baber/WOPTO huggingface dataset:
Patent GB-666858-A (GB)
Title: Improvements in or relating to methods of manufacturing aspherical lenses of plastic material
IPC: B29D11/00
Filed: 1948-05-14
Abstract: 666,858. Moulding aspherical lenses. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 14, 1948. [May 20, 1947] No. 13235/48. Class 87(ii). A method of making an aspherical lens of plastic material comprises (a) making a cast from a mother mould, using a gelatinous mass as the casting material, (b) drying the cast, (c) making a daughter mould from the dried cast, and (d) making a lens from the daughter mould. Thus, a gelatinizable liquid, e.g. a solution of gelatine in water, is admitted through a tube 4, Fig. 1, to the space between a mould 2 and a table 1 where it is coagulated into a mass 7. The coagulation is effected by cool liquid flowing through the mould via tubes 5, 6. The mass is removed from the mould and dried, to give the shrunken cast 8, Fig. 4, and any errors present in the mould 2 are reduced by the shrinking. A daughter mould 9, Fig. 6, is then made from the cast 8, this mould being made by electrodeposition of metal on to the cast (in which case the surface of the cast may be rendered conductive by applying a metallic layer thereto by vaporization) or by applying metal by the Schoop method or by the use of wax or of metals melting at low temperature. The mould 9 thus made may be secured to the upper stamp 10 of a press including a lower stamp 11 and a mounting 12, an aspherical lens 13 of transparent artificial resin being made in this press. The lens may be made of thermosetting or thermoplastic substances, e.g. polystyrene or polymethylmethacrylate. Instead of resin, the lens may be made of a gelatinous mass, in which case the mould 9 may be provided with channels for the passage of a cooling liquid. By using different concentrates of gelatinous mass in the first step (Fig. 1) lenses of different shapes may be obtained.
Patent GB-666733-A (GB)
Title: Improvements in or relating to a process of preparing fluoro-amine compounds and thefluoro-amine compounds resulting from said process
IPC: A62D1/00
Filed: 1949-05-18
Abstract: Fluorocarbon tertiary amines containing only carbon, fluorine and nitrogen, each nitrogen atom being attached to three carbon atoms, are prepared by electrolysing a solution of a tertiary amine in liquid hydrogen fluoride at a cell voltage insufficient to result in the formation of free fluorine; the hydrogen atoms and other replaceable atoms (e.g. hydroxyl groups) are thereby replaced by fluorine and any double bonds or aromatic nuclei are saturated with fluorine.  Preferred products are those in which the three nitrogen valencies are attached to -CF3 or -CF2- carbon groups having not more than 6 carbon atoms each, the total number of carbon atoms in the molecule being 8 or more.  By-products include compounds containing fewer carbon atoms than the starting materials.  The products are neutral and inert to ordinary reagents but combine with piperidine and with pyridine.  Examples show the preparation of (1) (C2F5)3N and (C2F5)2NCF3 from triethylamine; (2) (C4F9)3N from tri-n-butylamine; (3) (C5F11)3N from a mixture of triamylamines; (4) (CF3)3N, CF4, CF3H and NF3 from trimethylamine; (5) (C3F7)2NC2F5 from ethyl-di-isopropylamine; (6) (CF3)2NC6F11 from dimethylaniline; and (7) (C2F5)2 N.CF2.C6F11 from diethylbenzylamine.  Other compounds mentioned are (CF3)2NC5F11, (CF3)2N(iso-C4F9), (n-C3F7)3N, (C6F13)3N, the cyclohexyl derivatives (C6F11.CF2)3N, C6F11. CF2.CF2)3N, (C6F11)3N and C6F11NRR1, where R and R1 are saturated acyclic fluorocarbon radicals such as CF3, C2F5, C3F7 and C4F9; also diamines such as (CF3)2N.CF2.CF2.CF2. N(CF3)2 and compounds containing nitrogen in a ring, e.g. C5F10NCF3 and C5F10NC2F5 derived from piperidine.  In the Specification as open to inspection under Sect. 91 it is stated that the above electrolytic process may yield compounds in which only part of the hydrogen atoms are replaced by fluorine. Such compounds have at least one fluorine atom attached to each carbon atom, and the number of carbon atoms in each group attached to the nitrogen atom is less than the number of fluorine atoms. Typical compounds are (C2F5)2NC2F4H, (C2F4H)2 NC2F5, (C2F4H)3N and (C2F3H2)3N.  The remaining hydrogen atoms may be replaced by chlorine or bromine by passing a gaseous mixture of the fluorine compound and chlorine or bromine through a heated tube.  This subject-matter does not appear in the Specification as accepted.
Patent GB-914104-A (GB)
Title: Machine for finishing the rear part of lasted shoes
IPC: A43D49/00
Filed: 1960-04-13
Abstract: 914,104. Levelling heel seats. MALVERDI, A. April 13, 1960 [April 22, 1959], No. 13291/60. Addition to 805,124. Class 17 (1). In a machine according to the parent Specification, wherein a vibratory hammer is oscillated heightwise of the shoe and the shoe is rotated about a heightwise axis in order to operate over the rear part of a shoe, means are provided for varying the amplitude of the oscillation of the hammer while the machine is in operation. The hammer moves on guide rails 15 fast with pivoted arms 17 and is oscillated heightwise by means of rod 21, the arrangement being such that more blows are struck during the ascent than during the descent so as to draw the upper towards the heel seat. As shown, rod 21 is oscillated by a slotted link 22 which is pivoted at 23 and which houses a member 24. The latter is driven at uniform speed in a circular path 25 having a fixed centre 26, so that it travels along a longer arc during the ascent of rod 21 than during the descent because of the movement of link 22. This effect may be increased by use of eccentric 32 which moves the hammer away from the shoe during descending movements of rod 21, movement of the eccentric being controlled by the motor controlling member 24. The position of pin 23 and of the lower end of rod 21 may be adjusted relatively to point 26 by means of hand wheel 31, thus varying the amplitude of the oscillations of rod 21, but the arrangement is such that the highest point of the zone pounded by the hammer remains the same. The shoe 10 on last 9 is supported on a rod 6 which is urged upwardly by piston 3 to engage the hub seat with the shaped supporting member 11, and which is rotated by means of pinion 52 and rack 53. The latter is carried by a piston 56 which is moved downwardly in cylinder 55 by fluid entering through pipe 54, this movement being controlled by the hydraulic brake shown in Fig. 5. When cylinder 55 moves downwardly plunger 58 forces fluid from cylinder 59 past the throttle valve 61 to reservoir 65. When valve 61 is partially closed, by movement of cam 62, carried by piston 56, movement of piston 56, and hence rotation of the shoe, is slowed, and cam 62 is designed so that rotation of the shoe is slow when the rear zone is being pounded, and fast when the lateral zones are being pounded. Piston 56 is-returned by releasing compressedair from cylinder 55 and reintroducing compressed-air to chamber 67 via pipe 66, oil flowing freely from the reservoir 65 to cylinder 59 via ball valve 68. The setting of the seat of the throttle valve, and hence the duration of the cycle, is adjusted by means of hand wheel 64. Specification 807,577 is referred to.
Patent GB-133184-A (GB)
IPC: E01B9/32
Abstract: 133,184. Zaliewski, J. Oct,. 15, 1918. Sleepers, securing rails to. -A construction of railway sleeper has securing means for the rails so arranged that the rails can be quickly secured for temporary use and afterwards permanently fastened. The sleeper is formed with an upper surface on which the rails rest, and near each end groups of transverse slots 18 are cut to receive shanks 17 on the rail securing clamps. Part of each slot receives a sleeve 19 extending to near the bottom so as to form locking means for the flanges 20 of the shanks 17. The rail-securing clamp 14 shown in position in Fig. 4 and part of it inverted in Fig. 6, has a lip or finger 15 which engages over the rail flange, and on its seating surface has flanged shanks 17 so placed as to drop through the slots 18 and then engage or lock under the sleeves 19 when it is desired to temporally secure the rails. Holes 22 are drilled through the clamp 14 so that bolts 21 can be passed upwards through the unoccupied portions of the slots 18, and are secured by nuts 24, as shown in Fig. 4, for permanently securing the rail.
Patent GB-849043-A (GB)
Title: New metallisable monoazo dyestuffs of the benzene-azo-naphthalene series
Inventor: LUNET FRANCOISE MARIE GERMAINE
Filed: 1958-04-28
Abstract: The invention comprises the monoazo dye of formula:  <FORM:0849043/IV (c)/1> which is prepared by diazotizing 6-chloro -4-sulpho -2- aminophenol and coupling the diazo compound with 1 : 5-dihydroxynaphthalene.  The dye gives a violet shade on wool which becomes black on after-chroming.
Patent GB-1488294-A (GB)
Title: Rock strata reinforcement
IPC: E21D21/00
Filed: 1975-04-01
Abstract: 1488294 Rock reinforcement EXCHEM HOLDINGS Ltd 25 March 1976 [1 April 1975] 13356/75 Heading E1F [Also in Division F2] A method of reinforcing rock strata comprises drilling a borehole into the strata, positioning in the inner end of the borehole one or more capsules containing a resinous composition, positioning in the borehole a first wooden reinforcing dowel which is next detachably engaged by non-metallic means with a wooden driving dowel positioned nearer the outer end of the borehole, causing the driving dowel to be rotated and thereby causing the first reinforcing dowel to rotate within the borehole whilst in contact with the capsule(s) until it has reached the inner end portion of the borehole, discontinuing rotation of the driving dowel and withdrawing it from the borehole so as to leave the first reinforcing dowel embedded in the mixed resinous composition in the inner end portion of the borehole, positioning one or more further resin-containing capsules into the outer end portion of the borehole, and thereafter inserting into the borehole with a rotary movement a second wooden reinforcing dowel so as to cause the dowel to become embedded in mixed resinous composition in the outer portion of the borehole.
Patent GB-772785-A (GB)
Title: Improvements in or relating to electric plug-and-socket couplings
IPC: H01R13/11
Filed: 1952-05-27
Abstract: 772,785. Two-part couplings. WARD & GOLDSTONE, Ltd., and COUYOUMDJIAN, A. O. May 27; 1953 [May 27, 1952], No. 13370/52. Class 38 (1).  In a three-pin socket, the earth and neutral sockets are each bent from sheet metal to form a pin-receiving portion 18, Fig. 3, and a wire-receiving portion 20, the latter portion being located in a recess in an upstanding boss 17 on an insulating base 12 by a screw 29 and nut 27 as in Specification 772,782. The portion 18 abuts a shoulder 22 in the recess and has an integral tongue 24 which is deformed outwards into a recess 26 in the base 12 to locate said portion by the first insertion of the plug or an equivalent tool. Specification 638,846 is referred to in the Provisional Specification.
Patent GB-237398-A (GB)
Title: Improvements in or relating to devices for mechanically dividing and converting liquids into uniform drops
IPC: C09H9/04
Filed: 1924-05-30
Abstract: 237,398. Akt.-Ges. f³r Chemische Produkte vorm. H. Scheidemandel, Obersohn, A., Wachtel, W., Sakom, D., and Askenasy, P. May 30, 1924. Drop-delivering apparatus.- The liquid container a is formed with openings b, into each of which is inserted a pin c having a blunt point so that a narrow passage of predetermined size is formed between the shank of a pin and the edge of the aperture, the pins being connected in pairs by a bridgepiece d to maintain the correct distance between a pin shank and the edge of the hole. Solutions of glue or gelatine, hot starch glue, molten naphthalene or stearine, at certain temperatures, may be dropped in the above manner and cooled during falling to form solid balls or pearls. The device may also be used in rotary filters to bring the water on to the filtering layer in uniform distribution.
Patent GB-1140158-A (GB)
Title: Process of investment casting
Inventor: WATTS CLAUDE HARRISON
IPC: B22C7/02
Filed: 1967-03-22
Abstract: 1,140,158. Producing formers for multi-cavity moulds. PRECISION METALSMITHS Inc. 22 March, 1967, No. 13377/67. Heading B5A. A process for assembling a former comprising a base and patterns attached to it by a gate forming member, the former being for use in a lost wax process for making a mould for a multiplicity of small articles, comprises providing a scale with graduations, positioning patterns on this scale to determine the required distance between patterns on the base in two directions, and attaching the patterns to the base in rows, at separations determined from the scale. As shown the base 10 is a hollow cylinder with a thin wax coating. The wax patterns 13 are attached to the base 10 by gateforming members 14, the wax on a small area of the base being melted to receive the gate forming member. The base may comprise a corrugated cardboard tube surrounded by a cylinder of porous paper and coated with wax. The spacing of the patterns along the cylinder axis may be determined by using a scale with the same separation as the circumferential lines, and placing patterns at the minimum separation consistent with good mould formation. The circumferential spacing is similarly determined using an annular scale whose inner surface has equal diameter to the outer surface of the cylinder, and radial lines of spacing equal at the inner edge of the annulus to that of the longitudinal lines on the base. Knowing the required separation in each direction, the patterns can be quickly attached to the base to produce the former.
Patent GB-1520627-A (GB)
Title: Microprogrammed controller with fault detection in memory addressing
IPC: G06F11/28
Filed: 1977-03-30
Abstract: 1520627 Microprogrammed prosessors HONEYWELL INFORMATION SYSTEMS ITALIA SpA 30 March 1977 [30 March 1976] 13378/77 Heading G4A In a microprogram controlled data processor, the address of an accessed microinstruction in read-only store 8 is incremented by 1 and ŒK in units 114, 115 (Fig. 3) respectively, one of these addresses being selected to fetch the next microinstruction in dependence on whether a condition specified by the currently accessed microinstruction is met or not, the parity of the selected address being compared with a parity bit stored at one of two associated locations of the accessed microinstruction. The address of the next microinstruction in a routine is derived by decoding predetermined bits of the current microinstruction to select, if the condition is not satisfied or if the microinstruction is a simple operating microinstruction (1) the output of incremeter 114 (if bit 0 = 0, bit 24 = 0, bit 25 = 0), (2) the output of a first register RR1 (bit 0 = 0, bit 24 = 1), (the output of the incremeter 114 being stored in this register as a return address when bit 0 = 1, bit 1 = 0 and bit 2 = 1) or (3) the output of a second register RR2 (bit 0 = 0, bit 25 = 1), (the output of the incrementer 114 being stored in this register when bit 0 = 1, bit 1 = 0 and bit 3 = 1). If the condition is satisfied or if the microinstruction is an absolute unconditional jump microinstruction either the current address incremented by ŒK (K being given by bits 17- 21 of the accessed microinstruction) or an absolute address given by bits 10-21 of the current microinstruction is selected in dependance on whether bit 1 is 1 or 0 respectively. When a microinstruction is accessed, the parity bits for the two possible next addresses (+1, ŒK) are fed on lines 56, 67 (Fig. 4) to error detection circuitry. If the address incremented by 1 is saved in registers RR1 or RR2 the parity bit on line 56 is stored in bistable 50 or 51 respectively. When the next address on line 38 is used to access the microstore 8 its parity is compared with, if the condition is satisfied, the parity on line 67 or, of the condition is not satisfied, with the bit on line 56 or the contents of bistable 50 or 51, an error signal 73 being generated if the address is incorrect.
Patent GB-133966-A (GB)
IPC: F01B17/04
Abstract: 133,966. Wolf Akt.-Ges., R. May 18, 1917, [Convention date]. Automatic gear.-In a compound steam-engine in which steam from one end of one cylinder is taken for heating purposes, the pressure of this steam actuates a regulating device which controls the relative quantities of steam admitted to the two ends of the cylinder. The invention is shown as applied to an engine in which a part of the exhaust from one end of the high-pressure cylinder HP is used for heating. The pressure of the steam withdrawn for this purpose through a connexion B actuates a piston K and thereby a controlling valve V which, in being moved, increases the admission at one end of the cylinder HP and decreases it at the other. The total amount of steam admitted is not varied by this device, but is under the control of a separate speed regulator.
Patent GB-752841-A (GB)
Title: Improvements in or relating to vacuum cleaning apparatus
IPC: A47L5/36
Filed: 1954-05-07
Abstract: 752,841. Joint making packing. LEWYT CORPORATION. May 7, 1954 [May 7, 1953], No. 13456/54. Class 122(3) [Also. in Group XXVIII] A seal between a tub member and a hinged lid comprises a member 40 of the shape shown secured to the tub and having a part 44 engageable by the lid. Beneath the part 44 an air space 43 is formed in the member 40.
Patent GB-1049587-A (GB)
Title: Improvements relating to the treatment of fuel cell gas electrodes
IPC: H01M4/88
Filed: 1964-04-01
Abstract: 1,049,587. Blasting. ELECTRIC STORAGE BATTERY CO. April 1, 1964 [April 8, 1963], No. 13460/64. Heading B3D. [Also in Division H1] A fuel cell electrode is shot peened by glass beads under a gas pressure of 40 p.s.i. Synthetic plastics beads may also be used. The electrode is porous and the pores are filled with liquid during the operation which is designed to close large pores.
Patent GB-378083-A (GB)
Title: Improvements in apparatus for treating persons suffering from amblyopia
IPC: A61H5/00
Filed: 1931-05-07
Abstract: 378,083. Appliances for treating defective sight. ELLIOTT OPTICAL CO., Ltd., 104, Great Saffron Hill, London, and CRAWFORD, L., 1, Ferrand Road, Shipley, Yorkshire. May 7, 1931, No. 13544. [Class 81 (ii).] An apparatus for the treatment of amblyopia comprises means for producing moving coloured images, an eyepiece through which they can be viewed and manual driving means on the base of the apparatus and operable by the patient for causing movement of the images. An optical system 25 in which the moving images are produced is supported by an arm 24 pivoted to an arm 23 pivotally mounted on a base 10. The system comprises an eyepiece 28, a rotatable disc 35 having a number of apertures 37 fitted with coloured glass which can be selectively moved opposite the eyepiece, and a pair of rotatable frames 41 carrying glass discs on which patterns are inscribed. The frames 41 have teeth which engage a bevel gear 43 rotated, through a flexible shaft 53 and gearing 52, by a handle 51. A lamp 32 is mounted behind the discs. The base 10 also carries an adjustable chin rest 13 and an adjustable head rest 18.
Patent GB-814319-A (GB)
Title: Improvements in or relating to a method and apparatus for producing identification means such as seals, badges and the like
IPC: B29C45/14
Filed: 1956-05-02
Abstract: 814,319. Making seals, badges &c., by injection moulding. STOFFEL, F. L. May 2, 1956 [May 2, 1955], No. 13580/56. Class 87(2). [Also in Group XV] Seals, badges and similar identification means are made by uniting a laminar member, carrying a picture and/or lettering, with a flexible securing member by means of a plastic mass in an injection moulding operation which forms a rim of material peripherally about the laminar member on the completion of which operation flash is pressed back into the mould. A laminar member 16, in the form of a plate, disc, tab, metal foil or membrane, either as one layer or a plurality of laminae, is placed in a mould 14, with the flexible securing member (not shown). The plastic material, which may be transparent, passes in the dry state from a hopper 6 into a feed cylinder 5 where it is melted by a heating jacket 4. The injection plunger 8 is rotatable and when turned to the feeding position, as shown, presents a recess 13 which provides a passage for the material to be forced by the plunger 7 into the heated injection cylinder 2. A needle 11, passing axially through the injection plunger, is retracted, leaving the injection nozzle 3 open, and the plunger 8 is turned through half a revolution, closing the feed passage. The plunger 8 is advanced and injects plastic material into the mould and when the mould is full the needle 11 is advanced, forcing into the mould material remaining in the nozzle and obviating flash. Two laminar members may be inserted in the mould, to form the front and rear of the identification means.
Patent GB-200289-A (GB)
Title: Improvements relating to primary cells
IPC: H01M6/08
Filed: 1922-05-15
Abstract: 200,289. Richards, V. E. May 15, 1922. Electrodes.-The carbon electrode 11 of a dry cell, with the depolarizer 12, is centralized by an insulating cap 19 at the lower end and by two cardboard discs 20 at the upper end, the discs having peripheral openings 22 as shown in plan in Fig. 4 for the introduction of the exciting mixture. The space between the discs 20 is filled with sawdust &c. mixed with glue or other binding agent and the top of the cell is sealed with pitch &c. The depolarizer and excitant may be of the kind described in Specification 199,899, and the depolarizer may be moulded round the carbon electrode as described in Specification 197,542, [Class 87 (ii), Moulding plastic &c. substances].
Patent GB-254470-A (GB)
Title: Spring supports for chairs, couches and the like
IPC: A47C23/043
Filed: 1925-05-25
Abstract: 254,470. Salmon, A. H. May 25, 1925. Spring supports for seats.-In a spring-supported seat of the kind comprising two frames a and c with interposed springs d, e, f, the springs are of the single conical coiled type and are arranged so as to constitute the sole supporting means for the upper frame c and to control both the vertical and lateral movements of the same. The springs may be arranged in two sets, tandem fashion, on each side of the chair and the front springs f may be stiffer than the rear springs d, e. A depending skirting g may hide the springs from view.
Patent GB-1372005-A (GB)
Title: Closures for bottles and like containers
IPC: B65D41/34
Filed: 1972-03-24
Abstract: 1372005 Caps for bottles V SANMUGASUNDERAM 24 March 1972 [12 July 1971] 13881/72 Heading B8T A closure for an externally threaded container or bottle is provided with two skirt portions 13, 19 which fracture when the closure is tampered with. The closure has the same features as the closure described in Specification number 790,119 but with additional slits 38 lying along skirt 8 and at right angles to circumferential slits 15. The portions 12, 14 are designed to receive threads of opposite hand when the closure is on a correspondingly threaded bottle neck, Fig. 4 (not shown) and the part 37 is crimped under a shoulder on the bottle.