baber/WOPTO huggingface dataset:
Patent GB-525684-A (GB)
Title: Improvements in or relating to fluorescent screens
IPC: H01J29/18
Filed: 1939-02-25
Abstract: 525,684. Luminescent materials. HENDERSON, S. T., and FOGG, E. W. Feb. 25, 1939, No. 6267. [Class 39 (i)] Luminescent material for use on the fluorescent screens of cathode ray tubes consists of a mixture of calcium sulphide and a yellow fluorescing substance such as (i) zinc beryllium silicate, as described in Specification 513,518, or orthosilicate as described in Specification 478,302, [Group III], or (ii) zinc borate activated with maganese. The proportions of sulphide to silicate are between 2:1 and 1:3. The sulphide may be activated with copper its emission lying principally in the bands 4700-4800 and 4200-4300 AU. The silicate has emission bands with maxima at 5400 and 5900 A.V. It may be prepared in an atmosphere of nitrogen or carbon dioxide. The sulphide may be prepared without an activator and then treated with a solution containing sodium sulphate and copper sulphate, the amounts being 5 per cent of the first by weight of the sulphide and 0.05 per cent by weight copper; this is dried and reheated with sulphur in an atmosphere of nitrogen and carbon disulphide. Small amounts of willemite may be added if the tints obtained from the mixture were insufficiently green. A non-aqueous binder such as carbon tetrachloride, dry acetone, anhydrous methyl or ethyl alcohol or a mixture of these may be used.
Patent GB-870906-A (GB)
Title: Improvements in or relating to electrical switching devices
IPC: H01H51/27
Filed: 1960-02-23
Abstract: 870,906. Electromagnetic relays. WESTERN ELECTRIC CO. Inc. Feb. 23, 1960 [July 1, 1959 (3)], No. 6318/60. Class 38 (5). A magnetic member which has two stable remanent magnetization states in the first of which flux flows through magnetic switching means whereas in the second flux is diverted from the switching means. As shown in Fig. 2, the magnetic member 1, preferably of ferrite, is slotted and fitted with magnetic end caps 3 which support and enclose the ends of a sealed magnetic reed contact device 4. When the remanent magnetism of the areas on each side of the slot in the member 1 is in the same direction (Fig. 1B) opposite poles are produced at the ends and the flux passes through the device 4. When the areas are magnetized in opposite directions (Fig. 1A) no flux passes through the contact device 4. Current pulses in the wires 6 . . . 9 effect the reversals of polarity. The pulses may be of very short duration since they are only required to reverse the remanent magnetism, the consequent switching being effected by the remanent magnetism. In Fig. 3 (not shown), the contact device is supported between end caps in the gap between two parallel ferrite members, each of which is surrounded by two windings, it being necessary to pulse both windings to reverse the remanent magnetism. In Fig. 4 two ferrite members 20, 21 and two contact devices 24 are supported between discs 22, 23 of fine magnetic particles suspended in a plastic binder. Coil 26 surrounds both members 20, 21 and coil 27 surrounds only the member 21, the arrangement being such that the remanent magnetization state of member 20 remains unchanged during operation. In Fig. 5 a ferrite bar 31 has two spaced windings 32, 33 and if these windings have been energized to produce remanent magnetism in the same direction the flux will pass through the contact devices 34. If the remanent magnetism is in opposite directions flux passes from the centre of the bar 31 to the magnetic supports 35 without energizing the devices 34. The bar 31 may have projections at its centre to reduce the reluctance of the latter flux path, Fig. 7 (not shown). In Fig. 8, a tubular ferrite member 41 engages two magnetic caps 45 supporting the contact device 42. A current pulse of either polarity in a coil 46 produces remanent magnetism along the tube to operate the contact device but a current pulse of either polarity along conductor 47 produces a circular magnetization of the tube 41 with no flux in the contact device 42. In all embodiments two windings may be provided for each remanent magnetic path and both must be pulsed to effect operation.
Patent GB-953614-A (GB)
Title: Improvements in or relating to electric storage battery charging apparatus and systems using such apparatus
IPC: H02J7/14
Filed: 1962-02-19
Abstract: 953,614. Battery charging arrangements. MODERN TELEPHONES (GREAT BRITAIN) Ltd., and M. MILLETT. Feb. 14, 1963 [Feb. 19, 1962], No. 6330/62. Heading H2H. [Also in Division G4] A circuit for indicating whether charging current is being fed to a battery 15 comprises a lamp 23 which is illuminated through a transistor 22 rendered conductive by the potential across a resistor 16. The arrangement may be applied to the personal radio receivers of a paging system to indicate whether the receiver batteries are on charge by using the lamp or an electromagnetic indicator to show whether a person is in or out.
Patent GB-230493-A (GB)
Title: Improvements relating to hydraulic tipping mechanism for vehicles
IPC: B61D9/02
Filed: 1925-03-09
Abstract: 230,493. Wirz, E. March 10, 1924, [Convention date]. Apparatus. - In hydraulic tipping mechanism for vehicles in which the hydraulic cylinder has a ball K, Fig. 3, working in a spherical socket, pressure liquid is supplied through a pipe a, one end of which is rotatably mounted in a socket C carried by the cylinder or ball, and the other end of which is rotatably mounted in a socket B, Fig. 1, carried by the stationary pipe b, the two pivot axes being perpendicular and intersecting at the centre of the ball. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a statement that one joint may be dispensed with when the cylinder has to move in one plane only. This subjectmatter does not appear in the Specification as accepted.
Patent GB-454073-A (GB)
Title: Improvements in and relating to presses for treating fibrous material
IPC: B27N3/20
Filed: 1936-03-03
Abstract: 454,073. Moulding pulp. SKOLDKVIST, H. N., Rundviksverken, Sweden. March 3, 1936, No. 6473. [Class 87 (ii)] In a press for forming fibrous material into boards having a number of relatively movable platens 1 arranged one above the other and heated by steam and a movable wire screen 4 for introducing material between the platens, at least one of each pair of co-operating platens is provided with a detachable patterning plate 3 having projections or depressions to pattern the finished board. The plates 3 are supported by guide members 2. The wire screen may be endless, as shown, or may be a single length wound on rollers. Longitudinal grooves may be formed on the boards which are afterwards divided along the grooves to produce boards with bevelled edges.
Patent GB-720794-A (GB)
Title: Apparatus for vaccinating by scarification
IPC: A61B17/20
Filed: 1953-03-09
Abstract: 720,794. Vaccinating-apparatus. GUYE, G. March 9, 1953 [Oct. 14, 1952], No. 6486/53. Class 81 (2). An apparatus for vaccinating by scarification comprises a sharp interchangeable member carried by a support rotatably mounted in a circular case and projecting through the wall to be applied to the subject's skin, means to adjust. the cutting depth, means to adjust the angular travel of the support according to the length of the scarification to be effected, and spring means to bring back the support and member brusquely to its initial position, in order to effect the scarification. As shown the apparatus comprises a case 5 in which is rotatably mounted a disc 4 carrying, in a radial groove, a four pointed blade 1 the points or teeth 2 projecting through arcuately shaped openings 7 provided in the covering member 6 of the case. The disc is screwed on to an arbor 8 which is provided with a handle 9 for turning the disc whilst winding up a spring 10 anchored at one end to the case 5 and at the other to the disc 4. Four notches 11, 12, 13, 14, are provided at the periphery of the disc these co-operating with a catch 15 provided with a control lever 16 oscillating on an arbor 67 and acted upon by a spring 18. To each of the notches 11, 12, 13, 14, corresponds a determined angular position of the blade 1, starting from which the teeth of this blade can effect scarifications of a determined length. The covering member 6 bears on its outer face centimetric indications "11", "16", "21", "26" which correspond to the four angular positions of the blade. The depth of cut is varied by enabling the disc 4 to slide longitudinally in the case and for this purpose the arbor 8 is surrounded by a threaded sleeve 25 which is screwed into a tapped hole 26 of the case and is provided at one end with a milled head 27 and at the other with a bushing 28 which can slide in a boring 29 in the case. The head 27 bears a graduation which, in conjunction with a mark on the case, indicates the depth of cut. A lock nut 30 is provided. In operation the disc is turned by the handle to the desired position "11", "16", "21" or "26" the catch 15 snapping into the appropriate notch. The depth of cut is adjusted by means of the head 27 and the apparatus is placed against the patient, the control lever 16 pressed, and the disc and blade released to enable them to return to their initial position brusquely the points 2 thereby producing in the skin the desired scarification.
Patent GB-549524-A (GB)
Title: Colour stabilisers for oils
IPC: C10G29/20
Filed: 1941-05-21
Abstract: 549,524. Stabilizing viscous mineral oils. DU PONT DE NEMOURS & CO., E. I. and DIETRICH, M. A. May 21, 1941, No. 6512. [Class 91] [Also in Group IV] Viscous petroleum oils are stabilized against deterioration in colour by the addition thereto of a small proportion of an oil-soluble ester or amide of an N:N<SP>1</SP>-alkylene-di(#-amino-crotonic) acid free of acidic substituents. The group of compounds may cover compounds wherein the #-amino-crotonic acid is replaced by a homologue, i.e. the product obtained by condensing a #-ketonic acid with an amine; and also compounds wherein the divalent aliphatic alkylene radical is heterocyclic or acyclic. The ester and amide groups may have any hydrocarbon radical bonded to the oxygen or nitrogen thereof such as ethyl, tert butyl, dimethyl ethyl methyl, allyl or phenyl. Particular compounds specified comprise: N: N<SP>1</SP> - ethylene - di(ethyl - # - amino - crotonate), N:N<SP>1</SP>-hexamethylene-di(ethyl-#-amino-crotonate), N :N' - ethylene - di(# - amino - crotonanilide), N:N<SP>1</SP>- (##<SP>1</SP> - - 1:4 - diethylphenylene) - di-(ethyl-#- amino-crotonate), N:N'-(3:6 dioxa-octamethylene) - di - (ethyl # - amino - crotonate), N:N'- (2 hydroxy - trimethylene) - di - (ethyl # - amino - crotonate), N:N<SP>1</SP>-(##<SP>1</SP>-diethylaminoethylene)-di- (ethyl #-amino-crotonate), N:N'-propylene-di- (ethyl #-amino-crotonate), and N:N<SP>1</SP>-propylenedi-(butyl #-amino-crotonate). Full details are given of the preparation of each of these compounds by the reaction of the ester or amide of the required #-ketonic acid and the required amine; thus N:N<SP>1</SP>-hexamethylene-di(ethyl-#- amino-crotonate) is prepared by the condensation of ethyl acetoacetate with hexamethylenediamine, and N : N<SP>1</SP>-ethylene-di(#-amino-crotonanilide) by the condensation of acetoacetanilide with ethylenediamine. The pure compounds may be used or admixtures thereof, and in amount ranging from 0.02 to 2.0 per cent. by weight. The stabilizers may be produced in situ by adding the reactants to the oils. They may be employed with other addition agents such as pour-point depressants, corrosion inhibitors, gum solvents, viscosity index improvers, and materials to increase lubricity.
Patent GB-1019363-A (GB)
Title: Hydrazine derivatives
Inventor: MARSHALL PHILIP GUY
Filed: 1960-11-23
Abstract: The invention comprises hydrazines of the formula R.NHNHCOOR1 wherein R is an alicyclic ring bearing at least a fused aromatic nucleus and joined to the nitrogen at the 2-position and R1 is an alkyl radical, and the preparation thereof by reducing the corresponding hydrazone. The process may be combined with one wherein the hydrazone is prepared from an appropriate ketone and a hydrazine carboxylate. Pharmaceutical compositions comprise the compounds of the invention together with an appropriate carrier, and are preferably in the form of tablets and capsules.  The compositions inhibit monoamine oxidase.
Patent GB-115615-A (GB)
Title: Improvements in or relating to Hand Tools for Cutting Off the Sections or Coupons of Rotation Papers.
Inventor: AUDSLEY GEORGE CATHERALL
IPC: B26B13/06
Filed: 1918-04-17
Abstract: 115,615. Audsley, G. C. April 17, 1918. Cutters.-A tool for cutting-off coupons from ration cards comprises plier-like handles, the upper jaw of which has cutting-edges at rightangles, and the lower jaw an opening through which the cut-off portions pase into a receptacle connected in a readily detachable manner to the lower jaw. As shown in Fig. 2, the upper jaw A has a cutter B having one or two pairs of cutting-edges at right-angles to each other which cooperates with an opening D in the lower jaw C. An opening-spring F, and a hook G for retaining the jaws closed are provided. A sheet-metal receptacle E, Figs. 3 and 5, to receive the cuttings has flanges e engaging slots I in the lower jaw, the upper parts e<2> of the corners being left open to provide a springy engagement. A sliding cover e<3> may be provided for the receptacle when detached from the cutters. 1'he manner of using the tool for cutting oft the coupons, or half coupons, is indicated in Fig. 10.
Patent GB-566107-A (GB)
Title: Improvements in photographic sensitive emulsions
IPC: G03C1/025
Filed: 1943-03-08
Abstract: 566,107. Photographic emulsions. KODAK, Ltd., TEAL, E. F., and DAVEY, E. P. March 8, 1943, No. 6688/44. Divided out of Complete Specification of 555,949. [Class 98 (ii)] A finished (i.e. washed and digested) gelatinosilver halide emulsion is made in a dry or substantially dry form by allowing the aqueous emulsion to set and shredding it, and then removing most of the water from the shreds by treatment, including repeated treatment, with a volatile water-extracting liquid (e.g. acetone or alcohol), followed by air drying,; e.g. on trays in a current of air or in a drying cupboard. Potassium bromide may be added to the waterextracting liquid or an extra amount may be added initially to the original emulsion. Specification 22426/10, [Class 98 (ii)], is referred to.
Patent GB-1292547-A (GB)
Title: Non-return valve
Inventor: AGEEV NIKOLAI IVANOVICH
IPC: F16K17/12
Filed: 1970-02-12
Abstract: 1292547 Valves VSESOJUZNY TEPLOTEKHNICHESKY NAUCHNO-ISSLEDOVATELSKY INSTITUT IMENI F E DZERZHINSKOGO 12 Feb 1970 6736/70 Heading F2V A non-return valve comprises a body with a seat 5; a two-arm lever 15 whose support 13 is mounted on the body; a closure element 26; a member 17 on which the closure element 26 is mounted, the member 17 being attached to one end of the two-arm lever 15; a counterweight mounted on the other arm of the twoarm lever; characterized in that the element 26 is shaped as a truncated cone with the larger base directed towards the seat. The valve body carries two pins 13 that act as the support. The counterweight is adjustable axially and radially of the lever 15 by bolts 23 and 25 respectively. The member 17 is pivotable on a bar 18 and held relative to the lever 15 by screws 20. A ball joint can be provided instead of the bar 18. When the valve is closed, the resilience of the closure element 26 allows the latter to acquire a flat disc shape (Fig. 2, not shown).
Patent GB-301681-A (GB)
Title: Improvements in gas ovens
IPC: F24C15/32
Filed: 1928-03-03
Abstract: 301,681. Scott, F. S. March 3, 1928. Gas cooking-stoves; air supply for combustion. -In a gas oven having a door 2 at the front and a burner 4 at the rear lower corner, waste gas openings 6 are arranged adjacent the front and below the level of the door opening, the gases passing by substantially horizontal passages 7 to a vent-pipe 8 at the rear. In the construction shown the openings 6'communicate with a flue 5 extending across the front of the stove and leading to two lateral flues 7 provided with sliding dampers 11, and the vent-pipe 8 at the rear is of Y or T form and provided with a damper 9. Air for combustion is heated in a jacket space 23 around the pipe 8 and passes through an opening 25 to the space adjacent the burner. The flue 5 may be replaced by two pockets, one at each front cover of the oven, connected to the flues 7 and communicating by one or more openings with the interior of the oven. In a modification, the flues 7 are replaced by a single centrally-arranged flue with a funnel-shaped intake portion, the larger end of which forms the waste gas opening at the front of the oven bottom. In a further modification, shown in Fig. 7, the waste gas flue is formed below a removable bottom plate 17, having openings 19 for the passage of the gases. Air for combustion is heated in a chamber 23 formed between the vent-pipe 22 and the rear wall of the oven.
Patent GB-1122425-A (GB)
Title: Locks and keys
Inventor: TAYLOR JACK WILLIAM
IPC: E05B35/00
Filed: 1965-02-17
Abstract: 1,122,425. Locks; keys. INGERSOLL LOCKS Ltd. 16 May, 1966 [17 Feb., 1965], No. 6800/65. Heading E2A. Key-bearing holes on opposite sides of a lock casing are of different effective diameter and the key is formed with portions of diameters corresponding with those of the keybearing holes, the key shank being formed with a boss having a diameter greater than the effective diameter of each bearing hole, which boss provides a shoulder which by its engagement with the casing or other fixed part, limits key-entry into the casing, the boss and the smaller diameter key-bearing hole being so shaped as to permit the passage of the boss therethrough when the key is introduced into the casing from the side having the smaller diameter bearing hole. As shown, a double-bitted key includes part circular portions 7, 8 of which the portion 8 constitutes the boss which permit the key to be inserted in key holes 10 and 12 of different diameters at opposite sides of a lock casing, Figs. 1 and 2 (not shown), so that one or the other of the key bits is operable according to the side of the lock in which the key is inserted. In other arrangements, Figs. 5 and 6 (not shown) for single bitted keys, the key is insertable at only one side of the lock casing and in a further arrangement, Fig. 7 (not shown), for a double bitted key the key is carried in the casing in a rotatable sleeve.
Patent GB-1248306-A (GB)
Title: Reduction of high purity metal oxide particles
IPC: C22B5/14
Filed: 1969-02-07
Abstract: 1,248,306. Producing high purity Ni or Co particles. FALCONBRIDGE NICKEL MINES Ltd. Feb. 7, 1969 [March 14, 1968], No.6804/69. Heading C7D. High purity Ni or Co oxide granules, having smooth rounded surfaces, are mixed with inert refractory particles, having smaller size than the oxide, in a concentration less than the total impurity concentration of the oxide granules but at least 30 ppm, and the particles are spread over the surface of the granules (e. g. by tumbling in a rotary furnace) prior to high temperature gaseous reduction of the granules, whereby intergranular sintering of the metal product is prevented and a high purity product is obtained. The refractory particles may be one or more of the oxides of Ca, Mg, Si and Al, feldspar or magnesium silicate, and the reducing gas may be hydrogen. The preferred size of the initial oxide particles is -8 + 100 Tyler mesh.
Patent GB-745540-A (GB)
Title: Improvements in or relating to lamp standards or lamp posts for use in street, road or similar lighting
IPC: E04H12/04
Filed: 1953-03-12
Abstract: 745,540. Wooden posts. EBDON; T. J., EBDON, T. D., and EBDON, D. J. March 12, 1954 [March 12,1953], No. 6810/53. Class 20(1). A post 6, e.g. a lamp standard, is formed by a plurality of wood boards 10, 11 extending lengthwise of the post and secured along their meeting edges by a waterproof adhesive, e.g. a synthetic resin cement, the base of the post being covered by a sheet 14 of bitumen the meeting edges of which are melted by heat to form a joint. The sheet 14 extends about 6 inches further up the post than the intended ground level, and the upper edge is melted to adhere to the wood. The post may be formed of upwardly tapered boards 10 and intervening boards 11 with parallel edges, meeting edges being bevelled and having strengthening strips 12. A wood plug closes the bottom of the post and a wood cap 7 closes the top, the cap carrying a plate 19 having a spigot 8 to receive a lamp. Alternatively the cap 7 may form or carry a projecting arm for a lamp. A removable wooden cover 22 seating against a ring 23 permits access to a time switch or other electrical equipment, and ventilation holes, as 18, may be formed top and bottom. The post may be of any cross section 3, 4, 5, 6 and 8-sided posts being mentioned.
Patent GB-622080-A (GB)
Title: Improvements relating to hard-metal faced drilling bits, lathe tools, cutters and like tools
IPC: B23B27/00
Filed: 1947-03-11
Abstract: 622,080. Grinding and polishing. SIEMENS-SCHUCKERT (GREAT BRITAIN), Ltd., and FLAX, S. March 11, 1947, No. 6829. [Class 60] [Also in Group XXII] Drilling-bits, lathe tools, cutters, and like hard-metal faced tools carry on or in their surfaces an indelible marking or markings indicating the edge contour to which, in a regrinding operation, the tools are to be ground. The lathe tool shown is provided with markings 18 to preserve the clearance angle y, while the markings 17 preserve the position of the point and the cutting angles a and # to which the cutting edge is ground. Further markings 19 may be provided to assist location of the point. The markings may be applied to the surface by printing, etching, stamping, engraving, moulding or like operation.
Patent GB-1416796-A (GB)
Title: Driving and braking device for a sliding door
IPC: E05F15/60
Filed: 1973-02-12
Abstract: 1416796 Sliding door operating appliances SIEMENS AG 12 Feb 1973 [10 Feb 1972] 6855/73 Heading E2M [Also in Division H2] In a driving and braking device for operating a sliding door 1, the door is attached to a rail 2 forming the first element of a linear electric motor which co-operates with the stator element 3 of the linear electric motor, the stator element 3 being provided with a three-phase winding 4 for generating a linearly moving magnetic field, the stator element further comprising a D.C. braking winding 5 for exerting a braking force on the rail 2. As illustrated in Fig. 4, the rail may be formed with a triangular shaped flux-return member 7 co-operating with a triangular-shaped member 9 on the stator element 3 to effect electromagnetic locking of the door 1. The coil width S w  of the D.C. braking winding may have twice (or a multiple thereof) the pole pitch of the three-phase winding 4.