baber/WOPTO huggingface dataset:
Patent GB-425306-A (GB)
Title: Improvements in and relating to filters
IPC: B01D35/16
Filed: 1933-09-06
Abstract: 425,306. Filters. ZWICKY, J., Beckyngton, Farnham Royal, Buckinghamshire. Sept. 6, 1933, No. 24718. [Class 46] A cylindrical gauze filter-element 9, Fig. 1, on a frame closed at one end by a disc 10 and having a ring 11 at the other end is mounted to move as a piston over a cylindrical wall 13 which forms part of a casting closing the upper end of the filter casing 1. The liquid flows from an inlet 3 over the upper end of a funnel 16, and inwardly through the element 9 to an outlet 4. When, due to clogging of the elements, the differential pressure of the liquid between the two sides of the element rises sufficiently the element is pushed slowly upwardly against the force of springs 22, on telescoping arms pivoted on the casting cover and connected to a collar 50 on the piston rod 14, so that the cams are forced past their horizontal dead centre position, and opening out under the force of the springs lift the strainer rapidly to the position shown in Fig. 1. The upward movement causes a rapid outward flow of liquid from within the filter element and matter collected thereon is detached and carried down through a valve 19, normally pressed by a spring 51 against the disc 10 but opened by the pressure of the reverse flow. The solid matter is carried through a spring- controlled valve 18 at the bottom of the funnel 16 into the space beneath a conical baffle 17, and discharged through a manually operated plug 25 or an automatically-operated valve. In the form shown in Fig. 1 the apparatus is re-set manually by pushing a knob 24 on the rod 14 so that the springs 22 are brought below their horizontal position. The telescoping links in expanding may close the circuit of a bell or visual signal to indicate that resetting is necessary. Fig. 3 shows a pneumatic re-setting device, suitable for use in connection with internal-combustion engines where gas under pressure is available. In this device the rod 14 is pushed down by the hollow rod 28 of a piston 27 moving in a cylinder 26. When the springs 22 rise to their highest position, a valve 34 is opened by a rod 32 within the hollow piston and gas admittedfroma a connection 35 to the upper end of the cylinder 26, so that the piston 27 moves downward. When it reaches its lowest position and the cleansing device is re-set an exhaust connection 37 is opened so that the gas escapes and the piston 27 rises again to the position shown. A reciprocating pump for supplying gas to the connection 35 may be driven by a turbine which is itself driven by the filtrate as it passes from the filter. It is stated that the re-setting device may be operated by suction instead of pressure. Specification 373,717 is referred to.
Patent GB-424168-A (GB)
Title: Improvements relating to automatic operators for use in the manufacture of water gas and other cyclical processes
IPC: C10J3/24
Filed: 1934-08-29
Abstract: 424,168. Fluid-actuated valves. HUMPHREYS & GLASGOW, Ltd., and GRIGGS, A. R., Humglas House, Carlisle Place, Victoria Street, London. Aug. 29, 1934, No. 24874. [Class 135] [See also Group XII] Valves controlled by pilot or relay valves.- Apparatus for use with plant operating on a cycle, such as a water-gas set, the valves of which are controlled by automatic operation, comprises a device which arrests the cycle of operation, gives a signal, or shuts down the plant should one or more of the valves fail to function properly. This device includes the use of a pipe providing a fluid connection between two checking valves, one operated by the valve mechanism, and the other by a control element of the automatic operator, drop of pressure in the pipe actuating shut-down mechanism of the plant. The apparatus comprises a valve a and cams b, c associated with the automatic operator. A checking valve d is held closed only when the valve a has completed either its closing or opening movement, and e is a valve opened by one of the cams b, c only at those periods when the valve a should have properly opened and closed. A pipe f communicating with a source g of fluid under pressure connects valves d and e, the valve d being held on its seat by a lever k operated by tappets a<2> on the actuating rod a<1> of the valve a. Should the valve a fail to function, and to hold the valve d on its seat when the valve e is opened, the pressure fluid will escape through pipe f and the loss of pressure will be communicated by a pipe f<2> to a diaphragm h, movement of which operates lever n and trigger q of a shut-down mechanism of the plant. This mechanism may be linked to a cock r to cut off the fluid supply.
Patent GB-931189-A (GB)
Title: Improvements in polycarbonates
IPC: C07C37/20
Filed: 1960-07-18
Abstract: The invention comprises (i) linear polycarbonates containing recurring units of Formula (A) <FORM:0931189/IV(a)/1> wherein R is 1- or 2-naphthyl optionally substituted in the remaining 2- or 1-position with Cl or F and (ii) linear polycarbonate block copolymers consisting of blocks of recurring units of Formula (B) <FORM:0931189/IV(a)/2> and blocks of recurring units of Formula (A). Polycarbonate (i) are prepared from the corresponding bisphenol (see Group IV(b)) and phosgene.  Block copolymers (ii) are made by forming separately linear polymers containing respectively units (A) and (B) and then copolymerizing.  Example 1 describes the preparation of type (i) polymer, in which R is 2-naphthyl, in presence of NaOH and n-Bu3N.  Example 2 describes the preparation of type (ii) block copolymer, the separate polymers being prepared from the respective bisphenols (R is 2-naphthyl), phosgene and NaOH and then being combined in presence of n-Bu3N.  The polymers may be made into film or shaped articles.ALSO:The invention comprises bisphenols of formula <FORM:0931189/IV(a)/1> wherein R is 1- or 2-naphthyl-optionally substituted in the remaining 2- or 1-position with Cl or F, and a method of making them by condensing a naphthaldehyde with phenol in the presence of HCl and a catalyst.  The preparation of bis(4-hydroxyphenyl)-2-naphthyl methane from 2-naphthaldehyde and phenol in presence of HCl and mercaptopropionic acid is exemplified.
Patent GB-617635-A (GB)
Title: Improvements in or relating to soaking pit gover carriage
IPC: C21D9/70
Filed: 1946-08-21
Abstract: 617,635. Operating soaking-pit covers. BROSIUS, E. E. Aug. 21, 1946. No. 24904. Convention date; Sept. 1, 1945. [Class 65 (i)] [Also in Groups XII and XXX] The cover 34 of a soaking pit 2 is supported by a carriage 5 running on rails 4, the carriage having means for lifting and lowering the cover and for moving itself along the rails, and at least one of these movements being performed by fluidpressure. , In the arrangement shown, the carriage 5 has mounted on it a reversible hydraulic motor 14 and a pivoted cylinder 21, both fed through individual magnetic reversing valves with oil under pressure by a pump driven by an electric motor ; the hydraulic motor 14 drives one axle 7 of the carriage 5 through a reducing gear 17 and sprocket chain 22. The piston-rod 26 of the cylinder 21 is pivoted to a yoke 31 which is pivotally mounted on the other axle 7<1> of the carriage and which supports one corner of the cover 34 by a link 32; a sleeve surrounding the axle 7<1> connects the yoke 31 to a similar yoke supporting the other corner of that end of the cover in the same way, and-each of these yokes is connected by a rod 41 to one of a pair of yokes 45 on the other axle 7 so that all four corners of the cover move in unison.
Patent GB-733563-A (GB)
Title: Improvements in the construction of fans or impellers
Inventor: COPE FREDERICK CHARLES
IPC: F04D29/28
Filed: 1952-10-04
Abstract: 733,563. Centrifugal fans. INDUSTRIAL FAN & HEATER CO., Ltd. Oct. 5, 1953 [Oct. 4, 1952], No. 24925/52. Class 110 (1). In a fan impeller having substantially radial blades 8 mounted on and secured to a hub disc 7, each blade has a slot 9 of a width less than the thickness of the disc, the slot being slid radially on to the disc (the left-hand blade is shown only partly assembled) so that the metal at an edge of the slot engages in a radial groove 6. Each blade 8 has a stiffening web 10 which may be made separately and secured to the blade ; alternatively, the blades may be stamped with integral webs from T-section material. The blades 8 are welded at 13 to the ungrooved side only of the disc 7 or to both sides. The webs 10 are welded to the periphery of the disc 7. A hub boss 11 is welded to the disc 7. The grooves 6 may be formed in both faces of the disc 7.
Patent GB-630685-A (GB)
Title: Improvements in or relating to radio frequency navigation systems
IPC: G01S19/25
Filed: 1946-08-21
Abstract: 630,685. Calculating-apparatus. O'BRIEN, W. J. Aug. 21, 1946, No. 24986. Convention date, Aug. 27, 1945. [Class 106 (i)] [Also in Group XL (c)] A simple calculator for assisting in the identification of one " lane " out of 24 in the radio-navigation system (see Group XL (c)) comprises three independent rotatable discs 11, 15 and 17 mounted over a base disc 9 divided into 24 equal parts representing the 24 " lanes " out of which one is to be identified. Regarding the 24 lanes as a unit distance, the navigation system also provides information as to the position in the respective lanes of three alternative transmissions in which 8, 6 and 9 lanes respectively correspond to the same unit distance. This information is set up on the three inner discs divided into 8, 6 and 9 equal parts respectively; the lane fractions on the respective transmissions being placed opposite the zero mark 19. The calculator is then inspected to see where division lines on the three discs coincide (12a, 16a, 18a) and this will be opposite the part of the base disc corresponding to the lane to be identified.
Patent GB-861767-A (GB)
Title: Improvements in means for guarding the latches of latch needles in circular knittingmachines
Inventor: BURDETT HENRY SIDNEY
IPC: D04B15/08
Filed: 1958-08-05
Abstract: 861,767. Knitting-machines. STIBBE & CO. Ltd., G. July 27, 1959 [Aug. 5, 1958], No. 25028/58. Class 74 (2). An individual latch guard 8 is associated with each latch needle 4 of a superposed cylinder rib machine having single - ended needles and is permanently retained in alignment with its needle. The tricks in each cylinder opposite the needle containing tricks of the opposite cylinder receive the latch guards which have a latch covering blade 8b, a shank and an operating butt 8a. The butts 8a are engaged in a camway formed between cams surrounding the needle cylinders and so operate the guards that whenever the needles are advanced to receive yarn the corresponding latch guards are advanced in front of the open latches of the needles and thereby retain the latches open. The yarn may be fed with the guards in this position and subsequently received in the hooks of the needles as the needles commence their draw and the guards retracted.
Patent GB-1299920-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/56
Filed: 1970-05-26
Abstract: 1299920 Sliding clasp fasteners LIGHTNING FASTENERS Ltd 26 May 1970 [4 April 1970] 25064/70 Heading E2S [Also in Division D1] The subject matter is substantially identical to that of Specification number 1299913 but the claims are directed to a sliding clasp fastener comprising two stringer tapes of waled structure with two rows 3 of interlocking elements attached to the respective tapes, the tapes being formed of substantially longitudinally running wale-forming threads with holes provided in the tapes for insertion of sewing needles. The rows of interlocking elements incorporate supporting strands 10 and are stitched by sewing threads 2 passing through the inter-wale grooves 9. The two fastener tapes 1 are connected by a connecting thread 7 which is severed after attachment of the interlocking elements.
Patent GB-615956-A (GB)
Title: Device for holding safety razor blades when not in use
IPC: A45D27/24
Filed: 1946-08-22
Abstract: 615,956. Razor blade holders. WIGGS, R. P., and HARDING, L. Aug. 22, 1946, No. 25124. [Class 131] [Also in Group XVII] A device for storing a razor blade comprises a pair of spring-pressed jaws s A, B to hold the blade between oiled pads E the jaws being recessed at C to receive the blade and formed with extensions A<1>, B<1> by which the jaws may be opened.
Patent GB-251355-A (GB)
Abstract: 251,355. Simpson, F. Feb. 2, 1925. Moulding celluloid. - The ends of knitting needles or other slender metal rods or tubes coated with soft nonconducting material such as cellulose acetate are heated by being dipped in a solution of cellulose acetate at or about room temperature and then being placed in a mould heated to about 75‹ F. The ends. may be first shaped in a lathe. Specification 185,220, [Class 74 (ii), Knitting &c.], is referred to.
Patent GB-427273-A (GB)
Title: Improvements relating to the wheels of agricultural and like machinery
IPC: B60B15/00
Filed: 1934-02-21
Abstract: 427,273. Vehicle wheels. MORRIS, A., and MORRIS, E. J., Oak Farm, Alsager, Cheshire. Feb. 21, 1934, No. 25290. Divided out of 430,523. [Class 144 (i)] Detachable grippers for agricultural machine and like wheels consist of shoes with pegs engaging holes in the wheel rim, the heads of the grippers being slotted to receive an attachment-band. In the form shown, the grippers have substantially flat heads 1, formed with slots 7 in which an attachment-band 8 is fitted, and square pegs 4 secured in the rim 5 by keys 6. In a modification, the heads of the grippers are of tubular form.
Patent GB-310357-A (GB)
Title: Improvements in or relating to sign boards
IPC: G09F15/00
Filed: 1928-09-03
Abstract: 310,357. Verkehrs - Reklame Akt.- Ges., (Assignees of Oggenfuss & Co., Reklame-Unternehmen). April 24, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Boards for notices. - A panel 2 is subdivided into smaller panels by bars 10 and cross-bars 3 detachably inserted in notches. 9. The sizes of the smaller panels may thus be varied. The notices are displayed on sheets of sizes corresponding to the various panels. The top piece 11 may also bear advertisements.
Patent GB-1219180-A (GB)
Title: Patient monitoring safety system
IPC: A61B5/276
Filed: 1968-11-06
Abstract: 1,219,180. Electro-medical apparatus. BECKMAN INSTRUMENTS Inc. Nov. 6, 1968 [Nov. 20, 1967], No.25347/70. Divided out of 1,219,179. Heading G1N. The description is identical with that of Specification 1, 219,179 but the claims are directed towards the arrangement of the oppositely poled diodes D1, D2, which protects the patient from excessive base currents which would otherwise flow from the terminals 10, 11 in the event of failure of either of the transistors Q 1 , Q 2  .
Patent GB-831086-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor devices
Inventor: LARGE LESLIE NOEL
IPC: H01L23/40
Filed: 1956-08-20
Abstract: 831,086. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. Aug. 19, 1957 [Aug. 20, 1956], No. 25443/56. Drawings to Specification. Class 37. In a method of forming an electrode of a semi-conductor device, a material which consists at least in part of a substance such as indium which is capable of acting as a significant impurity is applied to the surface of the semi-conductor material in the molten state, at the same time forming a bond to a metallic connector positioned adjacent to the said surface. The description and Figures are substantially identical with those of Specification 831,085.
Patent GB-162589-A (GB)
Title: Improved spring for vehicles
IPC: B60G11/02
Filed: 1920-09-03
Abstract: 162,589. Addis, F. H. Sept. 3, 1920. Laminar springs.-In laminated springs of the type in which the leaves have interfitting central downward depressions and are held in position in a buckle between a pin fitting into the depression of the top leaf and the curved inner face of the buckle, the central depressions all have the same curvature as shown, and a space is made in the base of the buckle A to accommodate the depression in the bottom lug, or the buckle is split vertically and spread open.
Patent GB-244229-A (GB)
Title: An improved scooter
IPC: B62K3/00
Filed: 1924-10-27
Abstract: 244,229. Fareso, J. Oct. 27, 1924. Foot cycles or scooters of the folding or non- folding type. are constructed of four strips of metal, two of which form the body A and two the steering-column H, which is united to the body A by an ordinary hinge B, the flanges of which ,are riveted between the strips. In the case of a folding scooter as shown, a single rivet G unites the hinge to the steering-column H and acts as a pivot, so that the scooter can be folded to the position shown in Fig. 3. The scooter is held in the unfolded position by means of a sliding collar C engaging an upwardly-projecting part B<1> of the front flange of the hinge, or, in a modification, by means of a pin or bolt engaging registering holes drilled transversely through the steering-column and the upper part of the front flange of the hinge.
Patent GB-303048-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K27/18
Filed: 1927-09-27
Abstract: 303,048. British Thomson-Houston Co., Ltd., and Dreghorn, H. Sept. 27, 1927. Alternating - current motors.-In an alternating - current commutator motor of the type described in Specification 25358/11, and required to give a continuously variable speed over a stated range and, in addition, a sudden momentary change to another speed, such as is demanded in the " narrowing " operations of knitting machines, the continuous speed variation is obtained by displacing the brushes, and the sudden change by means of a change-over switch between the secondary windings and the brushes so arranged as to disconnect the windings and short-circuit them. Fig. 1 shows the connections given in one position of the switch whereby any speed within the predetermined range may be obtained by altering the distance S between the brush pairs. In the other position, the secondary windings are short-circuited on themselves, as in Fig. 2. The switch may be operated automatically by the knitting machine.
Patent GB-493662-A (GB)
Title: Mechanical adjustable whistle
IPC: G10D7/02
Filed: 1937-09-20
Abstract: 493,662. Musical whistles. RUHLMANN, T. Sept. 20, 1937, No. 25514. Convention date, Nov. 19, 1936. [Class 88 (ii)] In a musical whistle, the effective volume of the chamber is varied by an organ of the user's mouth whilst playing. In the Figure, the teeth 57 on closing the lower jaw turn a bell-crank of which one arm 30 is shown, the other arm being attached to the end of a band wound on one end of a shaft 22. The band is thus unwound, rotating the shaft 22 and a radial piston 23 carried thereby against spring action to diminish the effective volume between the rotary piston 23 and a fixed partition 25.
Patent GB-887947-A (GB)
Title: Apparatus for use with milking machines for measuring and indicating milk yield
IPC: A01J5/04
Filed: 1959-08-13
Abstract: 887,947. Liquid meters. HUTCHINGS, W. D. J. May 9, 1960 [Aug. 13, 1959], No. 25748/61. Divided out of 887,946. Drawings to Specification. Class 69 (1). This Specification which was divided on Provisional Specification 887,946, claims apparatus for measuring and indicating individual milk yield comprising an upright hollow vessel having a milk inlet in its upper part and a valvecontrolled outlet at its bottom, and means for collecting in and releasing from said vessel constantly equal portions of the total milk yield and of such volume that the pressure of the liquid column automatically opens the said valve-controlled milk outlet. The Specification describes the same apparatus as is described in Specification 887,946 in this Group.
Patent GB-1185543-A (GB)
Title: Improvements in or relating to Rollers Straightening Apparatus
IPC: B21D3/05
Filed: 1967-06-05
Abstract: 1,185,543. Straightening. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. 5 June, 1967 [4 June, 1966; 2 Sept., 1966], No. 25799/67. Heading B3E. A roller straightening apparatus has the straightening roller mounted on shafts journalled in separate frames, a first group of which support the lower rollers and are slidable along ways arranged in a machine bed parallel to the direction of travel of a workpiece, and a second group of which support the upper rollers and are slidable in ways arranged on the first group of frames, on that side of the first group which is remote from the machine bed. The apparatus comprises a bed 1 on which the frames 3, which support the lower rolls are mounted. The middle frame 22 is fixed and the outer frames are slidable along the bed. The slidable frames are retained by angle-section strips 2. A shaft 21 is journalled in the middle frame and has threaded portions 25 and 26 at each end which engage nuts secured to the sliding frames. The pitch of the thread on the outer parts 26 is twice that of the inner parts 25 so that the distances between the frames remains equal when they are moved. The lower straightener rolls 6 are mounted on shafts 5 which are adjusted vertically in the frames by screw jacks 43, 44 driven by a common shaft 41 and a motor 40. The upper straightener rolls 10 are mounted on shafts 9 which are journalled in the upper frames 8, which span the space between adjacent lower frames. The upper frames 8 are slidable on the lower units and are retained against upward movement by inter-locking formations comprising lateral extensions on the upper frames and channel section strips 15, 16, 17. The upper frames are guided to prevent canting by two parallel rods 29, 30 and the lower frames are guided by a key 20 engaging in corresponding keyways in the bed and the slidable lower frames. The upper frames are moved along the bed by rotation of the spindles 29 and 30 which have threaded portions 31 to 34 engaged in nuts secured to the frames. The pitch of the outer screw-threaded portions is twice the pitch of the inner portions. Both the upper and lower traversing spindles are driven by gearing from a motor 24. In a modification the lower frames only are driven by a threaded spindle and the upper frames have pinions 69 and 70 which mesh with rack teeth 66, 67 formed on the lower frames. The pinions are connected by two meshing intermediate wheels 71 and 72, so that the pinions 69 and 70 rotate equal amounts in opposite directions and maintain each upper frame centrally over the two lower frames which it spans. The pinions 69 and 70 may be replaced by smooth-faced wheels rolling on smooth surfaces.
Patent GB-248424-A (GB)
Title: Improvements in process for producing sulphur dyestuffs fast to chlorine
IPC: C09B49/12
Filed: 1924-11-01
Abstract: 248,424. Sokal, S., (Kalle & Co., Akt.- Ges.). Nov. 1, 1924. Samples furnished. Sulphuretted dyes are obtained by fusing with polysulphides under pressure mixtures of aminocarbazoles with aromatic dioxy compounds of the benzene, naphthalene, or carbazole series or the corresponding quinones; the aminocarbazoles mav be replaced by compounds transformed by alkali polysulphides into aminocarbazoles, for example, nitro-, nitroso-, or nitronitrosocarbazoles. The products dye cotton in blue to green or black shades from a sodium sulphide bath or a hydrosulphite vat. The following parent materials are specified :-2-aminocarbazole. 3-nitro- and 3: 6- dinitrocarbazole, benzoquinone, hydroquinone, and a dioxy-2 : 3-naphthocarbazole; sodium polysulphide under pressure is specified as the sulphurizing agent.