baber/WOPTO huggingface dataset:
Patent GB-1201680-A (GB)
Title: Multiple sheet glazing unit
Inventor: LEHR GLEN J
IPC: C03C27/12
Filed: 1968-04-26
Abstract: 1,201,680. Multiple-sheet glazing units. LIBBEY-OWENS-FORD CO. 26 April, 1968, No. 19796/68. Heading ClM. [Also in Division C7] In an all-glass multiple sheet glazing unit comprising spaced substantially parallel sheets 11 of glass fused together along their edge portions enclosing a space, with an apertured metal insert 14 fused to the glass and forming a passage communicating with the space, the insert comprises an alloy of iron, nickel and cobalt with less than 1% trace elements, the percentage content of the iron being a function of the linear thermal expansion of the glass for the range 32‹ to 975‹ F., with the cobalt content not substantially greater than one-third the nickel content. Chromium may also be present in amounts greater than or substantially one quarter of the cobalt content. The insert is sealed into the glass with a coating of glass of the same composition as the sheets. The sealing of the unit is carried out by sequentially passing the edges through gas flames to soften them and then through shaping and sealing rolls. With no chromium, it is preferred that the iron content falls within the range 47 to 51% by wt., when the thermal expansion varies from 43 x 10<SP>-4</SP> in./in. to 53 x 10<SP>-4</SP> in./in., and a suitable alloy may then contain 3 to 12% by wt. of cobalt. The cobalt content may fall within the range 11À5 to 14% by weight when chromium is present in the range 2.5 ta 4% by wt., and the iron content is then in the range 39-49% with thermal expansion as above. Several suitable specific alloy compositions are given.
Patent GB-467875-A (GB)
Title: Improvements in paints and pigments
IPC: C09D5/04
Filed: 1936-07-18
Abstract: A pigment, capable of forming a thixotropic paint with an oil vehicle in the presence of water, has its particles coated with gum arabic, metal salts of arabic acid, gum tragacanth, Irish moss, agar-agar, or dextrin, which substances are substantially insoluble in the oil-paint vehicle and are so much more easily wetted by water than by the oil paint vehicle, that water is capable of displacing oil from the surface of the pigment particles.  Specified base pigments are calcium sulphate, calcium carbonate, clay, silica, barium sulphate, lithopone and zinc oxide, and the hydrophile coating may be applied during the wet milling of the pigment, or by addition to a wet pigment slurry. The hydrophile coating-material is usually present in an amount of 1 per cent or less by weight on the weight of the pigment, and the thixotropic paint produced from the pigment usually contains about 1 per cent by volume of water.  Suitable vehicles are linseed oil, chinawood oil cooked with limed rosin or ester gum, and low acid-number fish oils.  An emulsifying agent, such as a water-soluble soap, sodium carbonate, borax, a sulphonated oil, a sulphonic acid or a fatty alcohol may be present in the paint. According to an example, in the preparation of a thixotropic paint, a slurry of muffled lithopone is ballmilled with a small amount of gum arabic, and the product filter-pressed, dried at 110 DEG  C., and disintegrated.  The coated pigment is then incorporated in a vehicle comprising chinawood oil, linseed oil, ester gum, mineral spirits, kerosene and a drier, and finally an aqueous soap solution is mixed therewith.  According to the Specification as open to inspection under Sect. 91, the hydrophile coating substances specified above are merely examples of suitable hydrophile coating substances.
Patent GB-232846-A (GB)
Title: Improvements in folding tables
Filed: 1924-08-25
Abstract: 232,846. Carpmael, A., (Ferguson Bros. Manufacturing Co.). Aug. 25, 1924. Securing flaps in relative positions. - Folding tables have legs pivoted to the top. each leg being in two hinged parts to fold together within the table top frame, the leg members being hinged to swing in planes at right angles to each other. A rigid diagonal brace 7 and a swinging brace 8 are provided. Means for locking the two leg members in line when unfolded comprise a screw 19 on the lower leg member 4, and on the leg member 3 a U-shaped slide 15 having inclined cam slots 16 into which project pins 17 on opposite sides of this leg member, so that the head of the screw is engaged by an open slot 18 on the slide.
Patent GB-317604-A (GB)
Title: Improvements in or relating to anorectal dilators
IPC: A61M29/02
Filed: 1928-07-11
Abstract: 317,604. Pratt, N. F. July 11, 1928. Heating and cooling appliances; specula and other dilating instruments.-An anorectal dilator comprises a non-expansible member interposed between an expansible member and a protective covering which encloses said members. In one form, Fig. 1, a bag 8 of non-expansible material encloses an ex. pansible soft rubber bag 7 and is enclosed in a soft rubber bag 9. The bags 7, 9 are secured upon a firm rubber core 1 having a channel 2 with apertures 3, 4 at each end and a valve 5 and a one-way valve 12 at the outer end to which the tube 5<a> of an inflation bulb 6 is attached. When the device is to be removed the valve 5 is opened to allow of deflation. In a modification, Fig. 5, the hollow core 16 has an inner tube 17 extending to the bulb 18, the core 16 communicating with a valve 20 through which the fluid flows or exhausts from the device. Air, water, or other fluid, heated or cooled, may be employed in the dilator.
Patent GB-205588-A (GB)
Title: Improvements in calendars
IPC: B43K29/087
Filed: 1922-07-24
Abstract: 205,588. Hauton, P. S. July 24, 1922.. Pencil, pen, and like point-protectors.-The cap of a fountain pen, pencil, &c. is composed of a plurality of members constituting a perpetual monthly calendar and comprises a base member 2, an inner member 8 movable transversely and longitudinally, and an outer member 4 movable transversely simultaneously with the inner member, said members having date indications and means for disclosing the year, month, and the day of the month or any month in a definite period of years. The inner and outer members are held on the base member 2 by means of a cap 3 engaging screw-threads on the end of the base member.
Patent GB-459872-A (GB)
Title: Improvements in telephone systems and automatic switches for use therein
IPC: H04Q3/00
Filed: 1935-07-16
Abstract: 459,872. Automatic exchange systems. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, TAYLOR, R., 30, Oulton Road, Wavertree, and BAKER, G. T., 31, Wharnecliffe Road, East, all in Liverpool. July 16, 1935, No. 20296. [Class 40 (iv)] The line relay A of a selector is provided with a third winding which serves to supply intermittent busy tone and to hold the relay during the busy flash periods when the line windings are short-circuited. The busy signalling circuits are completed by eleventh step contacts S, and the line relay is wired to the eleventh positions. The third winding of the line relay also serves to supply dialling tone in a first selector or ringing tone in a final selector. The group selector shown is of the kind which on release continues its rotary movement to an extreme position, as described in Specification 391,123. Relay H energizes as soon as the selector moves off-normal, and remains held during the hunting operation as long as busy outlets are encountered. When an idle line is found, H falls back and makes a fresh circuit for dialling relay C which controls switch-through. Relay H re-energizes and holds over the test wiper, while line relay A is disconnected since rotary off-normal springs NR are now operated. If no idle line is found, switch-through takes place in the eleventh position, and a busy signal is sent as described above. Upon release, the relapse of H, C completes a self interrupting circuit for the rotary magnet.
Patent GB-664307-A (GB)
Title: Improvements in apparatus used in the tailoring, dry-cleaning and allied trades for steam-treating garments and the like
IPC: D06F81/08
Filed: 1949-08-04
Abstract: 664,307. Steam spotting machines. WHITAKER, Ltd., R. G., and RICHARDSON, J. R. S. June 26, 1950 [Aug. 4, 1949], No. 20327/49. Class 138 (i) [Also in Group VIII] Steam for a steam gun 22 is passed through apparatus for partially drying the steam (see Group VIII) before,it is admitted to the gun. In the arrangement shown, a plate 18 which closes the top of a steam distributing chamber 3, functions as a hot plate, against which wet steam, which is admitted to a housing 19 under valve control from the chamber 3, is directed, before passing to the gun 22.
Patent GB-314896-A (GB)
Title: Improvements in or relating to packing air cooling systems for internal combustion engines
IPC: F16J15/40
Filed: 1929-07-03
Abstract: 314,896. Aktiebolaget Spontan. July 4, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Stuffing-boxes, substitutes for.-In a cooling- system for an internal-combustion engine, of the type in which compressed air or gas is circulated by a fan 11 through a casing 2, 3 surrounding the cylinders and through a cooler 6, the fan shaft 12 is packed by means of oil, the arrangement being such that leakage of air outwards causes an increased supply of oil. The shaft 12 passes through a bushing 13, having a chamber 27 to which oil is supplied by a passage 25, and chambers 29, 30, to which leakage of oil along the, shaft passes. The bushing 13 is mounted in a casing 10, partly filled with oil, and divided into upper and lower compartments 16, 17 by a partition 15. The pressure in the two compartments is equalized by a pipe 18. Make-up air, supplied by a compressor 8, passes by a pipe 9 to a nozzle, situated in the mouth of a, pipe 19, extending between the compartments 16, 17. The air carries with it oil from the compartment 17 to the compartment 16, and passes by an opening 22 to a chamber 21 and by an opening 23 to the cooling system. If air leaks to the chamber 29. it passes by a pipe 31 to a nozzle, situated in the mouth of a pipe 34 in a well 32, supplied with oil from a container 33 by a pump 38. The pipe 34 communicates by means of an opening 35 with the-suction pipe 36 of the compressor, and leakage, of air through the pipe 31 carries oil into the compressor, the oil being fed to the casing 10 with the, make-up air.
Patent GB-798400-A (GB)
Title: Improvements in or relating to photosensitive storage tube arrangements
IPC: H01J29/39
Filed: 1956-07-02
Abstract: 798,400. Cathode ray storage tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. July 2, 1956 [July 2, 1955], No. 20455/56. Class 39(1). A storage tube for storing electronic and optical information simultaneously and independently and for simultaneously reading off such information comprises a mosaic target made up of photosensitive, e.g. photoconductive or photo-emissive elements B, Fig. 2, and electron bombardment induced conductivity (BIC) elements A, which store charges from an optical writing system and a writing gun respectively, a separate reading gun being provided for restituting both sets of stored charges as electrical output signals. The signal contained in the writing electron beam may be radar information and the optical information is a map coordinates such as graph paper, letters or figures, the two sets of information being superposed at the receiver. In Fig. 2, the screen comprises an Al foil 1 having a thickness of 0À05 micron stretched over a copper wire grid 2 having 20 meshes/mm: and having on the other side thereof the mosaic elements A and B arranged checkerwise, 0À05 microns thick and formed as squares of side 50 microns separated by gaps of 10 microns width the foil being reinforced by thickenings 5 (0À5 micron thick) which prevent the writing beam from striking photosensitive elements B. BIC elements A are of alumina, silica or semiconductive material such as ZuS and may or may not be photosensitive. Elements B are photoconductive, e.g., Se or CdS or photosensitive, e.g., of caesium on oxidised silver. The writing electron and optical beams and the reading electron beam have a cross section covering several elements of the target and the charge images due to the optical and electronic writing can have different remanences. The optical and electron writing beams can be on opposite sides of the target the reading beam being slanted, Fig. 3 (not shown). In a modification, Fig. 4, the storage target is as in Specification 798,204, and comprises a grid with successive coatings within the meshes, of ZnS, electron BIC material such as a semiconductive photosensitive layer formed by impurities in a collodion film which is applied on top of the ZnS layer during the deposition process and finally destroyed by thermal treatment and finally a layer of Al 0À05 micron thick. The electronic writing beam I and optical writing beam O reflected by 45 degree mirror 13 are from the same side of the target, the 6000V. reading beam being on the opposite side of the target. The writing electron beam is at 3,000- 10,000 V. and the writing optical beam in a wavelength range of 3,500-4,500 AU. The reading and writing guns are on the same axis.
Patent GB-875940-A (GB)
Title: Polyphase static inverter
IPC: H02M1/08
Filed: 1959-06-15
Abstract: 875,940. Inverting. BORG-WARNER CORPORATION. June 15, 1959 [June 30, 1958], No. 20476/59. Class 38 (2). A three-phase inverter comprises six semiconductor rectifiers 14 ... 19 controlled by six logical " and " gate circuits 20 ... 25 and a timing pulse generator 11. Each " and " gate circuit has three inputs and one output, one input being derived from the pulse generator and the other two from the outputs of two of the rectifiers, a cyclical disposition of connections amongst the six devices being arranged. The frequency of the pulse generator is six times the desired output frequency. In operation one of each pair of rectifiers is on and the other off, and an incoming pulse to a rectifier which is off switches it on and switches its partner off. When such a rectifier is switched off a D.C. voltage output signal is obtained which is applied to the input of two of the " and " gates. Whilst a rectifier is on, i.e. conducting, current flows from a + ve line 51 through a primary winding 49 of a three-phase transformer 13, the rectifier and back to earth. A typical " and " gate 22 comprises two PNP transistors 31, 32 which are cut off by signals from the rectifiers 15, 18 applied to their bases. When both are off a timing pulse applied to the base of an NPN transistor 30 cuts this off and causes a voltage to be applied through capacitor 37 to the gate electrode 44g of the controlled rectifier 6. This conducts energizing the transformer winding 49, the voltage drop at its anode being transmitted through capacitor 48 to the anode of rectifier 17 causing this transistor to cut off whereupon its anode voltage rises providing signal voltages for " and " gates 21 and 24 Only when both transistors 31, 32 are cut off is the voltage to the rectifier 16 sufficient to effect switching. A coil 50 makes the output waveform more sinusoidal. The rectifiers 14-19 are four layer devices as shown in Fig. 7 and on the gate electrode being energized these conduct under avalanche conditions until the anode voltage is reduced.
Patent GB-383656-A (GB)
Title: Improvements in or relating to cupboards
IPC: A47B71/00
Filed: 1931-07-17
Abstract: 383,656. Cupboards. BILTON (Inc.), Ltd., P., 113, Park Street, London. -(Cox, F. E. ; 2608, San Pablo Avenue, Berkeley, California, U.S.A.) July 17, 1931, No. 20498. [Class 52 (i).] A cupboard, particularly a larder, is fitted near two ventilating ducts 25, 26, which pass through an outer wall 27 and lead to and from the lower and upper parts of the cupboard. In a modification, the duct 25 is beneath the bottom of the cupboard, and is connected by a pipe bend to an aperture in it.
Patent GB-853012-A (GB)
Title: 1:6-dimethyl aromatic steroids and the preparation thereof
Inventor: BURN DEREK
IPC: C07J1/00
Filed: 1958-06-26
Abstract: The invention comprises steroids of the formulae: <FORM:0853012/IV(b)/1> (wherein X is = O, a H b OH or a Hb  (Oacyl) and R is hydrogen or acyl containing up to 4 carbon atoms); the preparation of the tetraens (II) by reacting a steroid of the formula :  <FORM:0853012/IV(b)/2> with toluene-p-sulphonic acid, sulphuric acid, hydrobromic acid or zinc chloride in an acyl chloride of at most 4 carbon atoms or an acid anhydride of at most 8 carbon atoms, followed by hydrolysis as required; and the preparation of the triens (III) by catalytic hydrogenation of the tetraens e.g. with palladium on charcoal or calcium or barium carbonate in a solvent such as a lower fatty acid ester, dioxan, tetrahydrofuran or, preferably, an aliphatic alcohol of at most 4 carbon atoms.  Products containing a 17-keto group may be converted into the corresponding 17b -hydroxy compounds by treatment with sodium borohydride in methanol.  The preparation of the 3:17-diacetoxy- and the 3-acetoxy-17-one-compounds and, their hydrolysis to the corresponding free hydroxy compounds of both the tetraens and the triens is described in examples, the hydrolysis being performed either before or after the reduction.  17b -Acetoxy-6-methylandrosta-1 : 4 : 6-trien-3-one is prepared by heating 17b -acetoxy-6-methylandrosta-4 : 6-dien-3-one with 2 : 3-dichloro-5 : 6-dicyano-p-benzoqiunone in dioxan.  Specifications 843,355 and 852,847 are referred to.
Patent GB-1503204-A (GB)
Title: Process for the production of aminonitrodihydroxyanthraquinones
IPC: C07C225/36
Filed: 1975-05-15
Abstract: 1503204 Preparation of aminonitrodihydroxyanthraquinones BASF AG 15 May 1975 [12 June 1974] 20557/75 Heading C4P Compounds of formula where one X is OH and the other X is NO 2  are prepared by reducing a dinitrodihydroxyanthraquinone with substantially the stoichiometric amount of hydrazine in a phenol as solvent at a temperature from 40‹ C. to the boiling point of the reaction mixture. The amount of phenol used is preferably 2À5 to 20 times the weight of the dinitrodihydroxyanthraquinone.
Patent GB-1495565-A (GB)
Title: Splined elements for spline drives
IPC: F16D3/06
Filed: 1975-03-25
Abstract: 1495565 Shaft couplings LUCAS INDUSTRIES Ltd 25 March 1975 [9 May 1974] 20615/74 Heading F2U An externally splined element 10 has each spline in at least four axially-aligned and axiallyspaced parts, the parts being separated by circumferential grooves 13 or alternatively by a helical groove. The division of the splines reduces wear when they are surrounded by a liquid or grease, reducing cavitation caused by alternate compression and release of the fluid.
Patent GB-206460-A (GB)
Abstract: 206,460. Haddan, A. J. H., (National Cash Register Co.). Aug. 1, 1922. Cash registers with operating-means; printing totals.-The machine-release keys and the total lever are normally locked against movement but are freed by the complete insertion and retention of a removable cashier's key. Type carriers are also differentially set by the inserted key so as to print the key number or characteristic. The invention is described as applied to the release keys of Specification 191,346, the arms supporting the detent plates of which are adapted, when rocked by the depression of a key, to pass through openings in a fixed frame. The arms are, however, normally obstructed by a slidable block 136 unless this has been pushed to the left (Fig. 4<a>) by the inserted cashier's key 133, in which case a slot 146 and a gap between the lug 145 and a stationary projection 148 register with the fixed openings above-mentioned and permit the passage of the arms. The projection 148 is part of a collar 147 fixed to the shaft 118 which is rocked by the adjustment of the total-lever to any of its totaltaking positions. Unless the key has been inserted and the block 136 displaced to make its lug 145 clear the projection 148, the total-lever cannot be moved from its normal or adding position. The cashier's key 133 is formed with a bevelled end 156 which, upon insertion of the key, engages one arm 165 of a spring-controlled bifurcated lever 159 pivoted to one end of the block 136. The continued advance of the key therefore causes the lever to rock counterclockwise and its lower arm to engage a notch 158 in the key so that the key and block are then locked together. As the key and block are moved farther in, the end 167 of the lever rides under a fixed rail 168 and consequently the key cannot be withdrawn without first restoring the block to normal position. The type wheels for printing the cashier's number are set from a pair of toothed racks 337 engaged by sectors 342 pivoted at 340 and normally locked by spring- influenced pawls 348. When the key is inserted,. differentially-positioned pins 344, 345 on the key shank first depress the tails of the pawls to unlock the sectors and then by engaging slots 1349 rotate the sectors differentially to set the type wheels.
Patent GB-1211487-A (GB)
Title: Electric lampholder
Inventor: HEATH CLARENCE WILLANS
IPC: H01R33/00
Filed: 1967-06-01
Abstract: 1,211,487. Lamp holders. CARR FASTENER CO. Ltd. 17 April, 1968 [1 June, 1967], No. 20742/69. Divided out of 1,209,463. Heading H2E. A lamp holder comprises a metal body 1 provided with bayonet slots 2, mounted on an insulating base formed by integral portions 3, 4, and is provided with means for being mounted in an apertured support (not shown). Conductive contacts are assembled with the base and these include resilient portions extending into the body 1, and terminals 8b extending out of the base. The mounting means for the lamp holder comprises a metal plate 14 attached to the insulating base and having two resilient arms 15, each formed with shoulders 18. The resilient arms may be formed with different transverse widths to engage in slots of corresponding widths in the mounting aperture to ensure correct polarity. As shown, the arms 15 are provided with further shoulders 20 adjacent 18, the apertured support engaging therebetween. The metal plate 14 is secured to the lamp holder by means of lugs (6a, not shown), which extend from the body 1 of the lamp holder. Specification 1,209,463 is referred to.
Patent GB-658423-A (GB)
Title: Improvements in or relating to coating compositions
IPC: C04B20/10
Filed: 1948-08-05
Abstract: A coating composition comprises a mixture of zinc dust and alkali silicate solution in which the zinc dust is coated with a film which is relatively stable under the alkaline conditions encountered in the alkali silicate solution.  The film may comprise paraffin wax, castor oil, carnauba wax, beeswax, alkyd resin, urea-formaldehyde resin, sodium sulphide, ammonium sulphide, ammonium carbonate, potassium sulphide, an alkali iodate, or an alkali phosphate, e.g. disodium hydrogen phosphate. The preferred ratio of alkali oxide to silica in the silicate in moles. is within the range 1/2.3 to 1/3.0.  The solution may be prepared by mixing zinc dust with the solution of the film-forming material to form a stiff paste, allowing the solvent to evaporate, so coating the zinc, and then mixing this with the silicate. Specified solvents are acetone, butanol and benzol.  Red lead, in amounts not greater than 3 grammes per 100 grammes of zinc dust may also be present in the composition.