baber/WOPTO huggingface dataset:
Patent GB-1338315-A (GB)
Title: Sampling switch circuit
IPC: H03D13/00
Filed: 1971-04-23
Abstract: 1338315 Transistor switching circuits, automatic phase control RCA CORPORATION 23 April 1971 [30 April 1970 29 June 1970] 11005/71 Headings H3T and H3A A transistor switching circuit comprises, two transistors 60, 70 with their emitter-collector paths in series, an output 95 connected to the emitter of the first, an input A connected to the base of the first, and a feedback path 65 from the collector of the first to the second. Transistors 60, 70 are both normally cut-off by normally conducting transistors 80, 90 and application of a sampling pulse V K  to the bases of 80, 90 turns them off to allow 60, 70 to become conductive, passing input signal V i  to storage capacitor 97. As an increase in V i  causes transistor 60 to become more conductive, the negative feedback through avalanche diode 65 make transistor 70 less conductive, and vice versa. In a modification, Fig. 2 (not shown), the collector of transistor 90 is connected to the other side of diode 65, and (not shown) the transistor 80 may be omitted. In another modification, Fig. 3 (not shown) transistor 90 is omitted and the collector of transistor is connected to the base of transistor 60 via one diode (85) and to its collector by another (87) to equalize the switching off time of transistors 60, 70. These two diodes may be strapped transistors. The gate is used as a phase comparator in a television synchronizing system. Received line synchronizing are separated by separator 26 and are amplified and shaped to provide the sampling pulses V k . The input V i  is a sawtooth derived from the line scan circuit 104 via a shaping network 120 and transistor 130. The amplitude of the sample fed to capacitor 97 thus depends on the phasing of the sampling signal relative to the sawtooth, and provides a control signal for adjusting the oscillator 104.
Patent GB-204011-A (GB)
Title: Improvements in jewellery
IPC: A44C15/00
Filed: 1923-04-23
Abstract: 204,011. Loeb, S. Sept. 18, 1922, [Convention date]. Cases, watch.-A watch case has a convex under side 5, and is adapted for wear upon the finger, wrist, or ankle, by means of a strap &c. threaded through loops.
Patent GB-578172-A (GB)
Title: Improvements in or relating to appliances for the upright filing of index cards
IPC: B42F21/00
Filed: 1944-06-09
Abstract: 578,172. Index cards. PARFITT, A. W. (Lampel, B.). June 9, 1944, No. 11059. [Classes 16 and 146 (i)] Index cards 3 are each filed in an upright position by engagement in a holder 1 comprising a strip folded lengthwise .to form a channel to receive the upper end of the card, extensions being provided at each, end of the holder adapted to rest on the guide rods of a filing- device. Each extension may have one or more notches 8 therein to slide on the rods and to allow lateral displacement pf the card. The holder is bent at 6, the front limb 4 being longer than the rear limb 5, and tongues 10 struck out of the front limb engage in slots 9 in the card. If the holder is not transparent, a window, is formed in the limb 4 so that indicia on the cards can be seen. Index tabs.-The holder 1 is slotted at 11 for the passage of index tabs 12 which may be cross-shaped or, as shown, T-shaped and ribbed at 14 to prevent displacement. Instead of tabs, the top of the card 3 may be notched or coloured in parts, or U-shaped staples may be clipped thereon to lie within the holder.
Patent GB-993157-A (GB)
Title: Improvements in pulverised fuel fired, slag tap furnaces
IPC: F23C1/12
Filed: 1962-03-22
Abstract: 993,157. Pulverulent and fluent fuel fired furnaces. L. & C. STEINMULLER G.m.b.H. March 22, 1962 [March 25, 1961], No. 11071/62. Heading F4B. A pulverulent fuel fired slag tap furnace has a main combustion chamber 1 fired by a pulverulent fuel burner 11 in the roof, and an auxiliary combustion chamber 3 extending above the top of the main chamber 1 and separated from it by a water tube wall 7 fired by a top burner 15 for gas or oil. The tubes of the wall 7 are continued to form a slag screen 6 between the outlet of the main combustion chamber 1 and a gas pass 5, which is separated from the auxiliary chamber 3 by a second tube wall 8. Further burners 12, which are used to start the furnace, are located in a chamber 2 forming a lateral extension of the lower part of the main combustion chamber 1. Since the combustion products from either of the burners 11 and 13 do not pass through the combustion chamber in which the other burner is located, there is no difficulty in lighting the auxiliary burners 13, and the burners are not damaged by radiation when they are not in use.
Patent GB-183223-A (GB)
Title: A new or improved fabric or matting
IPC: D03D1/00
Filed: 1921-04-16
Abstract: 183,223. Nash, S. G. April 16, 1921. Pile fabrics; straw and like fabrics; asbestos fabrics; materials, special, fabrics containing.- A fabric or matting serving as an imitation grass lawn for stage or decorative purposes purposes is made by drawing strips of raffia, which may be dyed green &c., into a canvas or other backing so as to form loops, and then cutting the loops so as to leave the raffia ends standing upright. Or tufts of raffia are inter-threaded into the backing. In modifications, the strips or tufts are introduced during the weaving of the backing. Instead of dyeing the raffia strips, the finished article may be dyed. The backing may be composed of cotton, flax, hemp, jute, or asbestos. The backing and the raffia may be made waterproof or fire-resisting or both by means of a solution of tin or other salts. The fabric may be made into a stage or floor covering or into table or floor mats &c.
Patent GB-382878-A (GB)
Title: Process and apparatus for the production of metal tubes with inwardly thickened ends
IPC: B21B21/00
Filed: 1932-04-18
Abstract: 382,878. Rolling tubes. MANNESMANNRÍHRENWERKE, 1B, Berger Ufer, D³sseldorf, Germany. April 18, 1932, No. 11105. Convention date, April 20, 1931. [Class 83 (iv).] Mandrels.-In rolling a tube with an internally thickened portion at one end, the rear end of the hollow blank bears against a detachable stop while the thickened portion is rolled on a reduced portion of the mandrel, the stop being removed while the transitional and thinner portions of the tube are rolled. A blank b bears against a stop c comprising a number of segments while the thicker portion is rolled by pilger rolls e on the reduced end a<1> of the mandrel, the stop being removed and the end of the blank allowed to move into contact with the holder d while the transitional portion j and the thinner portion of the tube are rolled. The stop c may be replaced by a collar which may be secured at an intermediate portion of the mandrel while the thicker portion is being rolled, and then released to move back against the holder d during the subsequent steps of the operation.
Patent GB-705849-A (GB)
Title: Improvements in or relating to vibrator units for producing an alternating current from a direct current
IPC: H01H51/34
Filed: 1951-05-11
Abstract: 705,849. Electromagnetic interrupters. GENERAL ELECTRIC CO., Ltd., and RUNCIMAN, R. D. May 12, 1952 [May 11, 1951], No. 11195/51. Class 38(5) A vibrator unit 1 for producing a H.T. voltage from a low tension D.C. source is mounted on a chassis in a box 3, the top rectangular plate 2 of the chassis carrying at its corners rubber grommets 6 adapted to engage grooves 7 in the sides of the box 3. The grooves are formed by'bending the sides of the box and the chassis, which has side plate 5 as well as the top plate 2, is adapted to be slid into position in the box, after which the front wall of the box (not shown) is secured. to the box by screws entering holes 9.
Patent GB-574546-A (GB)
Title: Improvements in and relating to electric filters
IPC: H03H19/00
Filed: 1941-09-04
Abstract: 574,546. Frequency filters. RADIO TRANSMISSION EQUIPMENT, Ltd., and BAILEY, C. E. G. Sept. 4, 1941, No. 11334. [Class 40 (iii)] [Also in Group XXXV] Currents of a particular frequency are separated from currents of different frequencies by commutating them at the desired frequency, as at a, Fig. 3, passing the resultant current through a low-pass filter to smooth out the half-waves as at b, and commutating the output from the filter to reproduce the selected frequency as at c. The two commutators are on the same shaft, which is rotated at the desired frequency, and may be two-pole ordinary commutators 2, 3, the brushes 5, 6 being connected to the input and output circuits respectively. The commutator segments are connected to the filter 4, which may rotate with the shaft or be connected to the commutator by slip rings. The commutator and slip rings may be replaced by inductive or capacitative equivalents tb avoid brush contacts ; e.g. each commutator may be replaced by a two-pole stator winding surrounding a two-pole rotor, and each slip ring by a two-coil coupling, one coil rotating. Specification 569,303 is referred to.
Patent GB-1253621-A (GB)
Title: Prefabricated building panels
Inventor: BELL JAMES BEATTIE
IPC: E04C2/04
Filed: 1969-03-04
Abstract: 1,253,621. Moulding brick panels. COAL INDUSTRY (PATENTS) Ltd. 3 March, 1970 [4 March, 1969], No. 11446/69. Heading B5A. [Also in Divisions E1-E2] A brick panel is made by laying a plurality of bricks 16 in a horizontal layer, placing reinforcement 24 in slots 14 and/or 18 between the bricks, and passing through the gaps between the bricks in adjacent rows, and pouring mortar in the slots and between the bricks. A layer of foam plastics may then be cast over partially projecting reinforcement or foam plastics slabs or inflated bags positioned on top of the layer and a further layer of slotted bricks followed by further mortar applied thereto. Reinforcement rods 22 connected by wires 28 may be laid between the rows in a layer. The reinforcement which may be rods or a hoop of wire having cross ties may project at the ends to form lifting loops or reinforcement for attaching to cast floors or ceilings. Window openings have angle section members across the top thereof which are connected to the reinforcement.
Patent GB-723809-A (GB)
Title: Improved method for controlling the composition of molten metal and apparatus for use therein
IPC: G01N33/20
Filed: 1952-05-06
Abstract: 723,809. Casting-machines. WESTBERG, C. M., and CLAXTON, S. H. May 6,1953 [May 6, 1952], No. 11464/52. Class 83 (1). In a method and machine for producing molten metal of a desired composition, a specimen of the metal is fed in the molten state on to a smooth-surfaced rapidly rotating disc 6 of good heat-conducting material, solidified strips of the metal are collected from the disc, and then the further treatment of the mass of molten metal is controlled in accordance with the analysis of the strips. The disc is preferably of copper or silver but may be of gold; molybdenum, tungsten, zinc or rhodium, depending upon the nature of the molten metal and the amount of the sample required. The metal is spun into thin ribbons which collect within a bowl 8. Nitrogen, hydrogen, or other inert gas may be admitted to the interior of the bowl.
Patent GB-179919-A (GB)
Title: Improvements in, and apparatus for, effecting the removal of chlorides from milk
IPC: A23C9/142
Filed: 1922-04-24
Abstract: 179,919. Puglia, J., and Meunier, C. May 11, 1921, [Convention date]. Diffusion apparatus for liquids.-Milk is treated for the removal of chlorides by bringing it into contact with an osmotic diaphragm, the other side of which is in contact with warm water. A series of frames a - - d are bolted together with diaphragms f of osmotic material, such as paper treated with sulphides, between them. The frames c are filled with milk through the cock g, and the frames a, b, d with water through the cock h, the pressure being indicated by the level of the liquids in vertical tubes i, j. Other upright tubes are provided on the top of the frames c. The cocks are closed and water is then circulated through the pipes m, d', n, suction being applied to the pipe n. The. water may be heated but the temperature does not exceed 70‹ C. Thermometers are provided in the frames c, d.
Patent GB-294693-A (GB)
Title: Improvements in or relating to mechanical loading and conveying apparatus for use in mines
IPC: E21F13/06
Filed: 1927-04-29
Abstract: 294,693. Hoy, A. Y. April 29, 1927. Portable endless belt or chain conveyers; driving- gear; discharging-devices. -A loading-machine, which may be similar to that described in Specification 277,857, operating along one side of a row of props 24 overlaps and delivers on to a tail conveyer 17, 18, 19, and transverse conveyer 21 delivering to the tubs 26 or to a face conveyer. By this arrangement the loader can work along the distance between several props before it is necessary to move the tail conveyer. The transverse conveyer section 21 may be mounted on a jib 22 pivoted on a vertical axis to swing clear of the props whilst the conveyer is being advanced. The delivery end 19 of the tail conveyer is mounted on a wheeled truck 20 which is connected with the forward end 17 by a plate 50. The tail conveyer 17 - - 20 is moved forward by hauling or towing from the loader. The tail conveyer and the transverse conveyer 21 are driven from a motor on the truck 20. The shoot 16 of the loader may be dispensed with. The transverse conveyer 21 is inclined so that there may be sufficient head-room above the receiving end. -
Patent GB-684822-A (GB)
Title: Improvements in and relating to planing machines
IPC: B23D7/00
Filed: 1951-05-17
Abstract: 684,822. Planing. WALDRICH, O. May 17, 1951 [May 17, 1950], No. 11585/51. Class 83 (iii). A planing tool head 11, which is adjustable on a beam 10 by an electric motor, comprises a main slide 14 fed or pivoted on the head by a motor 13 (not shown), and a subsidiary toolcarrying slide 16 which, for the return stroke, is retracted from the work and, for the cutting stroke, is moved forward against a stop 32 and clamped by means 29. The slide 16 may be moved by a hydraulic piston or by a motor 15, a screwed spindle 23 and nut 24, the nut having limited axial play 28 in the slide so that, after the slide engages the stop 32, the nut has sufficient further movement to engage the taper surfaces 30, 31 of the clamp 29 and of the slide. During the cutting stroke, the main slide 14, the head 11, the machine columns and other parts are clamped by means such as disc springs 39 under the heads of bolts 36 but these clamps are released by hydraulic pressure supplied above the heads of the bolts, the supply being automatically controlled by the retracting movement of the slide 16, or by the motors 13 or 15 or the slide 14; the subsidiary slide 16 may be clamped by similar means, in place of the wedge clamp 29. For cutting deep grooves, a support 21 is provided behind the tool 20. A series of staggered tools may be mounted in the tool slide.
Patent GB-621734-A (GB)
Title: Improvements in and relating to coating processes and apparatus therefor
IPC: H01J9/22
Filed: 1945-05-10
Abstract: <PICT:0621734/III/1> Apparatus for coating a vitreous envelope with finely divided material comprises an electrode 33, Fig. 1, adjacent the wall part to be coated and an external fibrous electrode 25.  A corona discharge is set up between the two electrodes 25, 33, and the coating material is introduced around the active end of the electrode 33.  The fibrous electrode 25 may be of cotton wicking mounted in a V-shaped metal backing, tap water being passed through the V-shaped piece of metal to moisten the wicking as shown, or of steel wool with a wooden backing, Fig. 3 (not shown). The electrode 33 has a sharp point 40 or is shaped as a razor-edged disc as described in Specification 6584/43, as open to inspection under Sect. 91, and is moved upwards by cord 34 passing over pulleys 35 during the coating operation, while the envelope T is rotated at a constant speed.  The point 40 of the electrode 33 may consist of a separate steel needle removably mounted in an axial bore in the rod 33.  The high voltage source is preferably ordinary D.C., but may be pulsating D.C., and the applied voltage is 8000-12000 volts.  The tube T is the envelope of a fluorescent lamp of the low pressure positive column discharge type, and the coating is luminescent material.  The finely divided coating material is introduced around the tip 40 of the electrode 33 by means of a smoke generator 50 which may be of the form described in Specification 621,778, [Group VI].  In another form, Figs. 5, 6 (not shown), the end of the bulb of a cathode-ray tube may be coated withlu minescent material in a similar manner.  The fibrous electrode has a foraminated backing so that liquid can be supplied to it, and the fibrous electrode may be revolved or otherwise moved relatively to the bulb or vice versa to render the coating more uniform.  The finely divided coating material is introduced through an axial bore in the internal electrode corresponding to 33, Fig. 1.  The internal electrode may be moved relatively to the bulb wall during the coating process when necessary.  In all forms, the coating need not be luminescent material but can be an internal glaze or a substance to modify the transmission of light or other radiation. The envelope may be of lead, lime, or borosilicate glass. Specification 561,773, [Group XL], is referred to.  The Specification as open to inspection under Sect. 91 describes a form, Fig. 5 (Cancelled, not shown), in which the external electrode consists of a tungsten wire wrapped helically around the tube.  It is stated that in Fig. 5 (as accepted) the liquid may form the electrical contact between the external fibrous electrode and the vitreous envelope.  This subject-matter does not appear in the Specification as accepted.
Patent GB-527678-A (GB)
Title: Improvements relating to ski-sticks
IPC: A63C11/24
Filed: 1939-04-19
Abstract: 527,678. Ski-sticks. ACCLES & POLLOCK, Ltd., and WHITE, F. C. April 19, 1939, No. 11765. [Class 132 (i)] A steel-shafted ski-stick has secured to near one end of its shaft, a metal flange b with a central boss d and a number of holes c for the attachment of the usual ring or basket. For protection against corrosion the portion of the shaft a lying between flange b and a spike e is enclosed by a stainless steel or other non- corrodible sheath f, which may be separate from both spike e and flange b or may be integral with either. Various combinations of sheath, flange and spike are described.
Patent GB-1309065-A (GB)
Title: Treatment of polyester fibres
IPC: D01F11/08
Filed: 1971-04-28
Abstract: 1309065 Polyester filaments INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 28 April 1971 [29 April 1970] 11951/71 Heading B5B [Also in Division D1] Polyester fibres are treated with a composition comprising a non-polymeric N-(2-hydroxy-3- halopropyl) substituted nitrogen compound. The compound may be derived from primary and secondary aliphatic, cycloaliphatic, araliphatic, aromatic and heterocyclic mono- and polyamines, from amides (both carbo- and sulphamides), lactams, imides (including guanidine), urea, thiourea, biuret, melamine and urethanes. Many such compounds are listed. The compound may be applied to the melt spun filaments as a solution or emulsion in water and/  or ethylene glycol monomethyl ether, by means of a spinning treatment roll. An antistatic spinning treatment fluid comprising paraffin fats or oils and emulsifiers may be incorporated in the composition comprising the N-substituted compound, and may also be applied to the fibres as an after-treatment using a further spinning treatment roll. The fibres may be polyethylene terephthalate. Treatment enhances the adhesion of the fibres to rubber (see Division D1).
Patent GB-1564450-A (GB)
Title: System for treating and recovering energy from exhaust gases
IPC: F23J15/00
Filed: 1977-03-22
Abstract: The process for treating flue gases prior to their release into the atmosphere comprises dedusting, cooling by heat exchange with a heat exchange medium to room temperature and separating off gaseous pollutants by precipitation onto bodies of large surface area over which the flue gases are passed. The heat exchange medium evaporates during heat exchange and is then used as a working medium by a machine. To separate off the gaseous pollutants, the flue gases are passed in a compressed state through regenerators which have a temperature drop to below the condensation point of the gaseous pollutants. After leaving the coolers, the gases are further cooled by expansion and are passed in counter-current over the coolers to precool them and the gases are reheated to ambient temperature during this. This process allows a complete removal of pollutants with the furthest possible utilisation of the total heat content of the flue gases and thus economically.
Patent GB-395480-A (GB)
Title: Improvements in clutch mechanism
IPC: F16D13/06
Filed: 1932-04-27
Abstract: 395,480. Clutches. HENRIOD, C. E., Areuse, NeuchÔtel, Switzerland. April 27, 1932, No. 12077. Convention date, April 28, 1931. [Class 80 (ii).] A clutch is engaged and disengaged by the power in a rotary driving shaft 1 by advancing alternatively obstructive cams 12, 13 into engagement with rims 71, 711, Fig. 2, respectively on a disc 7, Fig. 1, rotating with the shaft 1. The disc 7 is pivoted near one edge at 9 upon a disc 3 fast on the shaft 1. The rims 7<1>, 7<11> are mutually eccentric and the effect of engaging one of these rims with one of the obstructive cams 12, 13 is to bring the engaged rim concentric with the shaft 1 so as to rock the disc 7 on its pivot 9. The centre of gravity g, Fig. 2, of the disc 7 is between the centres a, b of the rims 71, 7<11>, so that the rocking disc 7 is held by centrifugal force in each of its end positions. This rocking of the disc 7 by rocking a double cam 10, Fig. 3, engages and disengages the clutch by opening and allowing to close a pair of clutch shoes 4, 5 which are pivoted at 6 upon the disc 3. The shoes 6 are adapted to grip inside a drum 11, Fig. 1, fast on a driven shaft 2. The cams 12, 13 are fast on a control shaft 14 turnable by suitable means. The Specification as open to inspection under Sect. 91 indicates a construction of changespeed gear with multiple eccentric planetary trains not perceptiblv different from the arrangement described in Specification 384,658. This subject-matter does not appear in the Specification as accepted.
Patent GB-1022009-A (GB)
Title: Improvements in or relating to electro-dynamic devices
IPC: H04R9/04
Filed: 1964-03-23
Abstract: 1,022,009. Microphones; loudspeakers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 23, 1964 [March 26, 1963], No. 12090/64. Heading H4J. An electro-acoustic transducer of the dynamic type (e.g. a loud-speaker or microphone) comprises a unitary structure 1 (Fig. 1) of permanent magnet sintered oxide anisotropic material having a coercive force of at least 750 oersteds and formed with a plurality of poles, separated by grooves forming air gaps 3 between the poles. The poles are located in a common plane orthogonal to the direction (A) of easy magnetization of the material. The transducer further comprises a flat diaphragm 2 carrying at least one flat electrical conductor 5 which is formed so as to include a plurality of strips connected in series and extending parallel to each other and arranged so as to lie adjacent the air gaps 3 between the poles. The diaphragm 2 preferably is of polyester foil and conductor 5 is of aluminium. Duets 4 reduce acoustic damping. The air gaps 3 may be of rectangular or trapeziform cross-section. The ducts 4 may be formed by providing the unitary structure 1, on both sides, with a plurality of parallel grooves, the two groups of grooves being at right-angles to, and intersecting, one another. In a loud-speaker, two identical unitary structures 1 may be provided, one on each side of the diaphragm 2.