baber/WOPTO huggingface dataset:
Patent GB-1077816-A (GB)
Title: High speed electrical shutter arrangement
IPC: H01S3/00
Filed: 1965-03-31
Abstract: <FORM:1077816/C4-C5/1> A shutter arrangement responsive to a flash of light to prevent transmission of the flash comprises a light-sensitive device to detect the flash of light, a differentiating circuit responsive to the leading edge of the output pulse corresponding to a flash and a photochromic screen which is rendered opaque to the flash in response to ultra-violet radiation from a flash tube energized when the differentiated signal is above a predetermined level. The screen comprises two quartz wedges 13, 14 carrying layers of the photochromic material and layers of conducting material through which current may be passed to heat the photochromic material to restore its transparency.
Patent GB-664633-A (GB)
Title: Improvements in or relating to centrifugal fans, blowers or the like
IPC: F04D29/44
Filed: 1949-05-24
Abstract: 664,633. Centrifugal fans &c. KARRER, J. May 24, 1949 [May 25, 1948No. 13838/49. Class 110(i) A centrifugal fan or the like includes a spiral casing providing an undivided air discharge passage comprising a main portion and an initial portion of less width. The casing is of increasing radial depth from inlet to outlet. The initial Dart I of the flow passage extends over from # to “ of the circumference and has a constant width c which is preferably substantially equal to the outlet width of the impeller. The transition to the full width b may be abrupt or by means of oblique walls d which extend round of the circumference. The casing may assume the width b only after the end of the parts I and d. The part d may be integral with the casing instead of being inset within it. The fan may have two suction openings, and the casing section may have rounded outer edges or may gradually become circular.
Patent GB-419670-A (GB)
Title: Manufacture of azo dyestuffs
Filed: 1933-05-12
Abstract: Azo dyestuffs are manufactured by coupling a diazotized 3<1>-aminobenzyl-o-benzoic acid, the benzyl nucleus of which may carry one or more additional substituents other than a sulphonic acid group, with any of the coupling components mentioned below.  The diazo-component is preferably a compound of the general formula <FORM:0419670/IV/1> where R is hydrogen, halogen, alkyl or alkoxyl, and where the benzyl nucleus may have further substituents besides R. The products dye animal fibres, particularly wool, bright shades which undergo little change on after-chroming, merely becoming more intense and duller.  In examples, 3<1> - amino - 4<1> - methoxybenzyl - o - benzoic acid is diazotized and coupled with: (1) the mono-sodium salt of N.W. acid; (2) acetyl J-acid; (3) 1-(2<1> : 5<1>-dichloro-4<1>-sulphophenyl) - 3 - methyl - 5 - pyrazolone.  The products dye wool respectively bright red, bright yellowish-red and bright golden yellow shades, becoming somewhat deeper on after-chroming.  A table gives the shades produced on wool by the following dyestuffs: 3<1>-amino-4<1>-methoxybenzyl-o-benzoic acid --> 2-phenylamino-5-naphthol-7-sulphonic acid, 1-acetylamino - 8 - naphthol - 3 : 6 - disulphonic acid, 2 - acetylamino - 8 - naphthol - 6 - sulphonic acid, 2-naphthol-6- or 7-sulphonic acid, 1-naphthol-5- or 3-sulphonic acid, 2-naphthol-6 : 8-disulphonic acid, b -naphthol, 2-aminonaphthalene - 6 - sulphonic acid, 2-naphthol-3 : 6-disulphonic acid, 1 : 5-dihydroxynaphthalene or 1-p-tolylaminonaphthalene-8-sulphonic acid; 3<1> - amino - 4<1> - chlorobenzyl - o-benzoic acid --> 1-naphthol-4-sulphonic acid, 1 - naphthol - 3 : 8 - disulphonic acid or 1 - (2<1> : 5<1>-dichloro-4<1>-sulphophenyl)-3-methyl-5-pyrazolone; 3<1>-amino-4<1>-methoxy-6<1>-chlorobenzyl-o-benzoic acid --> 1-naphthol-4- or 5-sulphonic acid, 1-naphthol-3 : 8-disulphonic acid, b -naphthol, 2-phenylamino-8-naphthol-6-sulphonic acid or 1-(2<1> : 5<1>-dichloro-4<1>-sulphophenyl) - 3 - methyl - 5 - pyrazolone. Halogenated phenylmethylpyrazolones are also specified as coupling components.  Specification 314,804, [Class 2 (iii)], is referred to. The Provisional Specification comprises in general the use any aminobenzyl-o-benzoic acids, in which the amino group is attached to the ring of the benzyl residue, as diazo components, and of any coupling components.
Patent GB-1219786-A (GB)
Title: Improvements in or relating to presses
Inventor: KENNERLEY CYRIL
IPC: B30B1/34
Filed: 1968-03-22
Abstract: 1,219,786. Compression moulding; hydraulic press. E.R.F. ENG. Ltd. 17 March, 1969 [22 March, 1968], No. 13937/68. Headings B5A and B5F. A press, for particular use in cold compression moulding plastics articles, comprises a table 2 actuated by a long stroke pneumatic or hydraulic cylinder device 4, an upper platen 5 connected to the table by chains 7 running over pulleys mounted on the press frame 1, and a lower platen 13 mounted upon the table by hydraulic piston and cylinder devices 14. In operation, the table is raised from the loading position by device 4, this causing the upper platen to be lowered, and movement is continued until the desired spacing between the upper and lower platens has been reached. The upper platen and the table are then locked against relative movement and movement with respect to the press frame, and the lower platen then raised relative to the table to effect the pressing by devices 14. The initial separation between the platens is adjustable by means of tubular spacers 10, carried by the ends of chains 7, between any pair of which spacers a C-plate 12, carried by each corner of the table, is insertable. The platen and table are locked relative to one another and to the frame after their initial movement by means of apertured beams 15 depending from the upper platen and piston operated bolts 18 carried by the table and adapted to pass through the appropriate aperture 16 in the beam and into a corresponding aperture 19 in the press frame.
Patent GB-928064-A (GB)
Title: Improvements in or relating to roller tables
Inventor: STUBBS DENNIS
IPC: B21B39/12
Filed: 1961-04-18
Abstract: 928,064. Rolling. DAVY & UNITED ENGINEERING CO. Ltd. April 4, 1962 [April 18, 1961], No. 13939/61. Class 83 (4). A roller cooling table has some at least of its rollers reciprocally rotated so that a workpiece on the table is given a reciprocatory motion for uniform cooling of the lower surface of the workpiece. Rollers 13 and 14 are driven from a spur gear 30 having a crank 26. The drive from a motor 20 through a gear-box 22, crank 21 and link 24, gives the crank 26 an arcuate reciprocating movement. Further rollers 12 and 15 may be connected by chains 34 to the rollers 13 and 14.
Patent GB-377186-A (GB)
Title: Improvements in miners' and garage safety lamps
IPC: F21L23/00
Filed: 1931-03-19
Abstract: 377,186. Miners' and garage safety lamps. HAIL WOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. March 19, 1931, No. 13979/32. Divided on 378,904 and addition to 276,771, [Class 75 (iv), Lamps &c., Kinds &c. of]. [Class 75 (iv).] In a miners' or garage safety lamp provided with means for indicating the presence or absence of the gauzes, as described in the parent Specification, aprons bearing suitable wording depend from each of the gauzes and part of each apron is adapted to be covered by part of the other. In the form shown, the outer and inner gauzes A, A<1>, Figs. 4 and 5, carry depending metal aprons B, B<1> bearing on their inner surfaces the wording shown, the apron B<1> being formed with a flap B<2> adapted to overlap part of the apron B. Fig. 2 indicates the correct assembly of the gauzes, the indications being viewed through the lamp glass. Alternatively, the aprons may be adapted to carry the wording on the outside. The aprons are preferably disposed outside the lamp glass and may be received by a shield depending from the bonnet ring R. The aprons may be formed as reflectors, and means, such as lugs on a flanged ring carry. ing the combustion tube, may be provided for ensuring the correct position of the gauzes and to prevent their rotation. Specification 378,904 is referred to.
Patent GB-916366-A (GB)
Title: Improvements in and relating to semi-conductor devices
Inventor: WOOD ALAN JOHN
IPC: H01L21/00
Filed: 1958-05-01
Abstract: 916,366. Semi-conductor devices. ENGLISH ELECTRIC CO. Ltd. April 30, 1959 [May 1, 1958], No.13986/58. Class 37. In a silicon molybdenum rectifier the material forming the ohmic joint is an alloy of gold, antimony and silver having a composition matched to the material forming the rectifying junction joint so that the soldering temperature is the same for both joints. As shown, the rectifying junction between the molybdenum disc and the silicon disc is formed by an aluminium silicon eutectic alloy foil containing 11 to 12% silicon. The melting-point of the alloy is 577‹ C. Between the silicon disc and the lower molybdenum disc is a foil thickness 0.002 inch containing gold antimony in the ratio 99: 1. The melting-point of this alloy is 500‹ C. A coating of silver of thickness 0.001 inch on the lower molybdenum disc raises the melting temperature to match that of the alloy at the junction. The whole assembly is said to make a satisfactory rectifying device when fired at 600‹ C. Specifications 796,682 and 916,365 are referred to.
Patent GB-1448959-A (GB)
Title: Process for the deodorisation of air containing foul-smelling constituents
IPC: B01D53/38
Filed: 1974-03-29
Abstract: 1448959 Deodorising gases SUDOLDENBURGER TIERFRISCHMEHL-ANLAGEN GmbH & CO KG 29 March 1974 [30 March 1973] 14052/74 Heading A5G Air-contaminated with foul-swelling constituents, e.g. from cattle sheds, fish meal factories and animal utilising plants, is deodorised by contacting the air with an acid-forming gas (i.e. a gas, such as chlorine or SO2, which forms aqueous acid when dissolved in water) and with an aqueous suspension of one or more alkaline earth metal (e.g. Ca or Mg) carbonates. In the apparatus shown, the air enters via the inlet 8 (supplied by fan 9) and ascends the tower 1 to the exit 21 (or vice versa), whilst an aqueous suspension, e.g. of CaCO3, is sprayed from sprays 5 from the top of the tower and percolates through grates 10 and 11 supporting pieces of limestone, thus contacting the air and collecting at 13 and being recirculated by the pump 6. The acid-forming gas may be introduced with the suspension or it may be mixed with the incoming air to be treated.
Patent GB-202407-A (GB)
Title: Improvements in metal final supports for use in photographic transfer processes
IPC: G03C11/12
Filed: 1922-05-18
Abstract: 202,407. Ellis, T. W. May 18, 1922. Bichromated colloid processes; ornamental photographs.-A final support for transfers comprises a metal sheet coated with a pigment polished to present a homogeneous surface and acting in the nature of a cushion. The coating may be in two layers, an undercoat of pigment such as a mixture of ground lead carbonate and barium sulphate in linseed oil, turpentine, and lead acetate, with or without gold size, and an outer coat of pigment such as a mixture of white lead and zinc oxide in varnish, each layer being allowed to dry thoroughly, or stoved. The final surface is polished, as with friction rubbers charged with rotten stone and tin oxide. Alternative pigments mentioned are whitening and lithophone, but any pigments compounded in water, spirit or oil may be used. The metal surface may receive a preliminary coating by electrical or mechanical deposition, or may be sand-blasted to form an ornamental surface. A support so prepared may have applied to it under pressure a transfer paper which has received its subject by being brought into contact with a negative or print, the whole being then immersed in a solvent and the paper back stripped off, leaving the silver emulsion or other sensitive layer on the support. The image may then be developed if necessary.
Patent GB-312158-A (GB)
Title: Improvements in and relating to sheet-feeding apparatus for printing machines
IPC: B65H3/08
Filed: 1929-05-07
Abstract: 312,158. Rockstroh, W. May 21, 1928, [Convention date]. Sheet-separators.-In a, sheet-feeding machine of the kind in which the front edges of the sheets of a pile are fed by suction members over a feedtable to the impression cylinder of a printing machine, the rear edges of the sheet are separated by means of one or more tilting and rising suction members 3, which from the contacting position shown in Fig. 1, are first tilted by means of a cam 5 and lever-and-link mechanism 7, 8, 9, and then raised by a cam 19 acting on slotted links 11 which carry the suction members. To prevent double feed, a pivoted suction holding device 16 carried by a tube 15, mounted in oscillating arms 14, is moved by a cam 19 from its position at the rear of the pile, shown in Fig. 1, to the position shown in Fig. 3. as soon as the suction members 3 are raised. The movement of the device 16 is guided by a lever arm 18 having a roller guided by a fixed slot 17. The device 16 holds the sheet next to the top one as the top sheet is being forwarded by the front suction members.
Patent GB-1260266-A (GB)
Title: Pushbutton device
IPC: H03J5/32
Filed: 1970-03-24
Abstract: 1,260,266. Locking. SONY CORP. 24 March, 1970 [27 March, 1969 (2); 18 April, 1969; 19 April, 1969], No. 14349/70. Heading E2A. [Also in Divisions F2 and H1] A plurality of push-buttons 14a-e Figure 1, operating switches or valves and biased to an inoperative position are held in the operated position by detent balls 30a-e engageable in detents as 28a,b Figure 4, the balls 30a-e being interconnected by sliding members 32 which transmit sufficient transverse force to one of the balls (as 30c shown) to hold one member 14c operated (as shown Figure 1) but on operation of a second actuator (as 14d) to permit the associated detent balls 30b to move to its latching position (shown latched) and thereby releasing the load on ball 30c to release the previously actuated member 14c. In the example shown in Figure 1 the members 32 have wedged faces 34 and are yieldingly held in compression between adjusting screws 42 in a casing 12, 13 of a slightly resilient plastics material. In alternative embodiments the members 32 may be replaced by one or more additional balls 58 Figure 5 arranged out of alignment with the balls 30a-e so that the latter are forced towards the detent recesses 28b. In another embodiment the switches may be arranged in a ring surrounding a number display tube (74) Figure 7 (not shown) which indicates the operated switch. Other embodiments are described in which individual switches are joined together by threaded or bayonet type pivotal couplings 8 through which individual force transmitting elements for each switch unit extend.
Patent GB-180678-A (GB)
Title: Improved sprayer or atomizer
IPC: B05B11/06
Filed: 1922-05-23
Abstract: 180,678. Blanc, L. May 25, 1921, [Convention date]. Air-pressure sprayers.- An atomizer comprises a reservoir a provided with compression means d directly connected thereto and one or more spraying- tubes b, bent at b<1> to face a hole a' in the wall of the reservoir. The compression means may comprise a stretched membrance or a rubber bulb d without an inlet valve, retained in position by means of the inturned rim a<2> of the reservoir. In order to prevent escape of the liquid when the sprayer is not in use, a perforated rotatable ring c<1> may be employed to close the opening a<1>, which may be formed of several holes or as a slit. In place of a bulb or membrane, the compression means may consist of a spring- pressed sliding cover which acts as a pump piston.
Patent GB-621866-A (GB)
Title: Building construction
IPC: E04C2/04
Filed: 1946-05-14
Abstract: 621,866. Building-slabs; walls. GRAY, W. A. May 14, 1946, No. 14554. [Classes 20(iv) and 87(i)] A wall comprises slabs 1 having in their vertical side faces, in addition to central mortar grooves 2, small grooves 3 in which are placed corrugated metal strips 4. The slabs may comprise facing layers of hard concrete and plaster and a central layer of porous concrete and may be reinforced. The top and bottom edges of the slabs may be rebated. Specification 549,659 is referred to.
Patent GB-101782-A (GB)
Title: Improved Apparatus for Expressings Liquid from Materials containing the same.
Inventor: HINCHLEY JOHN WILLIAM
IPC: C10G5/04
Filed: 1915-05-13
Abstract: 101,782. Hinchley, J. W., and Gorton, G. March 13, 1915. Peat, preparing.-A press for expressing liquids from peat and other fibrous and carbonaceous materials is provided with means for passing steam, hot or cold air or other gaseous fluid through the peat in a direction at right-angles to the movement of the piston. The press comprises cylinders 5, 5<1>, and annular pistons 4, 4<1>, 4". The cylinder walls have drainage grooves 5<a> covered by strainers and leading to discharge pipes 34, 33. Steam &c. is admitted through a pipe 29, conr.ected by screwed caps 12' to a hollow ring 24 and pipe 11, which have perforated tops covered by strainers secured by caps 25, 13. The ring and pipe also serve for discharging liquid. To equalize the pressure, the cylinder 5' and preferably the ring 4 are not carried up to the press-head 9<1>, between which and the cylinder may be provided a cover running on rails. A simpler form of press having a single cylinder, piston, and tube 11 is described. Specification 24819/11 is referred to. In treating peat, the liquid is expressed by first applying a pressure of 1000 lb., then passing steam &c. through the material in the press, and finally applying a pressure of say, 1500 lb. During the passage of the steam &c., the pressure may remain at 1000 lb. or be reduced to, say, 200 lb. or zero, or be increased. The final product, if powdered and dropped through the air, loses further moisture, but the cakes may be used as such or carbonized to obtain by-products. In order that the peat may comprise a substantial quantity of fibre, a mixture of upper and lower bog is used.
Patent GB-126998-A (GB)
Title: Improvements relating to Aeroplanes.
Inventor: ARNOUX RENE
IPC: B64C25/48
Filed: 1916-10-17
Abstract: 126,998. Arnoux, R. Nov. 16, 1915, [Convention date]. Land wheels; steering.-Relates to aeroplanes cf the kind provided with brake gear adapted to retard the wheels at opposite sides of the landing chassis either equally or differently, so that the machine may be steered as well as braked. According to the invention, the brakes a<1>, a<2>, which may be of band or other form, are operated by levers c<1>, c<2>, the handles of which are so constructed that by grasping the centre portion both the levers can be operated simultaneously, whilst by grasping one of the side portions the levers can be operated separately. The lower part of the levers may be provided with pedals. The device is suitable for use with aeroplanes not provided with a vertical rudder; it may, however, be used with machines having rudders, in which case the transmission mechanism of the brakes may be so connected to the rudder-operating mechanism that the rudder and brakes act in conjunction.
Patent GB-543337-A (GB)
Title: Antenna systems
IPC: H01Q21/10
Filed: 1940-09-30
Abstract: 543,337. Aerials. STANDARD TELEPHONES & CABLES, Ltd. Sept. 30, 1940, No. 14736. Convention date, Jan. 26. [Class 40 (v)] Relates to aerials for short-waves giving maximum radiation in the equatorial plane, of the kind comprising several co-linear half-wave antennae energized in the same phase, the opposite phase being eliminated by folding the antenna wire; and consists in forming the folded portions by attaching to the antenna at half-wave intervals one or more sleeves each a quarter wave long. As shown in Fig. 1B the quarterwave sleeves 2 are attached to the aerial 1 at points 3 half a wave-length apart, so that their inner surfaces form with the enclosed portions of the aerial a folded half-wave line, from which the radiation is suppressed. The aerial thus comprises in effect a number of half-wave aerials all energized in the same phase as indicated by the current distribution curves 16. Connections are made to the wave source or receiver 4 at the base of the aerial 1 and at a point on the lowermost sleeve 2. In a modification the aerial 1 is tubular and is fed by an internal concentric line the inner member of which is connected by short radial leads to alternate sleeves (Fig. 2, not shown). The aerial may be in the form of a tapered lattice structure and the sleeves may comprise openwork cage structures (Figs. 3A and 3B, not shown). The aerial shown in Fig. 4B comprises a series of superposed quarter-wave tubes decreasing in diameter towards the top, and with alternate tubular sections enclosed by sleeves 42. Alternate sleeves are connected by radial leads 47 to an axial line 45 which together with the inner surface of the tubes forms a con centric feeder. The transmitter or receiver is connected to a low-impedance line 51 which is matched with the aerial impedance by connecting its inner wire 53 to a point 54 situated a suitable distance above the end-plate 50 of the aerial structure.
Patent GB-492704-A (GB)
Title: Improvements in or relating to index-card assorting devices
IPC: B42F17/08
Filed: 1937-05-27
Abstract: 492,704. Filing papers. GORBOLD, S. H. May 27, 1937, No. 14772. [Class 146 (i)] A device for filing or sorting papers comprises index cards or separating members 16 having at their lower edges spindles 17 engaging at their ends holes 15 in spacing blocks 14 mounted in a tray 10 ; each block has two or more holes whereby changing the positions of the blocks, i.e. turning them through 90‹, the spacing of the cards can be varied. The blocks 14 are slidable between flanges 11 on the tray 10 and a packing strip 13 extending the full width of the tray and supported by distance pieces 12, clamping-screws 18 normally preventing movement thereof. The different depths occupied by the blocks in their two positions is allowed for by additional packing strips. Specification 393,681 is referred to.
Patent GB-993817-A (GB)
Title: Braking mechanism
IPC: F16D55/224
Filed: 1963-04-16
Abstract: 993,817. Disc brakes. AIRHEART PRODUCTS Inc. April 16, 1963 [Feb. 11, 1963], No. 14787/63. Heading F2E. A self-adjusting disc brake for a kart, scooter, or other light vehicle, comprises a calliper housing 10 having lugs 11a, 11b for attachment to the vehicle either rigidly or to permit floating in the axial direction, a disc 13 associated with a vehicle wheel so as to permit axial floating (in the case of rigid mounting of the calliper) or rigidly (where the calliper is floating,) a pad 19 secured within a recess 18 of the calliper, a second pad 20 carried by head portion 22 of an actuator 21 axially slidable in a partially threaded bore 15 of the housing, an annular thrust plate 29 having lugs 31 engaging grooves 32 in the housing to guide it for axial movement in the bore 15 while preventing it from rotating, complementary recesses 35, 36 in the plate 29 and head 22 between which are located balls 37 whereby when the actuator 21 is rotated by a lever 48 the head 22 is forced away from the thrust plate to cause the pads 19, 20 to be applied to the disc, and automatic wear adjustment mechanism for adjusting the axial position of the thrust plate. The wear adjustment mechanism comprises an annular bushing 26 having a thread 27, to engage the threaded portion of the bore 15, and ratchet teeth 38, an advancing pawl 39 formed on a ring 40 having an inwardly directed lug 42 co-operating with a groove 43 in a shaft portion 23 of the actuator 21, the groove 43 being wider than the lug 42 to give lost-motion corresponding to the normal clearance of the brake pads, and a locking pawl 44 formed on a ring 46 having lugs 47 guided in the grooves 32, the pawl 44 extending through a cut-away portion 45 of the ring 40. A compression spring 52 located between the ring 46 and operating lever 48 urges the pawls into engagement with the teeth 38 and also acts as a release spring to withdraw the actuator 21 following an application of the brake. The arrangement is such that when the rotation of actuator 21 during application of the brake exceeds a predetermined amount the pawl 39 slips one of the teeth 38, and during subsequent release of the brake the pawl 39 rotates the bushing 26 by a similar amount to effect the required adjustment.