baber/WOPTO huggingface dataset:
Patent GB-765610-A (GB)
Title: Improvements in electro-thermally actuated control devices
Inventor: BROEKHUYSEN WILLIAM CORNELIS
IPC: H01H43/30
Filed: 1954-12-28
Abstract: 765,610. Thermal switches. G-V. CONTROLS, Inc. Dec. 28, 1954, No. 37480/54. Class 38(5) [Also in Group XIII] A switch comprises a sealed casing containing the contacts, an elongated hollow operating member which is free from bending when heated by a heater in the operating member to cause elongation of the member, such movement causing a movable arm to operate the contacts. The operating member 20 comprises a channelsection member 22 containing metal strips 30 and an insulated heater 24, and is mounted by a spring strip 34 and a strip 32 on pins 1, 4 sealed in the base 8. The movable arm 42 is connected to the member 20 by a spring strip 50 forming a pivot point Q and to a rigid ambient-compensating member 36 by crossed springs 44, 4& forming a pivot point P. The member 36 is mounted by a spring strip 38 and a strip 40 on pins 6, 7. The arm 42 has a spring arm 52 carrying a contact 54 co-operating with a fixed contact 62 carried by a pin 5, the contacts being separated by a spring 56. A glass bead 58 carried by member 36 is held against a part of a lever 68 which sealingly passes through a flexible diaphragm 66, the lever being adjustable by a screw 70 to adjust the position of contact 54, by pivoting the member 36 and arm 42 about the lower end of member 36. Elongation of member 20 causes arm 42 to pivot about point P to close the contacts. In a modification, (Fig. 8, not shown), the bead engages the casing wall and is adjusted by deforming the casing at this point. In a further modification (Fig. 9, not shown), the contacts are normally closed and are opened by elongation of member 20.
Patent GB-1087708-A (GB)
Title: Improvements in gear shaving machines
IPC: B23Q1/48
Filed: 1965-09-02
Abstract: 1,087,708. Gear-Shaving. J. A. MILLS. Aug. 16, 1966 [Sept. 2, 1965], No. 37576/65. Headings B3B and B3K. A gear-shaving machine comprises a table 15 traversible on a knee 14 to traverse a gear beneath an overhead cutter (13), the table being carried by a beam 19 which is slidable on an upper horizontal surface of the knee and which is coupled by a pin 21 to a universally adjustable feed slide 24 in the knee. Furthermore, a bridge 35 extending longitudinally of the knee straddles the beam, there being connections 39, 36 between the bridge and beam and the bridge and the knee to constrain the beam and table to move always in a direction aligned with the feed slide. The slide 24 is fed by a screw 26 rotated by a motor (34) through gearing 32 in a turntable 28 adjusted by a worm 31 as described in Specification 943,478. The table 15 can be rocked about trunnions 18, by which it is mounted on the beam 19, by an angularly adjustable block (46) co-operating with a follower (44) mounted on the knee. The follower (44) may be adjusted to an off-set position to produce tapered gears.
Patent GB-1174330-A (GB)
Title: Tetrahydropyran Derivatives
Inventor: THOMPSON JAMES MCALLAN CORMACK
IPC: C07D309/14
Filed: 1967-08-16
Abstract: 1,174,330. Acylamino-tetrahydropyrans. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Aug., 1968 [16 Aug., 1967], No. 37617/67. Heading C2C. The invention comprises compounds of the formula wherein R represents an alkoxy, aroyloxy amino or mono- or di-(alkyl, alkenyl, cycloalkyl or aryl) substituted amino group and X represents O or S. The compounds are prepared by condensing glutaraldehyde with a compound R.CX.NH 2  in acidic aqueous solution. Thus, the amino reactant may be a substituted or unsubstituted urea or thiourea or a carbamate. When urea is employed the molar ratio of urea: aldehyde is preferably at least 2: 1 to prevent formation of polymeric products. Commercially available aqueous solutions of glutaraldehyde can be used in the process, these solutions generally containing sufficient acid to provide the required reaction medium. The required pH can also be attained by addition of acetic acid. The reaction proceeds at room temperature. Examples relate to the preparation of the diureido, 3 - methyl -, ethyl -, isopropyl -, nbutyl -, allyl -, phenyl -, cyolohexyl - ureido, bis (3,3 - dimethyl) - and bis (3,3 - diethyl)- ureido - tetrahydropyrans, di - thioureido - and 3 - methylthioureido - tetrahydropyrans, and di(methoxycarbamoyl) and di(ethoxycarbamoyl)tetrahydropyrans.
Patent GB-1324522-A (GB)
Title: Cartridges with improved primers
Inventor: BARR I
IPC: F42B5/34
Filed: 1970-08-05
Abstract: 1324522 Priming compositions AAI CORP 5 Aug 1970 [13 Aug 1969] 37855/70 Heading C1D [Also in Division F3] A percussive primer mixture comprises: %dry weight Lead styphnate .. .. .. 375 Tetracene .. .. .. .. 41 Barium nitrate .. .. .. 325 Antimony sulphide .. .. 152 Aluminium powder .. .. 71 PETN .. .. .. .. 51 or, %dry weight Lead styphnate .. .. .. 31 Barium nitrate .. .. .. 19 Antimony sulphide .. .. 20 Lead dioxide .. .. .. 8 Tetracene .. .. .. .. 10 Zirconium (as catalyst) .. .. 8 PETN .. .. .. .. 4
Patent GB-523308-A (GB)
Title: Improvements in mercury arc electric converters
IPC: H01J13/24
Filed: 1938-12-30
Abstract: 523,308. Metal - vapour converters. GENERAL ELECTRIC CO., Ltd., DONALDSON, D. H., and PRINZ, D. G. Dec. 30, 1938, No. 37869. [Class 39 (i)] In mercury arc converters of the type comprising a pool cathode contained in a vitreous envelope, and an ignition electrode outside the envelope in the neighbourhood of the edge of the pool, the part of the envelope that lies between the edge of the pool and the ignition electrode is changed by making the envelope 1 of cylindrical shape and rotatable about a horizontal axis, the mercury pool 3 lying in the lowest portion of the envelope and in contact with a disc 4 connected to the external lead 5. The anode is formed by an axial rod 7, and the external ignition electrode 6 may be a metallic coating, preferably in the form of gauze, or a ring having a surface small compared with that of the envelope to permit dissipation of heat. In a modification, the envelope may have a central inwardly extending ridge which divides the pool into two parts functioning as cathode and anode respectively. The disc 4 may be shielded from the discharge space or it may be enamelled over its surfaces except where it dips into the pool, to avoid sputtering on to the walls of the envelope.
Patent GB-1521774-A (GB)
Title: Containers for nuclear fuels
IPC: G21F5/12
Filed: 1975-09-16
Abstract: 1521774 Shielded containers W R HOUSHOLDER and N L GREER 16 Sept 1975 [19 Sept 1974] 37929/77 Divided out of 1521773 Heading B4Q A double containment pressure vessel for use in a container for nuclear fuels, e.g. a container as forms the subject-matter of the Specification 1,521,773, comprises two tubular vessels 132, 140 each of which has a closed bottom end 134, 142 and a flanged upper end 136, 152, a closure head 54, 137 bolted to each flanged upper end, and gas seal means 56 located between each closure head and associated flanged upper end, the vessel 132 nesting within the vessel 140. Gas passage means is provided through each closure head 54, 137 and a gas relief valve 58 is mounted in a coupling 60 in each of the coupling 60 in each of the passage means. These valves provide a controlled sleeve of any gas which may be produced from the nuclear fuels contained in a conventional vented polyethylene tube (not shown) carried within the container.
Patent GB-839042-A (GB)
Title: Improved rack structure
IPC: A47B55/02
Filed: 1956-12-13
Abstract: 839,042. Shelf racks. METALTEX S.r.l. Dec. 13, 1956 [Oct. 4, 1956], No. 38072/56. Class 52(1) Pairs of uprights constructed of wire or tube 1 connected girder-wise by welded wires 2 have associated pairs of cross rails 3 of channel section into which are hooked the horizontal rails of rectangular end frames 4 which carry shelves B.
Patent GB-1436207-A (GB)
Title: Electrically heated ceramic utensils
IPC: A47J27/00
Filed: 1973-08-10
Abstract: 1436207 Electrically heated cooking vessels RIVAL Mfg CO 10 Aug 1973 [3 Nov 1972]  38084/73 Heading A4A A utensil 10 comprises a cup-shaped ceramic vessel 11, an electric heating element 36 located adjacent the exterior surface 20 of the vessel 11, and an electrically insulative coating 34 interposed between the element 36 and the surface 20. The inner surface 18 is glazed. An annular lip 12 of the vessel has an inside ridge 22 and a higher, outside concentric ridge 24 with a valley 26 located between them. The under surface of the lip 12 has a smooth contour 30 whereby the vessel 11 may be supported on the upper peripheral edge of a plastics container 40. The space between the vessel 11 and the container 40 is filled with a thermal insulant 46 possibly poured in to form a suitable contour. The exterior wall 20 of the vessel is unglazed, and a silicone varnish 34 is applied to the entire exterior. The heating element 36 is wrapped spirally round the exterior wall 20 outside of varnish 34. A second coat 38 of silicone varnish is applied to the exterior of the first coat 34 and to the exterior of the element 36. The element 36 is connected to a plug (52) via a rheostat (56), the latter controlling the cooking temperature of the vessel.
Patent GB-958405-A (GB)
Title: A device for use in the colouring of crayon pictures
Inventor: JOHNSON JOHN
IPC: G09B11/00
Filed: 1961-10-25
Abstract: 958,405. Shading appliances. STADIUM CHALK & CRAYON CO. Ltd. Sept. 25,1962 [Oct. 25, 1961], No. 38182/61. Heading B6P. An underlay of synthetic moulded plastic or sheet metal has projections such as 2, 3, 4, 5A, 6 and 7, Fig. 1. When a crayon is applied to a line drawing placed on such an underlay, shading is obtained as shown in Fig. 4.
Patent GB-1005602-A (GB)
Title: Improvements in flexible tanks
Inventor: SCHOFIELD PHILIP JOHN
IPC: B65D88/16
Filed: 1962-10-09
Abstract: 1,005,602. Flexible containers. MARSTON EXCELSIOR Ltd. Nov. 26, 1963 [Oct. 9, 1962; Feb. 22, 1963], Nos. 38235/62 and 7276/ 63. Heading B8D. A tank of flexible material which may be collapsed when not in use has an opening provided with a tube 2 through which the tank may be emptied or filled or into which means for inspecting the tank interior may be inserted. The tube may be closed by wooden clamping members, Fig. 5 (not shown), held together by fasteners which pass through the members and through the tube wall, the tube being rolled or folded round the clamping members. Alternatively, Fig. 3, the tube 2 may be wound on one of the clamping members 11 before the attachment of a second clamping member 10 by fasteners 12. Again, Fig. 7, a buckle type of clamping member may be used, the free end of the tube being passed through both slots. A cover piece is strapped over the rolled up tube, Fig. 8 (not shown). A discharge tube may be provided in the base of the tank.
Patent GB-1382354-A (GB)
Title: Clutch release bearings
IPC: F16D23/14
Filed: 1972-08-18
Abstract: 1382354 Clutch control SOC ANON FRAN. CAISE DU FERODO 18 Aug 1972 [20 Aug 1971] 38642/72 Addition to 1126058 Heading F2L In a clutch release thrust bearing assembly wherein a bearing 25 has limited radial movement relative to a bearing carrier 22, a radial flange 23 of the bearing carrier is made of synthetic plastics material and is in direct frictional engagement with the outer race 28 of the bearing. The outer race 28 may be held in engagement with the flange 23 by a corrugated spring 29 acting between the outer race and a cap 31. Alternatively (Figs. 6-10, not shown), the natural resilience of the cap 31 may be utilized to hold the bearing against the flange 23. The cap 31 may be made of plastics material and secured to the flange 23 or may (Fig. 1, not shown) be a metal cap secured to the flange 23. The bearing carrier 22 may be formed integrally with a guide tube 24. As shown, a plate 40 secured to the flange 23 has lugs 41 which are engaged by the clutch release fork. In Fig. 8 (not shown), the clutch release fork acts on lugs (23a) formed integrally with the flange 23. In Figs. 9 and 10 (not shown), the bearing carrier is formed integrally with pivot pins (59) which engage the release fork.
Patent GB-1061758-A (GB)
Title: Production of polyesters
IPC: C08G63/78
Filed: 1963-10-02
Abstract: Polyesters are made by reacting one or more dicarboxylic anhydrides with one or more of ethylene oxide, 1:2-propylene oxide or 1:2-butylene oxide in the substantial absence of water and in the presence of (a) in initiator which is a mono- or poly-carboxylic acid or a polyhydric alcohol and (b) a catalyst which is an oxide, acetate, butyrate, stearate, oleate, naphthenate, chloride, phosphate or nitrate of zinc, tin, manganese, lead, nickel, cobalt or cadmium. Specified dicarboxylic anhydrides are maleic, itaconic, succinic, glutaric, phthalic, dihydrophthalic, tetrahydrophthalic, tetrachlorophthalic and endomethylenetetrahydrophthalic anhydrides. Specified initiators are (i) isophthalic and terephthalic acids and acids formed by hydration of the above anhydrides and (ii) glycerol, trimethylol ethane, pentaerythritol and glycols formed by hydration of the above epoxides.  The reaction may be effected continuously in a vertical, horizontal or inclined tube provided with a shaft having arms carrying spiralled scraper blades which keep the walls of the tube free of resin and impel the reactants through the tube. At the end of the reaction, the polyester may be heated to about 200 DEG C., and this will isomerize any maleic units to fumaric units.  Those resins derived from ethylenically unsaturated dicarboxylic anhydrides may be copolymerized with unsaturated monomers. In Example 1, a polyester was made by reacting maleic anhydride, phthalic anhydride, propylene oxide and ethylene glycol and may be copolymerized with styrene or vinyl toluene.  In Example 2, a similar polyester was mixed with styrene, and possibly an inhibitor (e.g. hydroquinone and/or trimethylbenzyl ammonium chloride) and the mixture cured after the addition of benzoyl peroxide.  Reference has been directed by the Comptroller to Specifications 998,248 and 1,000,534.
Patent GB-838673-A (GB)
Title: Improvements in and relating to panel assemblies for use in electrical apparatus
IPC: H05K1/11
Filed: 1957-12-13
Abstract: 838,673. Two-part couplings. UNITEDCARR FASTENER CORPORATION. Dec. 13, 1957 [Feb. 27, 1957], No. 38872/57. Class 38 (1). A printed circuit panel 10 (Fig. 3) has integral component receiving sockets 14, 15 and 16 moulded with it, each socket having a number of holes 14b, 15b, 16b for receiving the terminal pins of valves and other components. The sockets have ears 14a, 15a, 16a each having holes 14d, 15d, 16d to accommodate spring tongues for connecting valve shields to earthing conductors in the printed circuit. The holes 14b, 15b, 16b contain contact members 18 (Fig. 7) which grip the valve &c. pins and have small passages extending through to the under aurface of the panel which accommodate tails 17 by which contacts 18 are connected to recesses 28 which accommodate parts of the printed circuit. The panel contains circular and rectangular holes 19, 20, 21 which are of enlarged cross-section 22 (Fig. 4) in the upper part of the panel thickness and communicate with enlarged coaxial recesses in the under surface of the panel containing parts 23 (Fig. 4) of the printed circuit. The panel has notches 11, 12 for positioning purposes during assembly operations and mounting,
Patent GB-1119993-A (GB)
Title: Improvements in radar camouflage nets
IPC: H01Q17/00
Filed: 1966-09-01
Abstract: 1,119,993. Blocking oscillators. INTERNATIONAL STANDARD ELECTRIC CORP. 28 Oct., 1966 [2 Nov., 1965], No. 48369/66. Heading H3T. [Also in Division G3] A voltage stabilizing circuit comprises an input terminal UE; an output terminal UA; a terminal O common to input and output; a series switching transistor T which forms a blocking oscillator in conjunction with a resistor R 1  and a transformer having a primary winding P, a feedback winding R and a secondary winding L; a storage capacitor C across which the output voltage is developed; a Zener diode Z connected between the base of transistor T and terminal O; and a resistor R 2  serving to limit the Zener current and the base current in the transistor to admissible values. The arrangement is such that when the charge on the capacitor C reaches a certain value, the switch-over of the transistor T from the conductive to the non-conductive state is initiated not, as in the normal operation of the components forming the blocking oscillator, by saturation of the transformer core but by the voltage at the base of the transistor reaching the Zener voltage, so that the duty cycle of the oscillator automatically adapts itself to variations in the input voltage and the output voltage is maintained constant.
Patent GB-1316057-A (GB)
Title: Process for the selective separation of solid rendering products
IPC: A23K1/10
Filed: 1971-08-20
Abstract: 1316057 Treating offal; animal feed SYBRON CORP 20 Aug 1971 [18 Nov 1970] 39205/71 Headings A2B and A2U A dried, non-compacted, free flowing meal obtained from the low-temperature or coldstate rendering of animal or fish materials, particularly slaughterhouse or packing house scrap materials which may contain non-animal material such as straw, sawdust, is separated into fractions by gravity classification. Separated fractions may be recombined to produce blends suitable for production of gelatin or for use as animal feeds. As shown, animal scraps &c. are fed to a grinder 4 where they are reduced to particle sizes in the range 1/4 to 1¢ inch and then fed by a pump 7 to a scroll-type centrifugal separator 12 where the temperature is raised to between 150‹ and 220‹F by injection of steam at 10, such treatment, which is not at sufficiently high temperature to cause degradation of the protein &c.. being defined as cold-state rendering. The separated solids pass to a dryer 17 and the resultant meal is divided according to particle size on a screen 18. At least one of the fractions from the screen is fed to a gravity clasifier 23 in which a fan-generated, countercurrent air flow separates the material on a specific gravity basis into various fractions 30, 31, 32, 33, and a dust fraction collected at 34.
Patent GB-997691-A (GB)
Title: Improvements in or relating to implements for the lateral displacement of crop lyingon the ground
IPC: A01D78/00
Filed: 1961-11-02
Abstract: 997,691. Haymaking machines. C. VAN DER LELY N.V. Nov. 2, 1961 [Nov. 2, 1960], No. 39276/61. Heading A1F. in a haymaking machine comprising a frame 1, 4 carrying a row of vertically displaceable rake-wheels 9 each having a self-contained mechanism 64 at about the level of its hub for reducing its pressure on the ground, the rake-wheels are capable of arrangement in various working positions; in the side-delivery position, all but one of the mechanisms are located between -the overlapping regions of adjacent cake-wheels. The frame comprises a -transverse tube 4 to which the beam 1 is secured by struts 2, 3. Arms 5-8  integral with the beam 1 terminate in plates 59 to which the rake-wheel assemblies are pivoted on vertical stub-shafts 60 (Fig. 6). Each mechanism 64 comprises a box-like arm 65 pivoted on the shaft 60 and adjustable thereabout to occupy the positions 9, 9A, 9B, the last position being for transport only. A stub -axle 69 is integral with a crank-arm 72 carrying the rake-wheel 9 through an axle 73. The axle 69 passes through a fixed sleeve 70 around which is wound a coil-spring 80 having two -legs 81, 82 which extend on each side of the axle 73 and on each side of an abutment 84 fixed to the arm 65, so that both upward and downward movement of the rakewheel is resiliently opposed. In the transport position 9B a supporting cam 62A fixed to the bottom of the shaft 60 engages below the crank-arm 72 to maintain the rake-wheel out of ground-contact. For swath-turning, some of the rake-wheels are transferred to a second beam 10 pivoted about a vertical shaft 16 carried by a plate 11B on the end of the tube 4. The beam 10 can be fixed in position by a pin 19 and adjusting sector 12. The tube 4 is connected to the lower lift-links 103, 104 by pins 25, 30, the pin 25 being adjustable fore-and-aft on an arm 24 pivoted at 23 to a vertical sector plate 11 secured both to the tube 4 and to the plate 11B. The upper lift-link 105 is pivoted to a pair of parallel arms 33, 34 adjustably pinned to the strut 2 at 32, and resiliently coupled to the tube 4 throught the rod 38 encircled by springs 41, 43 engaging a lug 40 integral with the tube 4. The machine is supported on a single wheel 46 carried on a bell-crank 48, 48A pivoted to a lug 47 on the tube 4 and adjustable by a crank 53 and captive-nut 52. Specifications 997,692 and 997,693 are referred to.
Patent GB-872680-A (GB)
Title: Dual purpose pumps for inflatable liferafts
Inventor: THORPE-WOODS HENRY
IPC: B63B7/08
Filed: 1958-12-05
Abstract: 872,680. Diaphragm pumps; inflating pumps. INTERNATIONAL MARINE RADIO CO. Ltd. Dec. 4, 1959 [Dec. 5, 1958], No. 39305/58. Classes 8(1) and 102(1). A pump for inflating a life raft and pumping water out of the raft comprises inlet and outlet orifices 12, 13 respectively and two connectors 19, 20 fixed by a chain 18 to the pump, the connector 19 having a bore of the same size as the outlet orifice while the connector 20 has a bore of smaller size and an adaptor 21 for attachment to the air valve of the raft. A flexible tube (not shown), is attached to the inlet orifice 12 and may be provided with a strainer, which is immersed in the water of the raft to pump the water over the side through connector 19 and is removed from the water to pump air into the raft through connector 20. The pump is operated by a handle 5 and flanges 11 are provided for holding the pump when in use.
Patent GB-810254-A (GB)
Title: Electromagnetic vibratory massage apparatus
IPC: A61H23/02
Filed: 1956-12-29
Abstract: 810,254. Massage appliances. GLAESER, H. Dec. 29, 1956, No. 39572/56. Class 81 (2). Electromagnetic vibratory massage apparatus comprises a vibratory armature to which a narrow elongated resilient massage applicator is connected. A massage applicator having holes 3 for selectively attaching to a vibrating member of a massage apparatus comprises a narrow elongated elastic metal blade 1. The blade may carry a weight the position of which may be adjusted along the length of the blade. The blade 8 may have longitudinal slots 9 and may be bent into a U-shape. The free end of an unslotted U-shaped blade may carry a shaft 13 terminating in a sphere 17. A blade may have one slot to the inner end of which a tongue 16 of non-conducting material, e.g. glass, is attached. Two blades 11 secured facing one another to the massage apparatus, separated at their free ends by a wedge 12 and carrying impact plates 14 at their free ends may be provided.