baber/WOPTO huggingface dataset:
Patent GB-786102-A (GB)
Title: Improvements relating to casting resins
Inventor: PARRISS WALTER HENRY
IPC: C08L63/00
Filed: 1955-06-24
Abstract: Casting resins are prepared by mixing (1) a mixed unsaturated polyester resin; (2) a polymerizable vinyl monomer miscible with (1) and (4), e.g. styrene; (3) an organic peroxy compound, e.g. tert.-butyl perbenzoate; (4) an epoxy resin which is liquid at ordinary temperatures; and (5) an aromatic diamine.  (1) may be derived from an a -b -unsaturated dicarboxylic acid, e.g. maleic anhydride, 50 to 2 mols. per mol. of unsaturated acid of a saturated dicarboxylic acid, e.g. adipic acid, and a polyhydric alcohol, e.g. propylene glycol, and preferably contains an inhibiter, e.g. quinone or tert.-butyl catechol. (4) may be of the type described in Specifications 772,289 and 766,817.  (5) may be a phenylene diamine, tolylene diamine, naphthylene diamine, diaminodiphenyl methane, e.g. 4,41-diamino diphenyl methane, or benzidine.  Preferably component (5) is dissolved in (1) and (2) and component (3) in (4) and the two solutions then mixed. Fillers, e.g. quartz, silica, mica and talc, may be added and the compositions used in casting miniature transformers and chokes.
Patent GB-121340-A (GB)
Title: Improvements in or connected with Watertight Closures for Boxes and the like.
Inventor: DOBSON ERNEST
IPC: H02G3/08
Filed: 1917-12-11
Abstract: 121,340. Dobson, E. Dec. 11, 1917. Lids and covers. - A hinged cover d of an electric junction or similar box is rendered watertight by packing c of rubber &c., against which the cover is pressed by one or more screw clamps g pivotallv connected to the body of the box. The cover d has a handle d', and is connected to the body of the box by a hinge c having a removable hinge-pin secured by a split pin f.
Patent GB-599008-A (GB)
Title: Apparatus for controlling delivery of refrigerant, and continuous absorption refrigeration systems employing such apparatus
IPC: F25B15/02
Filed: 1943-11-05
Abstract: 599,008. Refrigerating. GIBSON ELECTRIC REFRIGERATOR CORPORATION. Nov. 5, 1943, No. 18405. Convention date, June 27, 1941. [Class 29] [Also in Group XXIX] Absorption systems.-In systems in which liquor is transferred periodically from an absorption vessel 25 to a continuously heated generator 10 through a transfer vessed 28 and a valve device 21, the valve device also controls the flow of refrigerant from the condenser 19 to a capillary tube expansion device 23 at the inlet of the evaporator 24. The capillary tube 60, Fig. 2 is coiled inside a chamber fitted with a strainer 58, and the flow through the tube varies with the extent of surface of the coil exposed to the vapour in the chamber and thus with the supply of refrigenant thereto. The valve device 21 is controlled by a thermal element 46 in the generator, as described in Specification 599,007, and comprises a piston which in one position provides communication between pipes 20, 22. to permit flow to the evaporator while obstructing communication between a high pressure branch pipe 41 and a pipe 42 to the transfer chamber, while in the other position the flow to the evaporator is cut off, the pipes 41 and 42 are connected to establish high pressure in the transfer vessel, and permit a flow of liquor between a pipe 43 from the transfer vessel and a pipe 44 leading to the analyser column 13 of the generator. Vapour from the evaporator is led through a pipe 32 to a riser pipe 31 in an absorber circuit 26, 27, 29, 31, and liquor issues through a branch 37 from the riser pipe to flow into the transfer vessel through a check valve 40. A bleeder passage 48 into the transfer vessel is provided in the weak liquor supply pipe 35 to the absorber so that after the transfer vessel has been discharged rapid absorption of residual vapour takes place therein to lower the pressure and permit the vessel to be refilled from the absorption vessel.
Patent GB-1202158-A (GB)
Title: Means for preventing retrograde movement between two members
Inventor: BENNETT FRANK PRESCOTT
IPC: G03B23/04
Filed: 1968-04-19
Abstract: 1,202,158. Optical slide changers. GAF CORP. April 19, 1968 [April 20, 1967], No.18528/68. Heading G2A. In a slide changing device 10, comprising plates 11, 12, slides (not shown) are stacked in a magazine 15, 16 and pushed from an opening 14 in the plate 11 to a viewing or projection opertive 18, 19 by a portion 22a of a plunger 22 having a device to ensure that a movement of the plunger once started must be completed. A portion of the plunger 22 is located in a slot in the panel 12 and has a recess 27 with a lobe 28 defining pockets 27a, 27b the latter containing a roller 30 which locates in a recess 31 in surface 23 of the slot when the plunger is fully withdrawn. On inserting the plunger, the roller enters the recess 27a and rolls along the surface 23, reversal being prevented until a recess 32 is reached since the roller would be wedged between the lobe 28 and surface 23. Alternatively, a recess 27<SP>1</SP> Fig. 5 (not shown) may open on the upper surface of the plunger and contain a spring-pressed roller. Alternatively, the recess 27 may be in the plates 11, 12 and the recesses 31, 32 in the plunger. Instead of being constantly urged against the slot surface 23, the roller may have resilient ends, engaging the slot sides, to check it and allow wedging against the surface 23.
Patent GB-1441189-A (GB)
Title: Process for preparing graft-modified ethylene polymer or copolymer
IPC: C08F255/02
Filed: 1974-04-29
Abstract: 1441189 Portable containers MITSUI PETROCHEMICAL INDUSTRIES Ltd 29 April 1974 [1 May 1973] 18693/74 Heading B8D [Also in Division C3] Bottles having an inner layer of nylon and an outer layer of a mixture comprising polyethylene and polyethylene grafted with maleic anhydride are produced by a blow-moulding process.
Patent GB-738824-A (GB)
Title: Adhesive bonding method
Inventor: BALFE BERNARD JAMES
IPC: C09J127/24
Filed: 1952-07-24
Abstract: Adhesive compositions comprise after-chlorinated polyvinyl chloride, a volatile organic solvent, and optionally a resin and a plasticizer for the resin.  The resin may be ester gum, damar, rosin or a condensation product of formaldehyde and a phenol such as phenol, a cresol, p-octyl phenol, p-tert.-butyl phenol, p-phenyl phenol or a xylenol.  Specified plasticizers are chlorinated paraffin wax, dibutyl phthalate, tricresyl phosphate and trichloroethyl phosphate. Solvents mentioned are methyl ethyl ketone, acetone, ethyl acetate, and a blend of ethyl acetate and benzene.  The compositions are used in the foot-wear industry and for uniting sheet materials.
Patent GB-146874-A (GB)
Title: Improvements in and relating to self serving apparatus for eating establishments
IPC: A47G23/08
Filed: 1920-07-05
Abstract: 146,874. Ball, C. R. Jan. 15, 1919, [Convention date]. Flat endless-belt conveyers ; discharging devices; driving - gear; belt - retaining devices; sectional frame work; guards and shields to prevent falling off and spilling. - Meals are conveyed from the kitchen to the dining counter or table by an endless belt conveyer which is used also for returning the soiled dishes to the kitchen and for carrying the order slips. The conveyer 10 has hemispherical rubber studs 25 on its upper surface for propelling the trays 28 carrying the meals, and similar studs on its lower surface which engage corresponding depressions 32 on the drums 11, 12 and also by engagement with guide-ribs 23 carried by the framework prevent lateral displacement of the belt. The trays 28 are numbered to correspond to the numbered spaces on the counter or table 8 and are supported by the tracks 18, 19. If a tray is not removed when it reaches a customer it is carried along until it reaches a basket 34. The order slips are placed on the lower run of the conveyer and after passing between the belt and drum 12 fall into a basket 35. A barrier 36 depending from this basket stops the soiled dishes. The framework of the conveyer is composed of sections 16 detachably secured by bolts 17 to the tracks 18, 19. Vertical braces 20 are placed at the junction of adjacent sections. The drums are mounted in adjustable bearings in standards 13, 14. The driving drum 12 may be hand or power driven.
Patent GB-314947-A (GB)
IPC: E02D5/04
Filed: 1929-06-19
Abstract: 314,947. Heumann, F. July 5, 1928, [Convention date]. Piles.-A sheet-piling wall consists of ordinary I-section piles b inserted between seamless tubes a which have been rolled or drawn, or both, so as to form on each side hooks or claws adapted to engage the flanges of the piles b.
Patent GB-1099379-A (GB)
Title: Improved spinner for liquid fuel burner
IPC: F24H9/18
Filed: 1965-05-05
Abstract: 1,099,379. Liquid fuel burners. STANDARD OIL CO. May 5, 1965 [May 11, 1964], No. 18900/65. Heading F4T. The subject matter is the same as that of Specification 1, 001, 911 except that the spinner plate 33 has air openings around its centre and carries vanes 38 which extend beyond the periphery of the plate and which may be straight or curved or twisted.
Patent GB-978471-A (GB)
Title: Improved anti-reflection coating
IPC: G02B1/11
Filed: 1962-05-16
Abstract: 978, 471. Anti-reflection coatings. OPTICAL COATING LABORATORY Inc. May 16,1962 [Sept. 7, 1961], No. 18937/62. Heading G2J. An anti-reflection coating for a substrate as of glass having a refractive index between 1. 45 and 1. 75 comprises a first layer with a refractive index of about 1. 38 and an optical thickness of #/4, a second layer with a refractive index between 1. 9 and 2. 3 and an optical thickness of #/2 and a third layer in contrast with the substrate and having a refractive index between 1. 6 and 1. 85 and an optical thickness of #/4. Magnesium fluoride may form the first layer. The second layer may be of zirconium oxide, neodynium oxide, tantalum oxide, indium oxide or titanium oxide. For the third layer, cerium fluoride, silicon oxide, lanthanum oxide, thorium oxide and neodymium fluoride are suitable. A spectral curve is given for a combination by magnesium fluoride, zirconium oxide and carium fluoride on glass having a refractive index of 1. 52. U.S.A. Specifications 2,478,385 and 3,034,924 are referred to.
Patent GB-782681-A (GB)
Title: Improvements in tracer controlled profiling machines
IPC: B23Q35/18
Filed: 1954-06-29
Abstract: 782,681. Copy-milling. CINCINNATI MILLING MACHINE CO. June 29, 1954 [Dec. 1, 1953], No. 19012/54. Addition to 761,407. Class 83 (3). A modification of the tracer-controlled profiling-machine of the parent Specification comprises settable rate-valve means 100, 103 to control the rate of operation of fluid-operable means 59, 72, a balancing valve 88, 91 to create a pressure drop between the fluid-operable means and the rate-valve means to maintain a constant pressure drop across the rate valve, and tracer-controlled means 81 effective on the balancing valve to vary the pressure drop and so vary the rate of operation independently of the rate valve. The tracer-controlled valve 11, the " manual " or " automatic " valve 27, the hydraulic motor 21 controlling the " direction '' valves 44, 45 through the cam 41, and the tool and work-slides 59, 72, are similar to those described in the parent Specification. The exhaust ports 50, 63 of the " direction " valves 44, 45 are connected through the balancing valves 88, 91 to the throttle valves 100, 103. The throttle valves are adjustable by a camming device comprising rollers 104, 105 rotatable about a fixed axis 108. The back pressures produced in the lines 95, 98 from the throttle valves are communicated through passages 115,. 116<SP>1</SP> to the ends of the balancing valves 88, 91, which assume positions of equilibrium according to the pressure in a central chamber 118, which pressure is set by a throttle valve 119 in the pressure line 83. The feed rate of each slide 59, 72 is therefore determined by the setting of its throttle valve 100 or 103, and adjustment of the valve 119 affects these feed rates but maintains them in the same proportion. The exhaust flow from ports 112, 110 of the throttle valves passes through a safety valve 125, which is closed by a spring 128 if the pressure in the system falls. Exhaust fluid also passes through throttle-valve ports 112<SP>1</SP>, 110<SP>1</SP> to the safety valve, which flow can be cut off by manuallyoperated valves 133, 134 to reduce the feed rates. When a sudden change occurs in the movement of the tracer valve 11, the control valve 81 is moved automatically to allow pressure fluid to be supplied from a pump 139 through lines 138, 135. Furthermore, movement of a throttle portion 158 cuts down the flow from the pump 75 to the pressure line 83, thus slowing down the slide feed rates until equilibrium is re-established. The slowing down results from the lowering of pressure in the chamber 118 causing a readjustment of the balancing valves 88, 91. In a modified construction, the valve 81 is replaced by two valves connected to the lines 22, 23 of the tracer valve and responding to a rise in pressure therein instead of a drop in pressure, as they are connected on the opposite side of the tracer valve. Specification 581,148 also is referred to.
Patent GB-603173-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B3/00
Filed: 1945-07-25
Abstract: The bristles in a brush (see Group XXIII) are tubular and made of thermoplastic resin material, e.g. polyvinyl chloride or polyethylene resin, the tubular bristles being open at their outer ends and closed at their inner ends adjacent to the brush back or handle.
Patent GB-701024-A (GB)
Title: Improvements in or relating to a closing tool for wagon doors
Inventor: STEVENSON HERBERT
IPC: B61D7/16
Filed: 1952-07-28
Abstract: 701,024. Prizing tools. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 28, 1952, No. 19061/52. Addition to 635,410. Class 61 The tool described in the parent Specification for closing wagon doors is provided with a right angled bracket 10 by which it is hooked to the wagon frame 4. The bracket has at its upper end a hook 12 which engages over the top of the side wall 2 and at its lower end a hook 16 for engagement with the hook 9 of the tool. The bracket comprises two steel plates or strips 11, 13 adjustably secured together by bolts 14 which pass through vertical slots in the plate 13.
Patent GB-965641-A (GB)
Title: Improvements in or relating to multiple contact assemblies
IPC: H01R13/629
Filed: 1963-05-14
Abstract: 965,641. Plug-boards. AMP Inc. May 14, 1963 [June 4, 1962], No. 19105/63. Heading H2E. An insulating panel 22 (Fig. 2) carrying contacts 23 is secured in an insulating frame 20 which includes channel members 40, 42, 44, 46, containing the edges of the panel, and an outer metal frame 28 (Fig. 1), comprising metal members 56 (Fig. 3, not shown), recessed into the members of the insulating frame, and secured at their ends to adjacent metal frame members. A frame member 32 may be incorporated consisting of a metal bar 51 (Fig. 4, not shown) surrounded by insulating members 48, 50 and the bolts securing adjacent outer metal members may protrude to form pivots 49 (Fig. 2). When the panel 20 (Fig. 1), is laid parallel with the panel 60, the cam 66 may be rotated by handles 68 to force the panel upwards, and thus cause the pins 24 to wipe against their respective resilient contacts 62 to make a firm and clean contact. The insulating frame may be made of a rag flock filled phenolic resin.
Patent GB-1038822-A (GB)
Title: Improvements in or relating to hydraulic systems
Inventor: KNIGHT JOHN ANTONY
IPC: F15B7/10
Filed: 1964-05-08
Abstract: 1,038,822. Hydraulic apparatus. NORMALAIR Ltd. May 5, 1965 [May 8, 1964], No. 19248/64. Heading F1P. A pressure compensating device in a telemotor circuit comprising a double-acting manually operated master cylinder 1 connected by lines 3, 4 to a double-acting slave cylinder 2 comprises a main piston 11 having a central enlarged portion and an auxiliary sleeve piston 12, slidable on one end of piston 11 and the two pistons together with a stepped cylinder 13 provide a chamber 17 connected by a line 27 to a constant pressure or reference source, a vent chamber 16 and chambers 14, 15 connected by 7, 8 to opposite ends of the slave cylinder; the area of end faces of piston 11 bounding chambers 14, 15 being equal and the area of the opposite end 31 of piston 11 being slightly less than the area of end 30 of piston 12. Assuming the circuit to be fully pressurized and freed of air, normal operation of the master and slave cylinders produces no displacement of pistons 11, 12, An increase in working pressure e.g. due to a temperature rise results in displacement of both pistons 11, 12 until the pressure in chambers 14, 15 is reduced to that of the reference pressure in chamber 17. A fall in working pressure in chambers 14, 15 results in opposite displacement at the main piston 11, the sleeve piston 12 being held by a stop 21 whereby the apparatus may continue to function though the working pressure may be reduced to half the reference pressure.
Patent GB-664873-A (GB)
Title: Improvements in mixture enrichment devices for carburetters
IPC: F02D9/00
Filed: 1949-07-22
Abstract: 664,873. Spray carburetters. SOLEX. July 22, 1949  ' [Sept. 7, 19481, No. 19385/49. Class 7(iii) A choke valve, consisting of a plate 7 moved to block the carburetter air inlet 2, is retracted into a chamber 10 formed between the side of the float chamber 6 and a lid 11 having an extension 13 co-axial with the passage 2, the only air entering the chamber 10 flowing through a groove 22 from a passage 14 connected to the carburetter air filter. The plate 7 may be pivoted at 17 and moved angularly, or it may be moved transversely by a rod passing through a stuffing box in the wall of the chamber 10. The float chamber 6 may be vented either to the chamber 10 or to the passage 14.
Patent GB-219498-A (GB)
Title: Improvements in book covers
IPC: B42F13/00
Filed: 1923-07-30
Abstract: 219,498. Copeland, R. J. July 30, 1923. Covers.-A book cover comprises a thin sheet 1, of vulcanized fibre surrounding and lapped over the edges of a rigid core, the doubled edges of the sheet reinforcing the cover. The sheet is lapped over the top and bottom edges 2 of the cover and may also be lapped over the front edge 3 and hinge edge 12, the sheet being shaped so that its lapped-over edges form a flush surface on the inner side of the cover; or a reinforcing strip 11 of vulcanized fibre may be arranged at the front edge and hinge strips 12 at the hinge edge. The core may comprise rigid channel-shaped metal strips filled with cardboard 6 and separated by millboard strips 7, the strips 5, 7 being held together at their ends by rigid U-shaped strips 8 of metal or vulcanized fibre, and being covered by sheets 9 of tough material, such as vulcanized fibre, forming a flush surface with the strips 8. The sheet 1 is secured to the core by cement and rivets 10. Specification 195,459 is referred to.
Patent GB-798505-A (GB)
Title: Improvements in electro-luminescent devices
Inventor: MASH DEREK HUBERT
IPC: H05B33/26
Filed: 1954-07-02
Abstract: 798,505. Electroluminescence. THORN ELECTRICAL INDUSTRIES, Ltd. May 26, 1955 [July 2, 1954], No. 19520/54. Class 39(1). To permit the use of semi-conducting transparent coatings as electrodes in electroluminescent devices, the backing layer is divided into a plurality of mutually insulated portions. The latter may be a rectangular coating of lead dioxide divided by cutting or scratching along a zig-zag line K, Fig. 5, terminal strips S 1 , S 2  being provided along the edges. Division into an even number of portions is preferred and with four portions, two each may be connected to a terminal, Fig. 3 (not shown) or two are connected together and the other two across the supply. The semi-conducting coating may be of deflocculated graphite applied as a suspension by spraying, painting or flooding and lightly polished to improve its conductivity ; or it may be aluminium or silver applied chemically, by evaporation or by sputtering. Either the backing layer or the transparent semi-conducting layer may be next to the support, which may be of glass or flexible plastic and a wall or ceiling. A reflecting layer may be applied between the backing and luminescent layers. Specifications 798,503 and 798,504 are referred to.
Patent GB-614025-A (GB)
Title: Improvements in or relating to stockings and to the method of production thereof
IPC: A41B11/00
Filed: 1946-07-01
Abstract: 614,025. Stockings. SELLORS, Ltd., F. W., and SELLORS, R. V. July 1, 1946, No. 19536 [Class 141] A stocking, consisting of a tubular blank produced on a circular knitting machine, has the toe formed by cutting the fabric at 8 and 9 and subsequently seaming it. The cut 8 may extend to the heel, as shown, and the heel itself may be formed by reciprocating motion during knitting.
Patent GB-437314-A (GB)
Title: A manufacturing process for a depolymerised starch to be used as adjunct in baking
IPC: A21D2/18
Filed: 1934-07-03
Abstract: A depolymerized starch for use as a baking aid is prepared by heating potato &c. starch in the presence of at least 27 per cent of water, without subjection to pressure or atomization, for a time which at the temperature used is sufficient for the formation of starch depolymerization products but insufficient for the formation of substantial quantities of degradation products, the final product having a waterbinding capacity not exceeding the ratio 1 : 8.  In examples, commercial potato starch containing 20 per cent of water has 10 per cent of water added and is treated on plates or rollers heated to at least 150 DEG  C., for not over 15 seconds; starch containing 38-50 per cent of water is treated for not over 7 seconds on plates or rollers steam-heated to below 100 DEG  C.; an aqueous suspension of potato starch is heated to between 58-63 DEG  C., for not over 15 seconds.ALSO:A depolymerized starch for use as a baking aid is prepared by heating potato &c. starch in the presence of at least 27 per cent of water, without subjection to pressure or atomization, for a time which, at the temperature used, is sufficient for the formation of starch depolymerization products but insufficient for the formation of substantial quantities of degradation products, the final product having a water-binding capacity not exceeding the ratio 1 : 8.  In examples, commercial potato starch containing 20 per cent of water has 10 per cent of water added and is treated on plates or rollers heated to at least 120 DEG  C., for not over 15 seconds; starch containing 38-50 per cent of water is treated for not over 7 seconds on plates or rollers steamheated to below 100 DEG  C.; an aqueous suspension of potato starch is heated to between 58-63 DEG  C., for not over 15 seconds.
Patent GB-611216-A (GB)
Title: Improvements in or relating to laminated products
IPC: B32B27/00
Filed: 1945-07-31
Abstract: Laminated products are made by impregnating a fibrous sheet filler, e.g. paper, textile fabric, or wood veneer, with an aqueous solution of a thermosetting resin so as to give in the impregnated filler a resin content in excess of 20 per cent on the weight of impregnated filler, heating the impregnated filler so as to remove the water and substantially to advance the hardening of the resin so that the resin is rendered insoluble to such an extent that it is not dissolved out during the subsequent resin treatment, further impregnating and/or coating the impregnated filler with a thermosetting resin and heating the product sufficiently to drive off any solvent or other volatile material, but insufficiently to impair the bonding properties of the resin last applied, assembling sheets of the impregnated fibrous material and consolidating them under the action of heat and pressure.  The resin content after the initial impregnation may be 30-40 per cent, and the textile fabric may be heated with aqueous alkali before impregnation.  Phenol-and urea-formaldehyde resins are specified.  Specifications 563,950 and 567,878, [Group VIII], are referred to.  Reference has been directed by the Comptroller to Specification 594,048, [Group VIII].