baber/WOPTO huggingface dataset:
Patent GB-1274972-A (GB)
Title: Gaskets and joints including such gaskets
Inventor: JELINEK JERRY GEORGE
IPC: F16J15/12
Filed: 1970-01-22
Abstract: 1,274,972. Joint-making packing. PARKERHANNIFIN CORP. 22 Jan., 1970 [29 Jan., 1969], No. 3126/70. Heading F2B. A gasket 10 comprises a first plate 11 of rigid material having an offset portion 13, 14 with an opening 15 therein, a member 20 of elastomeric material moulded to the offset portion, and a second plate 25 of rigid material which abuts the first plate and surrounds the member 20. The flange 14 of the offset portion has openings 21 therein filled with the material of member 20. The plate 25 is preferably not attached to either the plate 11 or the member 20 but is removably mounted thereon, its bore 26 being a close fit on the member 20 and on the cylindrical part 13 of plate 11. The gasket is shown in Figs. 3 and 4 in its free and compressed states respectively. In a modification, Fig. 5 (not shown), the offset portion (45) is inclined. The plates 11 and 25 may be of metal or hard plastics and the member 20 may be of synthetic or silicone rubber.
Patent GB-867537-A (GB)
Title: Improvements in or relating to the production of vitamin b
IPC: C07H23/00
Filed: 1958-01-30
Abstract: A process for the microbiological production of vitamin B12 by means of a vitamin B12-producing micro-organism in a nutritive medium containing cobalt is characterised in that the cobalt is present in the medium in the form of sodium cobalti ethylene diamino tetracetate preferably in the proportion of from 25 to 170 milligrams of cobalt per litre of medium.  Suitable organisms are Streptomyces docemino-faciens and Streptomyces erythreus.ALSO:A nutrient medium employed for the microbiological production of Vitamin B12 contains a Vitamin B12 producing micro-organism and cobalt in the form of sodium cobalti ethylene diamino tetracetate, preferably in the proportion of from 25 to 170 milligrams per litre of medium.
Patent GB-607366-A (GB)
Title: Process for the manufacture of ª‡-chloro-ª‡-aceto-ª†-butyrolactone
Filed: 1946-01-31
Abstract: a -Chloro-a -aceto-g -butyrolactone is obtained by chlorinating a -aceto-g -butyrolactone with chlorine gas in the presence of water and of an acid binding agent, preferably a carbonate of an alkaline earth metal.  Examples are given illustrating the use of calcium and magnesium carbonates as acid binding agents.
Patent GB-652751-A (GB)
Title: Improvements in integrating apparatus
IPC: G01D1/04
Filed: 1948-02-03
Abstract: 652,751. Integrating-apparatus. LEEDS & NORTHRUP CO. Feb. 3, 1948, No. 3185. Convention date, March 12, 1942. [Class 106 (iv)]  Integrating-apparatus comprises a driving member rotatable at constant average speed and movable into and out of engagement with a driven member by two structures respectively and means for adjusting the positions of both structures in response to change in magnitude of a condition. A gear 4, Fig. 5, free on a shaft 2 is driven at constant speed, continuously or intermittently, and carries arms 6 which carry, pivoted at 10, a bracket 7 bearing a cam follower 18, pawl 9 and stop 22, Fig. 3. Once in each revolution of the gear 4 electrical or mechanical relays responding to the variable to be integrated move a slide wire 3 fixed to the shaft 2 until an electrical balance is achieved and so set a cam 1 fixed to the shaft 2 so that a notch 20 therein is positioned according to the value of the variable and then when the cam follower 18 enters the notch 20 the bracket 7 rocks so that the pawl 9 drives a gear 11 on a sleeve 12 free on the shaft 2 and through gears 13, 14 drives a counter 15 until the stop 22 strikes an arm 23 to rock the bracket 7 and throw the pawl 9 out of engagement with the gear 11. The arm 23 is carried by an arm 30 free on the shaft 2 and engages a slotted member 31 pivoted at 32 to a fixed part of the apparatus and carrying a cam follower 33 which bears on a cam 34 fixed to the shaft 2 and shaped so as to compensate for non-linearity in the variation of the variable. The ratio of the gears 13, 14 is inversely proportional to the ratio of the angular extent of slidewire 3 to 360 degrees. For continuous rotation of the gear 5 the setting of the disc 1 is so phased as to reduce to a minimum periods of rotation in which the pawl 9 engages the gear 11 while the disc 1 is being set. For intermittent rotation of gear 5 it is so phased that it is at rest while the disc 1 is being reset. To indicate and/or record the instantaneous magnitudes of a condition, a scale and/or chart co-operate respectively with a pointer and/or marker which are coupled as by a cord 28 and drum 29 to the shaft 2 and disc 1. In a modification, differential mechanism 37 is introduced between the gear 14 and counter 15, the gear 14 driving gear 36 and the driven member 38 being connected to the shaft 39 of the counter. If it is desired to integrate deviations from a predetermined value, the gear 40 is driven at a suitable speed to oppose gear 36 whereas if it is desired to integrate values when no position of the slide wire 3 corresponds to zero, the gear 40 is driven at a suitable speed to supplement the gear 36. The apparatus may be applied to integrating temperature with respect to time by using the slidewire 3 as a potentiometer whose effective voltage is balanced against the voltage produced by a thermocouple measuring temperature by total radiation: the latter voltage varies non-linearly and the cam 34 is appropriately shaped to compensate.
Patent GB-251689-A (GB)
Title: Method of and apparatus for causing precipitation of atmospheric moisture and for kindred purposes
IPC: A01G15/00
Filed: 1925-02-05
Abstract: 251,689. Haight, W. Feb. 5, 1925. Regulating transformers.-An adjustable highfrequency transformer for use with apparatus for discharging high-frequency alternating currents into the atmosphere for the purpose of precipitating moisture, forming clouds or dispersing fogs, comprises a primary winding P<1> carried by a frame 15 adjustably mounted on an insulating post 17, and a secondary winding S<1> in two parts connected together in series. One part s<1> of the secondary winding is carried by a drum 19 fixed to the post 17, while the other post s<2> is mounted on a smaller drum 20 in an oil-filled casing 22, which is made of insulating-material and provided with downwardly directed flanges 24 to shed moisture. One end of the secondary winding is connected to one end of the primary winding, the other end of the secondary being connected to a conducting member K from which brush discharges of high-frequency alternating current pass to the atmosphere.
Patent GB-340831-A (GB)
Title: Improvements in or relating to apparatus for tipping and discharging wagons
IPC: B65G67/00
Filed: 1930-01-31
Abstract: 340,831. Tipping apparatus ; slings. ELLSON, B. E., 12A, Wilton Road, Colliers Wood, Merton, London. Jan. 31, 1930, No. 3273. [Class 78 (iv).] In wagon-tipping apparatus, the wagon is secured, hoisted and tipped by a sling A, A1, A2 suspended from two independently rotatable winch barrels C1, C2 on a wheeled carriage D, the bottom of the sling being provided with a protective covering to engage with the body of the truck and a channelled plate G to support the wheels. In modifications members for engaging with the top and sides of the truck are either pivoted to the sling or connected to form an integral part thereof.
Patent GB-1076821-A (GB)
Title: Improvements in acoustic systems
Inventor: PARKIN PETER HUBERT
IPC: G10K15/10
Filed: 1964-01-24
Abstract: 1,076,821. Reverberation systems. MINISTER OF TECHNOLOGY. Aug. 4, 1964 [Jan. 24, 1964], No. 3277/64. Addition to 974,701. Heading H4R. [Also in Division G5] In a reverberation system such as described in Specification 974,701, each microphoneamplifier-loud-speaker unit includes a variable gain amplifier and has associated with it a filter tuned to the resonant mode frequency controlled by such unit. The filter may be an electrical filter for tuning the amplifier, a mechanical filter such as an electrically driven tuning fork or tuned vibrating reed, but is preferably a Helmholtz resonator housing the microphone. The loud-speaker may be tuned by a tube. Several microphones, each within a respective Helmholtz resonator tuned to a different frequency, may feed a single amplifier and loudspeaker, the loud-speaker having connected to it a multiple tube array, tne tubes being tuned to the respective resonant frequencies. The microphone and loud-speaker of a unit are located in the vicinity of the resonant mode frequency which they control and a phase-shift network ensures that sound energy fed into the auditorium by the loud-speaker is in phase with the sound energy of the mode at that location.
Patent GB-1241722-A (GB)
Title: Valved sacks
Inventor: DICKSON ROBERT WALKER
IPC: B65D30/24
Filed: 1969-01-21
Abstract: 1,241,722. Making valved sacks. BRITISH VISQUEEN Ltd. 6 Jan., 1970 [21 Jan., 1969], No. 3327/69. Heading B5D. [Also in Division B8] A sack having a filling valve is formed from a rectangular length of a flattened tubular web of woven polypropylene, polythene or jute by providing a slit 14 in the front wall of the web, folding over an extension portion 12 about a line 17 to cover the slit 14, and forming stitched seams between both layers of the extension 12 and both walls of the web at 19, between both layers of the extension 12 and the front wall of the web at 20 and 21, and along the bottom of the sack at 23. In another embodiment (Figs. 1 and 2, not shown) the extension portion (6) extends across the whole width of an open end (4) of the sack. The open end (4) is closed and secured to the front wall of the web by a stitched seam (8) and the inner or both layers of the extension portion (6) stitched to front wall of the web adjacent the slit (2) to form a seam (7). As an alternative to stitching the seams may be formed using adhesive or heat sealing methods. The valve sack may also include gusseted side walls and a gusset bottom.
Patent GB-562929-A (GB)
Title: Improvements in or relating to pies
Filed: 1943-03-02
Abstract: A lid for a pie is provided with one or more incisions made by additional cutters on the lid cutter, whereby steam can force its way out through the incisions or by breaking through a small portion of the pastry lid adjacent the incisions to avoid damaging p  the lid. The incisions may be in straight or wavy lines or a V or dots and/or dashes, and regular or irregular figures or radiating from a point. The incisions preferably extend through the dough.
Patent GB-1240039-A (GB)
Title: Improvements in or relating to plate heat exchangers
Inventor: COOMBS LAURENCE JOHN HARRIS
IPC: F28F3/08
Filed: 1969-01-21
Abstract: 1,240,039. Plate heat exchangers. AVON RUBBER CO. Ltd. 21 April, 1970 [21 Jan., 1969], No. 3415/69. Heading F4S. In a heat exchanger plate stack wherein adjacent plates are separated and spaced apart by gaskets, these are attached to at least some of the plates in the stack by moulding the gasket in situ on one or both sides of the plate, forming, punching or polishing operations being performed on the plate after the moulding thereon of the gasket. Particularly mentioned as suitable gasket materials are polyvinyl chloride (where the operating temperature is suitable), and synthetic rubbers, e.g. nitrile, fluorocarbon or silicon rubbers. Any suitable moulding process may be utilized and preferably the gasket is bonded to the plate by vulcanizing, adhesion being assisted by a coating of a chemical adhesive on the plate before moulding, where gaskets are moulded at corresponding locations on opposite sides of the plate these can be united through holes provided in the plate at these locations enabling the gasket material to flow thereinto during moulding. The gasket may be a peripheral gasket and/or a gasket encircling a by-pass port in the plate.
Patent GB-866478-A (GB)
Title: Improvements relating to cathode ray oscilloscopes
Inventor: BAKER WILLIAM PERCIVAL
IPC: G01R13/32
Filed: 1957-01-31
Abstract: 866,478. Cathode-ray oscilloscopes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 13, 1958 [Jan. 31, 1957], No. 3453/57. Class 40(7) In a high-speed single-stroke cathode-ray (C.R.) oscilloscope the closing of switch S (see Fig. 1) immediately prior to the signal application to the Y plates of C.R. tube 1 causes capacitor Cl to discharge into circuits AB, AC the ensuing waveforms at A and C being as illustrated by Figs. 2a and 2b respectively. Specifications 599,137 and 618,848 are referred to.
Patent GB-537194-A (GB)
Title: Improvements in adjustable standard lamps
IPC: F21V21/26
Filed: 1940-02-24
Abstract: 537,194. Stands for lamps. CORNERCROFT, Ltd., and RYCROFT, N. Feb. 24, 1940, No. 3483. [Class 52 (iii)] A lamp stand of the kind comprising an upright member 4 pivoted at 6 to a member 3 revoluble in a base 2 and carrying a pivoted arm 5 with a lamp holder 17 is held in adjusted positions by a single spring or set of springs acting both on the upright and the arm. A pair of springs 8 within a tubular upright and connected at 11 to the short end of the pivoted arm are attached at their lower ends to crossed arms 9 pivoted to the member 3 and embracing between them a piri 12. The member 3 is coned at 3a and the base is provided with a limit stop 7. The lamp holder comprises a screwed hook, Fig. 7, retained in a split socket 18 on a member pivoted at 19, Fig. 1, by a screwed sleeve 20. In one modification the springs are located out side the upright and are attached at their lower ends to a cross-piece passing transversely through the upright. In another form a single spring within the upright is attached to an arm extending upwards from the base of the upright.
Patent GB-585924-A (GB)
Title: Method and apparatus for coating flexible webs
IPC: B05C11/06
Filed: 1944-02-25
Abstract: 585,924. Coating webs. WARREN CO., S. D. Feb. 25, 1944, No. 3529. Convention date, Jan. 13, 1943. [Classes 96 and 140] The nozzle of an air brush for coating flexible webs such as cloth, paper and Cellophane (R.T.M.) comprises a leading lip 15 and a trailing lip 16 and a baffle member 17 secured to the leading lip 15. The baffle 17 presents a curved, preferably semi-cylindrical surface 18 to the web 1 at a distance therefrom which is approximately the same as that of the edges of the lips 14, 15. A groove or pocket 19 is formed between the flat face of the member 15 and the curved surface 18 and helps to eliminate fluttering of the web. Other shapes for the surface 18 are elliptical or a falling drop contour, it only being required that the curvature shall extend a substantial distance beyond the point of closest approach to the web. The curvature of the surface 18 within the pocket 19 may be either convex or concave, but the side of the recess should be of the order of that formed by a cylindrical surface 3/32 to ¥in. diameter with a tangential plane extending a distance equal to the radius from the point of contact. Two opposed air brushes form a slot with a width of .09in., and they are preferably mounted with the web vertical, the brushes themselves being capable of adjustment laterally or angularly to vary the direction of the jet. The brushes are described as applied in coating apparatus in which the web is passed in order through a bath and squeeze rollers, past the brushes and over floaters to a suction apron.
Patent GB-1028945-A (GB)
Title: Manufacture of polypropylene film
IPC: B29C55/00
Filed: 1963-01-29
Abstract: 1,028,945. Making polypropylene film. EASTMAN KODAK CO. Jan. 29, 1963 [April 26, 1962], No. 3550/63. Heading B5B. In the making of polypropylene film by melt extruding a crystalline polypropylene to form a film 1À3 mm. or more thick, quenching the film to retain it in an amorphous form and then stretching the film widthwise and lengthwise at a temperature above the second order transition temperature but below the melting point to orient the film biaxially and reduce its thickness to the required value, the film just before stretching is subjected to a heating step at a temperature 15‹ to 20‹ C. above the tenter temperature sufficiently to heat the quenched film throughout its thickness. The widthwise stretch ratio may be 6 to 8 and the lengthwise stretch ratio 4 to 6. The polypropylene may be at least 95% crystalline and may have a melting point of 165‹ to 170‹ C. The stretching operation may be performed at 130‹ to 155‹ C. and the preheating at 154‹ to 170‹ C. The melt extrusion temperature may be 190‹ to 230‹ C. and the quenching temperature 5‹ to 15‹ C.
Patent GB-1249228-A (GB)
Title: Improvements in or relating to a method of and apparatus for handling cartons
Inventor: DORTON ERNEST WILLIAM
IPC: B31B5/80
Filed: 1969-01-22
Abstract: 1,249,228. Erecting flat folded, rectangular cartons. JACOB WHITE & CO. Ltd. 6 Jan., 1970 [22 Jan., 1969], No. 3568/69. Heading B8C.  In a method of erecting flat folded, rectangular cartons, Fig. 1B, which are of the folded-top-opening type and each of which comprises side walls 5-7 with end flaps, not shown, and a top flap 8 with a tongue 9 which is insertable into an envelope 9a formed by a flap 10 glued to the wall 5, the lowermost of a series of cartons, stacked on their side walls 6, 7 in a magazine 11, is picked-off by suction cups 14 on a take-off member 13 and moved transversely so that the carton wall 7 cooperates with a breaker bar 16 to substantially erect the carton. At the same time a retaining arm 21, connected to the member 13 by a spring-loaded telescopic arm 24, 26 is moved obliquely so that its foot 22 abuts the top flap 8 and maintains its tongue 9 engaged in the envelope 9a while the carton is being erected. The member 13, carton 15 and foot 22 continue their simultaneous movement until the carton is fully erected and finally deformed in the opposite direction slightly over top-dead-centre. The take-off member 13 is further withdrawn against the action of the springs 23 on the arm 24, 26 as the lowermost of a pair of rollers 20 on the retaining arm 31 bottoms in a guide slot 19 and the carton is separated from the member 13. The carton is then moved by a conveyer flight bar 30 beneath the break bar 16 and through the apparatus. The slot 19 is formed in a bracket 18 carried by the magazine 11.
Patent GB-287288-A (GB)
Title: An improvement in the manufacture of tinned plates
IPC: C23C2/08
Filed: 1927-02-09
Abstract: 287,288. Williams, H. Feb. 9, 1927. Cleaning.-Tinned plates after they leave the tinning bath are passed through a water bath, which may contain sodium phosphate, heated to a temperature of 190-212‹ F, so that any water adhering to the plates is rapidly evaporated. The bath is heated by means of tubes through which superheated steam is passed.
Patent GB-764373-A (GB)
Title: Improvements in expansible link straps
Inventor: KAPPLER FRITZ
IPC: A44C5/06
Filed: 1955-02-09
Abstract: 764,373. Bracelets. FISCHER, J. and BERGMANN, M. [trading as. FISCHER KOMM.-GES., A.]. Feb. 9, 1955, No. 3846/55. Class 43. An expansible bracelet or linkstrap comprises a series of box-like links a, Fig..2, with flat intermediate connecting links b projecting through rectangular slots in the longitudinal side walls of adjacent box-like links and pivotally connected at their ends n to lugs m provided near the end of the longitudinal side wall opposite that through which the respective flat intermediate link projects, retraction springs q disposed within the boxlike links being connected between the two adjacent flat links associated with each boxlike link. As shown in Fig. 2 the springs q are tensioned between hooks p formed by bending tongues stamped integrally with the flat links b, near to their respective pivots m. The box-like links each comprise a bottom shell c and a closely fitting cover shell g with end walls provided with extensions which are bent beneath the bottom shell c. Fig. 4 shows a modification wherein the retracting springs are formed with a straight middle portion s and coils t which are located in diagonally opposite corners of the box-like link a, the free ends u of each coil being extended towards the middle of the box-like link a to engage behind abutment lugs r struck up from opposite edges of the associated flat-link b.
Patent GB-955131-A (GB)
Title: Apparatus for mixing elastomeric material
IPC: B29B7/56
Filed: 1963-01-30
Abstract: 955,131. Mixing rolls. B. F. GOODRICH CO. Jan. 30, 1963 [Feb. 8, 1962], No. 3851/63. Heading B1C. Apparatus for mixing elastomeric material comprises at least one pair of mixing rolls 11, 12 which may rotate at unequal speeds, a pair of drawing rollers 21, 23 located above the mixing rolls for receiving the band of material from them and returning it to the nip of the mixing rolls, and a shelf 43 interposed in the return path of the band. The band is deposited on the shelf in folds 56 formed by means of guide rollers 40 extending from a carriage member 37 caused to travel back and forth along the mixing rolls by an endless double reversing screw 38. At each end of its travel the member 37 closes a switch 51 or 52 operating a solenoid valve, Fig. 3 (not shown), which admits air to pneumatic cylinders 47, whereby the shelf is moved out of the path of the material; that which has accumulated on it being swept off by the fixed scraper 65 to fall into the nip of the mixing rolls.