varied. In the gas turbine engine shown in Fig. 3, comprising a compressor 34, an annular combustion chamber 35 and a turbine 36 which drives the compressor through a rotatable shaft 40, the walls 56, 60, 62, 63 and 64 are all adjustable axially of the shaft to vary the flow areas through duct portions 31, 32 and 33, the walls 60, 62 and 64 being splined to the housing 45 and the walls 56 and 63 being splined on to the shaft. The walls 56, 62 and 63 are adjustable by a number of rams 49, 58 which may be controlled in accordance with the ratio of compressor inlet and outlet pressures and with the rotary speed of the engine by a control device (66), Fig. 4 (not shown), to provide a constant compression ratio for any given rotary speed. The device is also arranged to prevent the compressor outlet pressure from exceeding an upper limit. In an alternative embodiment, Figs. 1 and 2 (not shown), e.g. for a helicopter rotor, the engine comprises a centripetal compressor (14) having relatively adjustable side and blade-carrying walls, and the compressor is driven by a turbine rotor (15) containing one or more radially-extending angularly-spaced combustion chambers (16) which receive the compressed air at their radially inner ends and discharge combustion gases through nozzles (17) at their radially outer ends, the nozzles being so arranged at the periphery of the rotor that the discharging gases drive the rotor. The turbine rotor may have an adjustable side wall to vary the volume of the combustion chambers.
Patent GB-1417974-A (GB)
Title: Adhesive tape assembly and a method of use thereof
IPC: C09J7/29
Filed: 1971-12-10
Abstract: 1417974 Laminates H G LEMOINE 8 Dec 1972 [10 Dec 1971] 57471/71 Heading B5N An adhesive tape assembly comprises a first strip 3 of an electrically conductive foil, e.g. of copper or aluminium of thickness 0À008-0À018 mm., at least one second strip 2, 2a of a material, e.g. paper or plastics material of thickness 0À1-0À5 mm., extending along and adherent to each longitudinal margin of one face of the first strip leaving exposed a longitudinal portion of the first strip between the second strips, the material having a tear strength greater than that of the foil, a layer of pressure-sensitive adhesive 4 carried by each of the second strips on the surfaces thereof remote from the first strip and by the longitudinal portion of the first strip on the surface thereof between the second strips, and a backing tape 1, e.g. of siliconecoated paper or plastics material, releasably adherent to at least the adhesive surfaces of the second strips. The backing tape preferably extends laterally beyond both longitudinal edges of the first strip. An adhesive strip of electrically conductive foil may be applied to a surface, e.g. a wall or glass window pane, by applying firmly to the surface the adhesive tape assembly after removal of the backing tape, with its adhesive surface in contact therewith and stripping at least two of the second strips together with the overlying portions of the first strip from the surface to leave a strip of electrically conductive foil attached thereto. The strip may be of a width, e.g. # inch, such that when the surface is cracked or broken the strip is also broken and may be used in the circuit of a burglar alarm. In a modification of the tape assembly a strip of resilient material, e.g. foamed plastics material, is interposed between the longitudinal portion of the first strip and the layer of adhesive thereon, the strip of resilient material preferably being of approximately the same thickness as the second strips and of the same material.
Patent GB-1149780-A (GB)
Title: Improvements in or relating to extrusion apparatus
IPC: B29C48/38
Filed: 1966-12-28
Abstract: 1,149,780. Multi-screw extruders. SUMITOMO ELECTRIC INDUSTRIES Ltd. 28 Dec., 1966 [11 Jan., 1966], No. 57914/66. Heading B5A. [Also in Division B1] In a screw extruder, a first screw 1 fed with plastics material from a hopper 3 delivers plasticized material to a second screw 2 which has a smaller diameter, but higher speed of rotation than the first. Screws 1, 2 are driven by motors 6, 7 respectively, which motors may be controlled for speed of rotation from a common unit 8. The drive for both screws may derive from a single motor. Material entering zone 11 is de-aerated by vacuum means connected to outlet 5. The barrel of screw 1 may be heated, as also may that of screw 2 initially, although owing to the relatively high rotational speed of screw 2 cooling means are also provided to prevent heat degradation. The screw housings may be thermally insulated from one another. A specific plastics material mentioned is polyvinyl chloride.
Patent GB-1358106-A (GB)
Title: Marine vessels
IPC: B63B25/00
Filed: 1971-12-14
Abstract: 1358106 Vessels transporting cargo containers A M B BELL 13 Dec 1972 [14 Dec 1971] 57933/71 Addition to 1186886 Headings B7A and B7S The ship of the parent Specification is modified by the provision of transverse bulkheads 34 which divide the hold into cells each capable of housing two containers 12. Portcullis doors 34A are provided in the bulkheads so that containers can be floated into the cells. After the first container has been floated into a cell, the cell doors are closed and water is pumped in to raise the container to a position in which it can be retained by hydraulic knees 35. Thereafter, the water level is lowered so that the second container can be admitted.