baber/WOPTO huggingface dataset:
Patent GB-132610-A (GB)
IPC: H01H77/06
Abstract: 132,610. British Thomson - Houston Co., and Hastings, H. C. Sept. 18, 1918. Electro - magnetic switches.-In a lock. out switch of the kind having a shunt closing - winding 10 operating on the contact member 13, 15 at one side of its pivot, and a series holding- o u t winding 16 operating on the other side, the magnetic circuits of the two windings being independent of each other, a third winding 18, which is a shunt winding and may be in series with the closing-winding and has a magnetic circuit which is independent of the others, acts as an additional holding-out winding and exerts a holding-out force which varies in the same way as the closing- force of the winding 10 with variation of voltage and temperature of the coils, so that these variations are compensated for. The series coil 16 is arranged upon one limb of a U-shaped core, this limb carrying an adjustable stop 20, 21 for varying the reluctance of the magnetic circuit of the series closing-coil; the other limb 17 acts a polepiece. The auxiliary shunt coil is similarly arranged on a U-shaped core 19, except that the coil is above the pole-piece instead of below. The switch is without spring control and normally assumes the open position by gravity.
Patent GB-495332-A (GB)
Title: Improvements in or relating to films, filaments and other shaped articles made by hardening proteins coagulated from their solutions
IPC: D01F4/00
Filed: 1937-05-10
Abstract: Filaments, films, and other shaped articles made from protein solutions by coagulation and treatment with a hardening agent such as formaldehyde, are improved in their resistance to hot acids and/or in their water-repellent properties by subjecting them to the action of a volatile anhydride or ketene of an aliphatic acid.  The anhydride or ketene may be employed in vapour or liquid form or in solution. In the latter case suitable solvents for the anhydride or ketene are volatile substances such as trichlorethylene, ligroin, toluene, benzene or mixtures of these, or non-volatile substances such as olive oil or turkey red oil. In one example, ground nuts are extracted with a saline or alkaline solution, and the protein is precipitated from the solution with sulphur dioxide.  The protein is dissolved in an aqueous solution of urea, and, after ageing, is spun into a bath containing ammonium sulphate, sulphuric acid, glycerol, zinc chloride, and water.  The filaments so formed are hardened with formaldehyde, dried, and subjected in the form of threads, staple fibre, yarn or fabric, to the action of acetic anhydride vapour. Other examples refer to the treatment of hardened filaments of ground nut protein or casein with acetic anhydride or ketene.  It is stated that the treatment with anhydride or ketene modifies the dyeing properties of the protein filaments, &c., so that the treated articles have an affinity for acid dyestuffs of the same order as that of wool.  Specification 467,704 is referred to.
Patent GB-822976-A (GB)
Title: N:n dinitroso-n : n-dimethylglutaramide and its use in the manufacture of cellular solids
Inventor: DARRALL ROBERT ALFRED
IPC: C08J9/10
Filed: 1957-04-26
Abstract: A blowing agent for natural rubber and synthetic polymers which starts to decompose at 60 DEG  C. and can be used with plastics containing small amounts of mineral acid is N:N1-dinitroso - N:N1 - dimethylglutaramide.  Synthetic polymers referred to are those from butadiene, styrene, acrylamide, vinyl acetate, vinyl chloride and acrylic and methacrylic acid esters.  Several examples of blown natural rubber are given ranging from a microcellular rubber of 150% expansion to a cellular rubber of 480% expansion.  Specification 587,023, [Group IV], is referred to.ALSO:The invention comprises N,N1-dinitroso-N,N1-dimethyl glutaramide which may be prepared by treating N,N1-dimethyl glutaramide with nitrous acid or nitrosyl chloride, preferably at between - 10 DEG  and 25 DEG  C. The nitrosation may also be carried out by adding sodium nitrite to a mixture of the glutaramide and hydrochloric acid.  In the examples: (1) HCl is added to a mixture of N,N1-dimethyl glutaramide, sodium nitrite and water at - 5 DEG  C. over 2 hours, further nitrite is added followed by further HCl, keeping the temperature below 3 DEG C., 79% of a yellow solid decomposing at 80 DEG  C. is obtained; (2) a similar preparation is carried out below 15 DEG  C.; (2) a mixture of the N,N1-dimethyl amides of glutaric, succinic and adipic acids, obtained by treating a mixture of the esters with methylamine, is nitrosated by a similar method. N,N1-dimethyl-N,N1-dinitroso glutaramide may be used as a blowing agent for preparing rubber and plastics in a cellular form.  Specification 587,023, [Group IV], is referred to.ALSO:A blowing agent for natural rubber and synthetic polymers which starts to decompose at 60 DEG C. and can be used with plastics containing small amounts of invinyl acid is N : N1-dinitroso-N : N1-dimethylgluteramide.  Synthetic polymers referred to are those from butadiene, styrene, acrylamide, vinyl acetate, vinyl chloride and acrylic and methacrylic acid esters.  Several examples of blown natural rubber are given ranging from a microcellular rubber of 150% expansion to a cellular rubber of 480% expansion.  Specification 587,023 is referred to.
Patent GB-1121775-A (GB)
Title: Compositions for use in supporting or holding objects during machining operations
Inventor: ARGUESO LUIS MANUEL
IPC: C08L91/06
Filed: 1967-03-22
Abstract: A composition comprises, in parts by wt.: carnauba wax, 47 1/2 -52 1/2 ; Burgundy pitch, 30-40; terpene phenolic resin, 12 1/2 -17 1/2 ; hydrogenated vegetable oil, 5-10; and glass fibre.  It may also contain metallic powder, e.g. Al or Fe; CaCO3; and SiO2 powder. Burgundy pitch is an aromatic oil resin from Norway Spruce distillation.  The oil may be hydrogenated soy bean oil.  The composition may be used to hold objects rigidly for machining.ALSO:A composition comprises, in parts by wt: carnauba wax, 47 1/2 -52 1/2 ; Burgundy pitch, 30-40; terpene phenolic resin, 12 1/2 -17 1/2 ; hydrogenated vegetable oil, 5-10; and glass fibre. It may also contain metallic powder, e.g. Al or Fe; CaCO3; and SiO2 powder. Burgundy pitch is an aromatic oil resin from Norway Spruce distillation.  The oil may be hydrogenated soybean oil.  The composition may be used to hold objects rigidly for machining.
Patent GB-667931-A (GB)
Title: An improved device for limiting the maximum fluid level in the filling of containers
IPC: H01M50/627
Filed: 1950-05-30
Abstract: 667,931. Batteries. BOSCH GES., R. May 30, 1950 [May 28, 1949], No. 13428/50. Class 53. [Also in Group XVII] A device for limiting the amount of liquid poured into an accumulator comprises two half-tubes 1, 2 having sloping flanges 4, 5 disposed in the filling nozzle 7. The halftubes are held tightly together by an elastic ring 6 and form a tube through which liquid is poured into the accumulator. When the liquid reaches the lower end of the tube the air trapped in the accumulator prevents further entry of liquid which remains in the tube and nozzle 7. When the stopper 8 is pushed down or screwed into the nozzle it presses on the flanges 4, 5, causing the halftubes 1, 2 to separate as shown in Fig. 4. Air in the accumulator now escapes through the opening between the parts 1, 2, and through a vent 12 in the stopper and the liquid in the nozzle flows down into the accumulator. The ring 6 may surround the members 1, 2 below the flange 9 of the filling nozzle. In a modification the members 1, 2 are separated by a conical projection on the stopper 8 engaging a recess in the upper ends of the members 1, 2.
Patent GB-134701-A (GB)
IPC: F04D29/28
Abstract: 134,701. Harman, E. J., and Le Bas, E. Jan. 13, 1919. Impeller blades.-A fan impeller having blades the impelling sides of which are longer than the trailing sides is cast in one piece. It is preferably of an aluminium alloy and in the shape shown in the Figure.
Patent GB-1300726-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1970-03-20
Abstract: 1300726 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 March 1970 [25 March 1969] 13482/70 Heading H1K A semi-conductor device comprises a body 3 of one conductivity type, a surface region 4 of the opposite conductivity type, a further region 15 of the opposite conductivity type extending laterally around the region 4, and an annular channel-interrupting surface portion 18 situated beside the region 15 and between it and the surface region 4. The portion 18 may be a heavily doped region of the one conductivity type, and may adjoin the further region 15 as in Fig. 1, or may partially overlap the region 15 as in Fig. 2 (not shown) wherein the outer circumference of the region 18 lies between the inner and outer circumferences of the regions 15. In addition there may be more than one arrangement of further regions and associated channel-interrupting surface portions as in Fig. 4 (not shown). A further surface region 22, of the one conductivity type may surround the further region(s), and in one embodiment; Fig. 5 (not shown) a metal layer (21), e.g. of aluminium may be deposited on an insulating layer 6, e.g. of silicon oxide or nitride on the body 3 so as to overlie the region(s) 15 and 18 and also be contacted to the region (22). The device may be a transistor, for which purpose an emitter 9 may be formed, and this and the base region 4 may be interdigitated. The body may be of silicon, germanium or a III-V compound, and may have boron and phosphorus dopants. In an alternative diode embdoiment, Fig. 3 (not shown), the portion 18 may be formed by a part of the body 3 lying below an annular gap in the insulating layer 6, the gap lying between the regions 4 and 15. The arrangements are stated to increase reverse breakdown voltage between region 4 and body 3. Specification 1,299,804 is referred to.
Patent GB-552749-A (GB)
Title: Improvements relating to towing devices for aircraft with particular reference to tow cable tension control
IPC: B64D3/00
Filed: 1941-10-21
Abstract: 552,749. Towing. KRONFELD, R. Oct. 21, 1941, No. 13514. [Class 78 (ii)] [Also in Groups XXXIII and XXXV] A towing device for aircraft, drogues or targets includes means responsive to variations in the tension of the tow rope for automatically restoring the tension to its predetermined value. Fig. 1 shows the tail end of a towing aircraft carrying a fitting 3 slidable along a bar 11 against the tension of a spring 10. The towing cable 2 is connected to the fitting 3 by a quick-release device 4 and the fitting 3 is connected by a cable 5 to the throttle control so that an increase of tension in the cable 2 causes a reduction of the throttle opening. The cable 5 is connected to an intermediate member-such as a toothed wheel to which the throttle lever can be coupled by a spring pawl. The elevator or screw-pitch control may be actuated by the variations in cable tension. Alternatively the cable may be passed over a pulley and around a winch which is driven by a reversible electro-motor or hydraulic motor to wind up or pay out the cable as the pulley is displaced against centring springs by the variations in the tension of the cable. Fig. 4 shows the two sections 2a, 2b of a towing cable of a glider connected through springs 29, 30 to quick release points 31, 32 on the wings, and by extensions of these cables to air brakes 27, 27a, so that relaxation of tension in either cable results in the air brake being raised. Actuation of the quick release devices also moves catches for retaining the air brakes in their inoperative position. Where electric transmission is used the tension spring assembly may actuate the controls of both the towed and towing aircraft.
Patent GB-594401-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1944-07-15
Abstract: 594,401. Slicing-machines. BERKEL &-PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., and THOMAS, H. July 15 1944 No. 13570. [Class 28 (ii)] The pusher 9 of a slicing- machine, especially of the gravity feed type, can be pivoted up from the full line operative position in the substance carrier 1, 2, then swung through 90 degrees and then folded down so as to be stowed into the dash-dot line inoperative position clear of and alongside the carrier. The pusher when at the top inoperative end of the carrier remote from the slicing plane may be swung out without lifting and then slid into the same stowed position behind the wall 2. The pusher is supported on a sleeve 13, Fig. 12, sliding on bar 10 mounted behind the back wall 2 of the carrier. The pusher is first lifted by its handle 12 so that it pivots about an axis C of a bearing pin 17 until clear of the carrier wall 2, a locking pin 18 then being clear of its seat 19. The pusher is then turned along with its swivel block 16 about an axis D of a bearing pin 15 until it is outside and parallel to the wall 2, and is then lowered about C behind the wall. The sliding sleeve 13 supporting the pusher 9 is held against turning round the bar 10 and carries a bearing pin 15 in the axis D about which the pusher pivots. A domed cylindrical block 16 (connected to the pusher 9) seated on the boss 14, is secured to the bearing pin 15. At a right angle to 15 is a second bearing pin 17 parallel to and above 10, and journalled in a bearing in 16, both ends of 17 extending beyond the block 16. The axis of 17 is the axis C, which is the pivot of all lifting and lowering movement of the pusher, so that pins 15 and 17 together act as a universal joint. A locking pin 18 prevents movement of the pusher 9 about the pin 15 except when the pusher is high enough above the rear wall 2 of the carrier. A seat 19 in the sleeve 13 engages the locking pin 18 until the pusher is high enough. Pin 18 also limits the extent that the pusher can be lifted about the axis C, and also its lowering extent when it engages with spaced end projections 21 on the swivel block 16, Fig. 7. Pads 22, 23 on sleeve boss 14 engage the top and rear of the wall 2. Additional support for the pusher in operative position comprises a knob resting in the trough 1. When in the inoperative position a platform, not shown, may be provided on the carrier structure 1, 2, 3. The swivel movement of the pusher is also limited to about 90 degrees by a pin 26 engaging spaced end projections (27 not shown) on the boss 14. To take up wear on 27 an adjustable pin (29 not shown) is provided.
Patent GB-271505-A (GB)
Title: Improvements in thermostatic switches
IPC: H01H37/54
Filed: 1927-05-20
Abstract: 271,505. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Forshee, F. F.). May 20, 1926, [Convention date]. Thermal switches, particularly for flat irons and other electrically - heated devices, comprise a contact - carrying lever having a loose pivotal connection with its support to ensure good connection even though the contact member has been deformed as by arcing. The metal support 10 has lugs 11 provided with shoulders 12 which space a bimetallic disc 13 from the plate. An opening in the plate receives an arm 15 of an L-shaped lever 16, the opening being somewhat larger than the arm to allow of a loosely pivoted connection. Shoulders 17 on one side, and a bend 18 on the other side of the plate serve to position the lever, which carries at its free end a bridge member 19 insulated by mica sheets 21 and secured to the lever by a rivet 20. Screwed to the disc 13 is a stud 28 extending through an opening in the plate and carrying nuts which serve to engage the under side of the lever 16 and break the circuit. The lever mav be of channel strip to provide strengthening flanges 36 and is maintained in operative position by nuts 34, 35. In the closed position shown, current can pass from one terminal 24 through a conductor 23 to one fixed contact 22, across the bridging member 19 to the other contact 22, conductor 23, and terminal 24. At a certain temperature the disc raises the lever and breaks the circuit, and owing to the loose pivot and loose engagement between the nuts and the lever the bridge member 19 will at all times engage contacts 22 when the device is in horizontal position. The contacts 22 and conductors 23 are insulated by mica sheets 26 from the plate and are secured thereto by rivets 27.
Patent GB-580525-A (GB)
Title: Fabrics for balloon casings
IPC: D06M17/10
Filed: 1941-10-24
Abstract: 580,525. Compound sheet materials. HABGOOD, B. J., HARPER, D. A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 24, 1941, No. 13680. [Class 140] Balloon fabric comprises outer plies of fabric bonded together with an organic diisocyanate modified linear polyester or polyesteramide, e.g., such materials as described in Specification 553,733, [Group IV], cured or not with formaldehyde or a formaldehyde liberating substance in the manner described, e.g., in Specifications 580,524 and 580,526, [both in Group IV], and the polyester &c. material may be subjected to mechanical working whilst in the plastic condition as described in Specification 572,738, [Group IV], so as to give it an improved solubility in organic liquids and may have incorporated therewith a stabilizer or antioxidant such as hydroquinone, curing catalysts, fillers, other plastic materials, de-tackifying agents, plasticizers and pigments. The ingredients with or without organic solvents or swelling agents may be mixed in a mill and formed into a sheet or film, or spread or calendered on to the fabric. 100 parts uncured diisocyanate modified polyester amide made from ethylene glycol, adipic acid, ethanolamine, and hexamethylene diisocyanate are milled with 2 parts hydroquinone and made into a dough by incorporating therein 300 parts of a mixture of ethyl alcohol and benzene. The dough is spread on the fabric and the latter doubled over. Ten parts of a formaldehyde liberating substance, viz., dimethylolurea dimethyl ether may be compounded with the polymer and the stabilizer. Alternatively a polyester-amide made by heating adipic acid, ethylene glycol, hexamethylene diammonium adipate and water is modified by heating with hexamethylene diisocyanate.
Patent GB-1431331-A (GB)
Title: Nonspill battery vent plug
Inventor: KARPAL D
IPC: H01M2/12
Filed: 1973-03-21
Abstract: 1431331 Battery vent plugs TELEDYNE Inc 21 March 1973 13702/73 Heading H1B A non-spill battery vent plug 10 comprises a weight member 36 resting on shoulder 18 in upper compartment 20 of housing 12, a valve member 54 having a substantially frusto-conical head portion 56 making line contact only with a circumferential lip 46 supporting it and defining opening 48 into cavity 42 in the bottom surface of weight member 36, and a sealing member 64 surrounding valve stem 58 so as to leave a passage 74 and supported by enlarged end 66, tilting of weight member 36 when the axis of plug 10 tilts causing sealing member 64 to be raised to close aperture 26 leading into lower compartment 22 of housing 12. Weight member 36 may comprise a portion 38 of lead integrated with a plastics washer 40 by cold flow into apertures 52 therein, washer 40 further having venting apertures 50 whereby gas can reach aperture 72 in cap 16 when the plug axis is substantially vertical. Contaminating material forced through aperture 26 when it is reopened by the return of the plug to the vertical position is deflected from aperture 48 by rounded portion 62 on portion 60 of member 54. Member 64 is of sufficiently resilient material, e.g. rubber, that, if excessive internal pressure develops when it is closing aperture 26, end portion 66 of member 54 will be forced through aperture 74 and weight member 36 will push off cap 16 releasably secured to housing 14 by the interengagement of at least two protuberances 30 with holes 28. In the normal position, if internal pressure forces member 64 against bottom surface 24 of the plug, opening 74 provides a venting passage.
Patent GB-1017321-A (GB)
Title: Improvements in or relating to the manufacture of boots and shoes
IPC: A43B13/32
Filed: 1964-04-02
Abstract: 1,017,321. Injection moulding footwear. I. & C. A. SCHNEIDER G.m.b.H. April 2, 1964 [April 2, 1963], No. 13708/64. Heading B5A. [Also in Division A3] A shoe has a sole edge 6 injection moulded on to the lasted upper 3 and has an outer sole 14 (Fig. 2, not shown), injection moulded on to the shoe bottom, the material of the sole edge differing from that of the outer sole. The mould consists of a two-part side frame 1 and a movable bottom die 5 which in its first position (Fig. 1) defines the mould cavity for the sole edge 6 and heel surround 7, 9 which is injected through a duct 11. The bottom die 5 is then dropped to its second position (Fig. 2, not shown), where it defines the mould cavity for the tread sole 14 which is injected along ducts 12, 13 which register with the duct 15 when the bottom die is in its second position. The shoe includes a filler sole 8, e.g. of felt and heel block 10 which, during the moulding of the sole edge 6, are pressed against the bottom die to prevent the mouldable material of the sole edge entering the ducts 12, 13. In a second embodiment (Fig. 4, not shown), the shank region is moulded during the first stage and is defined by a fixed die 16 and the outer sole is moulded in two parts 14<SP>1</SP>, 14<SP>11</SP>.
Patent GB-907602-A (GB)
Title: A new or improved wedge
IPC: B25G3/28
Filed: 1961-04-17
Abstract: 907,602. Wedges. VISKAVERKEN A.B. April 17, 1961 [April 19, 1960], No. 13773/61. Class 89 (2). A tubular wedge comprises at least two tapered portions 11, 12, 13 on at least one of the inner and outer surfaces of the wedge, the larger end of portion 12 being larger than the smaller end of portion 11 but smaller than the larger end of portion 11. The wedge may have a cylindrical or polygonal inner wall and may be formed from a single piece of steel or several pieces connected end-to-end. Alternatively, the wedge may be of oval &c. cross-section.
Patent GB-101709-A (GB)
Title: Improvements in or relating to the Manufacture of Alkaline Peroxide.
Inventor: JAUBERT GEORGE FRANCOIS
IPC: C01B15/043
Filed: 1916-09-28
Abstract: 101,709. Jaubert, G. F. Oct. 2, 1915, [Convention date]. Right to Patent relinquished. Air, treating.-Sodium peroxide prepared in porous form by a special process is employed for purifying vitiated air in portable or fixed apparatus for military and other purposes. Reference has been directed by the Comptroller to Specifications 20003/91, [Class 1, Acids, Alkalies, &c.], 8865/04, [Class 90, Non-metallic elements], and 7641/07, [Class f, Acids, Alkalies, &c.<1>
Patent GB-741412-A (GB)
Title: Method and means for forming chocolate pastes
IPC: B01F7/00
Filed: 1950-06-02
Abstract: <PICT:0741412/III/1> <PICT:0741412/III/2> In a method for homogenizing chocolate paste, in particular for homogenizing powdered chocolate and cocoa butter, and also the primary mixture of cocoa liquor and sugar, a proportion of fresh components which are not homogenized are continuously added to an already homogenized mixture of the components which is continuously circulated through vats 5 and 15 by pairs of side by side screw conveyers, one conveyer of each pair, 7 and 16, being shown in Fig. 1.  The mixture is forced through draw plates 12, 20 respectively at the end of the vats.  The chocolate passing through the draw plate 20 is raised by a screw conveyer 22 to outlets 25, 26 which divide chocolate mass into two streams, one of the streams passing into the vat 5 for re-circulation, and the other stream passing to a further stage in the process of manufacture.  Fresh components, such as cocoa liquor and sugar, are fed in desired proportions into the vat 5 through volumetric pumps 2 and 4 at a rate equal to the rate of discharge through outlet 26.  The parts of the screw conveyers in the open part of the vat 5 are provided with notches 28, Fig. 3, to produce a stirring effect to incorporate the freshly-added material with the material being re-circulated.  The ratio of freshly-added material to re-circulated material is less than one-third and is preferably about one-sixth.