baber/WOPTO huggingface dataset:
Patent GB-863228-A (GB)
Title: Vinyl alcohol-crotonic acid copolymers
IPC: C08F8/12
Filed: 1958-09-05
Abstract: 863,228. Packaging. AIR REDUCTION CO. Inc. Sept. 5, 1958 [Sept. 5, 1957], No. 28642/58. Class 94(1). [Also in Group IV(a)] Transparent wrappers are made from a selfsustaining water soluble film produced from a vinyl alcohol-crotonic acid copolymer containing from 2 to 20 mol. per cent crotonic acid. The acid may be substituted by an equivalent amount of a crotonate. These wrappers may be used to package soaps, synthetic detergents, bath oils, bleaches, and pest control products, specific compounds are dichlorodimethyl hydentoin, dichloro isocyanuric acid, and trichloro isocyanuric acid. The initial vinyl acetatecrotonic acid copolymer may be prepared by polymerisation in the presence of benzoyl peroxide, partially acetylated polyvinyl alcohol and a small quantity of water as described in Specification 863,229. The alcoholysis step is effected by means of sodium or potassium hydroxide, or sodium or potassium methylate in alcoholic solution, at least 90% of the acetyl groups should be converted to hydroxyl groups and ambient temperatures are preferably used. From 5 to 25% by weight of a plasticiser such as polyethylene glycol may be added.
Patent GB-171585-A (GB)
Title: Improvements in and relating to padlocks and like fastenings
IPC: E05B67/22
Filed: 1920-10-11
Abstract: 171,585. France, A. G. Oct. 11, 1920. Padlocks. - The shackle a of a padlock is U-shaped and is bodily removable from the casing c. The shackle has ratchet teeth b on one or both legs, and is locked to the casing by a single pawl f pressed into engagement by a spring g. The spring g and pawl f may be integral with each other. The casing c is made of sheet-metal halves riveted together by pins e and d, the pin d forming the support of the spring pawl. The pawl is released by a suitable key. If desired, the casing may be made by stamping and pressing a single piece of sheet metal.
Patent GB-789188-A (GB)
Title: Improvements in or relating to speed changing mechanism for knitting machines
IPC: D04B15/94
Filed: 1955-10-10
Abstract: 789,188. Knitting-machines. SCOTT & WILLIAMS, Inc. Oct. 10, 1955 [Nov. 17, 1954], No. 28832/55. Class 74 (2). [Also in Group XXIV] A three-speed gear-box is interposed in the drive from the motor or line shaft to the fast and loose pulleys of a knitting machine. There being high and low speed fast pulleys on the machine driving shaft controlled by the usual belt slipping means from patterning devices on the machine, the combination of the gear-box and high and low speed pulleys gives a range of six speeds for the machine. The gear-box is controlled pneumatically by electrically operated valves in accordance with the dictates of the patterning devices of the machine. The drive from the motor or live shaft is transmitted through a pulley 14 freely rotatable on a shaft 6 and which drives gear wheel 22 through an idler from gear wheel 18, the wheel 22 being keyed to a shaft 24 to which is also keyed gear wheel 30 in engagement with gear wheel 32 freely rotatable on shaft 6. Also keyed on shaft 6 is a clutch portion 38, normally held in engagement with a corresponding portion on gearwheel 32, and a gear-wheel 42 which engages with gear-wheel 44 freely rotatable on shaft 24. The wheel 44 has a clutch face which is normally disengaged from its clutch 50 keyed on shaft 24. A clutch 54 also keyed on shaft 24 is normally held disengaged from the clutch face on a freely rotatable gear wheel 60 which engages with a gear wheel 64 having a one-way drive connection with shaft 6. The opposite end of shaft 6 carries a pulley 12 having a belt connection to the fast and loose pulleys of the machine. Fork members engage the clutch members 38, 50, 54 and are secured to rods influenced by springs to retain the clutch 38 engaged and the clutches 50, 54 disengaged. In this position a medium-speed drive is transmitted. The rods are further controlled by rockers engaging their ends to either disengage clutch 38 and engage clutch 50 in which case a high-speed drive is provided or to disengage clutch 38 and engage clutch 54 in which case a low-speed drive is provided. If the clutch 54 is maintained closed during the engagement of either of the other two clutches the shaft 6 merely turns freely through gear wheel 64 with the effect of the one-way drive. The rockers are influenced by pneumatically operated tappets under the control of valves electrically operated from the pattern drum of the machine.
Patent GB-177824-A (GB)
Title: Improvements in and relating to apparatus for superheating the working steam of steam-power plants
IPC: F22G3/00
Filed: 1920-10-12
Abstract: 177,824. Schmidt. W. Oct. 12, 1920. Superheating by steam; controlling superheat. -In apparatus for superheating steam for power plants bv means of steam generated in a separate boiler, the heating steam may pass at excessive pressure or temperatures through a heatexchanger situated, say, in the water space of the main boiler, the condensate from the exchanger returning to the separate boiler. Heating steam generated in a boiler consisting of tubes 3, Figs. 1 and 2, connected to upper and lower drums 1, 2., and arranged at the back of the combustion chamber of a marine boiler passes through a manually operated valve 18 into coils 21 in the main boiler. Condensate returns through a pipe 22 connected to the lower drum. When the valve 18 is closed, the steam flows through a pipe 23 to the superheater. A safetyvalve 25 on the heating-steam pipe discharges into the steam space of the main boiler. The generator of heating steam may be so built into the combustion chamber of a water-tube boiler as to subdivide the chamber. The manually operated valve 18 may be replaced by a valve, Fig. 8, opened by the pressure of the heating steam acting against the compression of a spring 35. The tubular valve member 30 slides in a seating 29 having two rows of ports 31. The heat-exchanger may be placed in a feed-water heater or in a heat-storage vessel.
Patent GB-616973-A (GB)
Title: Method of and means for manufacturing dry rectifiers
IPC: H01L21/14
Filed: 1945-10-31
Abstract: 616,973. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. Oct. 31, 1945, No. 28904. Convention date, Dec. 26, 1944. [Class 37] Dry rectifiers are electro-formed by applying a voltage considerably higher than the working voltage through a series resistance 2 to a plurality of parallel - connected rectifiers 1. The voltage may be A.C. or D.C. of such polarity as to load the rectifiers in the high-resistance direction.
Patent GB-267844-A (GB)
Title: Improvements in air compressor unloaders
IPC: F04B49/16
Filed: 1926-11-16
Abstract: 267,844. Ingersoll-Rand Co., (Assignees of Longacre, F. van D.). June 18, 1926, [Convention date]. Regulating compression.-The cylinders of a compound compressor are unloaded separately, the first stage cylinder being unloaded by means responsive to rise in the receiver pressure and the other cylinders by means dependent upon fall in the intercooler pressures, the unloading of the higher pressure cylinders being prevented until the first stage unloader has operated. Fig. 1 shows a three stage compressor with intercoolers G, H and a receiver O, each cylinder being regulated by provision of clearance spaces P controlled by valves Q, which are normally closed by fluid pressure and may be opened by springs when this fluid is released automatically on the cooler or receiver pressure attaining certain values. Each compressor has its own unloader A<1>, B<1>, C<1>, which unloads it in steps. The unloader A' is actuated by the receiver pressure conveyed through a pipe q, and successively opens the pipes 1 - - 4 to atmosphere, unloading the low-pressure cylinder step by step. The pipe 1 is connected through a pipe 22 with one end of a cylinder 13 in which a valve controls ports through which a branch from the pipe q conveys receiver fluid to the unloader. Pressure in the pipes 1, 22 holds the valve in position to close the ports; a spring 19 returns the valve when the pipes are opened to atmosphere. The unloader A<1>. Fig. 2, comprises a diaphragm V open to receiver pressure through a pipe S and operating a valve X which opens pipes 5, 9 either to receiver pressure from the pipe q or to atmosphere, and thus shifts the valves Y carrying shoes j, which in one position open the pipes 1 - - 4 to atmosphere through ports p and in the other position open them to receiver pressure supplied through the passage a. The pipes 1 - - 4 are opened successively to atmosphere, beginning with the lowest. The unloaders B<1>, C<1> are similarly constructed, but their valves X are operated by fall of cooler pressure supplied through pipes b, c and normally supplied to their pipes 1 - - 4. The passages 5. 9 through which the receiver pressure shifts the valves Y are arranged so that the pipes 1 - - 4 open to atmosphere successively from the top. Since receiver pressure is cut off from the regulator B<1> until the pipe 1 of regulator A<1> is opened to atmosphere the regulator B' only comes into action when the regulator A' is partly unloaded. The pipe 1 of regulator B<1> similarly controls a change valve 13 to close regulator C<1> to receiver pressure until regulator B<1> has made its initial step.
Patent GB-629210-A (GB)
Title: Improvements in electrical plug and socket connectors
IPC: H01J19/66
Filed: 1947-10-30
Abstract: 629,210. Two-part couplings holders for discharge tubes. McMURDO INSTRUMENT CO., Ltd., and HARRISON, A. Oct. 30, 1947, No. 28994. [Class 38 (i)] In a socket for a thermionic valve or other plug member of the type comprising a metal shell 1 enclosing an insulating contact-carrying body 10 and receiving the valve base or plug member, the shell has a slot 2 opening into the free edge thereof allowing free passage of a hemispherical projecting contact-member on the valve base &c., the slot narrowing to a constriction 5 formed by tongues 8, 9 through which the projection passes into an opening where it is retained by the tongues. The shell carries mounting lugs 14 for the socket. The body 10 in the embodiment shown, has a central bore containing a metal tube 15 with inwardly-pressed tongues 17 for contacting a valve spigot, socket contacts 19 comprising two parallel curved arms 21 with a downwardlyextending soldering tag 20 being loosely housed in bores 18 surrounding the central bore. The low portions of said bores are constricted to pass only the soldering tags, projections 24 then being pressed therefrom to engage the underside of the body and prevent their withdrawal.
Patent GB-162016-A (GB)
Title: Improvements in or connected with feed-regulators for steam generators
IPC: F22D5/16
Filed: 1919-11-21
Abstract: 162,016. Nick, E. W. Nov. 21, 1918. Feed-water, supplying and controlling.-A feedwater regulator of the type operated by the evaporation of a liquid in a power producer, comprises the combination of an external power producer having a partition under which the water level, varies with the level in the boiler, with regulating means so that the level in the, boiler will vary inversely as the load, as described in Specification 17777/14. The power producer 65, connected to the steam and water spare of the boiler 30, is provided with an inclined partition 66 tn isolate the chamber 32 which contains the volatile liquid and is provided with a heat-radiating coil 70 and a connection 73 to the diaphragm chamber 75 to allow the pressure generated to operate the feed valve 67, which is preferably constructed as shown in Fig. 5, against the action of the adjustable spring 77. In a modification, a corrugated expansion chamber is fitted to an external chamber operatively connected with the boiler and provided with heat-radiating fins, the expan, sion chamber operating the feed-valve through an adjustable lever and bell-crank arrangement. In a further modification, the expansion chamber is replaced by a tube containing volatile liquid and fitted with an open-ended concentric tube connected to a valve controller comprising an elastic chamber surrounded by a spiral spring, the longitudinal expansion of the chamber operating the valve through a lever arrangement.
Patent GB-1322422-A (GB)
Title: Head-up display apparatus
Inventor: KIRSCHNER ROBERT K
IPC: G02B27/00
Filed: 1971-06-21
Abstract: 1322422 Head-up displays SUNDSTRAND DATA CONTROL Inc 21 June 1971 [22 June 1970] 28997/71 Heading G2J A head-up display comprises an ellipsoidal mirror 24 and means 26 for generating an image for the mirror in the focal plane of the mirror. The reflective surface is part of a surface of revolution of an ellipse about one of its axes, preferably its major axis, the reflective surface being taken substantially from one hemiellipsoid and adjacent but offset from the axis of revolution, which axis constitutes the optical axis of the reflective surface. As shown, the ellipsoidal mirror is partially reflective. However, the mirror may be fully reflective, and a partially reflective plane mirror arranged to . reflect the image from the ellipsoidal mirror, Fig.17 (not shown). The device is applied to an aircraft, and images 40, 42, Fig.2, are produced to represent the aircraft pitch angle and the projected flight path. Image 40 is produced by a movable tape carrying translucent indicia held in front of a light source, the front of which is so shaped that the tape lies in the (curved) focal plane. The image 42 is produced by a movable illuminated bar which is also curved to lie in the focal plane. The illumination may be controlled relative to ambient light to give a desired contrast. The mirror 24 may be pivoted to lie against base 22 when not in use, the illumination being switched off when it is in the stowed position.
Patent GB-1185806-A (GB)
Title: Control Device for Timepiece Mechanism
IPC: G04B37/10
Filed: 1968-06-19
Abstract: 1,185,806. Clocks and watches. BONINCHI S.A. June 19, 1968 [June 28, 1967], No.29136/68. Heading G3T. A winding and setting device for a timepiece comprises a rod 6, having a screwthread 7 for attaching it to a stem (not shown), a winding and setting button 2 having secured therein a tubular fitting 3 slidable on the rod 6, an annular spring 11 engaging between a head 10 secured to the rod 6 and an end of the sleeve 3, and resilient packing members 15, 16 disposed between the rod 6 and a tube 13 secured to the timepiece casing. Thus when the button 2 is in its inner winding position the packing members 15, 16 are compressed and the winding stem is acted upon by the annular spring 11 and the resilient members 15, 16 in opposition. A metallic ring 17 is interposed between the members 15, 16.
Patent GB-1524776-A (GB)
Title: Integrated circuit package
IPC: H01L21/52
Filed: 1977-07-12
Abstract: 1524776 Integrated circuit package AMP Inc 12 July 1977 [30 July 1976] 29140/77 Heading H1K An integrated circuit chip 10 is connected to leads 15 extending through an insulating frame 16, the cavity around the chip 10 is filled with a sealing gel 19 and a closure member 18 is press-fitted into frictional engagement with the frame 16 to compress the gel 19 and seal the cavity. Both openings of the cavity may be thus closed. The package may accommodate two chips.
Patent GB-1400258-A (GB)
Title: Glutaraldehyde sporicidal compsitions
IPC: C11D3/48
Filed: 1972-06-21
Abstract: 1400258 Sporicidal application of glutaraldehyde WEST LABORATORIES INC 21 June 1972 [28 June 1971] 29143/72 Heading A5E A process for killing of bacterial spores on an inanimate object, comprises treating same with an effective amount of a sporicidal composition comprising at least 0.5 weight percent of glutaraldehyde, at least 0.1 weight percent of a detergent selected from nonionic, anionic and ampholytic detergents, and a solvent, preferably water. Optionally a monoaldehyde such as formaldehyde acetaldehyde, propionaldehyde or butyraldehyde may be included in the composition. Prior to use the pH of the composition preferably is raised to from 6.5 to 7.4 The invention also comprises sporicidal compositions comprising glutaraldehyde, solvent and formaldehyde and/or non-ionic detergent.
Patent GB-536133-A (GB)
Title: Improvements in or relating to the manufacture of reinforced rubber structures
IPC: B60C9/00
Filed: 1939-11-01
Abstract: 536,133. Fibre or like reinforcements for tyres, &c., DU PONT DE MEMOURS & CO., E. I. Nov. 1, 1939, No. 29163. Convention date. Nov. 1, 1938. Drawings to Specification. [Class 70]. Indiarubber pneumatic tyres, belting, hose, &c. are reinforced by single filaments or by multifilament structures of low twist composed of an oriented synthetic linear polyamide, such as polyhexamethylene adipamide. The filament structure may be given a twist not exceeding four turns to the inch and may have am elongation of between 15 and 50 per cent. Specification 461.236. [Group IV]. and U.S.A. Specifications 2,071,250 and 2,130,948 are referred to.
Patent GB-797942-A (GB)
Title: Improvements in or relating to multiple magnetic reproducing heads for films having multiple magnetic sound tracks
IPC: G11B5/29
Filed: 1954-10-11
Abstract: 797,942. Magnetic recording reproducing heads. SIEMENS & HALSKE AKT.-GES. Oct. 11, 1954 [Oct. 9, 1953], No. 29167/54. Class 40 (2). A multiple magnetic signal reproducing head for film having multiple magnetic sound tracks comprises a plurality of individual heads each having at least one non-magnetic gap and being formed from two half-heads each comprising a stirrup-shaped core 1 of laminated sheet metal or of ferrite; respective half-heads of each head are secured in two symmetrical casing components or half-blocks 5, 5<SP>1</SP> which are joined together in the plane 12 of the gap to form a unit from which project the gap defining poles of the cores. In the embodiment shown the half-heads are moulded into respective half-blocks 5, 51 of shrink-resistant electrically-insulating moulding material but in another embodiment, not shown, they are secured by moulding or adhesives in moulded or milled guide slots in respective pressure or die-cast casing components of synthetic resin, and in both embodiments hollow spaces 6 possibly subdivided by cross-pieces 7 may be provided to avoid shrinkage. Windings 2 are mounted on the cores and may be connected to connection tabs 11. Adjacent pairs of half-heads may be embraced by E-section screening means 8, 9, Fig. 3, of high permeability sheet material and having a tab 10 for connection to earth. Between each adjacent pair of half-heads there also may be provided a screening plate 13, Fig. 4, which extends into the area of the gaps and may be part of or connected to the screening means 8, 9. To assemble, the surfaces of the ends 3, 4 of the cores are ground smooth, thin copper-bronze foil is inserted between one or both ends 3, 4 of each head core, the two half-blocks are joined together by adhesives or screws, not shown, and the projecting poles are ground to be all of the same height. The cores may be earthed by a metal foil, not shown, inserted between each core 1 and winding 2. The assembled block as shown in Fig. 4 is secured by moulding material in an enclosing metal cup, not shown, having a, securing flange and within which some soldering tabs 10, 11 may be connected together, the remainder projecting therefrom. There may be a further screen placed around the block and within the cup such screen having an electrically insulating goil on its outer surface. Reference has been directed by the Comptroller to Specification 721,755.
Patent GB-654914-A (GB)
Title: Rotary hammer mill
Inventor: JOLLY ARTHUR ARNOLD EDWIN
IPC: B02C13/288
Filed: 1948-11-10
Abstract: 654,914. Hammer mills. BENTALL & CO., Ltd., E. H. Nov. 10, 1948, No. 29267. [Class 59] In a hammer mill of the kind in which ground material is removed under suction through a screen enclosing the pulverizing chamber, the particles, on issuing into a collecting chamber, are subjected to the action of a secondary air stream flowing in a direction around the exterior of the screen. In the mill shown, material fed through the hopper 13 is charged to the interior of the pulverizing chamber through a central aperture in the cover plate 10, ground material being drawn, by the action of the fan F, through the screen 1 surrounding the rotor, to the annular collecting chamber 1a and thence through a duct in the bottom of the casing B to a discharge pipe 9. The primary supply of air enters the mill through the channel 14, the secondary air flow through the chamber 1a entering through a lower hole 17 and slots 20 and holes 21, 21<SP>1</SP>, formed in the outer wall of the chamber 1a at points substantially diametrically opposite the discharge outlet.
Patent GB-1283008-A (GB)
Title: Improvements in and relating to mixers
Inventor: BORNEMANN JOACHIM
IPC: B01F15/00
Filed: 1971-06-22
Abstract: 1283008 Mixing apparatus RHEINSTAHL AG 22 June 1971 29272/71 Heading B1C Mixing apparatus primarily for plastics materials comprises a double-walled cylindrical vessel 1 with a lid 3, a rotatable mixing tool 2 in the bottom of the vessel extending substantially to the cylindrical wall, and a double walled coaxial inverted frusto-conical draft tube 4 which is vertically adjustable on a plurality of vertical perforated lugs 6 which are rigidly fixed to a removable ring 5 inserted between the vessel wall and the lid. The draft tube double wall has internal baffles 7 to provide a tortuous path for the heat exchange medium. The sides of the draft tube preferably make an angle of 40-60 to the horizontal and the diameter of its smaller opening half that of the vessel. Circulation is upwards along the walls of the vessel and downwards within the draft tube.
Patent GB-683070-A (GB)
Title: Improvements relating to hospital beds
Inventor: CROSS REGINALD JACK
IPC: A61G7/05
Filed: 1949-11-16
Abstract: 683,070. Invalids' beds; furniture details. ESSEX AERO, Ltd., CROSS, R. J., and HUGHES, F. G. Nov. 13, 1950 [Nov. 16, 1949], No. 29319/49. Classes 52(i) and 52(ii) [Also in Groups XXIV and XXX] A hospital bed comprises a patientsupporting platform comprising spaced interconnected members 10a, 10b having a fixed panel 11 and hinged panels 16, 17, 18, a head board 12, as described in Specification 683,071, a chassis comprising spaced interconnected arched members 23, 24 as described in Specification 683,073, castoring wheeled undercarriage 27, 28, 31 arranged to lift the chassis for bodily movement as described in Specification 683,072, screw jacks 35, 37 and 39, 43 and 45, 47, (see Group XXX), for manipulating the hinged panels 16, 17, 18 arranged as described in Specification 683,074, a jack 100 for elevating the patient-supporting platform constructed as described in Specification 683,073, (see Group XXX), means for operating hydraulic jacks and the arrangement and construction of the hydraulic system employed as described in Specification 683,072, (see Group XXIX). Specifications 677,271, [Group X], and 682,453, [Group XXX], also are referred to.
Patent GB-459397-A (GB)
Title: Improvements in electric contact-making switches
IPC: H01H15/10
Filed: 1935-10-24
Abstract: 459,397. Locking switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ROSE, W. R., c/o General Electric Co., Ltd., Stoke, Coventry. Oct. 24, 1935, No. 29355. [Class 38 (v)] A switch of the kind in which a cylindrical cam 3 is rotatable by a handle 16 to move balls 2 outwards to operate contact springs (not shown), has locking means which limit the rotation of the cam 3 to 90‹ until a key 6 is inserted when a movement of a further 90‹ is possible. Without the key 6 the movement is limited by the engagement of a pin 8 on cam 3 with a 90‹ slot 10 on a collar 4 which is locked to the body 1 by a bolt 9 controlled by a spring 7. Insertion of the key 6 acts on a pin 12 to move bolt 9 outwards as in Fig. 3, and the collar 4 is locked to the cam 3 which can then rotate a further 90‹ due to a pin 15 on the body engaging a 90‹ slot 14 on the collar 4. Specification 14816/13, [Class 38 (v)], is referred to.