baber/WOPTO huggingface dataset:
Patent GB-382408-A (GB)
Title: Improvements in or relating to cutlery grinding and polishing machines
IPC: B24B19/00
Filed: 1931-10-15
Abstract: 382,408. Grinding and polishing cutlery. WALTERS, B. and DOBSON, W. M., 57, Bailey Street, Sheffield. Oct. 15, 1931, No. 28619. [Class 60.] A machine for grinding and polishing cutlery comprises two grinding &c. wheels mounted on a slide reciprocated at rightangles to the axes of the wheels and across the blades which are carried by resiliently-supported holders reciprocated longitudinally of the blades. The machine comprises a frame 6 carrying two guides 7 adjustable by screws in vertical guides 50, and on each guide is mounted a carrier 9 reciprocated by an adjustable crank pin 12 and a rod 13, the pin 12 being mounted in a slot 14 in a disc 15 driven, through worm gearing in a casing 16, by a main shaft 17. The grinding &c. wheels 11 are carried by a slide 20 reciprocated on a part 22 of the frame, in a direction at right-angles to the movement of the carriers 9, by a lever 25, 26 moved by an eccentric pin 23 adjustable on a disc 24 carried by the shaft 17, the lever being pivoted at 27 and engaging the slide 20 through a shoe 21 mounted in guides 32 on the slide the frequency of the reciprocation of the slide. 20 is greater than that of the carriers 9. The blades are mounted on holders 10 supported on each carrier 9 at one end by a slide-block 34 guided in standards 35 on the carrier and resiliently lifted, to press the blade against the wheel 11, by a spring 37 surrounding a rod 38 secured to the block 34 and confined between a bridge 36 on the standards 35 and a nut 39 adjustable on the rod 38. The holder has a spindle 42 slidable in a cylindrical member 43 rotatably mounted in the slide 34, and the holder, at its other end, is supported by a spring-mounted slide 44 also engaged by a spindle 42. This spring mounting enables the blade to yield if a projection thereon encounters the wheel 11, and in order to allow the blade to yield if the bolster is encountered by the wheel a spring 45, at one or both ends, is mounted on the spindle 42. In a modification, the block 34 is supported by a spring between the block and the carrier 9. The holder may be rocked on its spindles 42 by an arm 47 bearing on a former plate 48. Specification 309,270, [Class 60, Grinding or abrading &c.], is referred to.
Patent GB-810812-A (GB)
Title: Improvements in apparatus for internal abrasive cleaning of tubular articles
IPC: B24C3/32
Filed: 1955-10-07
Abstract: 810,812. Cleaning tubular articles : abrasive blasting. GRANT, V. D. Aug. 3, 1956 [Oct. 7, 1955], No. 28640/55. Classes 60 and 138(1). [Also in Group XXIX] Apparatus for internal abrasive cleaning of tubular articles, comprises a pipe a, Fig. 3, enclosing a coaxial tube b fitted with a terminal spreader device d, whereby air forced through the tube b will be diverted substantially radially in relation to the open end of the pipe a, so as to scatter a stream of abrasive-carrying liquid flowing through the annular space between the pipe a and enclosed tube b. The spreader d has a stem e adjustably screwed into a socket f mounted in the tube b, the latter being entered in the pipe a by lugs c. Abrasivecarrying liquid may be caused to flow either under pressure or by ejector action of the air in the gap g. A pistol-grip handle h may be provided and include a trigger control for the admission of compressed air to the tube b. In a modification the coaxial tubes are connected to coaxial flexible tubes carrying the compressed air and abrasive-carrying liquid.
Patent GB-1431828-A (GB)
Title: Cigarette forwarding apparatus
IPC: B65B19/12
Filed: 1973-09-07
Abstract: 1431828 Discharging hoppers; feeding to conveyers TOKYO AUTOMATIC MACHINERY WORKS Ltd 7 Sept 1973 28657/73 Headings B8S and B8A Apparatus for forwarding cigarettes comprises hoppers 7 the outlets b, b<SP>1</SP> of which flank a transfer passageway 6, pushers 9, 9<SP>1</SP> for feeding cigarettes from the outlets b, b<SP>1</SP>, and a reciprocable frame carrying receiving boxes which receive the cigarettes from the pushers and transfer them to the passageway 6, the frame reciprocating transversely of the passageway 6 such that when one box is aligned with a hopper outlet the other box is aligned with the passageway and the sidewalls of the boxes being such that they are moved together to compact the cigarettes during movement to the passageway 6. The sidewalls of the boxes are pivotally mounted so that the walls diverge when the box is aligned with an outlet, but are parallel when the box is aligned with the passageway 6. The cigarettes are removed from the boxes and transferred along the passageway 6 by pushers 3 mounted on an endless chain.
Patent GB-828083-A (GB)
Title: Improvements in, or relating to, extrusion or injection moulding machines and similar appliances, and heating units for such appliances
Inventor: CRASKE MAURINCE ALLAN
IPC: B29C48/03
Filed: 1956-09-20
Abstract: 828,083. Extrusion and injection moulding machines. BEANWY ELECTRIC Ltd. Dec. 19, 1957 [Sept. 20, 1956], No. 28727/56. Class 87(2). [Also in Group XI] A barrel or cylinder 1 of steel or other magnetisable metal forms part of an extrusion or injection moulding machine and is heated by an induction unit consisting of a U-section magnetisable metal casing 4 which is fitted on the cylinder and which contains a multi-turn coil 8 arranged so as to provide an annular duct 9. Cooling fluid, e.g., air from a compressor, is fed into the duct via a passage 11 and is discharged through an opening 12 ; a heat resisting sleeve 10 lines the coil, which is controlled by a thermocouple or equivalent device. The air supply may be controlled by a valve operated manually or by a thermostat, and may be fed to a number of heating units of which the cooling ducts are connected in series. Alternatively a number of units may be fed from a manifold pipe provided with branch pipes, control being by a single valve or a valve in each branch pipe. Annular cooling manifolds may be provided on the side walls of the casing 4, and flutes or splines for additional cooling effect may be formed in the cylinder 1, Fig. 2 (not shown). In another modification, circumferential grooves may be formed in the cylinder periphery, Fig. 3 (not shown). In a further construction the casing is of double U section to provide two channels each containing current conducting coil and a lining sleeve separated from the cylinder by an annular duct. Preferably the thermosensitive devices for controlling the cooling fluid valves and the coil circuits operate so that the coils are de-energised when the fluid is flowing through the units, and are energized when the flow of fluid is interrupted. Each thermosensitive device may operate a temperature indicator to enable an operator to ascertain when to open or close any valve or coil circuit.
Patent GB-936069-A (GB)
Title: Method of covering a roof or the like
IPC: E04D7/00
Filed: 1962-07-26
Abstract: A method of covering a roof or like structure having an exposed surface comprises the steps of applying to the surface a light, thermally insulating layer of synthetic resinous material, applying to that layer a mixture including a liquid having, at a vapour pressure of substantially one atmosphere, a boiling point lower than the melting point of the synthetic resin, and a surface-active agent, and then applying a layer of bitumen.  The synthetic resinous material, e.g. polystyrene foam may be applied as plates; the liquid may be an aqueous soap solution and may contain glycol, glycerol or calcium chloride.
Patent GB-284575-A (GB)
Title: Improvements in or relating to automatic couplings for railway and like vehicles
IPC: B61G1/40
Filed: 1927-10-28
Abstract: 284,575. Sch÷nell, p., and Huef, H. an. Oct. 28, 1927. Couplings, automatic. - In an automatic coupling for railway vehicles in which spring- controlled claws b are adapted to be opened in the lateral direction by the coupling hook d in coupling and are uncoupled electromagnetically, a spring h mounted on a push-rod g and maintained in compression through a trip-lever i, is expanded by releasing the trip-lever i electrically so that it moves the rod g axially to strike flaps q hingedly mounted on the claws b to open the latter and release the hook. The claws are forced in the direction of the hook by springs e. The trip-lever i is pivoted to a bracket n and is locked by a pin k on an armature l of an electromagnet m. The point of the trip-lever engages a spring plunger o on a block p on the rod g when the latter is pushed back by the nose of the hook d in coupling the vehicles. By energizing the electromagnet either from the side of the vehicle or from on the train the armature withdraws the pin k and releases the trip-lever i. Separate plug-and-socket connections on opposing vehicles may connect all the electromagnets on the train.
Patent GB-1477177-A (GB)
Title: Method and apparatus for melting glass-making materials
IPC: C03B5/03
Filed: 1974-06-28
Abstract: 1477177 Melting glass making materials OWENS ILLINOIS Inc 28 June 1974 [2 July 1973] 28780/74 Heading C1M Glass making materials are melted in a chamber having a stirrer, the materials being heated by electric current passed between the stirrers and at least one electrode located in the chamber. In one embodiment (Fig. 1) the stirrer 22 moves through a vertical circular path. This movement is achieved by attaching the shaft 28 to a bar 29 which is in turn mounted on a pair of linked rotatable wheels 30, 31. An upper section of the shaft is hollow to allow the passage of cooling water. In a second embodiment (Fig. 3, not shown) the stirrer is rotated about its axis.
Patent GB-463139-A (GB)
Title: Improvements in or relating to brake-operating mechanism for vehicles
IPC: B60T8/26
Filed: 1935-10-18
Abstract: 463,139. Vehicle brakes. BENDIX, Ltd., and ROBERTS, G. P. Oct. 18, 1935, No. 28793. [Class 103 (i)] In brake-transmission mechanism for vehicles the pressure applied to the rear wheel brakes, after it has attained a predetermined value, is progressively decreased. The rod a is connected to the brake pedal and the rod f to the rear-wheel brakes. The rods a, f are connected by a lever b, pivoted at c on a lug d having an extension e<1> in a casing h. The lug d, and the casing h are guided by fixed parts k, g of the vehicle. When the brakes are first applied the parts a, b, f, d, h move as a unit until the braking pressure overcomes a spring n and allows the parts d, e<1> to move relatively to the casing h and cause a coned bead l of the part e<1> to spread the balls or rollers m into engagement with the fixed part k thus locking stationary the parts h, d and the pivot c about which the lever b now rocks thus moving the rod f against the action of a spring r in the opposite direction to which it moved initially and the pressure on the rear brakes is consequently reduced.
Patent GB-989271-A (GB)
Title: Improvements in or relating to variable attenuators for ultra high frequencies
Inventor: SUTTON JOSEPH
IPC: H01P1/22
Filed: 1962-07-26
Abstract: 989,271. Variable attenuators. MARCONI CO. Ltd. April 25, 1963 [July 26, 1962], No. 28814/62. Heading H1W. A high-frequency variable attenuator comprises a 3 db. coupler C and two variable resistive-reactive networks RC1, RC2 connected respectively to one of the input side ports C 3  of the coupler and to that one of the two output side ports C 2  which is coupled by the coupler to the first-mentioned port C 3 . The networks RC1, RC2 consist of fixed equal resistors 1RC1, 1RC2 and open or short-circuited transmissionline sections 2RCI, 2RC2 variable by a ganged control in such a manner that the networks always present equal impedances. The networks are connected to the coupler by coaxial lines.
Patent GB-410508-A (GB)
Title: Improvements in and relating to exhaust ventilators
IPC: F23L17/02
Filed: 1932-10-17
Abstract: 410,508. Ventilators. GILES, O., Christopher Works, Corporation Street, Holloway, London, BARNS, A. E., 26, St. David's Road, Southsea, BARNS, W. W. N., 3, Gordon Street, Bloomsbury, London, GUERMONPREZ, M. P., 26, St. David's Road, Southsea, and BELL, C. F., Salisbury House, London.- (Representatives of BARNS, W. C.). Oct. 17, 1932, No. 28929. Addition to 322,800, [Class 107]. [Class 137.] In an exhaust ventilator of the kind described in the parent Specification, and in which a casing a is provided with a perforated base b and subdivided horizontally by platforms, and vertically by baffle plates e, f to form inner and outer chambers g, h<1>, the inner chamber forming a central air uptake, and the outer chamber a downtake or exhaust into passages i, the lower platform is constituted by the base plate b, the baffle plates e are cut away at j, and the lateral walls a<1> are cut away to form gaps k, thus leaving open the lower ends of the downtake chambers h<1>. Air drawn in through the uptakes g, between which is an open tube or trough l, passes into a space d above the platform c, and through the downtakes h, h<1> to the passages i and outlet gaps k in the casing a. In a modification, Fig. 7, the casing a is supported by bolts n from a concentric baffle plate e carried by the platform c, a continuous annular downtake chamber m being formed. Specification 13653/13, [Class 25], is referred to.
Patent GB-1355260-A (GB)
Title: Gentamicin antibiotics
IPC: C07H/
Filed: 1971-06-21
Abstract: 1355260 Gentamicin antibiotics SCHERICO Ltd 21 June 1971 [22 June 1970] 28962/71 Heading C2A  The novel antibiotics gentamicin B, gentamicin B 1  and gentamicin X, and the known antibiotic gentamicin A, having the general Formula (II) wherein R 1 , R 2 , R 3  and R 4  are as follows: and salts and solvates thereof, are produced by subjecting a mixture of the said antibiotics (e.g. the fermentation products of Micromonospora purpurea or Micromonospora echinospora) to chromatography, suitably on silica gel developing with methanol, chloroform and ammonium hydroxide, and recovering the fractions containing each antibiotic. The fermentation products may be initially adsorbed on a cation exchange resin and eluted with ammonium hydroxide, decolorized on charcoal and the solution concentrated in vacuo to provide the starting mixture for the present process. The mixture may be further pretreated, e.g. by adsorption on anion exchange resin, eluting with water to remove gentamicin C, followed by further elution with water to obtain the desired mixture. The mixture is chromatographed on a silica gel column using as developing solvent the lower layer of a mixture of methanol, chloroform and ammonium hydroxide (1 : 1 : 1 v/v), whereby the antibiotics are eluted in the order: gentamicin B 1 , X, B and finally A. The antibiotics may be isolated by lyophilization, and may be recrystallized from ethanol, when they are obtained as the ethanol solvates. When obtained from aqueous solutions, they are in the form of hydrates. Gentamicin A may be obtained as the carbonate salt by exposing the methanolic solution to air, resulting in absorption of CO 2  and precipitation of the said carbonate salt. The antibiotics may be converted to other acid-addition salts by conventional procedures. Gentamicins A, B, B 1  and X have antibiotic activity against Gram-positive and -negative micro-organisms and in addition have antiprotozoal and anthelmintic activity. They may be used individually or together, optionally with a pharmaceutical carrier, in pharmaceutical compositions having corresponding activity.
Patent GB-1395795-A (GB)
Title: Electro-optical light-modution cell
IPC: G02F1/07
Filed: 1972-07-05
Abstract: 1395795 Liquid crystal compositions F HOFFMANN-LA ROCHE & CO AG 5 July 1972 [16 July 1971] 28987/72 Heading C4X [Also in Division H4] A nematogenic liquid crystal composition suitable for use in a Kerr cell (see Division H3-H5) comprises (a) mixtures of compounds of the Formula I where R is Et or n-Pr to n-octyl, and/or compounds of the Formula II where R is n-butyl to n-octyl, and/or other nemotogenic substances; (b) a 1 : 1 : 1 mixture of compounds I where R is butoxy, hexoxy and octyloxy; (c) a 1 : 1 mixture of I (R = butoxy) and N - (4<SP>1</SP> - butoxybenzylidene) - 4 - nitroaniline; (d) a 9 : 1 mixture of I (R = butoxy) and N - (41 - dimethylaminobenzylidene) - 4- nitroaniline; or an 85 : 15 mixture of I (R = butoxy) and I (R = dimethylamino). Specific examples of mixture (a) are given.
Patent GB-243172-A (GB)
Title: Improvements in and relating to vessels for heating liquids
IPC: A47J27/022
Filed: 1924-12-03
Abstract: 243,172. Lack, S. W., and Shepherd, A. J. Dec. 3, 1924. Heating-surfaces, increasing.-A kettle, saucepan, boiler, urn, or other water-heating vessel has the underside of the bottom provided with a series of heat-conducting vanes or slats arranged in rows intersecting at right-angles, thus providing a series of tortuous passages for the flow of the heating gases. The vanes, which may be of plain, curved, angular, or corrugated form, may be integral with the bottom or may be brazed or otherwise attached thereto, and vanes remote from the centre may be thinner, wider, and of greater depth than those nearer the centre. The vanes may be surrounded by a depending " skirt " portion 5 having perforations 6.
Patent GB-423456-A (GB)
Title: Improvements in or relating to reflectors for bicycles or the like
IPC: B62J6/20
Filed: 1933-10-20
Abstract: 423,456. Reflectors. REDFERN STEVENS, Ltd., Beverley Works, Alma Street, and RUSSELL, R., 43, Holyhead Road, Handsworth, both in Birmingham. Oct. 20, 1933, No. 29094. [Class 97 (i)] A rear reflector to be mounted on the mudguard of a bicycle &c. comprises a cylindrical housing 5 formed at its front end with an inwardly - extending flange 9 against which the reflecting element 10 is clamped by a disc-like partition member 12 carrying a bolt 16, extending along the axis of the housing, for securing the reflector to the mudguard 8. The flange 9 is at rightangles to the axis of the housing and the rear end 7 is inclined to the said axis and is outwardly flanged to seat on the mudguard. The disc 12 is concave towards the reflector 10 and is formed at its periphery with an axiallyextending flange 13 which is a close fit within the housing ; a depression 14 in the disc forms a seating for the head of the bolt 16. The disc is secured by pressing in or indenting the wall of the housing. The reflector is secured against the mudguard by a nut 19 and a washer 21 made from a strip of metal with a central aperture and converging ends, this strip being bent about its line of symmetry to substantially U -shape so that the converging ends are parallel to each other.
Patent GB-413159-A (GB)
Title: Improvements in ejector apparatus for pumping oil
IPC: B63B57/02
Filed: 1933-10-20
Abstract: 413,159. Ejectors. SLUDGE PUMPING, Inc., Pier 18, North River, New York, U.S.A. Oct. 20, 1933, No. 29118. Convention date, Oct. 20, 1932. [Class 71.] Apparatus for raising heavy oils, viscous sludges, &c. from the bottom of storage tanks comprises an ejector arranged at the outlet end of the discharge pipe and means for injecting air to aerate the column at the inlet end. The injector comprises a cast iron body and enlarged socket ends 10, 11. A tapered nozzle for the aerated oil is surrounded by a steam annular nozzle 15. The steam supply is controlled by a valve 19. A reducer 21, with air holes 17, is fitted on the suction pipe 7 to emulsify the oil which emulsion is broken down by the steam jet into oil and water. The transmission line is of inverted U-form, and the steam jet is directed downwards.
Patent GB-186533-A (GB)
Title: Track layer for trucks
IPC: B62D55/02
Filed: 1921-11-02
Abstract: 186,533. Gregory, C. Nov. 2, 1921. Endless-track vehicles.-In motor trucks in which track-laying units replace the rear driving- wheels, the units support the main frame through the axle springs and through additional springs at the forward ends of the units. Each unit comprises a pair of spaced members 18. 19, Fig. 3. on which are mounted track-engaging rollers 43, 50 and an idler sprocket 26. The members 18. 19 are united in front by a casting 20 formed with an eye through which passes a bolt 70 carrying springs 71, 72. The upper and lower ends of the bolt engage the end of a yoke member 68 attached to a beam passing transversely under the main frame and fitted with rollers so as to be capable of slight forward and rearward sliding motion arising from the flexing of the axle springs. The driving-sprocket comprises a tubular member 30, Fig. 3, having a radial flange 31 to which the rim 32 is bolted, and rotating in bearings 27, 28 secured to the members 18, 19 by U-bolts 29. The tubular member replaces the road wheel and is driven by a drive plate 35<1> mounted on an axle replacing the road-wheel driving-axle.
Patent GB-1008254-A (GB)
Title: Converter of signals between digital and analog form
IPC: G02F7/00
Filed: 1962-07-30
Abstract: 1,008,254. Automatic control of light intensity. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 30 1962 [Aug. 9, 1961], No. 29192/62. Heading G3R. [Also in Divisions G1, H3 and H4] A light absorption cell 10 is optically pumped by a light source 11 and subjected along the path of the light to a steady magnetic field from a permanent magnet 16 and D.C. current in a coil 13, and to a transverse R.F. magnetic field from a coil, so that of a critical and constant ratio of the radio frequency to the longitudinal magnetic field the light trans mission through the cell detected by a photo-electric detector 15 is a minimum. Changes in the longitudinal magnetic field, e.g. from an analogue input to coil 13, cause an error in the R.F. magnetic field frequency from that producing the minimum light transmission (due to a maximum state of pumping) and this is detected by modulating the longitudinal magnetic field from a coil 21 supplied by a low frequency, e.g. 47 c/s, oscillator 20 to produce an output from the photo detector of equal low frequency and of phase sense and amplitude determined by the error, which is detected in a phase sensitive rectifier 24 relative to a reference input from the oscillator 20. The average D.C. output, integrated at 45 to produce a progressively varying D.C. output, is then applied to variable capacitor diodes 29 of an oscillator 26 to alter its frequency so that after frequency changing by an oscillator 27, it is applied to the R.F. coil 14 with a frequency restoring the minimum light transmission. The oscillator 26 may be frequency divided in stages 38-43 and frequency reduced by quadrature phases from an oscillator 36 in mixers 32, 33 followed by limiters, so that pulse trains are derived whose recurrence frequency corresponds to the amplitude of the analogue input of 13, and is zero for no input at 13, and the phase lag or lead (by 90) of one pulse train relate to the other indicates the polarity of the analogue input. Alternatively, a digital input may alter the frequency of oscillator 26 so that a correspondingly varying D.C. output is derived from rectifier 24,this being then applied to coil 13, and not to the capacitor diodes 29.
Patent GB-601789-A (GB)
Title: Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acid
IPC: C07D307/62
Filed: 1945-11-02
Abstract: Ascorbic acid is obtained from derivatives of keto-gulonic acid by heating esters of the monomethylene ether of l-keto-2-gulonic acid, e.g. monoacetone l - keto - 2 - gulonic with lower alcohols, in water at temperatures above about 120 DEG  C. and preferably above 140 DEG C.  Suitable alcohols are methyl, ethyl and butyl which may be primary, secondary or tertiary, saturated or unsaturated, aliphatic or aromatic or mixed aliphatic-aromatic.  In an example, monoacetone ketogulonic acid ethyl ester is heated in water to 135-140 DEG  C. to produce ascorbic acid.