baber/WOPTO huggingface dataset:
Patent GB-189495-A (GB)
Title: Method of making sheet glass
IPC: C03B15/04
Filed: 1921-08-03
Abstract: 189,495. Marks, E. C. R., (Libbey-Owens Sheet Glass Co.). Aug. 3, 1921. Drawing.-A method of forming sheet glass consists in drawing a mass of molten glass upwardly from a supply of the metal, passing the mass, while in a highly heated plastic condition, laterally over a bending member, and then stretching it to size to form a sheet. The glass is drawn initially from the supply 2 by means of a bait, and while the glass is still in a mass formation, as at 3, it is drawn laterally over a bending member 4. This member may consist of a roll, as shown, or a stationary member. The sheet a is drawn horizontally from the member 4 by drawing-means 7, 8 and is reduced in thickness or stretched to size. Other rolls 9 may be used to support the sheet between the member 4 and the drawing means.
Patent GB-1503774-A (GB)
Title: Production of enolester epoxides
IPC: C07D303/16
Filed: 1975-05-15
Abstract: 1503774 Enolester epoxides SNAMPROGETTI SpA 15 May 1975 [17 May 1974] 20729/75 Heading C2C A process for the preparation of an enolester epoxide having the formula  wherein R, R 1  and R 2  are hydrogen or hydrocarbyl radicals and R 3  is a hydrocarbyl radical which comprises reacting an alkali metal or alkaline earth metal salt of an organic acid R 3 COOH with a compound of the formula wherein X is halogen. The reaction is suitably effected in a solvent at a temperature of from - 30‹ to + 70‹ C. under superatmospheric pressure.
Patent GB-744695-A (GB)
Title: Improvements in static structures for jet propulsion engines
IPC: F02K3/02
Filed: 1953-07-29
Abstract: 744,695. Gas turbine jet propulsion plant. MULLER, M. A. July 29, 1953. No. 21017/53. Class 110(3) A gas turbine jet propulsion engine of the by-pass type comprises an annular intake 3 at the front of the engine in which is disposed a pre-compressor 4, 5, the air from this compressor being divided into two streams 6, 12 by an annular wall 1. The inner air stream 6 passes to a main compressor 7 and then to combustion equipment 9 and turbine 10, the exhaust gases then discharging through the propulsion nozzle 11. The outer air stream flows through the annular passage 13 and then into guide tubes 14 which are disposed along the outer casing 15 of the main compressor 7 and are circumferentially spaced. This by-pass stream flowing through the tubes 14 passes directly to the propulsion nozzle 11. The driving gear 20b for the pre-compressor 4; 5 is contained within a wall 20a forming the inner wall of the: inner annular passage for the air-flow 6. The spaces between the guide tubes are utilized for accommodating combustion chambers 9 and engine auxiliaries 23 which are driven by means of gearing. The bearing 19 adjacent the turbine wheel 10 is supported by means of adjustable rods 18 from an annular ring 17.
Patent GB-948797-A (GB)
Title: Improvements in or relating to stays for doors, windows and the like
Inventor: BROCKHAUS ERNEST
IPC: E05C17/20
Filed: 1961-06-10
Abstract: 948,797. Stays. ED. SCHARWACHTER. June 10, 1961, No. 21059/61. Heading E2F. A stay bar 8 comprises at least two parts 9, 10 connected together and each formed with an integral projection 13, 14, the projections together constituting a relatively rigid detent which co-operates with a spring-loaded retainer through which the stay bar slides. The retainer preferably comprises two opposed braking bodies 35 of brass or a polyamide backed by rubber spring-blocks 38<SP>1</SP> which engage in prismatic recesses 39 in the bodies 35. The space 27 between the projections may be filled with plastic material, and the outer surfaces of the projections may also be clad with plastic. More than one detent may be formed in the bar, and the width of the bar may increase in the region of the or each detent. The bar may be rigidly secured to a door or the like, or may be pivotally mounted by means of a plastic bush 23 which also serves to hold the parts of the bar together.
Patent GB-865169-A (GB)
Title: Improvements in or relating to rotary fans, pumps and the like
Inventor: MACFARLANE DANIEL
IPC: F04D29/36
Filed: 1959-06-19
Abstract: 865,169. Centrifugal and axial flow fans and pumps. DAVIDSON & CO. Ltd. June 19, 1959, No. 21140/59. Class 110 (1). In a wheel for a rotary fan, pump or the like each blade has its trailing edge divided so as to provide a fixed sub-portion 25 and a movable sub-portion 29, both sub-portions sweeping substantially the same path during rotation of the wheel. The movable sub-portion of the blade which is mounted in the blade surface facing the direction of rotation, is mounted on a hinge-pin 30 and a slot 33, arcuate about the pin 30 is provided in the hub 22. The movable sub-portion 29 of the blade is set to the required angle and locked by means of a bolt 32 in the slot 33. The hinge-pin 30 may run the full length of the blade, Fig. 1, or the movable subportion may be mounted on a spigot pivot-pin 34, Fig. 6. The movable sub-portion may also be mounted so as to face away from the direction of rotation of the wheel, Fig. 12, and it may only occupy part of the span of the blade. The invention is applicable to fan wheels having solid or hollow fabricated blades and may be applied to shrouded centrifugal fan wheels, Fig. 12, as well as to axial flow fans, Fig. 1. Specification 702,312 is referred to.
Patent GB-614488-A (GB)
Title: Improvements in or relating to apparatus for applying liquid surface dressings to roads or tracks
IPC: E01C19/17
Filed: 1946-07-15
Abstract: 614,488. Road surface spraying. JOHNSTON BROS. (CONTRACTORS), Ltd., and HOBBS, J. E. July 15, 1946, No. 21175. [Class 107] An apparatus for applying liquid surface dressings to roads and tracks comprises a cauldron 11 mounted on a chassis 10 the liquid being pumped from the cauldron through a control valve 13 and conduit 16 to a spray pipe 17. The pump 15 is driven from a road wheel 23 through a gear box 21. Any excess liquid is returned to the cauldron by way of the valve-controlled conduit 20. Spaced along the spray pipe 17 are a number of valve chambers 26 each having a valve body 32 and a tapered plug 36, passages 47 and 39 extending through them respectively. Operation of the linkage 44, 48 will align these passages so that the liquid may escape from the pipe 17 to the road. Mounted behind the spray pipes are a series of brooms 24 which work the liquid into the road. In a modification, the brushes may be mounted on a 'separate chassis coupled behind the first chassis. The chassis may be either towed or one may be self-propelled. Specification 347,759 is referred to.
Patent GB-1473582-A (GB)
Title: Electrical heating system
IPC: F04D25/06
Filed: 1974-05-14
Abstract: 1473582 Induction heating SACHS SYSTEMTECHNIK GmbH 14 May 1974 [25 May 1973 28 March 1974] 21185/74 Heading H5H [Also in Division H2]  An induction heating system for warming plates or containers comprises an induction heating coil 5 mounted beneath or within a rigid, non-magnetic electrically insulating panel 1 and a co-operating secondary means mounted on or associated with the plates or containers, the secondary means being in the form of a magnetic or electrically conductive layer 8. As shown in Fig. 1, a table-top panel 1 has mounted below its surface, a primary coil and core arrangement 5, 4 to receive current from a device 6 in the frequency range 5-20 kHz. The coil 5 is preferably of band-like conductor spirally wound. A food-dish 3 having a ferromagnetic or electrically conductive base covering 8 as secondary means is placed over the primary coil and this base is heated by the inductive energy transfer. The covering 8 may be of perforated foil mounted with epoxy resin adhesive, and possibly having a protective external layer of this adhesive or ceramic glaze. Alternatively an electrically and thermal insulating pad having a first face covered in a ribbed foil may be used and a vessel to be heated placed on the foil. A suitable driving circuit is shown in Fig. 5 and comprises push-pull transistors 24, 24<SP>1</SP> supplying a centre-tapped coil 20 which with capacitor 38 forms a weakly damped resonance circuit. Transformer 26 provides feed-back to render the generator self-oscillating. The transistors are controlled by resistor 27 which is in parallel with capacitor 21. Under no load the transistors oscillate with a small power consumption, and when a load, e.g. of foil 8 is coupled with the field, the resonant properties of the oscillator are changed with an increase in oscillatory frequency, and the circuit assumes the characteristics of a highly damped leakage reactance transformer. In a modification, Fig. 6 (not shown), resistor 27 is replaced with a further oscillator circuit of a coil and a capacitor together with a further transistor shunted by a resistor. This oscillator is tuned to the frequency of circuit 20, 38. Under no load, very little power is dissipated by the transistors 24, 24<SP>1</SP> owing to the high impedance of the second oscillator circuit. When a load is introduced this oscillator circuit goes off resonance and causes its associated transistor to conduct further to apply a greater base current to transistors 24, 24<SP>1</SP>.
Patent GB-1381145-A (GB)
Title: Method of perfluorinating perchloro compounds
IPC: C07C45/63
Filed: 1972-05-05
Abstract: 1381145 Perfluorination RHONE-PROGIL SA 5 May 1972 [6 May 1971] 21194/72 Heading C2 A method of perfluoririat a perchloro compound containing a perchloromethyl or perchloroethyl group, in the vapour phase, by reaction with anhydrous hydrofluoric acid, is carried out continuously in three successive zones maintained at temperatures of 200 to 250 C., 250 to 275 C. and 275 to 350 C., respectively, with the proviso that the temperature difference between one zone and the next is - at least 10 C., each zone containing a fixed bed fluorination catalyst, the absolute pressure in each zone being from 1 to 4 bars, the replacement of the first two atoms of chlorine per molecule of the perchloro compound being carried out in the first zone, the fluorination being continued in the second zone to an extent such that the ratio of the number of fluorine atoms to the number of chlorine atoms in the intermediate perchloro fluoro compound(s) issuing from the second zone is at least 1À5, and the fluorination being completed in the third zone. The residence time in each zone is preferably from 2 to 10 seconds, and the HF is preferably used in excess. Examples describe the perfluorination of hexachloroacetone, trichloroacetyl chloride, octachlorobutanone and trichloroacetaldehyde.
Patent GB-775406-A (GB)
Title: Colouring of textiles
IPC: D06P3/46
Filed: 1955-07-22
Abstract: Textile materials of cellulose acetate of acetyl value at least 59 per cent, calculated as acetic acid, are coloured by depositing a solid colouring material on the surface of the textile, either locally or otherwise, and then heating to a sufficient temperature and for a sufficient time to effect penetration of the colouring material into the cellulose ester.  The colouring material may be organic or inorganic (including white pigments) examples of which are vat, acid, premetallized and disperse acetate dyestuffs, azoic and phthalocyanine pigments, carbon black, barytes and titanium dioxide, which latter pigment also produces a delustring effect upon the textile.  The colouring material is preferably applied as an aqueous dispersion as by padding or printing, the dispersion also containing dispersing agents such as a soap, a sulphonated alkyl benzene, a sulphated long chain fatty alcohol, a polyalkylene oxide derivative of a fatty acid or alcohol, a lignosulphonate or a sulphonated formaldehyde-naphthalene condensation product.  When applied as by printing, the dispersion may be thickened with glue, vegetable gums, cellulose derivatives, polyvinyl alcohol or alginates.  After drying, heating is preferably effected, at a temperature of at least 190 DEG C., by passing the material over a heated drum, or by hot air, molten metal, infra-red radiation or high frequency heating.  The heat treatment also raises the safe ironing temperature of the textile. The textile material may also have been preheated, and preferably it is subsequently scoured to remove loosely adhering colouring matter. Water-proofing or finishing agents such as polysiloxanes, waxy polyethylene, waxy sulphonated fatty materials, waxy cationic long chain amine compounds and resinous condensation products, may be applied to the textile before or after the heating operation and, when compatible, they may be admixed with the colouring material. Examples of padding and printing are given.
Patent GB-1325092-A (GB)
Title: Double functional recording material
IPC: G03G5/05
Filed: 1971-04-19
Abstract: 1325092 Recording sheet JUJO PAPER CO Ltd 19 April 1971 [6 Feb 1970] 21279/71 Heading D2B A recording sheet comprises an electrically conductive base sheet having on one surface thereof a layer of an electrically insulating polymeric material which is capable of causing a visible coloured reaction with an electrondonating colour-forming reactant. The polymeric material may be a phenolic resin, maleic acid-rosin resin, carboxy-polyethylene, or an ethylene-maleic anhydride copolymer. A highly insulating dielectric additive, e.g. silica, alumina, clay, may be included in the polymeric layer. A surface of the recording sheet may be provided with a layer comprising microcapsules containing the colour-forming reactant.
Patent GB-407598-A (GB)
Title: Improvements in and relating to holders for arc welding electrodes
IPC: B23K9/28
Filed: 1933-07-28
Abstract: 407,598. Holders for arc - welding electrodes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych London. -(Assignees of Inman, F. H. ; 2219, Story Avenue, Schenectady, New York, U.S.A.) July 28, 1933, No. 21281. Convention date, July 29, 1932. [Class 39 (iii).] The holder comprises an electrode clamp 1 mounted in a supporting member 3, and a single detachable means for mechanically securing the clamp to the supporting member and to the current conductor 4. The detachable means comprises the set screws 10. The clamp 1 has a slotted shank 8 and carries a pin 11 to facilitate good electrical connection with the conductor. The fibre handle 2 rests on the heads of screws 12 and is held by a screw 13. The handle and supporting member are perforated. A guard 14 is mounted on the supporting member. The electrode is pressed against the jaw 5 by a cam 6 operated by a lever 7.
Patent GB-914491-A (GB)
Title: Electrical plugs and sockets
Inventor: GORDON-VENN EDWARD
IPC: H01R13/639
Filed: 1959-06-22
Abstract: 914,491. Two-part couplings. ULTRA ELECTRONICS Ltd. May 4, 1960 [June 22, 1959], No. 21284/59. Class 38 (1). In a two-part electric coupling, relative rotation between a multi-jack socket 12 and a member 17 which screws a plug 16 on to the socket 12 is prevented after assembly by a spring-urged cap 21 non-rotatably mounted on the socket and having recesses 25 engaging ribs 18 on member 17. The cap is slidably mounted by means of prongs 20 on a member 19 and can be depressed when the plug is to be removed.
Patent GB-764611-A (GB)
Title: Garment folding machine
IPC: D06F89/02
Filed: 1954-07-21
Abstract: 764,611. Bundling-machines. DEHN, S. G. (Automatic Folding Machine Co.) July 21, 1954, No. 21313/54. Class 94(1). A machine for folding a garment, e.g. a shirt, about a cardboard former and applying a band thereto, comprises a table 31, Figs. 1 and 2, formed with a central well 33 over which the shirt 32 is placed by the operator, as shown in Fig. 10, with its collar embracing an expander mechanism 37. A hinged plate 78, carrying a cardboard former 81 which has been supplied automatically from a magazine 82, is then swung down manually into engagement with the body of the shirt and closes a switch 80 to enable the machine to be started. Rods 38 and 40 are then operated through linkage and move in succession across the well from opposite sides to fold over the side portions and sleeves 32c and 32d of the shirt, after which a member 101, carried by a rod 41 slidable in an inclined guide, is projected through a slot in the base of the well to fold over the tail portion 32a on to bars 118 which are projected through apertures in the side walls of the well. The end of the tail portion of the shirt which overhangs the bars 118 is then tucked under by fingers 120 which swing inwardly as indicated by the arrows K, Fig. 1. A strip of tape is then fed from a roll 130, Fig. 18, through a guide 135 so that it partially embraces the folded shirt, and after the required length has been cut off by a knife 132, an arm 144 is swung upwardly to carry the severed end portion over the top of the shirt. The ends of the tape are then joined by the operator and the folded and banded shirt removed from the plate 78 after the latter has been swung upwardly.
Patent GB-149285-A (GB)
Title: Improvements in and relating to stop motions and clutch mechanism for calculating apparatus, machines for automatically compiling, recording and reckoning statistics, and like machines
Filed: 1919-05-01
Abstract: 149,285. Lasker, W. W. May 1, 1918, [Convention date]. Operating by motor; statistical machines.-A clutch and control device for use with motor - driven calculating-machines but specially adapted for use with machines for compiling statistics from perforated record cards as described in Specification 126,308, comprises a member with radial arms mounted on the driving-shaft, a slidable member mounted on the driven shaft, means for coupling and uncoupling the said members, and means associated therewith for stopping the motor when the operation of the machine is arrested. The electric motor drives a shaft 392, Fig. 1, and through worm gearing rotates a shaft 394 provided with a clutch member 400 having radial arms adapted to be engaged by a clutch pin 409 slidable in a bracket 404 fixed to a shaft 402 on which is mounted a wheel 445 gearing with a wheel 446 on the main operating cam-shaft 59 of the machine. The clutch pin 409 is provided with a pinion 420 which is adapted to engage a rack lever 418 to hold the pin out of engagement with the member 400. The rack lever is rocked downwardly to allow the clutch pin to slide by the action of its spring 414 into the operative position by means of a push-rod 436, Fig. 2, which is attached to a lever 426 having a forked part engaging a pin on the rack lever. A latch 432 attached by a link to the lever 426 normally holds the rack lever in its raised position, and a latch 440 engaging the tail end of the rack lever holds the said lever in its disengaged position. Flexible connexions 448, 479, in operative relation with the receptacle for the record cards which have been analyzed, and with the magazine which contains the cards respectively as described in the above-mentioned Specification, are provided, and so arranged that when the receptacle is full or the magazine empty, the latch 440 is released to allow the rack lever 418 to rise to engage the pinion 420 and thereby withdraw the clutch pin 409. The motor is stopped by means of the flexible connexion 485 which communicates with an extension 491 on the rack lever 418 and the motorcircuit-switch latch 492.
Patent GB-916464-A (GB)
Title: Improvements in or relating to radio-fequency dielectric heating equipment
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/50
Filed: 1959-03-18
Abstract: 916,464. Automatic tuning control systems. RADYNE Ltd. June 20, 1960 [March 18, 1959], No. 21564/60. Divided out of 9408/59. Drawings to Specification. Class 40 (5). In radio-frequency dielectric heating apparatus signals from a tuned circuit of a crystal controlled oscillator and a resonant cavity tank circuit respectively of a push-pull power amplifier are phase compared to derive a D.C. control voltage operating, through a reversible D.C. motor, a pivoted tuning flap in the cavity resonator of the power amplifier to correct any mistuning. The tuned circuit may be the tuned anode circuit of a reference valve energized from the oscillator.
Patent GB-570480-A (GB)
Title: Improvements in spray damping machines for damping fabrics
IPC: D06B1/00
Filed: 1943-12-24
Abstract: In a fabric-damping machine wherein a spray A is applied to each face of the fabric C, the fabric is moved vertically upwards through a trough-like container B through an opening in the bottom of the container, preferably covered <PICT:0570480/IV/1> by two hinged flaps d provided with doctors d2 and made of rubber &c.  Any water collecting above the sprays which falls into the container is thus prevented from falling on to a horizontal arm of the fabric and is drained away at b.
Patent GB-373848-A (GB)
Title: Menstruation dressing
IPC: A61F13/20
Filed: 1931-07-29
Abstract: 373,848. Catamenial appliances. NERSNAES, K., 62, Gjetemyrsveien, Oslo, Norway. July 29, 1931, No. 21632. Convention date, Aug. 26, 1930. [Class 81 (ii).] A catamenial appliance worn internally comprises a plug of highlyabsorbent material such as cellulose paper 3 surrounded by less absorbent material such as cottonwool 2 and carried in a gauze bag 1 the open end 1a of which is closed by twisting and serves to facilitate removal of the appliance. The bag 1 is formed by doubling a trapezoidal piece of gauze longitudinally, stitching the free side and top edges together and turning the bag so formed inside out.
Patent GB-1103623-A (GB)
Title: A wireless personal call system
IPC: H04B5/04
Filed: 1965-05-21
Abstract: 1,103,623. Aerials; inductive signalling; radio signalling. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 21 May, 1965 [23 May, 1964], No. 21646/65. Headings H4A, H4L and H4U. A wireless personal call system using two frequencies for transmission comprises an induction loop for low frequencies and at least one resonant aerial for high frequencies, the latter being fed through at least part of the cable which constitutes the induction loop. As described, a cable 3 comprising two lines 1, 2 is formed into a loop around an area to be served and its ends are connected to the primary windings of two transformers 7, a low-frequency signal for transmission being fed to the two centre taps 12 thereof. Folded high-frequency dipoles 6 are connected across the lines 1, 2 via decoupling resistors 5 and transformers 4, and signals received by them are coupled through the transformers 12 to two receivers 8, 9. A diversity device provides for connection of the receiver having the stronger signal to an amplifier 10 which is connected to a loud-speaker 11. The dipoles may point in various directions so as to cover the whole area to be served, and they may be arranged for receiving signals having different polarizations. The low-frequency signal for transmission is supplied to the induction loop by a transmitter 14 having a microphone 18 and an output transformer 13. Connection to the centre points 12 of the transformers 7 is made via wave-traps 15, 16 and a loop tuning variable capacitor 17 is provided. A mobile station for operation within the service area comprises a microphone 22 connected to a highfrequency transmitter 23 and a high-frequency aerial 24, and also an induction loop aerial 19 connected to a low-frequency receiver 20 and a loud-speaker 21. In an alternative arrangement, an area containing a building is served by a lowfrequency transmitter by means of an induction loop around it, and an area outside is served by a high-frequency transmitter by means of resonant aerials fed through the cable which forms the loop.