baber/WOPTO huggingface dataset:
Patent GB-985037-A (GB)
Title: An automatic cross-cutting machine
Inventor: SHEARD PERCY
IPC: B26D1/04
Filed: 1961-02-23
Abstract: 985,037. Cutting machines. PERCY SHEARD Ltd. May 21, 1962 [Feb. 23, 1961], No. 6614/61. Heading B4B. A machine for cutting sheet material transversely comprises a frame which a cutter head is adapted to traverse in both directions, the cutter head having two pairs of rotatable cutters, one pair at each end, and drive means for the cutters which is adapted to advance the advance pair of cutters in an operative direction for either direction of traverse of the cutter head. As shown in Figs. 1 and 3, a cutter head comprises two pairs of rotatable cutters 112, 114, 116 and 118 and has connected to the ends thereof a chain 184 which passes around a pulley 196 driven by an electric motor 200. Sprocket wheels 178, 206, 144 and 210 are mounted on the shafts of the cutters and chains 202, 204 secured at their ends to endplates 96, 98 of a frame 90 pass respectively around sprocket wheels 178, 120 and 206 and 144, 120 and 210 so that as the cutter head is traversed in either direction, the cutters are rotated. The chains and sprocket wheels for rotating the cutters may be replaced by racks and pinions. Each upper cutter, e.g. 112, Fig. 4, is dished and relatively thin so as to be resiliently urged towards the lower cutter, e.g. 114. The cutter 112 is mounted on a carrier 156 which is axially adjustable on shaft 152. The control gear for the motor 200 includes a timer adapted to operate the motor after a predetermined length of material has been fed and is further arranged to reverse the direction of the motor at each operation. Limit switches near each end of the upper part 92 of the frame 90 are operated by the passage of the cutter head to stop the motor and bring the head to rest at the end of the frame. In a modification, Fig. 5 (not shown), the cutter head is advanced by means of chains, each secured at its ends to the end plates of the frame and passing around a drive sprocket as well as around sprocket wheels on the cutter shafts, the drive sprockets being driven in unison from a reversible electric motor.
Patent GB-515674-A (GB)
Title: Method of making coloured pictures from photographs
IPC: G03C11/18
Filed: 1938-03-02
Abstract: 515,674. Photographic colouring and toning processes. GUDENBERG, W. A. VON. March 2, 1938, No. 6625. Void. Convention date, March 2, 1937. [Class 98 (ii)] Consists in methods of locally toning or colouring black and white photographs on paper, glass, or other supports. The chemicals or colours may be applied by a brush or a cotton wool pad, and a removable varnish margin may first be, applied round the part to be treated to protect the remaining parts. Alternatively, a plastic rim as of putty may be applied round the part to be treated to form a dish into which the chemicals or colouring solution is poured, and if desired a varnish margin may be applied before applying the plastic rim. In another method, the photograph is given a ground colour by general chemical toning, and parts are then coloured by local application of tints. Particular toning processes mentioned are the ordinary sulphide sepia process with preliminary ferricyanide bleach; a modification in which the sulphide toning is followed by gold toning : and a further modification in which the photograph is first slightly bleached all over .with ferricyanide, locally re-developed at parts which are to remain uncoloured or are to be coloured or toned subsequently and then toned with sulphide at the remaining parts.
Patent GB-348259-A (GB)
Title: Improvements in and relating to non-return valves
IPC: F16K15/06
Filed: 1930-02-28
Abstract: 348,259. Fluid-actuated valves. OAKLEY, E. C. F., 26, Kilmartin Avenue, Norbury, London. Feb. 28, 1930, Nos. 6695 and 13038. [Class 135.] Check lift valves.-A non-return valve particularly adapted for use in connection with petrol pumps comprises two independently operating superimposed closure members 13, 26, the lower one 13 being adapted to close in advance of the upper one which is fitted with vanes 7 to impart a rotary movement so that impurities are thrown clear of the seat. In the form shown in the Figure the casing is made in two parts 1, 2 the part 1 being provided with an upstanding seat 5 for the valve 26, while the part 2 has a perforated stop plate 15 adapted to engage a projection 16 on the valve. The valve 26 has a guide stem engaging a sleeve 10 supported by webs 11 and the valve 13 which co-operates with a seat 14 has a guide spindle 12 slidably mounted in the spindle 9. In a modification the closure comprises a plane surface co-operating with a knife-edge and the guide is arranged eccentrically. In a further modification the seat for the valve 26 is formed on a detachable member pressed against a knife-edge shoulder in the casing by a ported nut which serves as a seat for the valve 13. In this form the lift of the valve 26 is limited by a spring ring sprung into a groove on the guide spindle. The valve 26 may have a hard steel face secured by soldering or otherwise.
Patent GB-471370-A (GB)
Title: Improvements in and relating to tyre chains and chain attachments for vehicle wheels
IPC: B60C27/06
Filed: 1936-03-05
Abstract: 471,370. Vehicle wheels. SMITH, J. H. March 5, 1936, No. 6698. [Class 144 (ii)] Transverse tread-chains, shown formed of twisted links 7, and consisting of separate gaiters or connected by side-chains 8, are secured to tee-headed lugs 4 fitted in staggered relation to opposite sides of the wheel. In a modification (not shown), the lugs may be fitted to the chains to engage eye-pieces carried by the wheel.
Patent GB-1502773-A (GB)
Title: Heat sealing apparatus
IPC: B29C65/00
Filed: 1974-02-14
Abstract: 1502773 Sealing bags THAMES SACK & BAG CO Ltd [trading as THAMES PACKAGING EQUIPMENT CO] 12 Feb 1975 [14 Feb 1974] 6832/74 Heading B8C [Also in Division B5] Hot air heat sealing apparatus for sealing together two thermoplastic layers, e.g. the mouth of a filled plastics bag or sack, comprises ducting 50, 52 arranged to divide the air stream from a fan 36 into at least two flows, a heater 41 arranged in the path of one of the flows, means by which air heated by the heater is directed, in use, on to the layers to soften these layers at the region to be sealed, means 20, 21 for pressing the layers together to form a seal, and means disposed in the path of the other of the flows to direct this flow into contact with the layers above the region to be sealed to cool the area above the region and preventing softening of the layers in this region. As shown in Figs, 2 and 3, the fan 36 is connected to four ducts 50, 51, 52, 53, the duets 50, 51 containing cartridge heaters 41, 42, respectively. The filled bags or sacks pass through a central passage 55 in the apparatus and are guided thereinto by a guide 45. Top guides 43, 44 define an upper channel 55<SP>1</SP> and are fixed at one end to the ducts 52, 53, respectively, by curved tab portions 43a, 44a, the lower edges being curved inwardly at 43b, 44b. The lower ends of the ducts 52, 53 are closed and slits are formed in these ducts adjacent the internal faces of the guides 43, 44 so that the air from the ducts 52, 53 keeps the upper portion of the bag in the channel 55<SP>1</SP> cool whilst the portion immediately therebelow is heated by air from the ducts 50, 51. The softened regions of the bag are sealed by crimp rollers 20, 21, Fig. 4, one of which is knurled. The roller 20 is mounted for pivotal movement about a pintle 10 on a ball bushing 15 so that it can be moved radially towards and away from the roller 21. A plunger 54, Fig. 6, is rotatable by a key (not shown) to move inwardly or outwardly of a housing block 52 to act on a bearing block 12 for the bushing 15 so as to pivot the roller 20 about the bushing 15. A set screw 103 passing through an extension of the block 52 bears against the undersurface of a cantilever arm 102 fixed to the block 12. Rotation of the screw moves the arm 102 to alter the inclination of the axis of the roller 20 whereby the axes of the rollers 20, 21 may be brought into parallelism.
Patent GB-325128-A (GB)
Title: Improvements in or relating to dinner wagons, dumb-waiters and like articles of furniture
IPC: A47B31/00
Filed: 1929-03-04
Abstract: 325,128. Openshaw, E. B. March 4, 1929. Multiple-deck tables. -In a dinner wagon. dumb waiter, or like article of furniture. the shelf or shelves 4 is provided along one or more edges with a pivoted rim or rail 7. As shown, the rim 7 is pivoted so as normally to bear against the edge of the shelf 4.
Patent GB-545173-A (GB)
Title: An improved method of heat treating the insulation of electric conductors
IPC: H05B6/78
Filed: 1941-05-30
Abstract: 545,173. Vulcanizing rubber in long lengths. OKONITE CO. May 30, 1941, No. 6947. Convention date, May 31, 1940. [Class 70] [Also in Group XI] Rubber insulation 6 is applied to an electric conductor 2 which is continuously drawn from a supply reel 32. As the conductor is advanced a thin metal sheath 34 is applied and is in sliding contact with an electrode 23. Another sliding contact 25 is applied to the wire, and the two contacts are connected to a high frequency source of the order of several million, which, by reason of dielectric losses in the insulation, causes a heating to vulcanization temperature. The contacts 23, 25 are spaced so that they are located at the nodal points of the wave employed. The sheath may be withdrawn after heat treatment of the insulation.
Patent GB-1423423-A (GB)
Title: Warp tenstion control mechanism
IPC: D03D49/06
Filed: 1973-02-13
Abstract: 1423423 Warn tension control mechanism NISSAN MOTOR CO Ltd 13 Feb 1973 [15 Feb 1972 10 July 1972] 6964/73 Heading D1E A warp let off mechanism for a loom comprises a brake mechanism comprising a substantially semicircular member 36 having brake shoes 42a, 42b thereon and pivoted thereto a second member 38' having a brake shoe 42c thereon the brake shoes being urged against the circumference of a brake disc 34 by springs 50, 50' the pressure being releasable according to warp tension in increments as the diameter of the warp roll varies. Pivoted to the frame 36 by a pin 48 is a bar 46 which rests against a pin 58. When weaving commences the brake assembly is carried in the direction of arrow B and the bar 46 pivots about pin 48 as it presses against the fixed pin 58. The movement of the lower end of bar 46 releases the tension in spring 50' and the brake is released until the brake disc moves allowing the warp beam 10 to rotate. As the warp is unwound the diameter of the warp on the beam is reduced and it becomes necessary to lower the tension in the warp necessary to rotate the beam and hence maintain uniform tension in the warp for weaving. A movable back rest 22 acts on a pivoted lever 92 against the action of a spring 96. If the tension in the warps increases the lever 92 is urged against a microswitch 84 which allows a clutch 70 to engage a rotatable drive rod 66 to the warp drive mechanism so that the pivot point 58 can be raised to vary the angle through which the rod 46 turns before the brake is released. The pin 58 can be reset after weaving by means of a handle 69. In a modification (Fig. 3), two parts of a brake assembly 104, 104' are urged against a brake disc 100 mounted on the end of the warp beam shaft 14 by a spring 114. When excess tension in the warps causes a pivoted back rest 24 to rotate a spring 128 attached thereto lifts the pivoted brake arm 104' against spring 114 thus releasing the brake and allowing the warp beam to rotate.
Patent GB-231468-A (GB)
Title: Improvements in the manufacture of borneols
IPC: C07C35/30
Filed: 1925-03-14
Abstract: In the manufacture of borneol by treating pinene or camphene with an acid and hydrolyzing the resulting ester, the acid employed is of the type COOH-R-CO-R1, in which R and R1 represent aromatic nuclei, their homologues and substitution products, e.g. o-benzoylbenzoic acid, o-naphthoylbenzoic acid, 2 : 3-dichlorobenzoylbenzoic acid, 3 : 4-dichlorobenzoylbenzoic acid, 2 : 4-dichlorobenzoylbenzoic acid, tetrachlorobenzoylbenzoic acid, naphthoyltetrachlorobenzoic acid, and their bromine, iodine, nitro, methyl, hydroxyl and alkoxyl derivatives, as well as mixtures thereof.  The esters obtained are readily hydrolyzed with aqueous caustic soda.  Examples are given of the use of o-benzoylbenzoic acid and naphthoylbenzoic acid for the preparation of borneol from turpentine.
Patent GB-1418825-A (GB)
Title: Door return mechanism
IPC: E05F3/02
Filed: 1973-02-13
Abstract: 1418825 Door closer springs J A THOMAS 5 March 1974 [13 Feb 1973] 7022/73 Heading E2M A door closer spring comprises door and frame attachment pivots 5, 10, a cylinder 1 and a rubber piston 2 which is carried on the end of a rod 8 in airtight engagement with the cylinder; opening of the door causing the piston to move away from a closed end of the cylinder against atmospheric pressure. All of the parts with the exception of the rubber piston are of plastics material (e.g. nylon) and a screw sealed vent 7 is provided to enable the piston to be re-set. Spring biassed balls 14 project slightly from the surface of the piston rod and cooperate with a piston stop 12 to damp closing movement. A piston stop 12 is secured to the open end of the cylinder.
Patent GB-608925-A (GB)
Title: Improvements in or relating to the preparation of alkyl esters of ª‡-(2-(4-carboxy) thiazolidinyl) phenaceturic acid and derivatives thereof
IPC: C07D277/06
Filed: 1946-03-07
Abstract: Alkyl esters of a -(2-(4-carboxy)-thiazolidinyl) phenaceturic acid and its derivatives of the general formula <FORM:0608925/IV(b)/1> in which R is an alkyl radical and X is hydrogen, an alkyl radical or a salt-forming atom or radical, are prepared by the action of cysteine, its alkyl esters, or its salts, on an alkyl ester of a -formyl phenaceturic acid.  In place of cysteine, an acid addition salt of cysteine such as the hydrochloride, sulphate or hydrobromide may be used in the presence of a weak base.  Reaction is preferably carried out at a temperature of 0-50 DEG  C. in an inert solvent (e.g. water, the lower alcohols or dioxane).  In examples: (1) a -(2-(4-carboxy)-thiazolidinyl) phenaceturic acid ethyl ester is prepared by the action of cysteine hydrochloride on a -formyl phenaceturic acid ethyl ester in the presence of potassium acetate; (2) the above reaction is repeated using dilute ammonia as the weak base; (3) a -(2-(4-carboxy)-thiazolidinyl) phenaceturic butyl ester is prepared by the action of a -formyl phenaceturic butyl ester on cysteine hydrochloride in the presence of potassium acetate.  In place of the butyl ester of a -formyl phenaceturic acid, the propyl, amyl, octyl, decyl, dodecyl or octadecyl esters may be used.  Ethyl a -formyl phenaceturate is prepared by the action of ethyl formate on ethyl phenaceturate in an ethereal suspension of sodium ethoxide.  It forms a hydrazone with 2,4-dinitrophenylhydrazine.
Patent GB-256513-A (GB)
Title: Improvements in and relating to the production of plastic masses more particularly for use as paving materials
IPC: C10C3/02
Filed: 1926-03-15
Abstract: 256,513. Marks, E. C. R., (Benzol-Verband Ges.). March 15, 1926. Mineral and tar oils are mixed with the spent materials from the iron oxide purifiers of gas work and the mixture is heated to obtain a plastic composition.
Patent GB-190673-A (GB)
Title: Improvements in and connected with box-spanners
IPC: B25B13/16
Filed: 1922-03-11
Abstract: 190,673. McGhee, J. March 11, 1922. Rigid-jaw wrenches; sliding-jaw wrenches; handles.-A box spanner is formed of a member B pivoted on a pin D in a bifurcated shank C, and one or more inner or outer members B<1> slotted to slide on the pivot pin D. When the member B is placed on a nut the member B<1> slides inwards. The opposite ends of the members B, B', can be employed for two nuts of different sizes by rotating them about the pin D. The spanner can be used in inaccessible positions owing to its pivotal mounting. The shank C mav be formed at the end of an ordinary sliding-jaw adjustable spanner A, Fig. 1 ; or, a second bifurcated shank G may be formed integral with the shank C, Fig. 5, and have two or more box-spanners J, J' mounted on the pivot H. A hole K is provided for an operating lever.
Patent GB-177378-A (GB)
Title: Improvements in collapsible life boats
IPC: B63C9/02
Filed: 1921-03-07
Abstract: 177,378. British Marine Motor & Launch Co., Ltd., and Howden, W. H. March 7, 1921. No Patent granted (Sealing fee not paid). Collapsable vessels. - In lifeboats fitted with foldable bulwarks 1 supported in the erect position by hinged jointed stays 2, the seats 3 are designed to collapse with the bulwarks by hing- ing them outboard to the latter and inboard to a bracket 5 hinged also to the thwart 7.
Patent GB-265803-A (GB)
Title: An improvement relating to means for adjusting the height of tennis and like nets
IPC: A63B61/04
Filed: 1926-03-16
Abstract: 265,803. Hirst, R. R., and Hirst, A. March 16, 1926. Ground anchors for the height-adjusting means of a tennis net comprises a socket a, a shank b with two pistons c, d slidable in the socket, means b<1> at the upper end of the shank for the attachment of the net adjuster e, and a removable projection i extending into the space between the pistons. In a modification, the shank and pistons are replaced by a slidable block having a longitudinal keyway for the reception of the projection i. These arrangements prevent debris from choking the socket. When the adjusting member e is removed the shank b drops until its upper end is below the top of the socket, thus permitting the court to be mowed or rolled without interference from the anchorage.
Patent GB-548402-A (GB)
Title: Improvements relating to means for receiving electrically transmitted measurements
IPC: G08C19/00
Filed: 1941-06-09
Abstract: 548,402. Telemetering. LANDIS & GYR SOC. ANON. June 9, 1941, No. 7248. Convention date, May 22, 1940. [Class 40 (i)] In a system in which the direction and intensity of a distant energy flow is shown on a meter M, direction being signalled by the frequency and intensity by the strength of received alternating currents, the receiver, on receiving a signal of one frequency, prepares itself for the reception of a signal of the other. In the arrangement shown, a 150-cycle signal operates an unbiassed polarized relay H which energizes a relay I to tune the incoming circuit to 50-cycles instead of 150-cycles, and energize relays K, J which reverse the connections to relay H and to the meter M which is operated in accordance with the intensity of the rectified signal. The polarized relay remains in this condition after its input has been reversed, since the 150-cycle energy is no longer able to reach it in effective quantity, but changes over when a signal of 50 cycles is received. Specification 365,761, [Group XXXVI], is referred to.
Patent GB-549883-A (GB)
Title: Improvements in or relating to containers for liquids
IPC: B65D6/02
Filed: 1941-06-09
Abstract: 549,883. Cans. BARON, P. H. June 9, 1941, No. 7283. [Class 66] A deep notch 16 is formed in the narrower end wall of a wedgeshaped petrol or like can, the part 17 above the notch forming the pouring outlet and being provided with a screwed filler cap 18.
Patent GB-289226-A (GB)
Title: Improvements in electrical heating devices
IPC: H05B3/68
Filed: 1927-03-16
Abstract: 289,226. Thompson, S. March 16, 1927. Electric hot-plates. - An electric-plate consists of side-members 1 of steatite &c. connected by cross-rods 2 and formed with holes 3 to receive metal tubes 4 which are formed of non-corrodible metal, such a stainless steel, and provided with a steatite lining 5, space 5 being left at 8 in the holes 3 to allow for the expansion of the tubes 4 under heat. The steatite lining 5 is formed in sections having their abutting edges bevelled. Heating coils 9 passing through the tubular members are connected in series terminals which may be arranged to allow the tubes to be used in sections. To minimise the risk of breakage, a metal plate 10 is supported on the rods 2 and maintained in position by distance tubes 12. A porous-heat-insulating brick is advantageously fitted between the side-members 1 and flat against the under surface of the tubes 4.
Patent GB-965255-A (GB)
Title: Improvements in and relating to receiving aerial systems
Inventor: WHYTHE DAVID JOHN
IPC: H01Q1/50
Filed: 1961-02-28
Abstract: 965,255. Aerials. BRITISH BROADCASTING CORPORATION. Feb. 2, 1962 [Feb. 28, 1961], No. 7335/61. Addition to 868,424. Heading H4A. To reduce the effect of precipitation static in an aerial assembly including a tower 10, an aerial or aerial array 12, 13 and an earthed discharge conductor 11, the extremity of the discharge conductor 11 is located at least as high above the ground as any part of the aerial array 12, 13 and in addition one or more parasitic radiating elements 14 are fixed to and supported by the conductor 11 and are so dimensioned and disposed that radio frequency currents induced in the elements 14 as a result of radio frequency current flow in the discharge conductor 11 produce, in the region of the aerial array 12, 13 or between the elements 14 and the ground, an electromagnetic field which substantially cancels that due to the current in the discharge conductor. In a further embodiment (Fig. 2 not shown), the parasitic radiating elements are in the form of triangular loops arranged in tiers, the individual elements of the centre tier being staggered by 45 degrees with respect to those in the upper and lower tiers.
Patent GB-540114-A (GB)
Title: Improvements in and relating to pre-cast concrete flooring and moulds therefor
IPC: B28B7/24
Filed: 1940-04-25
Abstract: 540,114. Concrete beams. COOMBS, J. H April 25, 1940, No. 7470. [Class 20 (iv)] A re-inforced concrete beam of T-section except at its ends, where the section is rectangular, is provided with complementary rabbets along its edges to enable a number of beams to be fitted together to form a continuous floor. The re-inforcing members are preferably of twisted square section rod tied together as shown. The webs of the beams may be provided with wooden fillets to enable a ceiling to be screwed to them or metal hooks may be arranged between the beams to support metal lathing. Where the beams are carried on an intermediate supporting member 31 they are shaped at their ends and arranged as shown in Fig. 4. A multiple mould for the beams comprises a rectangular frame held together by wedges 34 and removable partitions 38 to which are screwed blocks and fillets shaped to give the beam the desired form.