baber/WOPTO huggingface dataset:
Patent GB-1311509-A (GB)
Title: Etching methods
IPC: G03F7/00
Filed: 1970-05-19
Abstract: 1311509 Etching PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 May 1970 [22 May 1969] 24222/70 Heading B6J A method of etching a surface comprises providing on the surface an etch resistant mask and then, either immediately, or after a period of etching, coating the exposed areas of surface and the mask with a positive photoresist, exposing and developing the resist and etching the exposed areas of the surface. The coating of photoresist fills dry gaps between the mask and the surface and may also fill any cavities formed by underetching of the mask during a first period of etching. Upon exposure and development only those areas of photoresist fitting these gaps and cavities remain. In an embodiment, Figs. 4 and 5, the mask 12 is of nickel (which has been formed by selectively etching a nickel layer with nitric acid through a photoresist 13) and the surface 11 is aluminium. An overall coating of positive photoresist 14 fills the cavities 15 and 16 formed by underetching during a first period of etching. On exposure and development of the resist only those areas in the cavities, Fig. 5, remain to protect the surface from further etching (with phosphonic acid). In a further embodiment, Figs. 8 and 9, the mask 27 and 28 is of nickel and the surface 22 is of SiO 2 . Initial etching of the nickel with nitric acid enlarges gaps 29 between the mask and the surface. These gaps are filled by the overall positive photoresist coating 30, which, when exposed and developed, remains to protect the gaps from the NH 4 F/HF etchant used to attack the SiO 2  surface.
Patent GB-615774-A (GB)
Title: Diazotype light-sensitive layers
IPC: G03C1/54
Filed: 1946-08-15
Abstract: 2 : 5-Di-benzyloxy-4-acetamidoaniline is prepared by nitrating hydroquinone dibenzyl ether (obtained by reacting hydroquinone with benzyl chloride), reducing with iron and hydrochloric acid, acetylating, mono-nitrating, and reducing.  2 - Ethoxy - 4 - acetamido - 5 - benzyloxy - aniline is similarly prepared.  2 : 5 - Di - benzyloxy - 4 - methoxyformamidoaniline, 2 : 5 - di - benzyloxy - 4 - ethoxyformamido - aniline, and 2 : 5 - di - benzyloxy - 4-propoxyformamido - aniline are similarly prepared, replacing the acetylation step by reaction with methyl, ethyl, and propyl chlorocarbonate.  2 : 5 - Di - benzyloxy - 4 - succinimido - aniline is similarly prepared by replacing the acetylation step by refluxing with succinic anhydride in benzene,
Patent GB-1467635-A (GB)
Title: Refrigerator construction and the manufacture of panels therefor
IPC: B29C53/04
Filed: 1973-05-22
Abstract: 1467635 Bending sheet material KELVINATOR Ltd 22 May 1974 [22 May 1973 21 Feb 1974] 24408/74 and 7914/74 Heading B6J [Also in Division F4] An apparatus for forming a channel along at least one edge of a thermoplastic sheet material 5, Fig. 8, by folding along at least two substantially parallel fold lines which have been previously heated comprises pads 56 depending from a vertically movable operating head 46 to clamp the sheet on a table 43. Line heating elements 60, 61 on a carrier 62 on the head, a pair of vertically movable formers 63 on a ram 64 and a pair of horizontally movable swaging heads 65 carried by a ram 66 are located beyond the edge of the table. The heaters 61 are lowered to heat the panel along spaced lines 70, 71, Fig. 13, upwardly removed, and the former 63 raised to contact the panel to bend it at 70 and also at 71 under the influence of gravity and inward movement of an upper tongue 72 of the swaging head. Continued inward movement of the swaging head and lowering of the former 63 allows a lower tongue (73, Fig. 17) and tongue 72 to form a groove, and the width of the groove determines the width of the channel in the panel. A similar channel is formed at the opposite edge of the sheet by line heating elements 80, 81 on a carrier 82 bolted to the head 46 together with a former 83 and folding head 85, operating in like manner. In a modification the line heating elements are replaced by an inverted rectangular channel-shaped metal member housing an electrical heating element.
Patent GB-1285538-A (GB)
Title: Motor vehicle heating and ventilating unit
IPC: B60H1/00
Filed: 1971-04-19
Abstract: 1285538 Heating and ventilating motor vehicles FIAT SpA 19 April 1971 [26 March 1970] 24409/71 Heading F4V  A motor vehicle heating and ventilating unit comprises a casing enclosing an inlet chamber A having a fresh air inlet 10, a mixing chamber B housing a heater 17 supplied with engine coolant and a fan 18, and an outlet chamber C, C<SP>1</SP> communicating with the passenger compartment through an opening controlled by a pivoted flap 27, and through ducts 25 each having a rotatable outlet nozzle 26, the chambers A and B being separated by a partition 12 having two openings 13, 15 controlled by pivoted flaps 14, 16 and the opening 15 communicating with the heater 17. The flap 16 and a coolant control tap 17a for the heater 17 are controlled respectively by levers 34, 34<SP>1</SP> pivotally mounted about a common axis 35 within a housing 31 which extends into the outlet chamber C, C<SP>1</SP>. The casing is formed of interlocking plastics mouldings 7 and 8. The motor vehicle may have a front or rear mounted engine.
Patent GB-910516-A (GB)
Title: Sealed accumulator cells
IPC: H01M10/34
Filed: 1959-07-17
Abstract: 910,516. Batteries. ACCUMULATORENFABRIK A.G. July 17, 1959 [Oct. 8, 1958], No. 24687/59. Class 53. In a sealed alkaline accumulator, a positive of nickel contains 0.1-1% by weight of iron, iron oxide or hydroxide to stabilize it. The nickel and iron compounds may be co-precipitated from solution or the iron may be precipitated in the nickel mass. The negative may be stabilized with a known inorganic addition or with an organic high polymer such as p.v.a.
Patent GB-172099-A (GB)
Title: Improvements relating to gas fired kilns
IPC: F27B13/02
Filed: 1920-08-28
Abstract: 172,099. Morton, J., and Morton, H. Aug. 28, 1920. Dampers; gaseous-fuel kilns.-In a semi-continuous kiln the openings a in the partition walls between the chambers are controlled by externally operated dampers comprising fireclay or other refractory slabs a<1>, spaced apart by slabs a<2>, registering with the openings a, the slabs a<1>, a<2> being held between an angle bar a<3> and a clamping-strip a<4>. Flanged rollers a<5> supporting the angle bar a<3> are situated below the kiln floor in a trough covered by fire bricks a<7> through which project the inclined slabs a<1>, the rollers and clamping rails being thus protected from the heat. The operating means comprise a forked pivoted lever a<9>, engaging, at its extremities, with the angle bar a<3> and a nut a<16> on the screwed handwheel shaft a<14>. In a modification, a lever engages with spaced holes in the angle bar a<3>, suitable fulcrums being provided. The gas is . supplied, through perforations c in the floor of each chamber, from transverse ducts C which may be connected to a common gas main C<1> by a U-shaped portable pipe c<1> which is placed over upwardly directed connections c<3>, c<5> to the ducts C and the gas main C'. A common smoke flue O is provided with which each chamber communicates through damper-controlled openings in the front and back walls.
Patent GB-1517534-A (GB)
Title: Roller apron for continuous casting plant
IPC: B22D11/128
Filed: 1975-06-10
Abstract: 1517534 Roller conveyers SCHLOEMANN SIEMAG AG 10 June 1975 [11 June 1974] 24915/75 Heading B8A [Also in Division B3] In a roller apron for removal of a continuous slab in a casting plant, the successive pairs of rollers 4, 6, Fig. 2 or 5, 7, Fig. 5, in sections of the apron, provide a sequence of alternating rollers of larger and smaller diameter each mounted in two bearings 33, 23 or 24 in Fig. 5, the bearings 23, 24 of the larger rollers being outside the span b of the slab path of the apron and the bearings 33 of the smaller rollers being disposed so at least one is within the span b. The shortening of the alternate rolls 4 or 5 is possible because of the self-supporting effect of the slab at its edges and permits the use of the smaller diameter. The resultant reduction of roller spacing and of unsupported middle area allows the casting rate to be raised. In Fig. 2 four pairs of rolls are mounted in an apron segment in a pair of yokes each consisting of two end plates 10, 11 joined by crossmembers 12, 13 on which are mounted the smaller rollers 4. The larger rollers 6 have their ends mounted in the end plates. The plates at each end are mounted on a column 15, the top ones 10 being attached to sleeves (16) guiding the top yoke on the column and carrying spacing-adjusting, hydraulic cylinders 17 whose piston rods are attached in the columns 15. Spacers 18 determine the spacing of upper and lower rollers according to the slab thickness. There may be three instead of four rollers in each yoke, e.g. with a large roller flanked by small ones so that the juxtaposition of successive apron segments provides pairs of consecutive small rollers. In Fig. 5 the rollers are not yoked in segments. The bearings 23, 24 for the larger rollers 7 and cross-members 31, 32 carrying the cooled bearings 33 of the smaller rollers 5 are located between side frames 21. The bearings 23 are each supported by way of an hydraulic buffer 25 on a pin 26, while the upper bearings 24 are each carried by a piston rod 27 from a cylinder 28. The lower and upper cross-members 31 and 32 are similarly on buffers 34 and cylinders 36. Spacers 37 determine the distance between the members 31, 32 according to the slab thickness. In the lower, withdrawing and straightening part of the apron, the bottom large rollers 7 have couplings 19 for a drive. To contact the slab faces near its edges and lessen deflection of the middle part of a small roller, rings may be borne by journals of the rollers extending through the bearings, Fig. 6 (not shown).
Patent GB-775123-A (GB)
Title: Improvements in roller-grinding attachments in textile carding engines
Inventor: STOTT ALBERT ADAM
IPC: B24B19/18
Filed: 1954-08-27
Abstract: 775,123. Grinding-rollers of textile carding machines. T.M.M. (RESEARCH), Ltd. Aug. 19, 1955 [Aug. 27, 1954], No. 24955/54. Class 60 [Also in Group IX] A textile carding machine with bearing brackets on its frame for supporting a grinding roller adapted to operate on one of the principal carding cylinders is provided with additional brackets for temporarily supporting a small diameter roller for simultaneously grinding by the same grinding roller. The additional brackets 19 are adjustably mounted on arms 18 of brackets 13 on which the grinding roller 14 is mounted. Drive to the 204 small diameter roller 20 is by belts from a pulley 110 on the main cylinder shaft, through the doffer pulley 111 and a temporary pulley 120 on the small diameter roller. The grinding roller 14 is driven directly from a pulley 210. If desired, several additional brackets may be provided to allow more than one small diameter roller to be ground simultaneously.
Patent GB-259595-A (GB)
Title: Improvements in or relating to printing presses
IPC: B41F3/80
Filed: 1925-08-29
Abstract: 259,595. American Type rounders Co., (Assignees of Kelly, W. M.). Sept. 19, 1924, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cylinder machines. -In a cylinder machine in which the impression cylinder is oscillated by means, such as a rack 36 on the bed, engaging a gear wheel 37 mounted on the end of the cylinder, rotary motion is transferred from the wheel 37 to the cylinder by means of a link 38 pivoted to the wheel 37 and to the cylinder. The wheel 37 is mounted on a sleeve 42, which has an eccentric opening surrounding a hub 33<a> of the cylinder to permit the cylinder to be tripped on the return stroke of the bed by means of eccentric bearings 43.
Patent GB-485263-A (GB)
Title: Improvements in or relating to adjustable easy chairs
IPC: A47C1/028
Filed: 1937-09-14
Abstract: 485,263. Adjustable easy chairs. GOMME, Ltd., E., and GOMME, E. D. Sept. 14,1937, No. 25006. [Class 52 (ii)] An adjustable easy chair comprises a base frame 2, a rigid combined back and seat unit 5, adjustable on the frame by backward and forward sliding movement, with means rendered effective by the normal weight of the seat, with or without that of an occupant, for restraining forward movement of the seat unit while freely permitting backward movement. The arrangement is such that the unit has a tendency to move forwardly, and the restraining means is such that it may be rendered ineffective, in order to allow the unit to move forwardly to an adjusted position, by relieving the pressure of the unit on the base member. The seat and back unit is supported at the rear on a cross-bar 6, Fig. 7, or rollers 15, and at the front rests on rollers 9, Fig. 4, the axles of which float in inclined slots in plates 11. The forward thrust due to the weight of the unit causes the rollers 9 to bear against a cross member 4 of the frame so as to bind and prevent further movement except when the weight is taken off by tilting the seat. Rearward movement is freely possible, since the rollers then move away from the member 4. The seat and back unit is preferably of the shape shown, and an extending foot rest 13, Fig. 1, as described in Specification 485,262 may be provided.
Patent GB-1131571-A (GB)
Title: Multi-color screen printing
IPC: B41F15/08
Filed: 1966-06-06
Abstract: 1,131,571. Screen printing processes. ADVANCE PROCESS SUPPLY CO. 6 June, 1966 [28 July, 1965; 21 Oct., 1965], No. 25025/66. Heading B6C. In a multi-colour screen printing process a thixotropic ink is used at each printing station and no provision is made for intermediate drying, the inks subsequent to the first being applied to the still wet imprinted object through stencils each of which incorporates a spacing screen the function of which is to prevent the already applied ink from contacting the associated stencil. The spacing screen is of such a size, mesh and material that the inks used do not adhere. Suitable materials are said to be nylon, stainless steel, polyesters and polytetrafluoroethylene. In the two-colour sheet-fed stencilling machine shown in Fig. 10 pivotally mounted screens and associated equipment 43, 44 are operatively engageable with printing frames 37, 38 respectively. Each frame includes a vacuum table for holding each paper copy sheet 7 during the printing stroke of the relevant squeegee. The machine is automatically driven by a motor 50, the sheets 7 being intermittently fed to and from the two printing stations by a chain drive 40 carrying sheet gripper means 41, 42. The movement of the chain drive 40 derives from the reciprocating motion of a carriage 67 which has pusher members 69 engageable with the parts 41 of the gripper means. Registration of the sheets at the printing stations is effected by interengaging pins and holes associated with the printing frames 37, 38 and the gripper means. The screen assembly 44 incorporates a spacing screen 14, Fig. 6. Three or more printing stations may be provided and Fig. 14 shows a machine in which sheets 218 are carried by grippers 217 along an endless band 201 through three such stations, each comprising a reciprocable screen arrangement and an impression member in the form of a cylinder. In a further construction of screen arrangement at each printing station subsequent to the first the spacer screen is in the form of an endless band which is caused to intermittently move across the face of the printing stencil' so that a clean spacer screen surface is provided for each impression. The arrangement also incorporates means by which the used part of the band may be cleaned before re-use.
Patent GB-1041757-A (GB)
Title: Improvements relating to automatic telephone exchange systems
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H04Q3/00
Filed: 1964-06-17
Abstract: 1,041,757. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 9, 1965 [June 17, 1964], No. 25080/64. Heading H4K. In a sectionalized marker-controlled exchange of the kind described in Specifications 989,336 and 999,945, inter-sectional link circuits are connected on each side with two junctions of the network one of which junctions has access to subscribers' lines and the other of which has access to inter-exchange trunks, either junction on one side being connectible to either junction on the other side either by way of a feed bridge circuit, as required for local and incoming trunk calls, or by way of a through path, as required for outgoing trunk calls and transit calls. Both the feed-bridge and the through path may be employed for separate calls at the same time. The feed-bridge, described in detail with reference to Figs. 9 to 11, not shown, is seized from the marker by a 10 ms. pulse the appearance of which on one or other side of the circuit determines which way the bridge faces. A pulse of 5 ms. indicates whether the call is local or incoming according to its appearance on the ring or tip conductor on the normal calling side of the circuit. Another and concurrent pulse of 5 ms. indicates whether the call is for an X or Y party to a party line according to the polarity of the pulse. Should the marker produce a conflicting command by indicating that the feed bridge face in both directions at once or that the wanted party is of both X and Y type, the link is self-releasing as it is if either party fails to hang up. To cope with the short duration of the command pulses ferried switches are employed in the link. The through path bridges arc symmetrical, Figs. 13 and 14 (not shown), and may provide line splitting.
Patent GB-224351-A (GB)
Title: Improved feed mechanism for coffee pulpers and the like
IPC: A23N5/00
Filed: 1923-10-10
Abstract: 224,351. Bentall, E. E., Bingham, G. C., and Ugarte, J. P. Oct. 10, 1923. Feeding-devices for granular and like materials. -A feeding-device for coffee pulpers &c. comprises one or more endless bands passing over driving-wheels and carrying paddles or sweeps to engage the coffee cherries &c. floating in a water trough and discharge them into a delivery shoot. As shown, the flat, serrated, or forked paddles or sweeps b are mounted on bars b<1> carried by endless chains c which pass over wheels d and a fixed block c'. The paddles are preferably fitted at their outer ends with adjustable lips e of rubber &c. to engage the floating coffee cherries and push them over the discharge baffle a<1> in the water trough a into the delivery shoot a<2> without crushing them. The paddles may be arranged so that they can be turned back on the bands and thrown out of action when desired.
Patent GB-157536-A (GB)
Title: Improvements in magneto hand lamps
IPC: F21L13/08
Filed: 1919-10-15
Abstract: 157,536. Railing, A. H., and Angold, A. E. Oct. 15, 1919. Magneto electric machines; magnetos driving. -A hand lamp operated by a magnet is provided with field magnets a, a<1> bolted to a non-magnetic block k and a magnetic block c which is recessed and threaded to receive the bulb d<1>. Side plates fixed to the blocks k, c and against which the magnets a, a' bear complete the casing. The armature b is driven by a hand lever e which embraces the casing at its apper end, the two sides of the lever being connected by pins f<1>, f<2>. The pin f<1> acts as a pivot, the pin f<2> serving as a driver for a toothed quadrant f which engages a train of wheels to which the armature is connected. The edges of the lever e are curved away from the dynamo casing to prevent trapping of the fingers.
Patent GB-205491-A (GB)
Title: Improvements in or relating to hydro-aeroplanes
IPC: B64C17/08
Filed: 1923-10-10
Abstract: 205,491. Wattier, L. Oct. 13, 1922, [Convention date]. Leakage, removing.-The hull of a seaplane is provided in its lower portion with water-tight compartments in the form of longitudinal tubes which automatically fill with water to the extent desired by the pilot when the machine alights so as to increase its stability as a marine vessel. Longitudinal vertical partitions in the tubes prevent undue lateral displacement of the water when they are partially filled. The compartments are arranged in the forward part of the hull so that the main planes assume zero incidence when the machine is at rest, thus facilitating the action of the tail planes in keeping the machine head to wind. When flight is to be resumed the compartments are emptied. The compartments, of which the rear end of one is shown in the Figure, comprise parallel tubes closed at their front ends and provided at their rear ends with boxes 3 having hinged flaps 4 opening inwards. When the machine alights, water enters passages 6 and pressing open the flaps 4 enters the tubes 1 which are air vented. When the tubes are filled the flaps 4 close by their own weight and can only be opened by raising a rod 7 which is connected to the flaps by links 8. Simultaneously with the raising of the rod 7 a fan may be started to blow out the water. The same fan may be utilized to withdraw air from the chambers 1 to assist in filling them. The rod 7 may be connected to the free edges of the flaps. When starting flight the lateral compartments may be first emptied and the rest discharged when the machine has gained sufficient speed. Specification 182,461 is referred to.
Patent GB-1599916-A (GB)
Title: Cementitious cartridge for rock-bolting
IPC: E21D20/02
Filed: 1978-05-31
Abstract: A frangible cartridge for anchoring a reinforcing element such as a rock-bolt in a borehole in rock strata, for example an underground mine roof, contains as separate components (A) a hydraulic substance mixed with a non-aqueous water-miscible liquid which is inert with respect thereto to form a paste-like mass and (B) an aqueous liquid, preferably water, which is capable of reacting with the hydraulic substance in component A on being brought into contact therewith when in use a reinforcing element is caused to break the cartridge and mix together components A and B within the borehole so as to form a cementitious grout around the reinforcing element, said grout serving when hardened to anchor the reinforcing element in the borehole. This cartridge is safer for use in coal mines and the like than the conventional resinous cartridges and is more reliable than cartridges in which the hydraulic substance is present in a dry form.
Patent GB-1183065-A (GB)
Title: Process for Cold-Working Materials
IPC: C10M173/02
Filed: 1967-06-01
Abstract: 1,183,065. Block copolymers. BADISCHE ANILIN- & SODA-FABRIK A.G. 1 June, 1967 [2 June, 1966], No. 25319/67. Heading C3P. [Also in Division C5] An aqueous solution comprises a block polymer in which the central block is an acrylamideammonium acrylate copolymer and the terminal block is poly (sodium vinyl sulphonate) and an ester of boric acid and glycerol, ethylene glycol, triethylene glycol or propyl diglycol.
Patent GB-253901-A (GB)
IPC: D01H5/22
Abstract: 253,901. K³bler, E. June 17, 1925, [Convention date]. Rollers and roller heads.-In drawing-apparatus for spinning-machines of the kind wherein the middle lower roller 2 is provided with two pressing-rollers 5, 6, the rollers are arranged so that the tangents at the nips of the front roller 4 and of the roller 5 coincide or practically coincide, the back pressure roller 7 is vertically above the back roller and the nip is higher than that of the rollers 6, and the lines joining the centres of the rollers 5, 6 to the centre of the roller 2 make equal angles a, a<1> with the vertical. The roller 6 is heavy and may be weighted so as to ensure a delimitation of the preliminary draft and the main draft. The roller 5 is mounted between cheeks 8, 9 of a sheet-iron claw adjustably secured by a screw 12.