baber/WOPTO huggingface dataset:
Patent GB-140455-A (GB)
Title: Improved appliance adapted for use as a tap wrench or vice
IPC: B25B13/06
Filed: 1920-03-18
Abstract: 140,455. Seillon et Reuter. March 6, 1919, [Convention date]. Vices.-In adjustable tap wrenches or vices of the kind having jaws forced together by screws and provided with co-operating notches at right angles to each other, each jaw is provided with a handle and an additional notch and midway between the screws so that the tool may be arranged either as a singlehanded or double-handed wrench. Two identically shaped members 1. 1<1> prolonged to form handles 4, 4<1>, and forced together by screws 3, are provided with notches 5 and 8 and additional notches 6 midway between the screws 3. When arranged as in Fig. 5, the tool may be used as a vice or single-handed wrench; or, as in Fig. 2, as a double-handed wrench. A screw 7, Fig. 5, in the member 1<1> may be adjusted so as to maintain parallelism of the members 1, 1<1>.
Patent GB-963551-A (GB)
Title: Improvements in or relating to optical projection apparatus
Inventor: HONICK KENNETH ROBERT
IPC: G02B1/00
Filed: 1962-03-02
Abstract: 963,551. Rear projection apparatus. MINISTER OF AVIATION. Feb. 26, 1963 [March 2, 1962], No. 8135/62. Heading G2J. In optical rear projection apparatus as in Specification 926,448 for use in aircraft, for example, under variable ambient light conditions, the brightness of the projected image is controlled by a selective light filter 18 comprising a series metal wire gauze pieces of different mesh 23, 24, 25, carried on a sector 22 pivoted at 21 and guided between the flanges of wheel 30. "Clicker" mechanism 28 holds the sector at any of five positions with respect to the optical axis 26, position 1 as shown, corresponding to unobstructed light while position 5 corresponds to complete light cut-off by extension 27, as in broken lines. Filters 23, 24, 25 may alternatively be of apertured plates or of metal foil with etched holes. Filter 18 is placed between lamp 15 and heat filter 16 in contact with lens 17 of condenser 14;while compound objective 12 projects an image from transparency 13 on to translucent screen 11 having a Fresnel lens.
Patent GB-537729-A (GB)
Title: Improvements in or relating to closures for containers
IPC: B65D41/12
Filed: 1940-05-07
Abstract: 537,729. Closures for containers. CARTNER. J., and SUTCLIFFE, T. May 7, 1940, No. 8210 [Class 125 (iii)] A closure for a bottle 1 or other container consists of a cap with a narrow flange 3 the lower edge 4 of which embraces the rim 2 at the mouth of the container, and some relatively long tongues 5 depending from the lower edge 4. The upper parts of the tongues 5 are turned under the rim 2 of the bottle neck to engage it, while the lower parts are left depending from the flange and at a distance from the bottle neck so that a blunt instrument can force it from the neck. The narrow flange with tongues may extend round half the circumference of the cap, and a deep flange inturned under the rim 2 extend round the other half. The cap may also be secured by a jointed locking ring, and a cardboard disc or packing ring 7 may be included in the cap. Specification 445,143 is referred to.
Patent GB-1027078-A (GB)
Title: Improvements relating to gamma-ray apparatus
Inventor: FULKER GEORGE ROBERT
IPC: G21F5/02
Filed: 1964-02-27
Abstract: 1,027,078. Container for radio-active sources. T.E.M. INSTRUMENTS Ltd. Feb. 25, 1965 [Feb. 27, 1964], No. 8240/64. Heading H5R. A shielding container has an array of non- linear passages, one for each of a plurality of radio-active source units and dive means are provided for coupling to a source unit to move it out of the container. The container is a barrel-like body 1 (Fig. 2, not shown), of lead encased in steel, or of depleted uranium, having an axial passage 2 and the array of passages 3 spaced about the latter, the midpoint of each rear and the ends spaced radially from the passage 2. Associated with each passage 3 is a rectilinear passage 4 accommodating an interlocking rod 6. The source units (Fig. 7, not shown), each contained in a respective passage 3 comprise a wire helix 17 enclosing one or more doubly encapsulated source members 18, together with " dummy " capsules to produce a desired radiation field, one end closed by a plug 19 and the other, fitted with a rod 20 and adapted for engagement with the drive means. The rod 20 of a source unit projects from the end of a passage 3 into a coupling and locking arrangement 8, 11, such that the unit may be locked inside the passage 3 (in a screened position) by means of locking detents 12 which, urged by leaf springs 15, press against the rod 20. The source unit is unlocked for movement when a drive unit 22 (Fig. 1, not shown), and a guide unit 25, for guiding the source to the area for irradiation, are coupled at respective ends of the passage 3 to coupling parts 8. A drive unit 22 comprises a flexible drive rod, powered by electrical means, which moves within a duct 23, which on attachment to the coupling part 8 causes a wedge 13 attached to a plunger 14 to be forced into the chamfered aperture of the upper locking detent 12, causing the latter to be pushed upward away from the locking rod 20 of the source unit. When a guide duct is attached to the other end of the passage 3, the interlock rod 6 is forced to carry a similar plunger 13 into the aperture of the lower detent 12 freeing the source unit completely, for movement by the drive means. Three independently operable drive units are provided, controlled at a panel 32 which has indicators 33 showing the source unit selected and fitted with emergency return mechanisms 24. Safety means are provided comprising an electric interlock circuit associated with each guide duct, a plug 29 being coupled to socket 30 on the end plate 7. Each socket is connected with a set of microswitches 31 associated with the locking detents 12, to prevent actuation of the drive means in the case of incorrect coupling of the ducts or of a catheter on the guide duct. Applications of the apparatus are therapeutic, when a catheter may be attached to any of the three flexible guide ducts for insertion into a body cavity, or industrial, for weld examination &c.
Patent GB-783771-A (GB)
Title: Improvements in or relating to torque limiting clutches with thermal release
IPC: F16D9/02
Filed: 1955-03-22
Abstract: 783,771. Friction clutches. AIR-EQUIPMENT. March 22, 1955 [Nov. 3, 1954], No. 8269/55. Class 80 (2). A driving-shaft 2 and a driven shaft 1 are connected by a multi-disc clutch 4 which slips on overload, the heat generated in the friction discs passing to a presser ring 18 made from a material having a relatively high coefficient of thermal expansion and abutted by the edge of a ring 17 made from a material having a relatively low coefficient of thermal expansion, a support member 14 biased downwardly in the clutch-engaging direction by springs 11 engaging the ring 17, the outer ring 18 ultimately expanding with increasing temperature to an extent sufficient to allow the inner ring 17 to slip through it and thus disengage the clutch. The outer ring 18 may be made of aluminium &c. and is coated with a metal having a hardness number at least equal to that of nickel, such as chromium, &c., while the inner ring 17 may be made of steel, &c. The degree of compression of the clutch engaging springs 11 is adjusted by turning a spring-supporting plate 10 threaded on a part of the driven clutch member 9 and locking it relatively in position thereon by stoppins 15. Specifications 648,984 and 783,772 are referred to.
Patent GB-888945-A (GB)
Title: Process for the preparation of epoxide resins
IPC: C07D303/24
Filed: 1960-03-09
Abstract: 888,945. Preparation of polyepoxy-polyethers. HENKEL & CIE G.m.b.H. March 9, 1960 [March 13, 1959; June 20, 1959], No. 8279/60. Class 2 (3). [Also in Group IV(a)] Polyepoxy-polyethers are prepared by reacting, at elevated temperature, compounds containing more than one phenolic hydroxyl group and one or no carboxyl group with a haloepoxyalkane containing a halogen atom adjacent to the epoxy group, said haloepoxyalkane being used in an amount of more than 2 mol per phenolic hydroxyl group, in the presence of a catalyst consisting of an organic high molecular weight compound insoluble in the reaction mixture, said catalyst containing either a saltlike group, or a group which is converted into a saltlike group under the reaction conditions, or an acid amide group. After separation of the catalyst excess haloepoxyalkane and volatile reaction products are distilled off. The catalyst may be removed by nitration. The haloepoxyalkane is preferably used in an. amount of from 5 to 40 mol per phenolic hydroxyl group. The catalyst may be the salt of an anion or a cation exchange resin, or an amphoteric ion exchange resin, an anion exchange resin as the free base, an aminoplast, a polyamide, an epoxide resin cured with a basic hardener, or a protein. It is preferably used in a granular form from which finely powdered material has been removed to ease filtration. It may or may not contain water. Examples are given of the polyphenols and of the haloepoxyalkanes. The products may be bleached with up to 1% by weight of an organic peroxide, e.g. methyl ethyl ketone peroxide, methyl isobutyl ketone peroxide or cyclohexanone peroxide. In a typical example resorcinol and epichlorohydrin are heated under reflux with a water-containing, strongly basic anion exchanger based on polystyrene which contains quaternary benzylammonium groups. After filtration to remove the catalyst and fractional distillation under reduced pressure the product was almost pure resorcinol diglycidyl ether.
Patent GB-198828-A (GB)
Title: Improvements in or relating to cylindrical drums or sieves
IPC: B07B1/22
Filed: 1922-03-22
Abstract: 198,828. Dossor, F. M. March 22, 1922. Fixed sieves. - Cylindrical sieves are formed of woven wire secured to grooved ribs B on the end walls C<1>, of the frame, which are adjustable to tension the sieve longitudinally by stay bars I. The ends of the sieve may be held in the grooved ribs by and the longitudinal edges secured by clamping bars D bolted together at F. The lower part of the sieve may be supported against sagging by curved bars R arranged between the lower tensioning bars I. Beaters in the form of cloth-covered bars or brushes are driven by a pulley P. The frame is hinged at one end to permit of emptying the sieve and is inclined. The discharge may be retarded by inserting strips in the discharge shoot K<1>
Patent GB-492446-A (GB)
Title: Fluid flow meters
IPC: G01F1/37
Filed: 1937-03-22
Abstract: 492,446. Differential pressure gauges. WALKER, W. C. March 22, 1937, No. 8353. [Class 106 (ii)] The pressures on either side of a restriction in a flow meter are brought to two chambers having a connection therebetween and containing a liquid non-miscible with the fluid to be metered, and means to apply simultaneously the high pressure to one chamber and the low pressure to the other alternately to cause the liquid to pass alternately in opposite directions through the connection at a rate proportional to the difference between the pressures. A supporting bracket 1 has a forward extending web 2 rigidly supporting a shelf 3. The shelf and web are recessed to form a well 4 for the reception of a movable part 25. This comprises a drum mounted on a shaft 7 so as to rock in bearings 5, 6. Concentrically mounted on the shaft inside the drum is a cylindrical partition wall 26 supported by radial webs 27 and forming an annular chamber which is divided into two chambers 28, 29 by webs 30. An orifice 33 connects the chambers. On the end wall 31 of the drum is a housing enclosing two conduits each communicating with one chamber the opposite ends of the conduits communicating with the bores 8, 9 respectively of the shaft 7 which in turn communicate by pipes 42, 43 with a reversing valve 40 which are connected the pipes 44, 45 from opposite sides of the construction in the main pipe. The pressure difference forces liquid from one chamber 28 through the orifice 33 to the other chamber and this causes the drum to rock and make one of two mercury switches 61. This energizes a solenoid 50 which through a tooth on the armature engages a pin on the valve 40 and rotates it to reverse the pressure connections to the chambers 28, 29 thus reversing the flow through orifice 33. The drum rocks the opposite way until the second switch 61 is made whereupon the valve is again reversed. A scale 89 secured to the drum passes back and fore past the hand 88. An odometer 70 is actuated by a bifurcated trip lever 71 engaging a pin 72 on the bar 55. A ratchet may be arranged on the valve 40 instead of pins and spring switches may be actuated by projections from the casing. Several different types of orifice 33 are shown.
Patent GB-347827-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: G04B47/00
Filed: 1930-03-17
Abstract: 347,827. Igniters combined with watches. BOBILLIER, G., 85, Hatton Garden, London. March 17, 1930, No. 8568. [Class 75 (iii).] In a pyrophoric igniter in which a watch is carried in a side wall, the winding stem 11 of the watch 10 extends through an aperture or a slot in an end wall 7 and is provided with a pivoted handle 17, adapted to be swung towards or against the end wall into an inoperative position and normally prevented from moving into the operative position as by the pivoted spring-actuated arm 8 of the ignition device. The arm 8 is connected with the friction-wheel and is retained by a latch 9 in the normal position. In the form shown, the watch is inserted in a recess 12 by pulling out the winding stem and passing the lower part into a keyhole slot 15 in the end wall and a slot 14 extending from the latter to the top of the recess 12, the stem being then pressed inwardly into its normal position so that an enlarged part 16 engages in the inner end of the keyhole slot and retains the watch in place. A screwdriver 18 may be provided in the plug 19 for adjusting the screw which regulates the spring holding the flint against the friction-wheel. The Provisional Specification states also that the lower part of the winding stem may be inserted in the keyhole slot by tilting the watch without pulling out the stem.
Patent GB-582459-A (GB)
Title: Improvements relating to rope and cable grips or jockeys
IPC: F16G11/10
Filed: 1944-05-08
Abstract: 582,459. Rope grips. WHITEHEAD, S. May 8, 1944, No. 8728. [Class 78 (ii)] Relates to a rope grip of the kind comprising a pair of movable jaws, one of which is operable by a helical or inclined cam device to effect initial engagement of the jaws with the rope and also to release the jaws when required, and the other of which is operable by a cam or screw device to effect final engagement or tightening of the jaws on the rope. According to the invention the grip is provided with a knock-off device comprising a pair of cams 11a, 14a on the engaging and releasing jaw 8, Fig. 4, and a similar pair 4a, 7a on a knock-off lever 1, Fig. 3, the cams 11a, 14a being arranged at different radii from each other but at the same radii respectively as the cams 4a, 7a and each cam having at least one inclined or helical surface such as 10, all such surfaces subtending equal angles at the pivotal axis of the lever, and each cam having also a bearing surface such as 11 which is arranged normal to the plane of said axis, such surfaces forming a stable seating for the lever when in the engaged position. In the embodiment shown in Fig. 5, the tightening jaw 15 is pivotally mounted at 16 on the engaging and releasing jaw 8 and the knock-off lever 1 is mounted on a bolt 16a with a wing nut 17. Specification 550,709 is referred to.
Patent GB-467078-A (GB)
Title: Improvements in or relating to electric discharge tubes formed of quartz
IPC: H01J61/34
Filed: 1937-03-24
Abstract: 467,078. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 24, 1937, No. 8733. Convention date, March 27, 1936. Drawings to Specification. [Class 39 (i)] In a discharge tube formed of quartz, which contains neon and acquires a temperature higher than 500‹ C., leakage of neon through the heated quartz is prevented by surrounding the tube with an envelope containing neon. The pressure of the neon may be 5-250 mms., preferably 20-100 mms. A quantity of a further gas, such as nitrogen, which does not penetrate quartz may be introduced into the outer envelope to increase the conduction of heat from the tube. The neon within the tube may contain a small quantity of argon, for example 0À2 per cent, to reduce the starting voltage. An example is described in which a high pressure mercury lamp working at 10 atmospheres is supported within an outer bulb containing a mixture of neon and nitrogen at 500 mms. pressure, the partial pressure of the neon being 60 mms. The tube contains neon at 20 mms. The inner and outer diameters of the quartz tube are 4 and 7À5 mms. respectively, and the self-heated electrodes of tungsten coated with barium oxide are spaced 18 mms. apart.
Patent GB-216496-A (GB)
Title: Folding box combined with a model-making sheet
IPC: A63H33/16
Filed: 1924-04-07
Abstract: 216,496. Wezel & Naumann Akt.-Ges. May 23, 1923, [Convention date]. Drawings to Specification. Wrappers.-The Specification as open to inspection under Sect. 91 (3) (a) comprises a box wrapper printed as a model-making sheet. This subject-matter does not appear in the Specification as accepted.
Patent GB-235986-A (GB)
Title: Liquid metal polish
IPC: C09G1/02
Filed: 1924-04-08
Abstract: A liquid polish for brass, silver, &c. consists of a mixture of 1 1/4 oz. of whiting, 1 oz. of powdered bathbrick, 1/4 oz. of venetian red, and 3 1/2 oz. of paraffin oil.
Patent GB-556356-A (GB)
Title: Improvements in or relating to slides for lathes and other machine tools
IPC: B23Q5/22
Filed: 1942-03-25
Abstract: 556,356. Bearings. STEINLE, L. C., and HANWELL, C. H. March 25, 1942, No. 8865/43. Divided out of 556,312. [Class 12 (i)] [Also in Group XXII] Slides for lathes and other machine tools have an extension m beyond the slide carrying roller o bearing on a flat surface p on the frame. The pin n of the roller has an eccentric mounting to permit the bearing pressure to be adjusted and, as shown applied to the thread rolling machine described in Specification 516,233, [Group XXII], the surface is joined on the overarm e.
Patent GB-146607-A (GB)
Title: Improvements in or relating to fire-proof floors and ceilings
IPC: E04B5/19
Filed: 1919-04-09
Abstract: 146,607. Eoll, A. F. April 9, 1919. Reinforced-concrete floors. - In a ribbed concrete floor comprising flanged hollow blocks as shown in Fig. 6, the edges 10 of the flanges are stepped in opposite directions so that adjoining blocks overlap. The blocks may have horizontal or vertical internal partitions, and the central aperture may be oval or of other shape,
Patent GB-1027266-A (GB)
Title: Production of linear polyesters of high molecular weight
Inventor: NUKUSHINA KENJI
IPC: C08G63/85
Filed: 1964-03-03
Abstract: In the manufacture of polyethylene terephthalate by effecting an esterification or ester-interchange reaction between terephthalic acid or a dialkyl ester of terephthalic acid and ethylene glycol followed by polycondensing the resulting ester, there is used as a catalyst, at least for the polycondensation reaction, titanium trichloride, ammonium orthotitanate or ammonium metatitanate. Additional catalysts may be used, such as compounds of Li, Na, K, Ca, Mg, Zn, Ba, Sr, La, Al, Ph, Sn, Ti, Sh, Co, Ge, Mn, Nb, Co, Fe, Nd or Et (e.g. potassium hydroxide, sodium carbonate, calcium acetate or cobaltous chloride) or tetraethyl ammonium hydroxide. Minor amounts of other polyester-forming reagents, e.g. other dicarboxylic acids (or their dialkyl esters), other glycols or hydroxycarboxylic acids may be included. Polyesterification may also be effected in the presence of the usual phosphorus compounds, pigments or delustrants Examples describe the reaction of dimethyl terephthalate and ethylene glycol, with or without bis-(2-hydroxyethyl) adipate or bis-(2-hydroxyethyl) isophthalate and the reaction of free terephthalatic acid and ethylene glycol.
Patent GB-748338-A (GB)
Title: Improvements in or relating to clamping arrangements
IPC: F16B13/08
Filed: 1952-04-09
Abstract: 748,338. Wall plugs &c. GREGOIRE, P., and LADERRIERE, A. H. April 9, 1952 [April 26, 1951], No. 9046/52. Class 89 (1). Parts 7, 8, of which the part 7 may have a bush set ina a cement foundation, are connected together by means that does not require the tapping of a screw-thread. Both parts are provided with a plain hole 10, 10<SP>1</SP>, the two holes being of the same. diameter, and fixing is effected by a bolt-like member 2 having a screw-thread 3 of wide pitch radiused at 4. A resilient wire 5 is wound round the formation 3, of such length as to engage only the part 7. The end 6 of the wire may be turned outwards slightly to facilitate the expansive clamping action caused by the wire riding up the'flanks of the thread 3. A modified form of thread is described with reference to Figs. 3 and 4 (not shown), for use with two clamping wires. Locking bolt-like pins.-The thread may be applied to a nut-like member.
Patent GB-1262358-A (GB)
Title: Distance protection apparatus
IPC: H02H3/38
Filed: 1969-02-19
Abstract: 1,262,358. Protective arrangements. COMPAGNIE DES. COMPTEURS. 19 Feb., 1969 [20 Feb., 1968], No. 9046/69. Heading H2K. A distance protective arrangement for a three phase line has means for producing three signals V<SP>1</SP>a, V<SP>1</SP>b, V<SP>1</SP>c which are functions of the voltage and currents of respective phases, and means responsive to the phase sequence of these signals and the phase sequence of one of these signals, e.g. V<SP>1</SP>a, and a signal which is a function of the voltage Vbc between the other two phases. Each of the three signals may have the form V - Z(I + KIr) where V and I are the voltage and current of the respective phase, Z is a replica impedance representative of the impedance of the protected line section, Ir is the zero-sequence current and K is the earth impedance constant. These signals are produced in a circuit arrangement having current and voltage transformers with mutual inductors providing replica impedances, Fig. 1 (not shown). The Figure shows an arrangement in which the signals V<SP>1</SP>a, V<SP>1</SP>b, V<SP>1</SP>c and Vbc are converted to logic signals by amplifiers 9 ... 12 and applied to phase sequence comparators 7, 8. In the event of any fault within the protected section causing asymmetry, i.e. a single or two-phase fault to earth or a fault between two phases, an "O" signal at the output #3 of the comparator 7 causes a "NOR" logic circuit 2<SP>1</SP> to provide a signal to an "OR" circuit which provides an output controlling the operation of a three-phase circuit-breaker (not shown). When a three-phase fault occurs within the protected section, the determination of the phase sequence of Vbc and V<SP>1</SP>a in the comparator 8 provides at output P a "1" signal which is applied to an "AND" logic circuit. 2 together with the "1" signal which exists at output #3 under symmetrical conditions, the "AND" circuit applying a signal to the "OR" circuit 1. If it is desired to obtain a signal identifying any particular single-phase to earth fault, e.g. for operating a single-pole circuit-breaker in the earthed phase, a polarity comparator 6 is provided. This comparator 6 provides an output at G only when its inputs are simultaneously positive or negative, i.e. in the event of faults to earth from one or two phases within the protected section. Logic signals from the three comparators 6 ... 8 are applied to three "AND" circuits, these signals being arranged so that only the relevant "AND" circuit has three "1" signals when a single phase to earth fault exists, as fully described in the Specification.