baber/WOPTO huggingface dataset:
Patent GB-1432851-A (GB)
Title: Gas producer
IPC: B60R21/26
Filed: 1973-09-21
Abstract: 1432851 Gas-generating charges NISSAN MOTOR CO Ltd 21 Sept 1973 [28 Sept 1972] 44473/73 Heading F3A A charge for supplying pressurized gas to an inflatable bag safety system in a vehicle, comprises a layer 14 of combustible, gasproducing material supported on a solid or hollow core 12. The core may be made of thermoplastic resin, ceramics, potassium perchlorate or ebonite and should be strong enough to resist fracture if exposed to vibrations, a collision of the vehicle, or combustion of the layer 14. Alternatively the core may be made of thermoplastics material which shatters in response to combustion of the layer 14. The core may otherwise melt upon combustion of the layer 14 to produce an alkali gas which neutralizes any acidic gas produced by combustion of the layer 14.
Patent GB-1160607-A (GB)
Title: Expansion Engine for Cryogenic Refrigerators & Liquefiers & Apparatus Embodying the same
IPC: F25J1/00
Filed: 1967-09-29
Abstract: 1,160,607. Valves. 500 INC. 29 Sept., 1967 [14 Nov., 1966], No. 44531/67. Heading F2V. Refrigeration or gas liquefaction apparatus comprises a hermetically sealed evacuated housing having a top wall 22 and a fluid expansion engine which consists of a cylinder 37 which extends to the exterior of the housing through wall 22, a piston 38 vertically movable within the cylinder to define an expansion chamber 43 of variable volume, and inlet and outlet valve assemblies 44, 45 for controlling the admission of fluid to, and the exhaust of fluid from, space 43. Each valve assembly comprises a cylinder 47 which extends to the exterior of the housing through wall 22, a valve rod 48 carrying at its lower end a closure member 79 made of leather or plastics, and a valve seat 67. Valve guides, spacers and springs encompass the rod 48 and the upper end of cylinder 47 is connected to wall 22 via a bellows seal 102 to allow for thermal expansion. The lower ends of cylinders 37 terminate in a valve plate 65 leaving appropriate passages 51, 59, and fluid from the high pressure side of an indirect contact heat exchanger (Fig. 1, not shown) within the enclosure is supplied to valve assembly 44 through conduit 32 while expanded fluid is supplied from valve assembly 45 to the low-pressure side of the heat exchanger through conduit 33. A seal in the form of a plurality of leather or plastics washers 117 with an inter-posed sealing ring 18 formed of an inner 0-ring, a metal ring and an outer 0-ring is provided at the upper end of each valve cylinder, a similar arrangement 131, 132 is used for the piston. A drive mechanism (Fig. 9, not shown) comprising a single crank-shaft is provided on wall 22 for reciprocating the piston and valve rods in predetermined sequence. The piston and valves may be withdrawn from their respective cylinders without breaking the vacuum in the housing.
Patent GB-1394466-A (GB)
Title: Storage unit
Inventor: WEIDANZ H
IPC: G11B15/68
Filed: 1972-09-27
Abstract: 1394466 Recording and playback; selecting sheet record carriers DATAGRAPH AG 27 Sept 1972 [18 Oct 1971] 44699/72 Headings G4M and G5R A data storage unit includes a magazine 24 holding a plurality of sheet records 26, a selected one of which may be extracted and transported to a transducer 128 which may be positioned to scan a selected record track as the record is returned to the rear of the magazine 24. The sheet transport is carried on a frame 23 which swivels about a vertical axis 61 to traverse an open side of the magazine 24. Record sheets, Fig. 4.-Each rectangular sheet 26 is preferably of magnetic foil, thickness 0À15 mm., but could alternatively support microfilms or other machine-readable records. Each sheet 26 is mounted on an upper and a lower rider 33, 34 of spring steel, the lower rider 34 having teeth 47 which may be removed at certain positions to distinguish the sheets. The sheets are held vertical and planar in the magazine by angle section strips (54), Fig. 5 (not shown), which engage notches at one end of the riders 33, 34. At the other end of the riders 33, 34 are recesses 39 which may be engaged for extracting a sheet 26 in direction A. Record selection and transport.-Certain of slides 28 are raised to interengage the teeth 47 and select a sheet 26. Pull-rods 81 are then inserted in the recesses 39 and are of a diameter to cause expansion of the recesses and frictional engagement therewith. The rods 81 are then retracted and the selected sheet is thereby partially extracted, being halted by a stop 121. The swivel frame 23 is then pivoted forwardly until hooks 74 therein engage the recesses 39, and a plate (119), Fig. 10 (not shown), on the swivel frame engages the projecting upper rider 33 causing a latch (96) to engage a ratchet (86) on the unit frame 22, halting the pivotal motion. The stop 121 and the slides 28 are then disengaged and the hooks 74 are moved along guide rods 73 by a pin 67 on an endless belt 66 to extract the sheet 26 fully. The riders 33, 34 are guided on upper and lower rails (78), Fig. 11 (not shown). The swivel frame 23 is then pivoted rearwardly to its initial position. The heads 128 are moved vertically to a selected track and the hooks 74 then return the sheet 26 to the rear of the magazine, moving the sheet past the heads 128. Webs 129, Fig. 1, are provided on the swivel frame 23 adjacent the heads 128 to support the sheet 26. Pressure straps 131, Fig. 7, are provided in the magazine 24 to push the returned sheet 26 forwardly off the hook 74. The track selection and head moving arrangements disclosed form the subject of Specification 1,394,465.
Patent GB-1360264-A (GB)
Title: Polyglycidyl compounds process for their manufacture and use
IPC: C07D303/36
Filed: 1971-09-27
Abstract: 1360264 Polyglycidyl compounds CIBA-GEIGY AG 27 Sept 1971 [29 Sept 1970] 44959/71 Heading C2C [Also in Division C3] Novel compounds of Formula I wherein R denotes a monovalent unsubstituted or substituted aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclio radical, A represents a n-valent unsubstituted or substituted aromatic radical which is either mononuclear or polynuclear in which two or more nuclei are fused or are linked to one another by single valencies either directly or via divalent functional groups or non-aromatic radicals, X denotes a hydrogen atom or the methyl group and n is an integer greater than 1, are prepared by reacting a polyamide of Formula II in a single stage or in several stages, with an epihalogenohydrin or # - methylepihalogenohydrin with the elimination of hydrogen halide. The reaction is preferably carried out in suspension in excess of the epihalogenohydrin or #-methylepihalogenohydrin using, as catalyst, a tertiary amine, quaternary ammonium base or quaternary ammonium salt. In a preferred case n is 2 and A is a phenylene radical optionally substituted by halogen, alkyl, alkoxy, CF 3  or NO 2  groups. Further preferred cases are represented by the Formulae VI and VII  wherein X<SP>1</SP> 1  to X<SP>1</SP> 3  and X<SP>11</SP> 1  to X<SP>11</SP> 3  represent hydrogen, halogen, alkyl, alkoxy, CF 3  or NO 2 ; p is 1 or 2; Y represents -O-, -S-, -SO 2 -, -CO-, or a, b, c and d represent hydrogen or C 1 -C 4  alkyl or a and b together denote the tetramethylene or pentamethylene radical and q is an integer of at least 1. Compounds of Formula I, the preparation of which is exemplified, are:- 1. N,N<SP>1</SP> - diglycidyl - N,N<SP>1</SP> - diacetyl - bis- (4-aminophenyl)methane. 2. N,N<SP>1</SP> - diglycidyl - N,N<SP>1</SP> - diacetyl - bis- (4-aminophenyl)sulphone. 3. N,N<SP>1</SP> - diglycidyl - N,N<SP>1</SP> - diacetyl - pphenylenediamine. 4. N,N<SP>1</SP> - diglycidyl - N,N<SP>1</SP> - diacetyl - mphenylenediamine. 5. N,N<SP>1</SP>,N<SP>11</SP> - triglycidyl - [3,3<SP>1 </SP>- di - (acetylamino)-benzanilide]. 6. N,N<SP>1</SP> - diglycidyl - N,N<SP>1</SP> - dipropionyl - 2- chloro-5-methyl-p-phenylenediamine. 7. N,N<SP>1</SP> - diglycidyl - N,N<SP>1</SP> - diacetyl - 2,4- diaminotoluene. 8. N,N<SP>1</SP> - digylcidyl - N,N<SP>1</SP> - diacetyl - benzidine. 9. N,N<SP>1</SP> - diglycidyl - N,N<SP>1</SP> - diacetyl - 3,3<SP>1</SP>- diamino-diphenylmethane. The compounds of Formula I are cured to form epoxy resins.
Patent GB-1408918-A (GB)
Title: Taco cooking apparatus
IPC: A47J37/12
Filed: 1972-10-02
Abstract: 1408918 Bakery apparatus F R SCHY 2 Oct 1972 [17 Nov 1971] 45317/72 Heading A2A [Also in Division B8] Apparatus for cooking and forming comestible sheet material, e.g. for cooking and folding pieces of tortilla dough, comprises means for conveying the material along a path which includes heating means and forming means of which the configuration varies along the path. As shown, tortilla dough is rolled and cut into rounds 12 at 10 and fed by a conveyor 21 beneath a pre-heater 16 to a conveyor 25 which deposits each round on to an articulated plate 38 carried by an endless conveyor belt or chain 32 passing over sprockets 34, 36. Each plate 38 comprises a centre portion 40 flanked by flaps 42 pivoted thereto by hinges 44, and the flaps are supported in a horizontal position by fixed guides 52, as shown in Fig 2, at the point where the round 12 is deposited thereon. As each plate 38 moves away from the guides 52 into a heated bath 23 of cooking oil the flaps 42 are allowed to fall to the positions shown in Fig 3 so that the round 12, assisted by flaps 80 hinged to a member 78 carried by an endless conveyor belt or chain 74 running over sprockets 73, 75, is folded downwardly. The upper flaps 80 are subsequently raised by fixed guides 88 and an upwardly extending portion of the conveyor 74, and the folded and cooked product 20 is conveyed upwardly away from the flaps 42 by an endless belt or cable 24 which circulates on pulleys 56, 57, 58, 60, 62 and is accommodated, where its run coincides with that of the conveyor 32, in recesses 54 in the centre portions 40 of the plates 38. The flaps 42 are returned to the horizontal position by fixed guides 53. A microwave oven may be used instead of the cooking bath. A number of, e.g. four, conveyor systems may be arranged in parallel in a single cooking bath. Modifications are described in which either the articulated plates 38, or both those plates and the articulated plates of the upper conveyor 74, are replaced by fixed surfaces shaped to fold the rounds as they are conveyed through the bath. In another modificaton the upper conveyor 74 and the cooking bath are dispensed with, the rounds being foded by gravity as the flaps 42 are lowered, and cooking being effected by hot oil sprays. Another embodiment forms the comestible sheet material into corrugated instead of U-shaped form, and its is stated that continuous strip material may be dealt with.
Patent GB-1325074-A (GB)
Title: Combine harvester
IPC: A01F7/06
Filed: 1970-09-24
Abstract: 1325074 Axial flow combine harvester INTERNATIONAL HARVESTER CO 24 Sept 1970 [8 Oct 1969] 45534/70 Heading A1F An axial flow combine harvester as described in Specification 1193697 has detachable wear plates 40 on the scoop portions 39 of each of impeller blades 33. In Figs. 1, 2 is shown a wear member 40 with a leading edge 43 normal to the axis X-X. Fig. 4 shows a swept-back wear member 40. The former type is useful when harvesting low volume crops and in rice and grass while the latter is useful in high volume crops and in windrowed grains. The detachable plates allow renewal of the leading edges of the impeller without renewal of the whole impeller.
Patent GB-1197530-A (GB)
Title: Improvements relating to Electronic Flash Control Circuits
IPC: H05B41/32
Filed: 1968-09-26
Abstract: 1,197,530. Charging and discharging capacitors. INTERNATIONAL POLAROID CORP. 26 Sept., 1968 [28 Sept., 1967], No. 45729/68. Heading H2H. [Also in Divisions G2 and H3] An electronic flash circuit wherein stored electric energy is discharged to produce a flash of light is provided with means to limit the flash intensity by dissipating a portion of the energy and control means disables the dissipating means after a time delay interval following the start of the flash whereupon the intensity of the subsequent portion of the flash is increased. The embodiment described applies the invention to the automatic variation of flash intensity with the focus setting of a camera. A 500 volt supply (not shown) is fed to terminals 10 and 12 and charges the main storage capacitor 24 to full voltage, a 0À22 ÁF. trigger capacitor 56 to 250 volts, and a 100 ÁF. capacitor 66 to 20 volts only, due to a 1 Megohm resistor 28 and Zener diode 64. When shutter contacts 40 are closed SCR 26 is gated by a pulse via capacitor 40 and the 20 volt supply from capacitor 66 provides a pulse via capacitor 46 to gate SCR 44. This discharges capacitor 56 via the primary 52 of a triggering transformer 54, the secondary 58 of which is connected to the trigger electrode 22 of the flash tube 20 which is thus fired in the conventional manner except for a series 15 ohm resistor 86 which considerably restricts the flash intensity. The 20 volt supply from capacitor 66 also commences charging a 40 ÁF. capacitor 70 via a potential divider comprising a fixed resistor 72 and variable resistor 68 mechanically coupled to the camera focus control. When the potential on capacitor 70 becomes sufficient to render unijunction transistor 76 conductive an SCR 84 is gated to short-circuit the resistor 86 and the intensity of flash tube 20 is then unrestricted. Graphs of flash intensity versus time are given for relatively short delay intervals (Figs. 2 to 4, not shown) and for relatively long delays (Figs. 5 to 7, not shown).
Patent GB-1093043-A (GB)
Title: Reciprocating piston type liquid pumps
Inventor: FREEMAN FRANK GEORGE
IPC: F04B49/16
Filed: 1964-11-11
Abstract: 1,093,043. Reciprocating pump. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan.19, 1966 [Nov. 11, 1964], No.45895/64. Heading F1A. The output pressure of a reciprocating pump having pistons 15 and 16 is limited to a predetermined value by means of accumulator pistons 25 and 26 having non-return valves 29 through which liquid, e.g. fuel, is supplied to the pumping chambers. The pistons 15 are actuated by an eccentric 14.
Patent GB-992711-A (GB)
Title: Hydraulic regulating system
IPC: F15B21/044
Filed: 1961-12-21
Abstract: 992,711. Hydraulic apparatus. SULZER FRERES S.A. Dec. 2l 1961 [Dec. 28, 1960], No. 45911/61. Heading F1P [Also in Division B1] The invention comprises a steam generator provided with a hydraulic regulating system wherein inclined return lines for hydraulic fluid lead into a vertical return pipe, the vertical return pipe containing a device which serves to retard vertically flowing return fluid and convert it into a more slowly flowing layer from which air or other gas entrained in the fluid can more easily escape. As described the device is in the form of a helix which at least substantially fills the cross section of the vertical return pipe and extends from above the point where the highest return line leads into the return pipe to the bottom of the return pipe. As shown in Fig. 1, motors 14 and 16, indirectly controlling via pilot valves 26 and 28 a steam generator (not shown) via linkage 42 and valve 43, are supplied via line 38 with oil from sump 12. Upon sudden changes in operating conditions, oil, containing entrained air is discharged from the motors into inclined return lines 44 and 48 leading to vertical return pipe 10 in which the oil flows down the helix thus allowing the entrained air to escape. The oil flows into sump 12 which is vented at 68.
Patent GB-1075079-A (GB)
Title: Process for the preparation of optically active lysine
IPC: A23K1/16
Filed: 1964-11-11
Abstract: A mixture of D(-)- and L(+)-lysine is treated with one of the optical antipodes of a -phenoxypropionic acid to form salts of the lysine optical antipodes, which may be separated by utilizing differences of solubility in a solvent, e.g. methanol at 35 DEG  C. Thus the salt of L(+)-lysine with D(+)-a -phenoxypropionic acid is less soluble than the salt of D(-)-lysine, and the salt of D(-)-lysine with L(-)-a -phenoxypropionic acid is less soluble than the salt of L(+)-lysine. The separated salts may be treated to obtain the optically active lysine, e.g. by passing an aqueous solution through an ion exchanger; or to obtain a lysine compound, e.g. L(+)-lysine monohydrochloride by treatment with aqueous HCl. The salts may also be separated by selective precipitation, e.g. by treating a non-aqueous, e.g. methanolic, solution of lysine with the optically active a -phenoxypropionic acid.
Patent GB-1085296-A (GB)
Title: Stepless or infinitely variable change speed gear
IPC: F16H55/56
Filed: 1964-11-12
Abstract: 1,085,296. Expanding-wheel gear; securing together rotary parts. NIHON SPINDLE SEIZO KABUSHIKI KAISHA. Nov. 12, 1964 [Nov. 14, 1963], No. 46128/64. Headings F2D and F2U. In an expanding pulley V-belt drive, wherein the means coupling oppositely facing discs 1, 2 together whilst permitting relative axial movement therebetween comprises rectilinear sets of rollers 9 interposed between and contacting circumferential abutments 3, 4 respectively keyed to the discs 1, 2, each set of rollers is revolubly supported on a holder M of synthetic resin, polyacetal or nylon. Either the rollers or the abutment members have contact surfaces of an elastic shock-absorbing and wear-resistant material. As shown, the discs 1, 2 are respectively fixed together by tie rods 5, 5<SP>1</SP> passing through intercalated quadrant disc extensions 11, 2<SP>1</SP> respectively keyed to the members 3, 4. The discs 1 are axially fixed, the member 3 being keyed to a shaft S, and the discs 2 are axially movable by a screw actuated from a sprocket 30. Each roller 9 comprises an iron core and an outer coating of wear-resistant elastic material such as polyurethane. The rollers may be loosely revolubly supported in recesses in the holders M (Fig. 5, not shown) or, as shown, on pegs radially inwardly projecting from the holders. In Figs. 6-11 (not shown), in order that the holders M may be positively axially moved in a definite relationship with the members 3, 4 when the latter are relatively axially moved, the holders may be connected to the members 3, 4 by a rack and pinion or a lever system. In Figs. 12, 13 (not shown), wherein speed changing is by a cylinder, the abutment members 3, 4 are formed of, or are coated by, hard rubber or synthetic resin. In Figs. 14, 15 (not shown) both sets of discs 1, 2 are axially movable relatively to an axially fixed shaft by a two-handed screw. Rollers are disposed between the abutment members 3, 4 respectively of the discs 1, 2 and also between the abutment members 3, 4 and further abutment members keyed to the axially fixed shaft.
Patent GB-463430-A (GB)
Abstract: 463,430. Thermionic cathodes. GENERAL ELECTRIC CO., Ltd., and RICHARDS, J. Sept. 27, 1935, Nos. 26771/35 and 2284/36. [Class 39 (i)] [Also in Group X] Fine straight tubes of refractory insulating- material, such as the insulators in indirectly heated thermionic cathodes, are formed by coating a core 1 with a suspension of the material and winding the core in the form of a polygonal helix on a frame of rods 11; these rods are carried by spring-pressed rods 8, whose outward movement during winding is restrained by a side-plate 12. When winding is complete this plate is removed and the springs strain the coated core which is then dried. If the frame is strong enough the coated core is now sintered, but the tubes may be cut in lengths from the frame and then sintered. The insulating material may be supplied from a bath 5 or be sprayed on the core, or the frame with core may be dipped in a bath; the suspension may be made by ball milling a dry mixture of calcined alumina with aluminium hydroxide to which suitable amounts of anhydrous aluminium nitrate and water are added and then ball milled. Multiple bore tubes may be formed by drawing on to the frame two parallel core threads spaced apart the desired distance between the bores. Specification 350,545 is referred to.
Patent GB-1519010-A (GB)
Title: Relaxation oscillator
IPC: H03K3/35
Filed: 1975-11-10
Abstract: 1519010 Semiconductor oscillator HIRADASTECHNIKAI IPARI KUTATO INTEZET 10 Nov 1975 46444/75 Heading H3T In a relaxation oscillator, to separate the functions of switching-over from the capacitor charging to discharging mode from the control of the heavy discharge current, the first role is performed by a bistable multivibrator formed from complementary transistors 14, 15 without a negative resistance regime in their characteristics, the state being dependent with high hysteresis on the voltage on the capacitor 12, while the second role is carried out by transistor 16 which may be replaced by multiple parallel transistors or one or more thyristors, in each case switched on by the change-over of the bistable circuit when the voltage on capacitor 12 rises to its upper limit and switched off when the bistable circuit changes back at its lower limit. The capacitor 12 is recharged via charging unit 6 giving a sawtooth waveform for the voltage on the capacitor and a pulse waveform for the current through the capacitor and transistor 16. Voltage swings of 1kV and discharge currents of 100 A can be achieved.
Patent GB-1422814-A (GB)
Title: Bending compensated roll for a calender
IPC: B29C43/52
Filed: 1973-10-05
Abstract: 1422814 Rollers HERMANN BERSTORFF MASCHINENBAU GmbH 5 Oct 1973 [21 Oct 1972] 46543/73 Heading F2U A roll (for rolling out plastics to form a sheet) comprises a shell 1 encircling a core 2 from which it is spaced and supported by resilient elements 3, 3a, 3b, of stiffnesses increasing from the ends towards the centre of the roll. The elements 3, 3a, 3b may be metal tubes with different bores, and may be welded together with rods 4 and end caps 5a to form channels in a circuit 9 ... 15 for a heating medium. The elements 3, 3a, 3b, and rods 4 may be located in shallow grooves (3c) Fig. 3 (not shown) in the core.
Patent GB-1160618-A (GB)
Title: Valve Assembly
IPC: F15B13/043
Filed: 1967-10-16
Abstract: 1,160,618. Valves. PARKER-HANNIFIN CORP. 16 Oct., 1967, No. 46984/67. Heading F2V. A valve, adapted to control the state of a motor 18, comprises a main housing 24 having disposed therein a cartridge 28 and having mounted thereon a pilot valve assembly housing 27, the cartridge providing two inwardly extending flanges 29, 30 whose sides 45, 48 respectively constitute seat surfaces for two closure members 54, 55 mounted on a spindle 53 having a piston 9 at one end. The valve members are normally biased by a spring 73 to the position shown, in which the motor chamber 15 is cut-off from an inlet chamber 12 but communicates with an outlet chamber 14. To connect the motor to the inlet and to shut-off the outlet, a solenoid 89 is actuated so causing an armature 85 to move leftward against the bias of a spring 96 and thereby to open port 83, this permitting flow from the inlet to a piston chamber 88 via lines 74, 76, 77, 86 and 87, the piston and hence the valve members being thereby forced to move downwardly. To return the valve to its original state, the solenoid is de-activated and fluid pressure within the piston chamber 88 is relieved to atmosphere via line 86, chamber 84, line 94 and port 95. Alternatively the armature 85 can be moved by a manually rotatable element 97 having an eccentric projection 98. In a modification (Fig. 2, not shown), only one closure member is provided and this is normally biased against a second seat 49 formed on flange 30 but can be similarly moved to a second seat 46 formed on flange 29. In either embodiment, each valve member has bonded to its two sides resilient members 57 which serve to effect positive closure when brought against the seating surfaces.
Patent GB-982529-A (GB)
Title: Improvements in and relating to base supports for christmas trees and the like
IPC: A47G33/12
Filed: 1962-12-14
Abstract: 982,529. Stands. D. N. R. SCHLEE. Dec. 5, 1963 [Dec. 14, 1962], No. 47290/62. Heading A4H. A dismantled support for Christmas trees and the like comprises a rigid cylinder having three pairs of holes 2, 3, equally spaced circumferentially and through which leg members 4 may be placed, anc one or more clamping plates 7 movable by screws 6 in tapped holes in the cylinder to clamp the stem of the tree therein.