baber/WOPTO huggingface dataset:
Patent GB-1278701-A (GB)
Title: New polyurethans and process for the manufacture of polyurethan foamed materials
IPC: C08G18/50
Filed: 1969-07-29
Abstract: 1278701 Polyurethane foams SCHERING AG 29 July 1969 [29 July 1968] 38033/69 Addition to 1217091 Headings C3C and C3R [Also in Division C2] Polyurethane foams are prepared by reacting in the presence of a foaming agent a polyisocyanate and an alkanolamide which has been obtained by at least partial alkoxylation of a condensation product of a polymerized unsaturated fatty acid or an ester thereof with a monoalkanolamine. Other conventional additives may be added to the reaction mixture, e.g. cross-linking agents, emulsifiers, foam stabilizers, catalysts, fillers, colouring agents, antioxidants, fungicides and fire-inhibiting agents. In examples the monopropoxylated bis-ethanolamide of dimeric tall oil fatty acid is reacted with crude 4,41-diisocyanato-diphenylmethane in the presence of trichloro-monofluoromethane as foaming agent.
Patent GB-1466247-A (GB)
Title: Gas heater
IPC: F23N5/06
Filed: 1974-07-31
Abstract: 1466247 Valves T I DOMESTIC APPLIANCES Ltd 31 July 1974 [10 Aug 1973] 38046/73 Heading F2V [Also in Division F4] A flueless burner 10 for a water heater is shutoff after a predetermined interval necessary to raise the temperature of a heat sink 9 to a value high enough to close a thermostatically operated pilot valve 2. The pilot flame 5 is thus extinguished allowing a bimetallic element 6 to cool and close the valve supplying the main burner. The pilot valve has a spring-loaded plunger 15 connected by a leaf-spring 14 to a diaphragm 13 communicating through a capillary tube 7 with a mercury-filled bulb 8. A block of cast iron or mild steel may be used for the sink 9.
Patent GB-915678-A (GB)
Title: Improvements in or relating to method of lubrication
IPC: C10M105/38
Filed: 1959-11-10
Abstract: A lubricant for the bearings and other points of wear of a gas turbine engine comprises a dipentaerythritol ester of a C5-C10 alkanoic acid or of a mixture of C2-C12 alkanoic acids whose proportions are such that the acids contain on the average 5-10 carbon atoms per molecule. Specific esters mentioned are dipentaerythritol hexaheptanoate, hexavolerate and hexacaproate, and also mixtures of dipentaerythritol esters derived from such acids as acetic, propionic, butyric, caproic, caprylic, heptanoic and pelargonic acids.  The lubricant may contain additional ingredients such as antioxidants (e.g. phenothiazine), pour point depressants, detergents and viscosity index improvers.ALSO:A lubricant for gas turbine engines (see Group III) comprises a dipentaerythritol ester of a C5-C10 alkanoic acid or of a mixture of C2-C12 alkanoic acids whose proportions are such that the acids contain on the average 5-10 carbon atoms per molecule.  Specific esters mentioned are dipentaerythritol hexaheptanoate, hexavalerate and hexacaproate and also mixtures of dipentaerythritol esters derived from such acids as acetic, propionic, butyric, caproic, caprylic, heptanoic and pelargonic acids.  The esters may be blended with additional ingredients such as antioxidants (e.g. phenothiazine).  In an example of the preparation of suitable esters, dipentaerythritol is refluxed with a mixture of propionic, caprylic and caproic acids in the presence of toluene and carbon black, additional propionic acid being introduced during the refluxing to compensate for that which is lost. The reflux condenser is then removed and the temperature increased to 237 DEG C.  Excess acids are stripped off, using a nitrogen sponge at a pressure of 2.3 mm. Hg. and a maximum temperature of 215 DEG C. The mixture, cooled to 160 DEG C., is then slurried with lime and filtered through diatomaceous earth.
Patent GB-989340-A (GB)
Title: Improvements relating to automatic telecommunications exchanges
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H04Q3/42
Filed: 1960-07-18
Abstract: 989,340. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 3, 1961 [July 18, 1960], No. 38390/62. Divided out of 989,336. Heading H4K In an exchange comprising a plurality of PBX groups when a PBX directory number is dialled a marking pertaining to the PBX group in question is applied to a group of gates, one for each line of the group, which are primed in accordance with the busy or idle condition of the associated line, the groups of gates being connected in common to a one-only selector circuit which selects a free line from the PBX group to which the group of gates relates. As shown, Fig. 1, the identity of the PBX group is received in decimal form over four groups of ten terminals, to enable a "code point " PBXe which enables two transistors Tr505, Tr504. A signal on lead scf9 pulses gates GS/PBX of which there is one for each line of the PBX group, a gate being open if the corresponding line is free (k1 open). Thus leads IL/PBX receive pulses if they correspond to free lines. In the common selection circuit, Fig. 2, the positive pulses set bi-stable circuits PSXe1 ... PSXe5 whose outputs are fed to gates G/PBX1 ... G/PBX5 so arranged that only the lowest numbered gate corresponding to the first free line in the group cuts off its transistor such as Tr700, whereby Tr705 becomes conducting to apply an earth potential over that lead OL/PBX corresponding to the first free line. If there are more than 5 PBX lines in a group a gate G/PBXN is arranged to respond to busy condition of all 5 lines in the group to cause an enabling potential to be passed over lead il/PBX to a similar circuit for a subsequent group of 5-lines and so on. The groups of five lines and their enabling leads may be arranged cyclically, an initial enabling condition on one of the leads being provided from a counter RTBC which is stepped once every operation. This enables a more even spread of traffic over the lines of a group. Coincidence of an output from the counter and a gate such as G/PBXN can be used to disable a transistor such as Tr715 to produce an "all outlets busy condition." When the selected free marking is passed over a lead OL/PBX it is passed via gate Rf100, Rf50n (say) enabled by Tr504 to cut off transistor Tr503n which marks negatively from terminals ts/pbxn which are cross connected to appropriate terminals ts in one of four groups of ten indicate of the location of the selected PBX line in the exchange. Fig. 1 also illustrates a " code point " Cxe for use in effecting a " changed-number " translation. Specification 989,338 is referred to.
Patent GB-1477147-A (GB)
Title: Maps
IPC: G09B29/00
Filed: 1974-07-23
Abstract: 1477147 Maps J G P BAKER 23 July 1974 [15 Aug 1973] 38573/73 Heading G5G A map drawn on Mercator's Projection for any region lying between the Equator and a given latitude (L) and drawn, for any region lying at a greater latitude, to a scale the value (S) of which varies with the latitude (A) in such a way that the absolute value of dS/dA is never greater than ds/dA at the given latitude, the latter portion of the map being interrupted to form caps, each bounded longitudinally by lines drawn from the given latitude to the nearer pole. The scale may be chosen so that at L + B degrees it is the same as that at L - B degrees on the Mercator Projection. Given exemplary values for L in the northern hemisphere are 70, 66¢, 65 and 60 degrees N the numbers of northern caps being 7 to 3, and a different value of L for the southern hemisphere may be 70, 60, 45 or 40 degrees with 6 to 3 caps, The map edge may be 170 or 15 degrees W. A map scale is shown on the right of the map. By choosing the Antarctic region to be circular, the map may be produced as an opentopped cylinder (Fig. 5 not shown) the map being on the outside, or, if the material is transparent, on the inside. A lid could be fitted. Alternatively, the circular surface may be at an angle to the main surface.
Patent GB-926468-A (GB)
Title: Glue applying device for paper tube winding machines
Filed: 1961-10-27
Abstract: <PICT:0926468/IV(a)/1> Glue-applying apparatus for tube winding machines is characterized by a glue nozzle adapted to the length of the tube to be wound, the hollow inner space of the nozzle being connected to the glue supply and via this to a closed container and the nozzle having on the tube side a longitudinal slot for the outlet of the glue, and in that the nozzle is adjustable in position tangentially of the tube so that the gap between the periphery of the tube and the nozzle slot is adjustable, the nozzle being mounted in a holder which is movable away from the tube being wound.  In the arrangement shown glue nozzle 1 is closed apart from a longitudinal narrow slot 1a positioned close to the tube 14 being wound.  Glue is supplied to the nozzle under pressure via tubes 2, 4 from a closed container.  The position of the tube is adjustable relatively to a radius of tube 14 by screw means 8 and lock means 9.  The nozzle is held in a holder 3 pivotally mounted at 3a and under the control of a cam 6.  Presser means 5 presses the paper layers 11 on to one another as the tube is being wound.
Patent GB-361671-A (GB)
Title: An improved automatic life safe-guard for automobiles
IPC: B60R21/34
Filed: 1930-12-24
Abstract: 361,671. Vehicle life-guards. McCAIG, A. B., 735, Shettleston Road, Glasgow. Dec. 24, 1930, No. 38836. [Class 103 (ii).] A manually-operable device for releasing the plungers described in Specification 340,403 is provided in addition to the automatic releasing-means and comprises a pulley 15 wrapped by a cord or wire 17 operatively connected to the control pawl holding the guard in the retracted position. A ratchet disc 18 engaged by a second pawl 19 to prevent retrograde movement rotates with the pulley, the pawl 19 being disengaged manually from the disc 18 to permit the plungers to be reset.
Patent GB-361673-A (GB)
Title: Improvements in and relating to overall chains or girdles for the pneumatic tyres ofroad vehicle wheels
IPC: B60C27/20
Filed: 1930-12-24
Abstract: 361,673. Tread chains ; endless tracks. KENNEDY, D. S., Harewood Forest Works, Longparish, Hampshire. Dec. 24, 1930, Nos. 38877/30 and 16073/31. [Class 144 (ii).] The shoes of tread chains for use on single or tandem wheels are each formed from one piece of metal with a transverse corrugation b extending across the main tread portion a and down the side walls a<1> of the shoe. The corrugations, especially on the portion a, may be formed with one or more apertures b<1>, preferably with flanged edges b<2> to increase the grip between the tyre and the shoes. Studs or strakes c may be fitted on the part a alongside the corrugation b. In the form shown in Fig. 1, the sides a<1> of the shoes are provided with blocks a<O> on which the connecting-links are pivoted. In the modification shown in Fig. 8, the connecting- links are pivoted to the bifurcated ends of channelplates g recessed into the shoes. Fig. 5 shows a further modification in which the sides of the shoe are formed of channel section to receive the connecting-links. Specifications 325,135, [Class 144 (ii), Wheel tyres, Pneumatic &c.], and 354,865, [Group XXXI], are referred to.
Patent GB-1452418-A (GB)
Title: Seal puncturing device for container
IPC: A61J3/00
Filed: 1974-09-05
Abstract: 1452418 Puncturing ampoules R R LARSON 5 Sept 1974 [7 May 1974] 38879/74 Heading B8C [Also in Division A5] A device to aid the removal of liquid from a container having a puncturable seal comprises a cap portion 22 having a cylindrical mounting portion 30 inside which a puncturing needle structure 34 is slidable, the mounting portion 30 has abutments 32 for abutment against shoulders 50 and 52 on the needle structure and the central portion 48 of the needle structure 34 is outwardly tapered between shoulders 50 and 52 to resist movement of the needle structure toward the seal until the shoulder 52 is pushed past the abutments 32 when the resistance is removed and the force exerted by the finger causes the pointed end 40 of the needle structure to pierce the seal. The needle structure is formed within tapering bore 42 to wedgingly seat a hypodermic needle therein and a slightly tapered counter bore 42 to receive the nipple of a hypodermic syringe barrel. The needle structure is made of slightly deformable plastics material to aid retention of the hypodermic syringe nipple or needle. The device may be supplied connected to an ampoule, the whole assembly being sealed in an outer wrap 54, and in use, the ampoule may be punctured by the device before removal of outer wrap 54.
Patent GB-339801-A (GB)
Title: Mechanism for regulating the feed in roller grinding mills
IPC: B02C4/28
Filed: 1929-12-19
Abstract: 339,801. Moog, O. Dec 19, 1929. Variable-speed friction gearing is controlled hydraulically according to the position of a sliding valve rod 18 which moves a friction roller 7 between and in contact with driving and driven discs 5, 6, the displacement of the roller 7 being effected in accordance with the amount of grist flowing to a mill. A pulley 1 drives the disc 5 and the roller 7 transmits the motion to disc 6 and thence to driven wheel 4. The roller 7 lies intermediate the ends of differential pistons 8, 9 perforated by a bore 16 which is opened or closed by the movement of control rod 18. The axles 2, 3 of the discs 5, 6 are provided with pistons 14, 15 which are acted upon by oil pressure to force the discs 5, 6 into contact with the friction roller 7. A gear pump 10 circulates oil behind the piston 14 and through pipe 20 to top of piston 9 and the rear of piston 3. The oil from the top of piston 9 flows through the bore 16 to the underside of piston 8 and escapes back to the reservoir through a restricted orifice 17. When the rod 18 descends and closes the bore 16, the piston 9 is depressed and the speed raised. When the rod 18 rises beyond a stop 19, the differential piston follows up this movement until the piston 9 abuts the stop 19. The oil pressure then escapes through bore 16 and orifice 17 and a piston 22 ascends to disengage the driven mechanism.
Patent GB-935698-A (GB)
Title: Improvements in colour photographic development
IPC: G03C7/34
Filed: 1959-11-17
Abstract: The following compounds are prepared by reacting phenyl 1-hydroxy-2-naphthoate, phenyl 1-hydroxy-2-benzoate or phenyl 4-chloro-1-hydroxy-2-naphthoate as appropriate with 2-hydrazinobenzthiazole, 2-hydrazinoquinoline or 2-hydrazinopyridine as appropriate:  <FORM:0935698/IV(a)/1> The following are prepared by sulphonating the corresponding unsulphonated compounds: <FORM:0935698/IV(a)/2> The compounds are all used as colour coupling agents in colour photography (see Group XX).
Patent GB-1237083-A (GB)
Title: Improvements in or relating to submarine cables
Inventor: CLARKE ERIC FIFIELD STUART
IPC: H01B11/18
Filed: 1967-08-24
Abstract: 1,237,083. Cable. POST OFFICE. 22 Nov., 1968 [24 Aug., 1967], No. 38998/67. Heading H1A. A coaxial submarine cable comprises a solid or stranded core 1 e.g. of steel to provide the cable's tensile strength, an inner conductor 2 e.g. in the form of a wrapped longitudinal copper tape with a welded seam, insulating material 3 about conductor 2 and an outer conductor which consists of elongate copper members e.g. tapes 4 which overlap wholly or partly adjacent members. A non-metallic covering 5 e.g. of polythene is provided about the outer conductor. The outer conductor may consist of longitudinally arranged copper tapes 4 which overlap or it may consist of a single copper tape wrapped longitudinally about the insulation 3 and covered by a helically wrapped copper tape or wire.
Patent GB-945697-A (GB)
Title: Improvements in and relating to the forming of a non-woven fibre web
Inventor: ATKINS HAROLD JEFFREY
IPC: D04H1/72
Filed: 1961-11-01
Abstract: In order to produce more even webs, the method and apparatus set out in Specification 632,226 are used successively.  Two units as described in the prior Specification are preferably employed in succession but any number of units may be provided in line. Specifications 708,803, 708,839 and 714,283 also are referred to.
Patent GB-1181300-A (GB)
Title: Glue Table
IPC: B05C5/02
Filed: 1967-08-24
Abstract: 1,181,300. Coating-apparatus. BELOIT EASTERN CORP. 24 Aug., 1967 [19 Sept., 1966], No. 39109/67. Heading B2L. [Also in Division B8] A glue table for preparing headers which are to be glued to the end of a wrapped roll comprises at least one turntable 13 on which the headers to be glued are placed and which is driven by a selectively engagable drive wheel 26 the operation of which allows glue to flow from a nozzle 27 on to the uppermost header. The drive means and flow from the nozzle are stopped after one complete revolution of the turntable. A vacuum transfer means 32 lifts the glued header from the top of the stack and places it on a horizontal platen 28. After the header has been placed on the platen it is rotated to lie in a vertical plane and the piston rod is extended so as to place the prepared header at the end of the roll 33. A brake shoe is provided to stop rotation of the turntable when the drive is disengaged.
Patent GB-998021-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F1/42
Filed: 1961-11-01
Abstract: 998,021. Tubular heat exchange elements. P. LEGRAND. Nov. 1, 1961 [Nov. 23, 1960; June 7, 1961], No. 39132/61. Heading F4S. A heat exchanger comprises a nest of parallel tubes 1, 2, forming a regular mesh pattern, having formed on their outer surfaces transverse grooves or splines or threads; and spiral-forming or twisted longitudinal elements 3, 4, 5 arranged in the meshes such that the elements disposed in two adjacent meshes have opposite spirals. In one embodiment the elements consist of flat strips (Fig.. 5 and 6, not shown) having on both or either face deflector forming projections 27 obtained by a punching operation, the strips then being twisted. In an alternative form the elements consist of three twisted flat strips interfitted in each other by means of transverse notches (Fig. 9, not shown). The three twisted flat strips are preferably of the same pitch and parallel to each other and rigid elements formed by said strips may be used as longitudinal tierods, stiffeners or vibrating-damping elements. The nest tubes may have a longitudinal groove extending along their outer edge in order to scavenge fluid from the grooves or spines &c. In a further form, the elements may consist of cylindrical bodies on which a twisted tape or wire or metal braid is coil wound. The cylindrical bodies may consist of tubes similar to the nest tubes, the fluid flowing through the next tubes also flowing through the cylinder bodies. In this form the twisted tape &c. contacts both the walls of the adjacent nest tubes and also the walls of the tape carrying tubes of the adjacent meshes. With this arrangement the nest tubes may be arranged into groups of seven, Figs. 14 and 15, in which the tubes are double-walled, the inner tubes 111a, 110a, 117a having constricted or narrow ends to constitute suitable streamlined closing caps 111b, 110b, 117b. The annular space thus formed is of substantially the same crosssectional area as the bent constricted portion welded to the seventh or central tube. The central tube having plain rectilinear and non- constricted end portions. The annular spaces may have twisted strips in them. The cylindrical bodies disposed in the meshes may have any polygonal cross-section, e.g. triangular (see Fig. 16, not shown).
Patent GB-1113608-A (GB)
Title: Sealed coffin
IPC: A61G17/00
Filed: 1965-09-14
Abstract: A sealed coffin comprises an automatic gas escape valve and an internal capsule operable from the exterior and being or containing a source of inert or antiseptic gas having the effect of inhibiting decomposition processes.
Patent GB-839238-A (GB)
Title: Reaction products of bis(2:3-epoxycyclopentyl) ether with polycarboxylic acid anhydrides
IPC: C08G59/42
Filed: 1957-12-18
Abstract: A resin is made by reacting bis-(2 : 3-epoxycyclopentyl) ether with a polycarboxylic acid anhydride.  Reaction is effected by heating to 50-250 DEG  C., preferably in the presence of an acidic or basic catalyst, e.g. a mineral acid, a sulphonic acid, a metal halide Lewis acid or a complex thereof, an alkali metal hydroxide or an amine.  In order to make the resin more flexible, the reaction mixture may include a polycarboxylic acid which may be in the form of a polyester having two or more free carboxyl groups and obtained by polyesterifying excess of a polycarboxylic acid or anhydride with a polyhydric alcohol.  Many polycarboxylic acids, polycarboxylic anhydrides and polyhydric alcohols are specified. The resins are suitable for the manufacture of buttons, combs, brush handles, structural parts for instrument cabinets, hot fluid carrying conduits, high temperature tools and dies, and minor structural parts and high temperature electrical insulation for aircraft.  Examples describe the making of resins by heating bis - (2 : 3 - epoxycyclopentyl) ether with (1)-(16) and (21) phthalic anhydride; (17)-(20) maleic, polyadipic chlorendic or succinic anhydride; (22) phthalic anhydride and adipic acid. Specifications 839,239 and 839,240 are referred to.
Patent GB-863447-A (GB)
Title: Method of finishing nylon type tufts of brushes
IPC: A46D9/02
Filed: 1958-12-08
Abstract: 863,447. Brushes. MORTIMER, S. E., and USK PATENT PRODUCTS Ltd. Jan. 5, 1960 [Dec. 8, 1958], No. 39406 /58. Class 19. Tufts of thermoplastics monofilaments are, after the tufts have been inserted into a brush stock, shortened to the required length by the application to the free ends of the monofilaments of a heated blade. The crust formed by the molten material of the monofilaments is on hardening removed and the tufts subsequently combed. Another heated blade is then inserted between the filaments as often as is desired to shape the tufts and roughen the surfaces of the filaments thereof to give the required forms. Crust formed by solidfied plastics in this operation is then removed by combing to leave the bristle tufts of the required form.
Patent GB-892059-A (GB)
Title: Speed compensation in rolling mill gauge control system
IPC: B21B37/18
Filed: 1958-12-08
Abstract: 892,059. Automatic thickness control systems. CANADIAN WESTINGHOUSE CO. Ltd. Dec. 8, 1958 [Jan. 2, 1958], No. 39466/58. Class 38 (4). In apparatus for reducing the thickness of material passed, under longitudinal tension, between opposed members applying a transverse force, signals dependent on (a) the separation setting of the opposed members, (b) the force between the opposed members, and (c) the speed of travel of the material, are combined to control the separation setting and/or the longitudinal tension of the material. In a rolling mill, Fig. 1, material 6 passes back and forth between rolls 2, 3, the separation between which is adjustable by screw-down motors 12. Longitudinal tension is applied to the material by dynamo-electric machines 22, 23 one of which acts as a motor for reeling up while the other acts as a drag generator to brake the supply reel. A suitable tension is set manually by adjustment of a device 25 associated with controller 24 for the dynamoelectric machines. Electric signals are derived from (a) rolls 33 detecting the thickness of the material on the output side of the mill, (b) a position generator 15, operated by screwdown motor 12, detecting the separation setting of rolls 2, 3, (c) a strain gauge 13 detecting the force between rolls 2, 3, (d) a manual controller 27 determining the desired thickness of the material and (e) a potentiometer 28 driven with rheostat 17 setting the speed of motor 16 driving rolls 2, 3. Signals (a)-(d) together with speed signal (e) modified by a non-linear device 29 to suit the characteristics of the mill are combined in a unit 26 to control the tension applied by dynamo-electric machines 22, 23 and/or the setting of screw-down motor 12. The settings of manually-operated devices 31, 32 determine the magnitude of the control signal required to effect any correction and the greater magnitude of the control signal required to effect operation of the screw-down motors. The thickness of the material may alternatively be measured by a radiation gauge and the signal representative of the speed of the mill derived from a tachometer generator. Specification 892,058 is referred to.