baber/WOPTO huggingface dataset:
Patent GB-760353-A (GB)
Title: Improvements in or relating to drills
IPC: B23B51/04
Filed: 1954-02-12
Abstract: 760,353. Drills. ASPLUND, A. J. A., [trading as MASKINFIRMA R. L. CARLSTEDT]. Feb. 12, 1954 [Feb. 14, 1953], No. 4169/54. Class 83 (3). A drill comprises a hollow carrier 10 secured to a shank 16, and a cutter 18 secured to the end of the carrier, the cutter being made of a harder metal than the carrier and extending across the carrier to provide at least one cuting-edge 26 projecting outwardly of one side of the carrier, and a guiding-shoulder 30 at the opposite side. A separate guide 32, Fig. 2, is provided in advance of the cutting-edges 26, 28, and a throat 34 for the passage of chips and coolant. In a modification, the carrier-wall adjacent the cutting-edge 28 may be constituted by, or covered with, material of the same, or approximately the same, hardness as that of the cutter.
Patent GB-752233-A (GB)
Title: Improvements in or relating to reels for tapes, or the like
IPC: G01D15/28
Filed: 1954-02-12
Abstract: 752,233. Bobbins. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 12, 1954 [Feb. 16, 1953], No. 4214/54. Class 120 (3). [Also in Group XX] A film reel has a slot in the core, accessible from the side of the reel, in which the film end may be clamped. In the form shown, the reel is formed from two identical interfitting parts each comprising a flange 1 and a member 13 having a thickness equal to half the thickness of the core. Each of the spokes 2 carries a member 6, forming part of the core periphery and fitting over a member 8 carried on the spoke 3 of the other part, which spoke is formed with a gap 4 which thus becomes a slot in the core of the completed reel accessible from the side of the reel. Channels 11 in the members 13 form bores in the completed core to house spring- loaded balls 15, one of which engages a film end in one of the slots 4.
Patent GB-1215353-A (GB)
Title: Improvements in or relating to the production of polymer resist images
Inventor: DEUTSCH ALBERT SIMON
IPC: G03F7/033
Filed: 1968-01-26
Abstract: 1,215,353. Etching. GAF CORP. 26 Jan., 1968 [7 Feb., 1967], No. 4225/68. Heading B6J. [Also in Division C3] An etched pattern is produced on a surface by imagewise exposing to an electron beam areas of a resist layer on the surface, said layer comprising a polymer (includes homopolymers, copolymers and interpolymers) of maleic anhydride containing 10-65% on a mole basis of maleic anhydride units and having a specific viscosity (1% solution in methyl-ethyl ketone at 25‹ C.) from 0À05-5À0, the exposure being sufficient to cause insolubilization with respect to a solvent in the exposed areas, removing the unexposed portions of the resist layer with the said solvent to provide a resist image and etching the exposed areas of the surface. Co-polymerizable materials include the vinyl alkyl ethers, e.g. methyl-, isobutyl-, dodecyl-, hexadecyl- and octadecyl vinyl ether, and also ethylene propylene, styrene and p-chloro-, p-methoxy- and p-methylstyrene. The polymer may be applied to the surface in a solvent such as methyl-ethyl ketone, dimethyl ketone, acetone, methanol, ethanol, chloroform, dimethyl formamide and dioxane. The resist may also contain cross-linking agents such as N,N<SP>1</SP>- methylene - bis - acrylamide, acrylamide, divinyl benzene, styrene, ethylene glycol and divinyl ether. A long chain (10-20 carbon atoms) ethylenically unsaturated hydrocarbon e.g. 1-hexadecene may also be included. The exposed resist may be treated with any of the previously enumerated solvents which exhibit solvent potential for the non-insolubilized areas. The abovedescribed resist is exemplified as being used for masking copper, aluminium, silicon, oxidized silicon and glass. Copper surfaces are subsequently etched with a mixture of ammonium persulphate, sulphuric acid and mercuric chloride. Aluminium surfaces are subsequently etched with hydrochloric acid. Glass surfaces are etched with hydrofluoric acid. Silicon surfaces are etched with a mixture of nitric acid, acetic acid and hydrofluoric acid. Oxidized silicon surfaces are etched with a mixture of ammonium bifluamide and hydrofluoric acid.
Patent GB-555842-A (GB)
Title: Improvements in or relating to the production of pectinic acids from sugar beet pulp
IPC: C08B37/00
Filed: 1942-03-30
Abstract: 555,842. Pectinic acid. McDOWELL, R. H., and BULMER & CO., Ltd., H. P. March 30, 1942, No. 4238. [Class 2 (iii)] Sugar beet pectin is hydrolyzed with a soluble alkali to remove 40-80 per cent. of the methyl groups. The product, alone or with an addition of apple pectin, will set to a jelly in the presence of sugar and the salts present in fruits.
Patent GB-207732-A (GB)
Title: Improvements in or relating to hand hat bags
IPC: A45C11/02
Filed: 1923-02-13
Abstract: 207,732. Grossman, M. L., and Lowe, J. N. Feb. 13, 1923. Bags.-A flexible hand-bag adapted to hold a lady's hat and also additional small articles comprises a. band member 10, Fig. 1, a bottom disc 12, and a cover disc 11, of black oil-cloth or other smooth flexible waterproof fabric lined with coloured or figured fabric. The 'bottom disc is secured to the band by internal stitching so as to afford a corded external edge 21, a similar edge being provided at the junction of the cover disc 11 with the band 10 and with the auxiliary strip 15. When the bag is closed the strip 15 is overlapped by, and secured by means of pressfasteners to the free edge part 16 of the band. A strip 2@ sewn into the junction of the base disc and the band and carrying a press-fastener element is adapted to be secured to a tab 24 sewn into the junction edge of the cover disc, these parts forming a handle. To stiffen the bag so that it maintains its shape for display purposes a pasteboard or like strip 27, Fig. 5, is slipped through a slit 28 into the space between the band and the lining thereof. Specification 207,708 is referred to.
Patent GB-610733-A (GB)
Title: Improvements relating to the repair of rubber tyres
IPC: B29C35/00
Filed: 1946-02-12
Abstract: 610,733. Repairing and retreading rubber tyres. DUNLOP RUBBER CO., Ltd., ADAMS, A. L., and GOUGH, S. W. Feb. 12, 1946, No, 4283. [Classes 70 and 87(ii)] In the repair of rubber tyres pressure is applied to a tyre at a place of repair by means of a substantially U-shaped inflatable bag 8 of natural or synthetic rubber having a substantially U-shaped internal chamber 8a, a fabric reinforced outer wall, and an inner wall 8c adapted to be readily deformed when the bag is inflated, the bag being adapted to embrace the crown and shoulder portions of a tyre 4 at the place of repair 4a. A rubber matrix 5 which is moulded to the pattern of the tread of the tyre at the place of repair may be interposed between the bag and the tyre, or the inner wall of the bag may be thin enough to be forced into the pattern of the tread of the tyre adjacent to the place of repair when the bag is inflated. When a highfrequency heating process is employed, the bag may be mounted between a rigid base 9 and the outer electrode which is carried by an electrode strap 6, or may be mounted between the outer electrode and the tyre, (Fig. 2 not shown). The bag may be inflated by a liquid such as castor oil having a permittivity near to that of rubber. Specifications 610,732, [Group XI], and 610,734, [Group V], are referred to.
Patent GB-868588-A (GB)
Title: Improvements in tubeless pneumatic tyres
IPC: B29C73/18
Filed: 1959-02-06
Abstract: 868,588. Tubeless tyres. SEIBERLING RUBBER CO. Feb. 6, 1959 [Feb. 12, 1958], No. 4305/59. Class 144 (2). To enhance its puncture sealing characteristics, a tubeless tyre 10 having an inner liner 15 of butyl rubber adhered to its inner surface has a band 16 of air-impervious butyl rubber or the like adhered only at its side edges A, A to the liner 15 so that it lies snugly against, and is unattached to, the crown area of the liner and is in an untensioned condition. The band 16 may be reinforced with plies of parallel or reticulate textile or metal cords and may incorporate a layer of partially or wholly unvulcanized rubber as a puncture sealant.
Patent GB-823058-A (GB)
Title: An improved means for supporting overhead electric traction conductors
Inventor: WEEKS LEONARD THOMAS
IPC: B60M1/24
Filed: 1956-02-10
Abstract: 823,058. Suspending cables. BRITISH INSULATED CALLENDER'S CABLES Ltd., and BRITISH INSULATED CALLENDER'S CONSTRUCTION CO. Ltd. Feb. 8, 1957 [Feb. 10, 1956; Aug. 8, 1956; Nov. 27, 1956], Nos. 4316/56, 24341/56 and 36285/56. Class 36. [Also in Group XXV] A suspending means for a contact wire of an overhead traction system incorporates a clip comprising a pair of metal clamping members shaped at one end to form either a pair of jaws for gripping a contact wire or a pair of jaws for gripping a catenary cable and joined together or adapted to bear against each other at the opposite end in such a way that the jaws are movable towards and away from each other and that when the contact wire or catenary cable is gripped between the jaws, parts of the outer surfaces of the members diverge as the jaws are approached and a locking-ring having an aperture of such size and shape that it can embrace both clamping members and can be slid along their diverging parts towards the jaws into a clamping position on which by resilient deflection of the clamping members it causes the contact wire or catenary cable to be securely gripped between the jaws, the ring being retained against accidental displacement from the clamping position by means consisting of or including shaped parts of the outer surfaces of the clamping members. As shown in Fig. 1, the clamping members 2, 3 bear against each other and the ring 4 is retained against accidental displacement from the clamping position by inwardly joggled seats 9, 10. Auxiliary seats 11, 12 are also formed on the clamping members with which the locking-ring can be temporarily engaged ; in such a position the jaws engage the wire or cable but do not grip it so that the clip can be slid along. The members are formed with apertures 13, 14 through which a wire dropper loop can be passed. As shown, the jaws 5, 6 are arcuate for gripping a catenary cable; when the clip is intended to grip a contact wire the jaws are turned inwardly and are shaped to fit into side grooves in the contact wire. In a modification, Fig. 9, the jaws are formed with extensions 31, 32 which have interlocking lateral projections 33, 34 which prevent the clamping members springing apart when the locking ring is moved from the clamping position. This construction is suitable only for engaging a catenary cable. In an alternative construction, Fig. 10, which shows clamping members 41, 42 joined together, the locking-ring 40 is provided with two fingers 43, 44 which engage recesses 45, 46 in the clamping members 41, 42 to hold the ring in the clamping position. The fingers can be forced sideways by hand from the recesses to release the ring. Tongues 47, 48 are also attached to the ring to reinforce the clamping jaws 49, 50. In the first construction the ring instead of having a single aperture can have two apertures, one for each clamping member.
Patent GB-783755-A (GB)
Title: Improvements in and relating to the manufacture of shaped articles
Inventor: BIRKS ALECK MACGREGOR
IPC: H01J25/30
Filed: 1956-02-13
Abstract: Shaped articles, e.g. domed sheets, are made by heating at a temperature above 100 DEG  C. and for a sufficient length of time to effect complete cross-linking a copolymer of methyl methacrylate, glycidyl methacrylate and methacrylic acid, wherein the glycidyl methacrylate and methacrylic acid are each present in an amount sufficient to cause cross-linking upon heat treatment and are together present in an amount not exceeding 20 per cent by weight of the copolymer, and then subjecting the cross-linked copolymer to a moulding operation while it is still hot.  Suitable cross-linking temperatures are 100 DEG  to 165 DEG  C.  Specification 681,031 is referred to.
Patent GB-1575776-A (GB)
Title: Method for the remote synchronization of a colour television synchronizing generator in accordance with ccir-pal standards
IPC: H04N9/475
Filed: 1978-02-03
Abstract: The burst from the remote FBAS signal is separated via a burst strobe (1) and fed to a first phase comparator circuit (2). The regulating voltage of this first phase comparator circuit controls a first reference oscillator (4). The synchronisation signal contained in the FBAS is diverted by an amplitude filter, and separated into its horizontal and vertical components by separators (7) and (10). In a second phase comparator circuit (12), the horizontal pulse (11) from the horizontal separator (10) is compared with an internal horizontal pulse (14) received from a divider (17). The regulating voltage which is derived in this way controls a second reference oscillator (13), which oscillates at double the horizontal frequency (2fH), and provides clock pulses for the divider (17). The synchronisation pulses generated in the divider are fed to the picture signal sources to be synchronised via a transit time compensator (18). The divider (17) is set by a reset pulse (15) which is gained from a reset pulse circuit (9). The colour television clock generator can be perfectly synchronised even by semi-professional video recorders, which usually leads to unsatisfactory results because of timing errors and dropouts. It is also possible to implement a short synchronisation time. <IMAGE>
Patent GB-511065-A (GB)
Title: Means for automatically closing the trapdoors of poultry houses
IPC: A01K31/02
Filed: 1938-02-14
Abstract: 511,065. Closing the trapdoors of poultry houses. HEAL, E. D. Feb. 14, 1938, No. 4520. [Class 44] Means for automatically closing the trapdoors of poultry houses, comprises two independent clocks 24, 25, each adapted to operate by its hour hand 39 a time switch, one 25 to energise a solenoid 8 and release the end 5 of a pivoted lever 4, thereby disengaging the other end 3 from a spring catch 2 on the trapdoor 1, so that the door falls. If it fails to fall, the second clock 24 operates a switch to close the circuit of a warning lamp 41. The door 1 carries a contact strip B in sliding engagement with two contact strips 14, 15, of which 15 is connected to the solenoid 8, so that when the switch of clock 25 is actuated, current flows from a battery 27 through switch terminals 31, 35, solenoid 8, and contacts 15, 13, 14 back to the battery. When the switch of clock 24 is operated, current flows from the battery through a spring blade 20, armature 18, solenoid 17, contacts 35, 31 of the switch, and contacts 15, 13, 14 to the battery. The solenoid moves the armature 18 out of contact with the blade 20, which springs up into contact with another blade 22 and completes a circuit for the lamp 41. Each switch comprises an insulating plate 29 on which a conducting plate 30 is mounted by means of a terminal screw 31 which passes through 30 and 29 and a semi-circular slot 28 in a supporting panel 23, and is fixed by a nut by means of which the switch may be adjusted in the slot 28. Mounted on the plate 29 is a spring contact blade 33 supporting a terminal 35 and having an inturned lower end 34 which presses against the surface of an insulating star wheel 38 adapted to be moved by the hour hand 39 at a predetermined time. The wheel has three slots 40 through which the lower end 34 of blade 33 can pass to contact with conductor 30 when the wheel has been turned by the hand 39. In a modification, the second clock, instead of actuating a lamp circuit, may actuate the releasing device of a second door for opening an outlet. When the clocks 24, 25, their time switches, and the lamp 41 are at a distance from the poultry-house, the switches are connected through resistances to electric mains, and the door is released by retraction of a solenoid plunger from a latch thereon.
Patent GB-544532-A (GB)
Title: Improvements in off-set lithographic printing presses
IPC: B41L19/00
Filed: 1941-04-04
Abstract: 544,532. Printing-machines. RITCHIE, H. April 4, 1941, No. 4523. [Class 100 (ii)] A rotary lithographic offset printing-machine of the kind in which the printing-plate is secured to a printing-cylinder which is split longitudinally and is contracted to receive the printing-plate and expanded to receive it in position is constructed so as to permit the driving-connection between the printing and offset cylinders to be readily disconnected, and to permit the positive circumferential adjustment of the plate cylinder relatively to the offset cylinder when the drive is disconnected. To the shaft 12 of the plate cylinder 11 is connected by a screw 19 a bevel gear 14 and discs 15, 16 all connected by bolts 17. A split driving-gear 21 which gears with the offset cylinder is normally clamped to the discs 15, 16 by a screw 29, and the hub of wheel 21 is fitted with a small bevel wheel 31 adapted to engage the bevel wheel 14. When adjustment of the wheel 21 relatively to the shaft 12 is required the screw 29 is loosened and the wheel 31 operated by a screw-driver adapted to engage the feed 30 of a stud on which the wheel 31 is mounted. After adjustment, which may be assisted by a pointer 35 on wheel 21 and a scale 21A on disc 15, the wheel 21 is clamped in position by the screw 29.
Patent GB-698172-A (GB)
Title: Improvements in or relating to oil burning equipment
IPC: F23D11/00
Filed: 1949-02-18
Abstract: 698,172. Liquid-fuel burners. SHORROCK, C. Jan. 27, 1950 [Feb. 18, 1949], No. 4547/49. Class 75(i) Oil fuel burning equipment has a slidable damper spring-urged towards a position sealing a secondary air inlet duct and automatically movable to the duct opening position when the equipment is switched on. The apparatus comprises a damper 4 attached to a sleeve 5 slidably mounted on a primary air tube 3. The damper 4 is moved by a spring 11 to close the end of a secondary air tube 2 when the burner is not in operation and by means of primary air pressure from a fuel and air compressor 1 through a pipe connection 12 operating on a piston 6 attached to the other end of sleeve 5, is moved to the open position, as shown, when the burner is in operation. Rearward movement of the damper 4 is limited by an adjustable stop 8. An adjustable air bleed valve 13 determines the rate of air displacement in the cylinder 7 and hence the speed of opening of the damper 4. A suction valve 14 is provided at the rear of cylinder 7 to permit the rapid return of the piston to close the damper 4. The operation of the damper 4 may be effected electrically by means of a solenoid, or hydraulically.
Patent GB-951664-A (GB)
Title: Improvements in or relating to infusion equipment for mining
Inventor: NEALE LESLIE ARTHUR
IPC: E21C37/12
Filed: 1961-02-08
Abstract: 951,664. Fluid-pressure blasting devices. HAYDEN-NILOS Ltd. Feb. 5, 1962 [Feb. 8, 1961], No. 4626/61. Heading F3A. In infusion equipment for mining provided with an expansible seal 12 and a relief valve therefore as in Specification 853,272, the disposition of the relief outlet is changed. Water to inflate the seal passes from the tube 1 through lateral passages 11 intermediate the clamping rings 13, 14 holding the seal in position. The tube 1 is closed at the forward end by a cap 8, the skirt 10 of which has a port 9 in register with an opening in the tube 1, the opening being closed by an extension 15 of the seal 12. When water under pressure enters the tube 1, it expands the seal 12 into contact with the walls of the borehole 6 and passes into the borehole through the outlet 9. Should water under pressure be admitted to the tube 1 before insertion in the borehole, the outlet 9 and extension 15 act as a relief valve preventing rupture of the seal 12.
Patent GB-507101-A (GB)
Title: Improvements relating to horizontal boring, drilling and like machine tools
IPC: B23B41/12
Filed: 1938-02-15
Abstract: 507,101. Boring - heads. RICHARDS & CO., Ltd., G., and JONES, J. F. Feb. 15, 1938, No. 4666. [Class 83 (iii)] The telescopic tool-holder f of a snout borer e, Fig. 6, to be attached to the transverse slide c in the facing head a of a horizontal boring, facing &c. machine, is provided with an enlarged head g in which are formed opposed longitudinal slots h, Fig. 1, and an end slot i so that the same cutter may be secured in any of the positions m, n<1>, n<2>, Fig. 4, for performing the boring and facing operations shown. Alternatively a straight cutter may be secured in different positions in the slots h; i for performing boring, facing and turning operations, or a roughing cutter p and finishing cutter p<1> may be mounted (as shown) in Fig. 6, a spacing block o engaging the transverse slide being removed to bring the finishing cutter into operation.
Patent GB-564432-A (GB)
Title: An improved means of forming railway rail joints
IPC: E01B11/24
Filed: 1943-03-23
Abstract: 564,432. Rail joints. BUTLER, W. A. March 23, 1943, No. 4690. [Class 104 (ii)] In a rail joint the heads a of the rail ends are cut obliquely so as to form on the top of the web of one rail a quadrilateral surface bl on which rests the underside a<3> of the head of the other rail.
Patent GB-327713-A (GB)
Title: A process for the manufacture and production of artificial masses
IPC: C08G8/32
Filed: 1928-09-29
Abstract: 327,713. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 29, 1928. Divided on 327,417. Condensation products of oxidized montan wax with synthetic resins. - Hard wax-like products are obtained by simultaneously producing high molecular condensation products of a resinous nature containing hydroxyl groups but not aromatic or hydroaromatic sulphur compounds, and esterifying such products with the high molecular fatty acids of bleached montan wax or a conversion product thereof still containing free carboxylic acids. The ingredients may be melted together, or be heated mixed with water or with naphthalene or other organic solvent boiling above 95‹ C. Accelerators, e.g. sodium bisulphate, boric acid, or anhydrous zinne chloride, may be boric acid, or anhydrous zinc chloride, may be obtained by (1) prolonged heating; (2) converting part of the montan wax acids, before, during, or after the esterification, into metal salts, especially of calcium, lead, or other divalent metal; or (3) dispersing the powdered wax-resin ester produced as above in an aqueous solution of formaldehyde and a phenol, and adding ammonia or other agent effecting condensation of the phenol and aldehyde. Stability to temperature and resistance to solvents may be increased by treating the esters with trioxymethylene or other substance yielding formaldehyde on heating. Dyestuffs, kieselguhr, wood meal, cork powder, asbestos fibre, natural or artificial resins, asphalts, pitches, gums, rubber, cellulose esters or ethers, or other fillers may be added. Highmolecular resinous condensation products specified are artificial resins or organic glasses such as are obtained by condensation of aldehydes with aldehydes with phenol and its homologues, or with urea and its derivatives e.g. thiourea. Light coloured products are obtained by operating out of contact with oxygen, e.g. in vacuo or in carbon dioxide or nitrogen, and by starting with montan wax bleached by chromic acid or other oxidizing agent or with the free acids extracted therefrom, as by glacial acetic acid. In examples (1) phenol is heated with bleached montan wax in an atmosphere of carbon dioxide or nitrogen and hexamethylenetetramine added. The melt cools to a homogeneous hard brown solid, which when gradually heated to 180‹ C. loses its fusibility and its solubility in a mixture of alcohol and benzene, and becomes brown red and resinous; (2) an acid compound obtained by melting bleached montan wax with lead oxide is stirred into a solution of phenol and formaldehyde and concentrated ammonia added; on heating and driving off the volatile constituents a brown resinous solid is obtained. Specification 322,496 is referred to. Reference has been directed by the Comptroller to Specification 219,368.