baber/WOPTO huggingface dataset:
Patent GB-945797-A (GB)
Title: Improvements in or relating to the preparation of polyurethane type elastomers
IPC: C08G18/10
Filed: 1960-04-11
Abstract: A process for the preparation of a stable branched chain polyurethane elastomer comprises heating m moles of a polymeric dihydroxy compound with m+1 moles of an organic diisocyanate, m being between 1 and 10 inclusive, so as to form a linear polyurethane having terminal isocyanate groups, simultaneously or successively heating n +1 moles of the linear polyurethane with n moles of a bifunctional compound having a molecular weight below 250 and having two groups equally capable of reacting with the isocyanate groups, n being between 1 and 10 inclusive, so as to form with the bifunctional compound an unstable linear polyurethane having terminal isocyanate groups; allowing the unstable linear polyurethanes to ramify in order to form an unstable branched chain polyurethane elastomer having free isocyanate groups at substantially all its terminal positions, the ratio by weight of free isocyanate groups to the unstable branched chain polyurethane elastomer being in the range of from 0.3 to 2% inclusive; and mixing the unstable branched chain polyurethane elastomer with an amino alcohol having only one group of higher reactivity towards isocyanates than the hydroxy group which it contains, the proportion of amino alcohol used corresponding to the quantity of high reactive groups therein equivalent to the number of free isocyanate groups in the unstable branched chain polyurethane elastomer, so as to form a stable branched chain polyurethane elastomer the branched of which are terminated by hydroxyl groups. Specified polymeric dihydroxy compounds are polyesters, polyethers and polyesteramides. Specified bifunctional compounds are diols, diamines and dicarboxylic acids.  Specified amino alcohols are monoethanolamine, diethanolamine, methylaminoethanol, phenyl amino ethanol and 2-amino -2-methyl-propane-1:3-diol.  The elastomers may be vulcanised by heating with a polyisocyanate. In the examples, branched chain polyurethane elastomers are made from an ethylene-propylene mixed polyadipate, butane diol, 3:31-dimethyl diphenylene-4:41-diisocyanate and:  (I) and (V) ethanolamine; (II) diethanolamine; (III) N-methylethanolamine and (IV) N-phenyl ethanolamine; the products being vulcanised by heating with magnesia and 3:31-dimethyldiphenylene-4:41-diisocyanate and in examples (I) to (IV) cobalt naphthenate.
Patent GB-241120-A (GB)
Title: Improvements in and relating to pneumatic tyres
IPC: B60C15/028
Filed: 1925-05-18
Abstract: 241,120. Michelin et Cie. March 5, 1925, [Convention date]. Tyre attachments to rims.-A security band is composed of inextensible sections 1 and elastic sections 4 and is normally of larger diameter than the bed of the rim, being contracted by the pressure of the inflated air tube to secure the tyre beads and being maintained in its operative position by positive holding devices. The elastic sections 4 may consist of rubber or springs, and the holding devices may be set-screws 5 engaging the inextensible sections or a continuous flexible cable or band the ends of which are anchored to the inner periphery of the rim.
Patent GB-452058-A (GB)
Title: Improvements relating to fusible electric cutouts
IPC: H01H85/20
Filed: 1935-05-01
Abstract: 452,058. Fusible cut-outs. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and BREEZE, H. W., 132, Wrotham Road, Gravesend. May 1, 1935, Nos. 12985 /35 and 6142 /36. [Class 38 (i)] In a fusible cut-out comprising a fusible member mounted in a tubular passage and fuse carrier, expansion chambers are formed at each end of the passage by two pairs of flanges on the carrier co. operating with side and end walls on the base. As shown in the Figure, the base is formed in two parts namely, a base plate 48anc a frame 49 secured to the base plate by a screw 50, the two parts between them forming chambers 10 for the contact blocks 11. The fuse carrier 1 is provided with pairs of projections 5, 8 which in conjunction with the walls of the frame 49 form expansion chambers shut off from communication with the chambers 10. The carrier also is provided with a block 22 which together with the frame part 23 shields one set of contacts from the other. The cut-out is provided with a cover which is retained in position by a projection 30 and a wire which is passed through a hole 31. In a modification, the flanges 8 are dispensed with, the cover of the cut-out then acting as the rear walls of the expansion chambers.
Patent GB-693534-A (GB)
Title: Improvements in and relating to the smoothing of textile material under the action of steam
IPC: D06F71/36
Filed: 1951-06-01
Abstract: 693,534. Ironing-presses. KLEINDIENST, H., and REICHART, H. [trading as KLEINDIENST & CO.], and PERTICH E. June 1, 1951 [June 2, 1950], No. 13012/51. Class 138 (ii). Garments and the like are steamed while being pressed, then subjected to the action of suction for drying and finally exposed to the blowing action of compressed air for a short time during which the mechanical pressure is discontinued. The air blowing treatment is preferably started while the press padding is still slightly moist, and moist hot air or air mixed with steam may be used. A press for the process comprises a fixed plate 1 and a manually movable plate 2, both plates having separate steaming and heating chambers. Steam is fed to the steaming chamber 3 of the lower press plate by means of a steam pipe 9, the heating chamber 4 being supplied through apertures 30 in the pipe 9. The steaming operation is controlled by means of a valve 12 in the pipe 9 operated by a foot pedal (not shown), a further valve and lever (not shown) being provided for the upper plate. A pipe 17 containing a valve 29 is used for applying suction and for the air blowing treatment. Both treatments may be produced by the same blower by reversing the rotation of the blower or by means of the valve arrangement seen in Figs. 5 and 6 (not shown). Existing presses may be converted by connecting an air blower to the existing suction pipe through a two-way valve.
Patent GB-570964-A (GB)
Title: Improvements relating to road marking devices
IPC: E01F9/06
Filed: 1943-08-11
Abstract: 570,964. Road studs. GELL, P. V. W. Aug. 11, 1943, No. 13019. [Class 3 (ii)] A road-marking stud comprises a head b which is removably fixed into a road-embedded base a in such a manner that its level can be adjusted to suit changing levels of the road surface. In the form shown, the shank e of the head is screw threaded to engage ar internal thread in the socket c of the base. The underpart of the upper exposed portion of the head engages the surface dressing of the road to offer frictional resistance to unscrewing.
Patent GB-1453768-A (GB)
Title: Process for the production of hydroxydiphenyl
IPC: C07C39/15
Filed: 1974-03-25
Abstract: 1453768 Production of hydroxydiphenyl BAYER AG 25 March 1974 [26 March 1973] 13057/74 Heading C2C A process for the production of hydroxydiphenyl in which a starting material comprising completely and/or partially hydrogenated hydroxy-diphenyl or the corresponding keto compound, is dehydrogenated in the gaseous phase in the presence of a dehydrogenation catalyst comprising Ni, Cr, Al, Cu and alkali metal sulphate, and/or alkali metal carbonate, is characterized in that a compound of Formula I in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, which may be identical or different, each represents a linear or optionally branched C 1-6  alkyl radical, and R<SP>3</SP> may also represent a hydrogen atom, is added as a stabililizer to the starting material before it comes into contact for the first time with air and/or other free oxygen containing gases.
Patent GB-1407749-A (GB)
Title: Electrostatic recording medium
IPC: H04N1/032
Filed: 1973-03-19
Abstract: 1407749 Electrostatic recording coating KANZAKI PAPER MFG CO LTD 19 March 1973 [18 March 1972] 13084/73 Heading B2E An electrostatic recording medium is produced by subjecting the exposed surfaces of the dried dielctric recording layer disposed on an electrically conductive substrate to a scraping treatment with a scraper, the recording layer comprising an insulating resin. The process enables "white spots" to be avoided and provides an electrostatic recording medium having a good writeablity. The scraper means preferably includes an elongated contact area which is in contact with the exposed surface of the dielectric recording layer in a direction which is or may be transverse to the recording layer. The surface may be scraped by drawing it on or over the contact area of the scraper. The scraping treatment may be repeated two or more times. As shown in Figure 1 the scraper 21 in the form of an elongated blade is in contact with a moving electrostatic recording medium 22 comprising an electrically conductive substrate 23 and a dielectric recording layer 24. The scraper 21 has an elongated contact edge 25 semi-circular in crosssection. In other embodiments the scraper is formed as a bar of circular cross-section (Figure 2, not shown), a bar of triangular section (Fig 3, not shown) and in the shape of a trapezoid (Figure 4, not shown). In another embodiment as shown in Figure 5 the scraper comprises an elongated member 21a having a flat contact surface 25 and a cooperating member 21b in the form of a blade, the bottom edge of which is in contact under pressure with the surface of the substrate 23. The dielectric layer may comprise, vinyl acetate resin, vinyl chloride resin, silicone resin, epoxy resin, vinyl acetate-methacrylate copolymer or a vinyl acetate-styrene copolymer. The electrical conductive substrate may be paper, plastics film or synthetic paper treated to impart to it electrical conductivity. Preferably the scraping treatment is applied uniformly over the whole width of the recording layer but it may be applied to a part only of the layer.
Patent GB-1333474-A (GB)
Title: Preparation of transversely fibrillated thermoplastic films
IPC: B29C55/08
Filed: 1971-05-04
Abstract: 1333474 Film fibrillation HERCULES Inc 4 May 1971 [4 May 1970] 13085/71 Headings B5B and B5N [Also in Division D1] A process for producing a transversely striated, transversely oriented, transversely fibrillated film comprises extruding an unoriented thermoplastic film from a die head 1 (Figs. 1 and 2); forming a plurality of equally spaced transverse striations in the film by passing it through the nip formed between embossing roll 2 and pressure roll 3 to form a film 5 having relatively thick transverse ribs connected by relatively thin transverse web portions; forming edges on the film which are substantially thicker than the transverse web portions; gripping the thickened edges of the film 5 with tenter clips 11 on endless chains 9, 9<SP>1</SP>, and transversely stretching it on tenter frame 7 at a temperature below the crystalline m.pt. of the film to orient the film transversely ; and fibrillating the web areas between the transverse ribs and the thickened edges by passing the transversely oriented film between rubber rollers 13, 13<SP>1</SP> which contact the film only between the edges and rotate at different peripheral speeds. The thickened edges may be formed in the film either during extrusion or during the embossing step. If desired, longitudinal stretching of the fibrillated film may be accomplished between feed and draw rolls 14 and 15 respectively. The fibrillation step may also be effected by passing the film through a high pressure gas stream. Suitable thermoplastic film forming materials are polyethylene, polypropylene, nylon, polyethylene terephthalate and acrylic polymers. A cross-laid non-woven laminar fabric may be prepared by feeding the transversely striated, oriented, and fibrillated film 20 (Fig. 4) and a conventional longitudinally striated fibrillated film 22 from rolls 21 and 23 into the nip of pull rolls 24, 24<SP>1</SP> to produce a laminar structure, having filaments cross-laid at substantially 90 degrees, which is bonded by passage between pull rolls 26, 26<SP>1</SP> after passage between radiant heaters 25, 25<SP>1</SP>. Bonding may also be effected by the use of adhesives, ultrasonic energy or calendering. A cross-laid non-woven laminar fabric in which the transverse filaments are at an angle of less than 90 degrees may be prepared by causing one edge of the transversely fibrillated film to travel a greater distance than the other edge from roll 21 to nip rolls 24, 24<SP>1</SP> (Fig. 5, not shown).
Patent GB-1137981-A (GB)
Title: Improvements in and relating to control apparatus
IPC: G05D23/22
Filed: 1966-03-24
Abstract: 1,137,981. Automatic temperature control systems. HONEYWELL Inc. March 24,1966 [April 12,1965], No.13134/66. Heading G3R. An input signal above or below a dead band causes an amplifier 30 or 31 to energize a reversing motor 14 through relays 35, 42 additional contacts on which cause a capacitor 60 or 61 to be charged. When the error is reduced and relay 35 or 42 releases the relevant capacitor is connected to the input of the other amplifier so that this other amplifier will not respond to signals, particularly overshoot signals, during the discharge time of this capacitor. The motor drives a balancing potentiometer 25, 26 and a valve 13 controlling the fuel to an oven the temperature of which is detected by a thermocouple 11 whose output at the set temperature is balanced by the voltage across a resistor 16 so that the signal from an amplifier 18 has the same sign as the deviation. Capacitors 60, 61 are charged from opposing voltage supplies 53, 56. A manual switch 22 inserts a reset network 19 to provide a signal of the same polarity as the error signal.
Patent GB-1351178-A (GB)
Title: Hydraulic jacks
IPC: B66F3/42
Filed: 1971-05-05
Abstract: 1351178 Hydraulic jacks or pit props J HAAMANN 5 May 1971 [8 May 1970] 13177/71 Heading F1D An hydraulic jack or pit prop comprises a ram 2, 21 slidable in a cylinder 1 and a ram head 3 containing a valve assembly, the valve assembly comprising a relief valve 57, a non-return ball valve, and a release valve 6 operable either manually or by fluid pressure. To raise the jack a throttle valve 7 is first unscrewed. This allows liquid to flow from a line 75 past the non-return ball valve and thence through passages 81, 82, 31 into the cylinder 1. Should an excess pressure occur, liquid displaces the relief valve 57 and escapes through a line 87, 33, 76. The release of liquid from the jack is effected by leftward movement of the release valve 6 away from its seat 82 to open a flow path 31, 9, 15, 34, 74 into the line 75, the line 75 being connected to return by a valve (not shown) during this operation. Leftward movement of the valve 6 is effected by manually pivoting a lever 13 or by pressurizing an annular chamber 14 through the line 76. The valve 7 may be constructed to open the line 76 while closing the line 75 and vice versa.
Patent GB-241828-A (GB)
Title: An improved rivet and expanding bolt
IPC: F16B19/10
Filed: 1925-05-20
Abstract: 241,828. Foss, T. M. May 20, 1925. Bolts: rivets.-A tubular rivet 6 of soft metal such as soft steel or copper, enlarged at the outer end to prevent it being inserted too far into a hole, is expanded into engagement therewith by a bolt 7 and nut 8. The riveting operation can ue carried out when only one side of the tank &c. into which it is inserted is accessible. Pin-like anchoring lugs 11 are provided in the bolt head and are driven radially outwards into engagement with the inner surface of the tank &c. by a pin 12 which is passed down the hollow shank of the bolt. The pin 12 is subsequently replaced by a permanent pin which fits the bore more closely. An annular groove 10 is provided in the underside of the nut 8 for expanding the outer end of the rivet, while the inner end is expanded by the shaped bolt head. In the modification shown in Fig. 7, the bolt head and underside of the nut are shaped to expand the rivet 6b at both ends as shown. In a further modification the rivet is provided with an external screw thread at one end and is held in position bv a nut before a second expanding nut is screwed on the bolt. In a further modification the rivet projects slightly beyond the inner surface of the parts to be joined thereby, and is expanded into engagement therewith by the head of the bolt.
Patent GB-147191-A (GB)
Title: Improvements in apparatus for recording fluid pressures or differences between fluidpressures
IPC: G01L7/00
Filed: 1920-07-07
Abstract: 147,191. Smoot, C. H. Feb. 24, 1919, [Convention date]. Recording by co-ordinates in apparatus for recording the pressure of a fluid, or the rate of flow through a conduit as derived from a Venturi pressure-difference. The pressure variation imparts movement to an actuating-member effecting the record against the force of a spring in a manner depending upon the degree of opening of a valve controlling the application of a relay-fluid to both sides of a diaphragm. The member of which the movement is to be recorded has a recess 65 in which is mounted an adjustable screw 66, the motion being transmitted, through a lever 72, rod 29, arm 24, and rod 15, to a marking- device 14 which engages a recording-chart 13 on a clock-driven drum 12. The upper end of the rod 29 is carried by a yoke 30 pivoted on the arm 24, and o:a the same pivot is mounted a second yoke 27 which carries the rod 15. A spring 32 is secured to an extension 31 of the yoke 30 and to an adjusting-member 33 in order to control the pressure of the marking-device 14 on the chart. By adjusting the position of the screw head 66 in the slot 65, the scale of the record can be modified as desired, and the extent of movement of the lever 72 is regulated by means of set-screws 75, 76. To compensate for the weight of the moving parts, a leaf spring 54 passes through knife-edges 55 on the stem of the valve 49 and can be adjusted by the screws 56- 58. To prevent rapid operation, or too sudden changes in the position of the actuating-member, a damping device is provided comprising a dashpot 61 in which operates a piston 59, the space above and below the said piston communicating through a by-pass 62 which can be regulated by a needle valve 63.
Patent GB-1429332-A (GB)
Title: Method of compaction of bulk materials
IPC: B02C1/00
Filed: 1973-03-20
Abstract: 1429332 Soil compacting; compacting railway ballast H SIEKE and R SIEKE 20 March 1973 [21 March 1972] 13261/73 Headings E1F and E1G When earth, rail road ballast or like material is compacted by vibratory tools, which are each given a heavy blow at the start of each stroke of vibration, each tool is pressed for a certain period of time against the material and then the pressure is allowed to reduce. The pressure may be kept substantially uniform during said time period as shown, or may be gradually increased or reduced during said period. The pressure applied to the tool may be in more than one direction. Specification 1327519 is referred to.
Patent GB-292325-A (GB)
Title: Ink well
IPC: B43L25/10
Filed: 1927-05-17
Abstract: 292,325. Dann, E. G. May 17, 1927. Inkstands; fountain-pen fillers.-The bottom 4 of an ink-well is provided with recess 6 which is laterally offset relatively to the opening through which the pen is inserted so that a depth of ink sufficient to fill a fountain-pen of the self-filling type is obtained by inserting the pen into the well in a slanting direction. The top 5 of the well is provided with an angularly disposed neck 7 fitted with a split bush 8 into which is inserted a tapered tube 11 reaching almost, to the bottom of the recess 6, thereby forming a support. for the pen when the latter is not in use, the body of the pen serving to seal the tube 11 to prevent the evaporation of the ink. The tube 11 may be removed and used as a funnel when filling the ink-well, the tube being held vertically with its lower end within the opening in the top 5.
Patent GB-1022455-A (GB)
Title: Twisted yarns
IPC: F24H3/04
Filed: 1964-03-31
Abstract: 1,022,455. Yarns. ESTALS. PAINBOURGEAS. March 31,1964 [May 25,1963], No. 13288/64. Heading D1F. A method of manufacturing a twisted yarn from at least two component threads comprises a first step of loosely twisting the component threads together and a second step of subjecting the loosely twisted component threads to a final twisting operation. The twist inserted in the first step may be in the same sense as or opposite sense to the final twist. In Fig. 1 one component thread 1<SP>1</SP> is drawn from a fixed bobbin 1 through a hollow spindle 4 on which a spool 2, carrying the second component thread 2 is mounted. The spindle 4 is rotated by a belt 8 to twist thread 2<SP>1</SP> about thread 1<SP>1</SP> to produce a loosely twisted yarn 3<SP>1</SP> which is wound on a flanged bobbin 3. The bobbin 3 is then placed, see Fig. 4, on a spindle 10 and covered by a bell 11 having an aperture 15 through which the yarn may be withdrawn. The spindle 10 is driven to insert the final twist in the yarn and the finished yarn wound into a package 5. The packages 1 and 5 may be of other known forms. The final twist may be inserted by any other type of twister in which the threads are frictionally engaged by non-rotating elements only. If more than two components threads are to be employed more than one thread is wound on the package 1 and/or 2. A stop motion operating upon breakage of the component threads or the loosely twisted yarn, may be provided.
Patent GB-611489-A (GB)
Title: Wheel fairing
IPC: B60B3/00
Filed: 1946-05-02
Abstract: 611,489. Vehicle wheels. WINGFOOT CORPORATION. May 2, 1946, No. 13308. Convention date, Jan. 8. [Class 144 (i)] A spoke-covering disc 26, particularly for use on aircraft wheels, is secured in position by means of spring clips 30 of hairpin shape with indents 42 adapted to snap into holes 40 in the spokes 16. The disc may be provided with an aperture, closed by a cap 48, preferably arranged adjacent the valve-stem of the tyre 20.
Patent GB-197539-A (GB)
Title: Improvements in, or relating to, poultry rearing apparatus
IPC: A01K31/18
Filed: 1922-05-11
Abstract: 197,539. Preece, D. E. G. May 11, 1922. Oil stoves. - A fostermother is provided with a heating lamp h having a reservoir of triangular form to rest upon converging guides g, so that on withdrawing it slightly the lamp can be lowered for removal by the door i. The floor is protected by a metal plate j.