baber/WOPTO huggingface dataset:
Patent GB-240498-A (GB)
Title: Improvements in free wheel hubs for cycles and the like
IPC: B62L5/04
Filed: 1925-09-29
Abstract: 240,498. Schmidt, H. Sept. 29, 1924, [Convention date]. Back-pedalling brake and free-wheel arrangements.-In a hub in which a radially expansible driving sleeve c, Fig. 1, and a separate braking sleeve fare provided, a hub ring d, Fig. 2, dis. posed between the driving sleeve c and a shoulder b<1> on the screwed driving member b is adapted to retard the movement of the sleeve c so as to ensure its operation by the driving member b. The sleeve c is made in segments which are contracted by a spring ring C', and is internally screw-threaded to engage the member b, the sides of the threads being inclined so as to expand the sleeve c. The ring d is split at d<4>, Fig. 2, and is formed with a projection d<2> which engages a slot in the hub and prevents relative rotation. During forward pedalling, the sleeve c is moved to the right to engage the ring d, and is expanded so as to clutch the driving member b and the hub together. When the driving member b is held stationary, the driving sleeve c is screwed slightly to the left from the coupling position, and is held against rotation by engagement with the brake member e'. Back-pedalling produces further movement to the left of the driving sleeve c, whereby it expands and also ex. pands the brake sleeve f so that both sleeves tend to check rotation of the hub.
Patent GB-1235587-A (GB)
Title: Microscope and slide combination
IPC: G02B21/34
Filed: 1969-05-13
Abstract: 1,235,587. Microscope slides. AEROJET-GENERAL CORP. May 13, 1969 [May 27, 1968], No.24247/69. Heading G2J. A microscope slide 10, constructed of opaque plastics material, has a recessed aperture 20 to which a cover plate 26 is bonded through contact with non-hardening cement spots in pits on the recess shoulder. A specimen 60 in immersion fluid 64 adheres to the lower surface of the cover plate and is illuminated through the sub-stage lens 48, spacing pins 66 projecting therefrom keeping the lower surface of the cover plate at the desired focusing distance from the lens. The aperture 20 allows close approach of the objective lens 46. The arrangement obviates any need for refocusing the sub-stage lens on successive slides. In an alternative embodiment, Fig. 8 (not shown) the side wall of the recess is formed of two parts, one vertical (33a) and one inclined (33b) and the cover plate is inserted into the body (12) by bending the body slightly.
Patent GB-518185-A (GB)
Title: Improvements in or relating to screening apparatus
IPC: B07B1/54
Filed: 1938-08-17
Abstract: 518,185. Screening apparatus. NISSEN, J. E. Aug. 17, 1938, No. 24253. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 20, 1939.] [Class 117] Vibration is imparted to one or more screens freely mounted in a frame by knocking devices disposed about the screen surface which strike but are not secured to the screen surface. In the form shown, the ends of the screen 2 are secured by rods 4 and springs 17 but its sides are unattached except that springs 12 may be provided to prevent sagging in the case of long screens. The frame 1 in which the screen is mounted also carries knockers 31 which are actuated through rods 19 and links 24, 25 from the eccentric 20. Several screens may be superimposed in a common frame.
Patent GB-532274-A (GB)
Title: Improvements in or relating to coupling arrangements for lecher lines
IPC: H01P7/02
Filed: 1939-08-23
Abstract: 532,274. Wireless systems; artificial lines. CARPMAEL, A. (Telefunken Ges. fur Drahtlose Telegraphie.). Aug. 23, 1939, No. 24318. [Classes 40 (iii) and 40 (v)] To avoid asymmetrical capacity effects when one of the two short-circuited elements of a Lecher-wire coupling is earthed, the two limbs 8, 9 of the " primary " line are made hollow, and the two limbs 11, 12 of the " secondary " slide inside them. The variable coupling is then purely inductive, owing to the absence of any static field inside the hollow limbs 8, 9. The " primary " line is short-circuited at 10, and the " secondary " at 13. The arrangement is suitable for coupling an aerial to a high-frequency source or to a receiving set. The " primary " line may be fed with one frequency, and the " secondary " line with a different frequency, the two frequencies being " mixed " in a diode 17. The resultant intermediate frequency is taken off across a condenser 18 by leads 19. Since the condenser is situated at a voltage node one of the leads may be earthed as shown. The intermediate-frequency output is then practically free from any capacity shunt.
Patent GB-1303959-A (GB)
IPC: A47K/
Filed: 1971-04-19
Abstract: 1303959 Shower baths SERVIZIO ACQUISTI SAS DI CRAVERI & C EINKAUFSBERATUNGSERVICE ACHATS 19 April 1971 [27 Feb 1970 13 Jan 1971] 24326/71 Heading A4N [Also in Divisions E2 and H1 A shower head holder comprises a base 1 provided with a ball cap 2 and housing a permanent magnet 3 whereby it is movably secured to a magnetizable metal plate 4 secured or flush fitted to a wall, and a support 6 having a concavity fitting the ball cap is retained thereon by magnet 3 or an additional magnet 9 therein for orientation in any direction. A seating 10 of support 6 removably retains the showerhead 7, and the concave and convex surfaces may be interchanged, Figs.1, 2. In a modification, Fig. 3 (not shown) a base 11 housing a permanent magnet 12 comprising plural parallel elements separated by spacers is secured thereby to a magnetizable metal plate 13 for wall surface, and a member 14 of the base is forked at 15 to retain shower head 16, and extension 18 parallel to the wall is hollowed to receive the showerhead and serves as a handle to facilitate detachment.
Patent GB-1283606-A (GB)
Title: Improved device for piercing, slicing or chipping edible materials
Inventor: MOLDAVSKY JOSEPH
IPC: G03F7/07
Filed: 1969-05-14
Abstract: 1283606 Device for piercing, slicing or chipping food J MOLDAVSKY 3 Oct 1969 [14 May 1969] 24666/69 Heading A4C [Also in Divisions A2 and B4] A hand-held device for piercing, slicing or chipping food consists of a holder 1 having slots 3 in its base through which project comb-like blades 5, the backs of which (6a) Fig.2 (not shown), have side margins (6b) which are held in grooves 4 and which form shoulders (9) held against abutments 10 by the action of a cap 12, said cap being screwed on to holder 1 and having a central tubular boss 15 which acts against a plastics pad 11 bearing against the rear edges (6c) of the blades. The projecting parts of the blades may be covered by a closure 16, preferably of transparent plastics material, and which is adapted to be a push fit on a spigot 16a, up to a shoulder 17. The blades may have different shapes e.g. corrugated, curved in cross-section, the different types of blade being selectively insertable. The plastics pad may have slits or grooves in its surface to engage with the rear edges of the blades. The device may form part of a machine, the holder being reciprocated by a suitable arrangement of levers.
Patent GB-1298945-A (GB)
Title: Improvements in or relating to coupling indication systems
Inventor: DARBYSHIRE KENNETH
IPC: G06F7/02
Filed: 1969-05-15
Abstract: 1298945 Comparators W M PARK & CO FORGEMASTERS Ltd 11 May 1970 [15 May 1969] 24742/69 Heading G4M Outputs 3<SP>1</SP> of a first register 3, e.g. a counter, are compared with complementary outputs 7<SP>1</SP> of a second register, e.g. a thumb wheel selector, by gates 9d, and further gates 9b detect when the outputs 7<SP>1</SP> represent zero, indicating that no number has been set on the thumb wheel selector, to inhibit signals from register 3 and to supply simulated high outputs 3<SP>l</SP>. A further detector circuit provides a signal when outputs 3<SP>1</SP> represent zero, e.g. to indicate that a hose coupling has not been made. The inequality output 9e from the comparator may be used together with the last mentioned signal to operate indicators showing that the coupling has been made correctly or incorrectly. The registers may have more than one decade.
Patent GB-733539-A (GB)
Title: New schiff's bases and their production
IPC: C07D487/04
Filed: 1953-05-01
Abstract: The invention comprises Schiff's bases of the formula <FORM:0733539/IV (b)/1> wherein R1 is hydrogen, alkyl or aralkyl, R2 is hydrogen or alkyl, X is alkyl, alkenyl or a direct carbon-carbon linkage, and F is furyl or nitrofuryl, and salts thereof with non-toxic acids.  The compounds may also exist in the tautomeric form <FORM:0733539/IV (b)/2> They may be prepared by reacting, preferably in a solvent such as an alcohol, an appropriate aminomethyl pyrimidine with a compound yielding the radical F-X-CH<, e.g. aldehydes, their acetals and acyl derivatives and the corresponding dihalides.  The examples describe the preparation of 2,6-dimethyl-21-furyl -(211) - 11,21,31,41 - tetrahydropyrimido-(51,61 : 5,4) - pyrimidine from furfural and 2,6 - dimethyl - 4 - amino - aminomethylpyrimidine dihydrochloride and the analogous compound derived from 5-nitrofurfural.
Patent GB-1130978-A (GB)
Title: Improvements in and relating to containers for pastes and liquids
IPC: B65D75/20
Filed: 1966-06-03
Abstract: 1,130,978. Laminated flat bags; collapsible containers. DIETER SPIESS, [trading as C. F. SPIESS & SOHN]. 3 June, 1966 [3 June, 1965], No. 24800/66. Headings B8D and B8K. [Also in Division B5] A container for pastes or liquids is formed from a 3-ply laminate blank, folded in two with the superimposed edges 4 welded together, or from a pair of such blanks superimposed one on the other and welded at their edges. The laminate consists of a centre layer of metal foil, preferably aluminium, sandwiched between a layer of polypropylene and a layer of polyethylene, either of which can form the inside of the container. A nozzle 6 may be inserted in one of the corners prior to welding; the plastics may be dyed; and the metal may be deposited by vacuum on to one of the plastics layers.
Patent GB-1149752-A (GB)
Title: Improvements in and relating to electrical signalling systems
Inventor: GREGSON BERNARD
IPC: G08C15/12
Filed: 1965-06-11
Abstract: 1,149,752. Selective signalling. F. C. ROBINSON & PARTNERS Ltd. 6 Sept., 1966 [11 June, 1965; 13 Sept., 1965 (2)], Nos. 24852/65, 39035/65 and 39036/65. Heading G4H. In a signalling system a plurality of pairs of transmitter units and receiver units distributed between a local and a remote station are coupled together sequentially over a single channel in a time-division manner and the system is characterized in that (1) at the local station a master clock advances an eight-stage master binary, counter, the eight-bit output from which sequentially readies the units at the local station, (2) at the remote station an eight-stage slave binary counter is advanced by clock-pulses transmitted from the master clock so as to ready sequentially the units at the remote station and (3) synchronization is maintained by causing the master counter to inhibit the transmission to the remote station of the last eight clock-pulses in each cycle of 256 clock-pulses determined by the master counter, which synchronizing gap when detected at the remote station causes the slave counter to be reset to zero in readiness for the start of the next cycle. As described each transmitter can transmit a single bit in accordance with the position of a switch contact and each receiver controls an indicating lamp via a relay which could also control remote machinery. The system described is particularly adapted for use between a mine and the surface in that a plurality of failsafe features are incorporated. Outline circuits of conventional transistor gating and switching units are given.
Patent GB-395891-A (GB)
Title: Improvements in moulding presses
IPC: B29C33/30
Filed: 1932-09-06
Abstract: 395,891. Moulding-presses; stationarymould machines. HYDRAULIK GES., 72, Mulheimerstrasse, Duisburg, Germany. Sept. 6, 1932, No. 24864. Convention date, Sept. 7, 1931. [Class 87 (ii).] A moulding-press is provided with mouldclamping means comprising a pair of oppositelydisposed members moved slidably on a base plate by hydraulic means and adapted to operate a second pair of transverse clamping members at the same time. In the illustrated form a vertical plunger 2 is used to ram material in a mould on the table 4. The mould is clamped between two pairs of opposite members 5, 6. The members 5 are positioned by hydraulic pistons 7, and the members 6 forced into contact with them by wedges 13 actuated in pairs by hydraulic pistons 15. The members 6 are carried by pivoted levers 9 so that on retracting the wedges 13 by the hydraulic cylinders 19, they are positively withdrawn through the inter-action of the wedges 13, 11. The apparatus is stated to be applicable specially to the moulding of synthetic resins.
Patent GB-161606-A (GB)
Title: Improvements in the manufacture of aluminous compounds
IPC: C01F7/748
Filed: 1919-10-11
Abstract: The invention is a modification of the process described in Specification 9148/14 in which impure basic aluminium sulphate solutions, obtained by treating ground aluminous material with sulphuric acid, are freed from iron by agitating with potassium sulphate in the presence of the suspended undissolved material. The modification consists in adding specially-prepared finely-divided insoluble matter called "nucleus material" to the substantiallp clear aluminium-sulphate solution containing a potassium salt, before agitating.  The insoluble silicious residue from the treatment of the finely-ground aluminous material with sulphuric acid, when re-ground in the wet condition is suitable as nucleus material but finely-divided native alunite or other insoluble substances may also be used.  It is added in the form of mud either at once or in portions as the purification proceeds.  A portion of the separated solids may be used as nucleus material, after further regrinding, in the next operation and valuable constituents are recovered from the remainder, for example by treating with sulphuric acid, preferably after the content of precipitated matter has been raised by repeated use. Specifications 3835/82 and 1189/89 are referred to.
Patent GB-679895-A (GB)
Title: Improvements in and relating to animated pictures in musical boxes
IPC: G09F11/23
Filed: 1950-10-12
Abstract: 679,895. Musical boxes. MOSER, E. Oct. 12, 1950. No. 24947/50. Class 88 (i). [Also in Group XVIII] The elements of an animated picture are mounted in a musical-box and comprise at least one picture 19 and a grating 18, the latter having lines thereon transverse to its length, the elements being superimposed one on the other behind an aperture 21 formed in one wall of the musical-box, drive means being provided for connecting the grating to the mechanism of the musical-box to reciprocate it substantially perpendicularly to its lines and means 26 being provided for illuminating the elements 18, 19 from the interior of the musical-box. A cylinder 7 is driven by a spring motor 5 and has pins engaging a musical comb. The cylinder driving shaft is connected to the grating 18 so as to reciprocate it between the picture 19 and the aperture 21 in the box. The grating may be driven by means of a crank-shaft or by a pin engaging a cam 22 (as shown) or cam groove in a plate driven from the cylinder shaft. An electric lamp 26 is provided in the box underneath the picture together with a battery 27 and its switch 28 may have an extension 30 which engages a hole in a disc on the cam shaft so that switching on the lamp allows the motor 5 to drive the cylinder 7 and grating 18. In a modification the cylinder 7 drives the grating directly by means of a face cam on its end or by a cam groove. The grating may be made with grooves of triangular cross section.
Patent GB-1414826-A (GB)
Title: Oil capturing agent and method
IPC: C09K3/32
Filed: 1973-05-24
Abstract: 1414826 Treating oil pollution of water IDEMITSU KOSAN KK 24 May 1973 [25 May 1972] 24952/73 Heading C1C [Also in Division C3] An oil absorbent (used to remove oil from oilcontaminated water) is produced by foaming, by introducing and releasing of a liquified gas under pressure, a resin of the polyethylene series, containing 30 to 80% by weight of at least one inorganic compound selected from calcium sulphate, calcium sulphite or calcium carbonate, based on the total weight of resin and calcium compound to form a foamy substance having a density of 0À06 to 0À10 g./cc. and shaping it into a network structure. In use the adsorbent is piled up to form a multi-layer structure through which the contaminated water is passed, or alternatively the adsorbent is floated on the surface of the contaminated water or dipped in to the water and then taken up therefrom. Reference has been directed by the Comptroller to Specification 1,028,897.
Patent GB-236785-A (GB)
Title: Method of preparing textile yarns and resulting products
IPC: D02G3/40
Filed: 1924-10-21
Abstract: 236,785. Meyer, A. E. Oct. 21, 1924. Addition to 224,875. Yarns and threads; processes. - Uniform detwisting along the length of the yarn is obtained in the process of the parent Specification by subjecting the gummed untwisted yarn to tension white the gum is moist or tacky. Specification 114,833 is referred to.
Patent GB-1127802-A (GB)
Title: Integrated circuit apparatus
Inventor: AVINS JACK
IPC: G05F1/56
Filed: 1965-09-07
Abstract: 1,127,802. Voltage stabilizers. RADIO CORPORATION OF AMERICA. Sept. 7, 1965 [Sept. 14, 1964], No.25028/68. Divided out of 1, 127, 801. Heading G3X. [Also in Division H3] An integrated circuit comprising semi-conductor amplifiers and resistors is biased from a series combination of a resistor 138 (Fig. 2) and a chain of forwardly-biased rectifiers 140-150, so that if the supply voltage varies, the voltage drop across each rectifier will vary proportionately less. Output voltages are taken from the chain either directly as at 168 or through emitterfollowers as at 164 and 166, the low output impedance of the latter improving the regulation further.
Patent GB-224061-A (GB)
Title: Improvements in and connected with electrical resistances
IPC: H01C10/12
Filed: 1923-10-01
Abstract: 224,061. Watkins, A. E. Oct. 8, 1923. Contacting solid resistances.-In a variable high resistance of the carbon pile type, the carbon blocks are separated by spring devices interposed between them. Each block may be separated by a spring from its neighbour; or, as shown, the blocks h may be divided into equal or unequal groups by the interposed springs g. Preferably, the springs are of such a type that increased pressure results in increased area of contact of the springs and blocks. The springs may be formed by cutting discs so as to form spring blades and bending alternate blades out from the discs in opposite directions. As shown, the resistance is mounted in a casing of the kind described in Specification 206,098. Specification 226,861 also is referred to.
Patent GB-407074-A (GB)
Title: Improvements in or relating to electric secondary or storage batteries
IPC: H01M4/70
Filed: 1932-09-08
Abstract: 407,074. Accumulators. DRUMM BATTERY CO., Ltd., DRUMM, J. J., HAGYARD, T., and BARKLIE, R. H. D., Inchicore, Dublin. Sept. 8, 1932, No. 25083. Addition to 365,125, 393,629, and 396,101. [Class 53.] The accumulator described in the parent Specification is provided with a negative electrode consisting of a number of receptacles which collect and retain the dense layers of electrolyte formed by the solution of the zinc. Fig. 1 shows a negative plate consisting of superposed boat-shaped receptacles a clamped in a metal frame b. The receptacles may be formed bv folding metal strips and pressing the folded strips together at intervals as shown at a<1>.
Patent GB-1170271-A (GB)
Title: Polymerisation Process.
Inventor: HAMBLING JAMES KEITH
IPC: C08F10/00
Filed: 1966-01-04
Abstract: 1,170,271. Polymerizing olefins. BRITISH PETROLEUM CO. Ltd. 29 Dec., 1966 [4 Jan., 1966; 6 June, 1966], Nos. 288/66 and 25096/66. Heading C5E. [Also in Division C3] An alpha mono-olefin is polymerized in the presence of a homogeneous catalyst system comprising a reaction product of (a) an aluminium halide and (b) a halide of a Group VII or VIII metal, the molar ratio of (a): (b) being greater than 2:1, at - 100 to + 200  C. and under such conditions of pressure that the reactants are maintained in the liquid or partially condensed phase. Reactant (b) is preferably cobalt or nickel chloride. Ethylene, propylene or butene-1 are polymerized under a pressure of 200-2000 p.s.i.g. but 3-methylpentene-1 or 4-methylpentene-1 may be polymerized at atmospheric pressure, the former giving dimers and low M.W. oligomers while the latter produce viscous or semi-solid higher polymers. The catalyst is prepared by heating the aluminium halide and transition metal halide in a solvent, such as cyclohexane, benzene or chlorobenzene.
Patent GB-851572-A (GB)
Title: Improvements in or relating to milk pails and other milk containers
Inventor: KNOX JOSEPH ROGERS
IPC: A01J9/00
Filed: 1958-08-06
Abstract: 851,572. Stoppers. GASCOIGNES (READING) Ltd. July 21, 1959 [Aug. 6, 1958], No. 25162/58. Class 125(3). A lid for a milk pail which is filled under a vacuum comprises a cover plate 1, a resilient gasket 3 having a depending spigot 3A to locate the lid on the can and pins 2 fixed to the cover plate so that they protrude through holes 3D in the gasket, the pins having an enlarged head 2B and a shank 2A longer than the thickness of the gasket so that the gasket may be displaced for cleaning.
Patent GB-223921-A (GB)
Title: Improvements in electric discharge apparatus
IPC: H01J17/04
Filed: 1924-10-22
Abstract: 223,921. British Thomson-Houston Co., Ltd., (Assignees of Prince, D. C.). Oct. 23, 1923, '[Convention date]. Thermionic generators.-In a discharge tube containing a gas or vapour which is continuously ionized during operation, a negatively-charged grid is mounted so that electrons passing to the anode must pass through the grid, and the grid openings are of such a size relatively to the number of positive ions in the neighbourhood of the grid and to the negative potential applied thereto, that with a small negative potential applied to the grid the current is interrupted even when the anode is charged to a high positive potential. The grid closely surrounds the anode at a distance equal to the mean free path of the electrons passing to the anode. In the arrangement shown for converting continuous into alternating current, two anodes 8, 9 are mounted in tubes 7 branched from a main container having a mercury cathode 2 and two mercury anodes 3, 4 for maintaining the arc. The positive supply main is connected through an inductance 19 and transformer windings 20, 21 with the anodes 8, 9, and the negative is connected with the cathode 2 and earth. The grids 10 are connected together through a winding 25, which has an intermediate point joined through a resistance 28 to earth, and is coupled with a primary winding 24 connected through condensers 23 with the windings 20, 21 which are shunted by a condenser 22. The anodes 3, 4 are continuously excited from a source 5 and an inductance 6 is inserted in the lead to the cathode. The circuit arrangement is similar to that described in Specification 206,837, and is such that if a grid is made negative at the instant when the current to the corresponding anode is zero, current will be prevented from starting up until the negative potential is removed. The resistance 28 reduces the current in the grid circuits. It is stated that a negative potential of 130 volts on a grid prevents current from starting even with a potential of 45,000 volts on an anode. Specification 5684/15 also is referred to.