baber/WOPTO huggingface dataset:
Patent GB-398038-A (GB)
Title: Improved burglar alarm means
IPC: G08B13/02
Filed: 1932-10-10
Abstract: 398,038. Burglar-alarms. SPRATT, F., 41, Uvadale Grove, Kew, near Melbourne, Victoria, Australia. Oct. 10, 1932, No. 28209. [Class 118 (i).] A burglar-alarm applied to protective bars, such as a grille, comprises tubular hollow bars insulated from core members and an alarm, such as a bell or lamp, associated with the bars and inner members, contact between the bars and cores due to distortion or breakage operating the alarm. Tubular bars 1 and cores 2 are secured in frame members 4, 5, the former making electrical contact with the frames and therefore with contacts 14, and the latter with a metallic strip 12. The contacts 14 and strip 12 are connected respectively to an electric circuit including an alarm device. Breaking or distortion of the bars causes contact between a bar and its inner core and therefore contact between a screw 14 and the strip 12, the alarm being operated. The alarm device may be included in a subsidiary circuit controlled from a relay in the main circuit.
Patent GB-1006259-A (GB)
Title: Fractionation of mixtures of agarose and agaropectin
Inventor: POLSON ALFRED
IPC: C08B37/00
Filed: 1962-12-19
Abstract: A process for fractionating mixtures of angarose and agaropectin comprises treating such mixture with an aqueous liquid containing dissolved or dispersed therein polyethylene glycol of molecular weight at least 300 in such concentrations as to render parts of the said mixture insoluble or indispersable in the aqueous liquid and separating the resulting insoluble or indispersable fraction from the aqueous liquid containing the balance of said mixture dissolved or dispersed therein.  The mixture to be fractionated e.g. agar, may be dispersed or dissolved in an aqueous liquid, to which polyethylene glycol is then added, or a solution of dispersion of the mixture may be added to an aqueous solution of polyethylene glycol, or solutions of the mixture and of polyethylene glycol may be brought together concurrently, resulting in precipitation of an agarose fraction. Alternatively, the redissolution of an agarose fraction may be selectively suppressed by redissolving the mixture in presence of a sufficient concentration of polythylene glycol.  The fractionation may be effected in several stages e.g. by a stagewise increase in the concentration of polyethylene glycol and removal of precipitated material between successive increases in concentration. Repeated alternate fractionation and redissolution or redispersion may be carried out.  Polyethylene glycol may be removed from precipitated fractions by washing with a solvent, e.g. chloroform.  Optimum conditions for precipitation, which depend on type of mixture to be fractionated, molecular weight of polyethylene glycol, temperature and ionic strength of the aqueous solutions, may be found by determination of a precipitation index (Specification 1,006,258).  In an example, agarose is precipitated from a saline solution of agar at 50 DEG  C. by addition of a 50% saline solution of polyethylene glycol of molecular weight 6000.
Patent GB-1515544-A (GB)
Title: Cylinder locks having plates
IPC: E05B29/02
Filed: 1975-07-04
Abstract: 1515544 Locks NEIMAN SA 4 July 1975 [17 July 1974] 28258/75 Heading E2A Picking of a plate-tumbler barrel lock is prevented by arranging that even with the correct key in the lock,- the tumblers still project slightly from the barrel, rotation being permitted by the clearance between the stator and the barrel. By this arrangement, the tilting of the tumblers by a picking torque does not cause the rounded edge of the tumbler to ride under the edge of the slot. Preferably the projection of the plate takes the form of a circular eccentric portion on radius R1. In addition the stator slots may be faced with hard material 12, 13 to prevent rounding of the corners 7, 8, 9, 10. As a further precaution, each tumbler may comprise two plates P' and P" as shown in Fig. 6.
Patent GB-1061709-A (GB)
Title: Method of attaching fins or sheets to tubes and apparatus comprising tubes fitted with or to fins or sheets
IPC: B21D53/08
Filed: 1965-07-05
Abstract: 1,061,709. Making heat exchangers; Jointing by tube-expanding. HALCON INTERNATIONAL Inc. July 5, 1965 [July 6, 1964], No. 28297/65. Headings B3A, B3J and B3Q. A heat exchanger &c. tube is expanded to engage the edge of a hole in a fin or plate by freezing a liquid, e.g. water, contained in the tube. The fin may be helical, and the tubemetal may be iron, steel, copper, nickel, copperalloy or alloys of noble metal. An assembly of tubes and fins separated by spaces (12, Fig. 8) may be immersed in a bath of liquid air or nitrogen, or freezing of the water in the tubes may be by vaporization or by circulating brine or alcohol. An assembly line may be used in which the tubes and fins are assembled at a first station, the tubes filled with water and the assembly moved on a conveyer to the freezing bath. At least one end of each tube is closed by a rubber plug (13).
Patent GB-809772-A (GB)
Title: Improvements in or relating to tobacco harvesters
IPC: A01D45/16
Filed: 1955-06-29
Abstract: 809,772. Tobacco harvesters. DAVIS, W. E. June 29, 1955, No. 28311/57. Divided out of 809,771. Class 6(3). A tobacco-harvester comprises a powerdriven wheeled vehicle which is driven between the plant-rows and which carries low-mounted seats 35 for leaf-pickers who insert bundles of picked leaves into a tying mechanisn whence the bundles are carried by a conveyer 50 to a higher part of the machine where they accumulate on sticks 43, the sticks being periodically removed by other workers to a rack 18B. The vehicle has a single steerable front wheel 12 driven by an engine 20 carried on a platform 19 and movable with the wheel 12, for steering. The two rear wheels 13 are carried by vertical standards 14 which support an elevated rear platform 18 which carries the rack 1 8B. Further members 32 are bolted to a plate 34 carried by the standards 14, these members having horizontal portions 31 carrying seats 35 and footrests 37 and having forwardly and upwardly extending portions 30 which carry the conveyers 50 and the racks of sticks 43. Each conveyer comprises a chain 50 running around sprockets 47, 48, and carrying, at intervals, transverse pins 51 which can trip a trigger 66 actuating an alarm-bell 64 when sufficient tobacco-bundles have accumulated on a stick 43. The conveyer passes through a binding mechanism 53, 54 having a motor 55 from which a drive is taken, through a shaft 58 and gearbox 60, to the sprocket 47, the remaining sprockets being idle. The binding mechanism comprises a bobbin 101 and needle 105, Fig. 5A, which co-operate to form a series of continuous loops, chainstitched together, around bundles as they are inserted between rollers 200 carried by two guides pivoted to the thousings 53, 54, the separation of the guides initiating a cycle of movement wherein a rotating guard 77 temporarily uncovers the binding mechanism which forms a loop around the inserted bundle, the conveyer being simultaneously moved forward by an increment. The bundles, stitched together, hang down on each side of the chain and are carried to a point above the rack 38 of sticks 43. When the bell 64 rings the driver of the machine cuts the twine and removes the stick, which is placed in the rack 188 by other workers on the platform 18.
Patent GB-1374196-A (GB)
Title: Method of and apparatus for handling material in the form of an endless web
IPC: B26D5/34
Filed: 1972-06-16
Abstract: 1374196 Cutting web material E I DU PONT DE NEMOURS & CO 16 June 1972 [16 June 1971] 28337/72 Heading B4B In a material handling method, material in the form of film, paper, fabric or the like 10, Fig. 4, is advanced along a process path and slit to form edge trim strips 10b and a web 10. The web is advanced along a process path P2 while the edge strips are moved along another path P1 and when desired the width of the edge trim strips is increased, Fig. 6, until the web is severed, the whole of the material then being fed along the path P1. As described polymeric film 10 is advanced from a source past a pair of razor knives 21 to form edge strips 10b which are fed by nip rolls 12<SP>1</SP> to waste shredder, and a web 10<SP>1</SP> which is fed by further nip rolls to a wind-up roll. When a defect 50 is detected in the web by means of a light source 40 and receiver 43, a signal is sent to a control 23 to retract the knives 21 and advance web severing knives 31 into contact with the edge strips 10b. These knives are then moved transversely of the material to increase the width of the strips 10b and finally sever the web 10<SP>1</SP> so that the whole of the material, after withdrawal of the knives 31, is fed to the waste shredder.  In a second embodiment the web severing knives are the same as the edge strip trimming knives. A further detector may be arranged to detect faults developing in the web 10<SP>1</SP> after the edge strips have been cut therefrom, and to cause severing of the web when a fault is detected.
Patent GB-204552-A (GB)
Title: Improved grinding or polishing tool
IPC: B24D15/02
Filed: 1922-10-18
Abstract: 204,552. Gandell, W. R. K. Oct. 18, 1922. Emery and sand cloth and paper; tools.-A grinding or polishing tool comprises a strip 2 of cloth, paper, &c. coated on its front surface with abrading or polishing substance and on portions of its rear surface, which portions include the ends, with adhesive, the strip being wound helically on a wooden or other holder 1 and secured thereto by the adhesive. The ends of the strip are tapered at 5 to lie across the holder.
Patent GB-1533451-A (GB)
Title: Vibratory conveyor system
IPC: A24C5/39
Filed: 1976-07-08
Abstract: 1533451 Vibratory conveyers IMPERIAL GROUP Ltd 22 June 1977 [8 July 1976] 28414/76 Heading B8A A vibratory conveyer system includes a trough 9 mounted on upwardly divergent links 24, 25 which move between limits 24a, 24b and 25a, 25b under the action of a vibrator 28-32, the neutral centre NC of the trough 9 having no vertical motion. A wide curtain of material, such as tobacco, dropped from a device (not shown) anywhere into the trough 9 over the whole of its length is conveyed to be discharged at a central opening 13 to be immediately received by the inlet of a hopper (41), Fig. 5 (not shown). As shown a balance weight 34 is connected by links 36 from a support frame 21.
Patent GB-223755-A (GB)
Title: Improvements relating to ink-ribbon mechanism for combined typewriting and computingmachines
IPC: B41J35/00
Filed: 1923-11-12
Abstract: 223,755. Underwood Typewriter Co., Ltd., Bird, S. W., and Holloway, R. J. Nov. 12, 1923. Ink-ribbon mechanism.-In combined typewriting and computing machines having an automatic device for adjusting the ink ribbon to print debits. credits, &c. in different colours, comprising a link 26 which is connected to the variablethrow means 18 of the vibrator-lever 16, and is (1) automatically raised and lowered by means of an arm 25 on a rock-shaft 23, or (2) automatically tripped from the arm 25, and thereby silenced, by means of a rock-shaft 34 having an arm 35 connected to the link, the link can be tripped by means of a manually-operated pushrod 27 engaging an arm 33 on the rock-shaft 34. The push-rod is provided with a knob 32, a stopcollar 31, and a returning-spring 30.
Patent GB-812578-A (GB)
Title: Photographic shutters having built-in flash contacts and a pre-timer mechanism
IPC: G03B9/70
Filed: 1956-09-18
Abstract: 812,578. Photographic shutters. ZEISS IKON DRESDEN VEB. Sept. 18, 1956 [Sept. 21, 1955; Feb. 11, 1956], No. 28496/56. Class 98(1) A photographic between-lens shutter including a flash-contact escapement mechanism and a pre-timer mechanism has a control ring adapted to engage a part on the shutter setting ring and a part on the flash-contact escapement mechanism, so that, by adjustment of the control ring, after setting of the shutter, the pre-timer mechanism will be engaged or disengaged by the said part on the shutter setting ring and the driving member of the flash-contact escapement will be latched or so positioned relative to enable part of the shutter setting ring which is adapted to actuate said driving member on release of the shutter, as to provide various flash delays in accordance with the adjustment of the control ring. The shutter shown includes a pre-timer mechanism 4, 5, engageable by a pivoted claw 31 on the shutter setting ring 18, and flash-contacts 8, 9 adapted to be. closed by a cam 11 driven by a member 10 which, after release of the shutter, is struck by a lug 23 on the setting ring 18. This ring is moved to set position by a handle 19 against a spring and held there by a release lever 20. Exposure times are set by a ring 16 through apertures in which pass lugs 24, 36 on pivoted levers 3, 7 to engage cam slots 2, 6 in a control ring 1, disposed between the ring 16 and the front cover plate 17 and having an actuating arm 14 extending out through a slot in the cover plate. After setting the shutter, the arm 14 is moved into registry with the desired graduation on the cover plate 17 with the result that cam 6 alters the position of lever 7 relative to a lug on the cam 11 and cam 2. through the lever 3 and a pivoted plate 13, may move the claw 31 out of engagement with the pre-timer. In this way the parts are in the requisite position for use of the shutter with a flash lamp necessitating a pre-determined lag between ignition and shutter opening. The control ring 1 may have a toothed segment engaged by a pinion on a shaft, which extends rearwardly out of the shutter housing and is coupled to a graduated setting disc.
Patent GB-1065253-A (GB)
Title: Heat treatment of ceramic bonded or resin bonded grinding wheels and the like
IPC: B24D18/00
Filed: 1965-07-06
Abstract: 1,065,253. Continuous furnaces. NORTON CO. July 6, 1965 [July 8, 1964], No. 28526/65. Heading F4B. Workpieces, particularly ceramic or resinbonded porous articles such as grinding wheels 11 are suspended above a refractory hearth 18 with numerous small evenly spaced perforations by gas under pressure and at the desired firing temperature directed through the perforations and are moved through the firing zone at a predetermined speed. The speed of travel is regulated by a positively driven conveyer 62 at the lower end of the slightly inclined hearth to less than the natural speed of travel under gravity, and workpieces are continuously fed to the furnace by a conveyer 65 so that the workpieces are in contact with each other. Hot gas from the combustion chamber 22 is recirculated through passages 16, 17 and insulated plenum chambers to the distribution chambers 27, 28, 29, 30 and air slides 66, 67 receive the workpieces from the conveyer 65 and feed them to the conveyer 62 respectively. The refractory walls and floor of the distribution chambers 24, 27, 28,29, 30 and the hearth 18 are held in place by springs 56, 57 to allow for thermal expansion.
Patent GB-800514-A (GB)
Title: Improvements in or relating to the production of high-grade concrete reinforcement steels
IPC: C21D7/10
Filed: 1955-10-06
Abstract: 800,514. Altering physical structure. KLOCKNER - HUTTENWERK HASPE A.G. Oct. 6, 1955 [Oct. 6, 1954], No. 28572/55. Class 83 (4). [Also in Group X] Concrete reinforcing bars of cheap quality steels containing 0.03 to 0.25 per cent carbon are cold twisted to obtain the required strength characteristics, the degree of twist producing a pitch of one turn of from 3 to 12 times the bar diameter being varied in inverse proportion to the carbon content and the degree of twist or carbon content being increased in proportion to the diameter of the bar. A yield point of at least 50 kg/sq.mm., strength of 60 kg/sq.mm. and an elongation of 8 per cent is obtained; the degree of twist is also reduced with increasing phosphorus, nitrogen or manganese contents.
Patent GB-503034-A (GB)
Title: Wet-method process of metallization
IPC: C23C18/28
Filed: 1937-10-20
Abstract: 503,034. Metallizing. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE SAINT-COBAIN, CHAUNY, ET CIREY. Oct. 20, 1937, No. 28580. Convention date, Oct. 21, 1936. [Class 82 (ii)] A wet method of metallizing surfaces is characterized in that the surface, first brought into condition to adsorb, a molecular layer of metallic ions, then receives this layer by contact with an alkaline solution of a metallic salt or of an auric, platinic or argentic hydroxide, free from any reducing agent, after which the surface is freed from any excess of ions, and is then metallized by contact with a solution containing a salt of the metal to be deposited. 'Any metal of positive electrode potential such as mercury, bismuth, gold, silver, copper, antimony, rhodium, palladium, osmium, platinum, &c. may be deposited upon surfaces such as polished metals, glass, ceramic materials, mica, cellulose or its derivatives, polymerized resins, varnishes, gums, rubber, ebonite, or organic plastic material having a base of urea, acetals, formol and phenol compounds and synthetic resins. In the case of metallic surfaces, glass, ceramics or mica the first treatment is a cleansing, e.g. by acid followed by rinsing with water. In the case of an organic material, this first treatment is by means of a solvent such as zinc chloride, cuproammonium solutions, or an alcohol, aldehyde, ketone, or organic acid. When the second treatment is by means of an auric &c. hydroxide this treatment is preferably preceded by a washing with stannous chloride together with a rinsing with water. In gilding a copper surface the cleaned surface is submerged in stannous chloride, washed, treated with silver hydroxide solution, washed and finally left in a bath containing sodium aurate, glucose, levulose, and sodium tartrate. In antimonizing a glass surface, the surface is cleaned, immersed in stannous chloride, washed, treated with auric hydroxide solution, washed, and finally immersed in the metallization solution containing antimony trichloride, tartaric acid, sodium hydroxide, ammonium hydroxide, formaldehyde hydrosulphite, ammonium ferrous sulphate, formaldehyde and water. In silvering a film of cellulose acetate, the film is treated with quinone solution, washed, immersed in cuproammonium solution, washed, immersed in a solution of stannous chloride with or without phenol, washed, treated with auric hydroxide solution, washed and then metallized, for example with ammoniacal silver hydroxide and glucose. If the film is to be coppered the metallizing solution contains tartaric acid, copper sulphate, ammo nia, formaldehyde hydrosulphite, iron ammo- .nium sulphate, formaldehyde and water. The metallization solution may be applied a second time.
Patent GB-958553-A (GB)
Title: Clutch
IPC: F16D13/71
Filed: 1962-07-25
Abstract: 958,553. Friction clutches. BORG-WARNER CORPORATION. July 25, 1962 [Aug. 11,1961], No. 28652/62. Heading F2C. A friction clutch pressure plate 15 has lugs 16 passing through openings 17 in the clutch cover plate 18, the lugs having recesses 30 to receive release levers 32 bearing on fulcrum means 24 on the exterior of the cover plate 18, springs 38 between the release levers and the cover plate holding the levers to the plate and urging the ends 36 of the levers into engagement with the recesses 30. The fulcrum means 24 are secured to the cover plate 18 which is bolted to the driving flywheel 10 and forms an abutment for clutch engaging springs 19. The clutch driven disc 13 has a hub formed of two cold headed steel sections 57 welded to a disc member 60 which is a steel stamping.
Patent GB-280707-A (GB)
Title: Improvements for repair of rubber footwear
IPC: A43B3/02
Filed: 1926-11-15
Abstract: 280,707. Dunlop, J. P. Nov. 15, 1926. Repairing.-A repair patch for the toe and heel parts of rubber footwear comprises a rubber cap f thickened at the part a and running to fine edge at b, with, in some cases, an extension c of canvas. The cap is adapted to be secured over the worn parts by means of rubber solution.
Patent GB-628264-A (GB)
Title: Improvements in building elements
IPC: E04B1/58
Filed: 1946-09-25
Abstract: 628,264. Joining interconnected members. TRUP, B. Sept. 25, 1946, Nos. 28686 and 38008. [Class 20(ii)] [Also in Group XV] A building element in the form of a flanged channel has a male and a female end, the female end having a plate fixed to the flanges across the channel so as to leave a space between it and the flanges and the male end having a plate fixed to the flanges across the channel which extends beyond the end of the channel and forms a flat tongue which can be engaged in a space of the size of that provided by the female end. In one form of construction the plate 18, Figs. 1 and 3, forming the tongue and the plate 14 forming the slot are welded in position, two spaced aligned plates 14 being used for extra security, if necessary. To accommodate the tongue of a member lying at right-angles the plate 14 may be arranged at right-angles to the position illustrated. In a modification, Figs. 8 and 9, the female end of the element may be enlarged as at 28 to receive the central channel 10 of the adjacent member. The flanges 12 near the female end may be turned inwardly as at 30 to provide grooves for the reception of the channel 10 part of which is cut away to allow engagement. In a further modification, Fig. 11, the female end has within it an insert 32 of channel section, the channel 10 being engaged in the space between the insert and the enlarged portion 28. The male end has an insert 34 in the form of a flanged channel which will fit within the insert 32.
Patent GB-1261594-A (GB)
Title: Novel 3-arylimino-4,5-dichloro-1,2-dithioles, processes for their production and compositions containing them
IPC: C07D339/04
Filed: 1969-06-06
Abstract: 1,261,594. 1,2-Dithiols. AGRIPAT S.A. 6 June, 1969 [7 June, 1968], No. 28759/69. Heading C2C. Novel compounds of formula wherein R is a phenyl radical optionally substituted by chlorine or bromine atoms or C 1-5  alkyl or C 1-5  alkoxy groups, and acid addition salts thereof, are prepared by reaction of 3,4,5-trichloro-1,2-dithiolium chloride with one equivalent of an amine of formula RNH 2 . The compounds of the invention have anti-fungal activity.
Patent GB-944351-A (GB)
Title: Method of insulating an armature bar
Inventor: SIMONS JOHN SPENCER
IPC: H02K15/12
Filed: 1961-08-10
Abstract: 944,351. Moulding armature insulation. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 26, 1962 [Aug. 10, 1961], No. 28916/61. Heading B5A. [Also in Division H2] An armature bar or winding 1, 2 insulated with polyesters or epoxide resins is consolidated by keeping the bar or winding compressed between clamping members 3, 5 while the resin is cured by heating in an oven or by passing a current through the conductors or both. The members may be of metal or rubber and wrapped with a shrinkable tape 6.
Patent GB-396580-A (GB)
Title: Television transmission method
IPC: H03K12/00
Filed: 1932-10-17
Abstract: 396,580. Television. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. Oct. 17, 1932, No. 28922. Convention date, Oct. 24, 1931. [Class 40 (iii).] In a television system employing a constant intensity cathode beam scanning at a variable speed, the generators 1, 2 supplying the transmitter Braun tube 12 with deflecting potentials, have an aperiodic mixing connection so that both deflecting potentials may be transmitted over a single channel. The mixing connection is preferably a resistance 3 having a tapping 4 connected over a condenser 5 to an amplifier 6 feeding a transmission channel 8. At the receiver, filters 9 separate the deflecting potentials, which are applied to deflecting electrodes of the Braun tube 11. In a modification, condensers are placed in the leads between the generators 1, 2 and the resistance 3 and a tapping is taken from resistance 7 to the grid of valve v (Fig. 3, not shown). Specifications 355,319, 392,810, and 397,688 are referred to.