baber/WOPTO huggingface dataset:
Patent GB-108015-A (GB)
IPC: H01R4/50
Abstract: 108,015. Beaver, C. J., and Claremont, E. A. July 17, 1916. Couplings. - A washer for use in electric couplings consists of a U- sectioned ductile metal piece filled with a composition of plastic, impervious, and resilient material and metal powder and/or filaments. The material may be gutta-percha, vulcanized bitumen, &c., and, in use, the washer or a series of the washers is adapted to be compressed axially so that the composition is expressed inwardly on to the conductor. In the case of a screw-threaded conductor, nuts, which may be in one with a washer as described in Specification 107,100, [Class 99 (i), Pipes and tubes, Joints &c. for], may be used to effect the expression of the composition. In other cases wherein the washers can be threaded on to a conductor from one end, the axial compression of the washers may be affected by the drawing together of end plates by means of bolts and nuts, or by the screwing into an outer sleeve of end abutment plugs bearing on the washers; in the sleeve arrangement, the sleeve may have a slit to allow of the introduction of compound to prevent corrosion. The joint shown in Fig. 3 is intended for use where the parts cannot be threaded on from an end of the cable, and in this construction the washers b are made in halves and are compressed by the drawing together of end plates h<1>, also made in halves, by means of nuts j<1> upon bolts j. The bolts pass through overlapping lugs g<1> upon a twopart sleeve g which is held in position by compressible distance-pieces k. One end plate is formed with a terminal d. Specification 105.940, [Class 99 (i), Pipes and tubes, Joints &c. for], also is referred to.
Patent GB-270080-A (GB)
Title: Improvements in or relating to clutches, brakes or the like
IPC: F16D43/10
Filed: 1926-04-24
Abstract: 270,080. Hall, J. P. April 24, 1926. Disc brakes; actuated by speed regulators; magnetic brakes.-A centrifugal brake comprises: a pair of discs c', c<2> movable axially on a sleeve b secured to a shaft a and a number of weights d movable radially against the action of adjustable springs d<1> on slides e secured to the sleeve between the discs. The tapered upper part of each weight co-operates with inclined parts on the discs c<1>, c<2> so that, as the weights move outwards under the action of centrifugal force, the discs are moved apart and into contact with fixed plates i, i<1>, the speed at which the brake comes into operation being determined by the adjustment of the springs d'. As shown, the speedlimiting brake is combined with an electromagnetic brake, the plate i being movable under the action of the magnet.
Patent GB-567854-A (GB)
Title: Improvements in machine made wig nets
IPC: A45D8/40
Filed: 1943-07-05
Abstract: 567,854. Lace. BYARD MANUFACTURING CO., Ltd., HUNTER, A. E., and TOPOTT, S. F. July 5, 1943, No. 10854. [Class 74 (i)] In a strong double warp traverse net for use in the manufacture of wigs, each warp W, W<1>, intermediate a predetermined number of sequential pillarings with a bobbin thread B, B<1>, alternately crosses and ties with an adjacent warp of the same face, and at that position where the front warps cross, the rear warps tie, and where the front warps tie, the rear warps cross. Each warp twists in an opposite sense in successive pillarings and in each pillaring the front and back warps pillar in an opposite sense. In the Figure, which shows the back warps, the warps are shown crossing at C, C<1> and tying at T, T<1>.
Patent GB-1284202-A (GB)
Title: Reciprocating electromagnetic pump
IPC: F04B43/00
Filed: 1971-04-23
Abstract: 1284202 Reciprocating motors SOC ANON STOP 23 April 1971 [5 May 1970] 10899/71 Heading H2A [Also in Divisions F1 and H1] An electromagnetically-actuated, diaphragm pump comprises a diaphragm 12 moved on its suction stroke by its resilience and on its discharge stroke by energizing a coil 40 to move soft iron core 54 and rod 56 downwardly, a switch 90, 94 controlling energization of coil 40 being operated towards the end of each stroke by abutments 60 and 62 on rod 56 engaging a sleeve 66 which slides to move an elastic blade 80 over-centre to open or close contacts 90, 94. Blade 80 is supported by notches 86, 92 in insulated portions of the pump housing, and has tongue portions 88, 95, Fig. 4, engaging elastic blades 78 mounted in apertures 76 of sleeve 66. Core 54 engages an elastic foam washer 52 at the end of the suction stroke. Lift valves are provided in the pump inlet and outlet, Fig. 3 (not shown).
Patent GB-863093-A (GB)
Title: Oscillating sieve for greasy material
IPC: B07B1/30
Filed: 1959-03-31
Abstract: 863,093. Sifting apparatus. BETEILIGUNGS - UND PATENTVERWALTUNGESELLSCHAFT. March 31, 1959 [April 1, 1958], No. 10930/59. Class 117 An oscillating sieve for greasy material has balls 2 movable on its surface 1 to counteract blockage of the meshes, and comprises cross members 3 above its surface to restrict the movement of the balls but not of the material to be sieved. As shown, the cross members depend from angle irons 4 attached to side walls 5 of a sieve box. The cross members may be of wood or sheet metal and may be readily detachable.
Patent GB-722349-A (GB)
Title: A ventilator
Inventor: ALLMAN EDWARD JAMES
IPC: F24F7/02
Filed: 1952-04-30
Abstract: 722,349. Ventilators. NEWRIDGE ENGINEERING CO., Ltd. April 10, 1953 [April 30, 1952], No. 10940/52. Class 137]  A roof ridge ventilator comprises two end members A, Fig. 4, interconnected by two side members B, a weathering cap C between and spaced from the side members, a throat D, Fig. 3, in open communication with the building on which the ventilator is mounted and a damper J, for adjusting the opening in the throat, pivoted centrally in the plane of the damper across the throat and carrying a gravity operated biasing device remotely controlled from within the building for maintaining the damper in an open or closed position. The damper J carries an inclined channel K containing a metal ball L so that on pulling one of the chains M<SP>1</SP>, M<SP>2</SP> the damper pivots and the ball L moves to the other end of the channel to maintain the damper in its extreme position. The throat D is formed by a pair of plates D 1 , D 2  having louvres H at their tops and the cap C is secured to the end members A. A pair of weathering louvres E and a cross baffle F are provided. The side members B are spaced away from the roof at G to allow rain to escape In a modification, Fig. 6, the side members B have inclined upper surfaces P, the louvres E being omitted. A central longitudinal baffle Q is fitted above the weathering cap C. The sides B may be corrugated or dimpled at N. According to the Provisional Specification, balanced flap type dampers are employed.
Patent GB-691374-A (GB)
Title: Neutral esters of thiophosphoric acid
IPC: C07F9/165
Filed: 1950-05-03
Abstract: Neutral esters of thiophosphoric acid are manufactured by a process which comprises heating an alkali salt of a dialkyl phosphite with an alkyl or substituted alkyl-thiocyanate or alkylene dithiocyanate. The invention also comprises dialkyl S-alkyl mercapto-alkyl thiophosphates, diethyl S - b  - ethylmercaptoethyl thiophosphate boiling at 137-141 DEG  C. at 1 mm. pressure and diethyl S-b -methylmercapto-ethyl thiophosphate boiling at 134-138 DEG  C. at 2 mm. pressure.  The alkyl radicals of the alkyl thiocyanates may be for example, methyl, ethyl, propyl, butyl, hexyl, dodecyl and they may be substituted for example by aryl and the carbon chain may be interrupted by hetero atoms, e.g. sulphur.  The alkylene radicals may belong to the ethylene series. Dialkyl S-alkylmercapto-alkyl thiophosphates may be produced by using alkyl mercaptoalkyl thiocyanates as starting materials. Inert solvents such as benzene or homologues thereof may be used as reaction media.  In examples: (1) Diethyl S-methylthiophosphate, (2) diethyl S-ethyl thiophosphate, (3) diethyl S-propylthiophosphate, (4) diethyl S-isobutyl thiophosphate, (5) diethyl S-hexyl thiophosphate, (6) diethyl S-dodecyl thiophosphate, (7) diethyl S-benzyl thiophosphate, (8) tetraethyl S,S-ethylene dithiophosphate, (9) (C2H5O)2 PO.S C2H4.S.C2H5 and (10) (C2H5O)2PO.S.C2H4.S CH3 are prepared by reacting diethyl phosphite in a solvent with methyl, ethyl, n-propyl, isobutyl, n-hexyl, dodecyl, benzyl thiocyanates, ethylene dithiocyanate, b -ethyl mercaptoethyl thiocyanate and b -methylmercapto ethyl thiocyanate respectively.
Patent GB-142105-A (GB)
Title: Improvements in and relating to electric arc systems and particularly to electric arc welding systems
IPC: B23K9/073
Filed: 1920-04-20
Abstract: 142,105. Lincoln Electric Go., (Assignees of Homrighaus, A. H.). Feb. 26, 1915, [Convention date]. Heating by electricity.-An electric arc particularly for use in welding, is supplied from a generator 1 having an adjustable independently - excited field winding 3 and an opposing series field 6. As shown, the series field is shunted by a variable resistance 7. In a modification, t h e number of turns of the series field is variable, and where two arcs are to be supplied, switching means are provided by which the series field may aid the independent field instead of opposing it. An adjustable inductance 8 is placed in the supply circuit. In an arrangement supplying two arcs in parallel, one of the arcs is drawn from a carbon electrode, the welding material being fused off a metal pencil.
Patent GB-1335527-A (GB)
Title: Drawing apparatus
IPC: B43L7/00
Filed: 1972-03-09
Abstract: 1335527 Rulers B HOARE and V HOARE 9 March 1972 [22 March 1971] 11022/72 Heading B6P [Also in Division G1] A ruler 2 is attached to a drafting machine head by mounting means 1 permitting the ruler 2 to be rotated about its longitudinal axis, in order to change the operative scale A, B. The ruler may be of parallelogram cross-section, and have two scales, or may be of hexagonal cross-section (Fig. 5, not shown) with four scales, and be provided with a mounting means 1 at each end.
Patent GB-269940-A (GB)
Title: Improvements in seaplanes
IPC: B64C35/00
Filed: 1927-04-25
Abstract: 269,940. Vorobeitchik, J. April 24, 1926, [Convention date]. No Patent granted (Sealing fee not paid). Floats, arrangement of. - Each float of a seaplane is connected to a corresponding fuselage by the parallel connections shown so that during flight the float may be swung up into contact with the fuselage to complete its streamline form. As the float is raised the diagonal stays slide within the fuselage, and the connections are completely enclosed during flight.
Patent GB-1385380-A (GB)
Title: Semiconductor rectifier apparatus
IPC: H01L25/03
Filed: 1972-03-09
Abstract: 1385380 Converter construction BBC BROWN BOVERI & CO Ltd 9 March 1972 [11 March 1971] 11149/72 Heading H2F [Also in Division H1] A rectifier apparatus (e.g. utilizing SCRs) comprises a plurality of stages arranged in a stack, each stage having a screening member which is capacitatively coupled to two further screening members connected to the anode and cathode of the stack respectively, the capacitative couplings being arranged to form potential dividers so that reverse bias is distributed equally across each stage. As shown, Fig. 1, each stage is provided with a screen 3 to 7 each of which forms a capacitative potential divider with the stack screen members 1, 1<SP>1</SP> and 2, 2<SP>1</SP>. The equivalent circuit of one embodiment of the invention is shown in Fig, 3, each stage comprising two SCRs 8, represented by their reverse bias capacitance C, surrounded by one of the screens 3 to 7 which is connected to the connection point S between the devices of the stage. Two stack screens 1, 2 are arranged so that the capacitances, e.g. C 41 , C 24  which are determined by the distances D 41  and D 24  form potential dividers which swamp the effects of stray capacitances to earth and hold the connection points S of the stages at equally spaced potentials.  In another embodiment, Fig. 2a (not shown), each stage comprises four SCRs provided with two screening members connected to the common points of the first and second pairs of devices and arranged so that they are appropriately capacitatively coupled to the stack screening members. A pulse transformer for firing the SCRs may be mounted along the centre of the stack.  The stack screening plates may form part of a vessel which may contain oil for insulation and cooling purposes. The screening members may have other shapes. (For Figures see next page.)
Patent GB-1483989-A (GB)
Title: Tantalum powder and method of making the same
IPC: H01G9/042
Filed: 1976-03-19
Abstract: 1483989 Tantalum powder composition FANSTEEL Inc 19 March 1976 [14 July 1975 ] 11188/76 Heading C7D [Also in Division H1] A powder composition consisting of Tantalum powder and a phosphorous containing material in an amount equivalent to from 5 to 400 p.p.m. of elemental phosphorous. The powder may be  agglomerated e.g. by heating in vacuum at 1390C, pulverizing and sieving either before or after addition of the phosphorus containing material which may be ammonium, sodium, potassium, calcium, barium, lead orthophosphates, ammonium mono-hydrogen orthophosphate, ammonium dihydrogen orthophosphate, sodium mono-hydrogen orthophosphate, sodium di-hydrogen orthophosphate, potassium di-hydrogen orthophosphate, elemental phosphorus, metallic phosphides, phosphorus oxides and acids, and alkyl phosphates, alternatively the Tantalum powder may be in the form of Tantalum hydride which is converted to Tantalum during agglomeration. The powder composition may be pressed and sintered at 1,600-2,000C in vacuum to form a Tantalum anode or alternatively Tantalum powder may be pressed into the form of a compact treated with a solution of the phosphorus containing material and sintered to form an anode which may be used in the manufacture of electrolytic capacitors.
Patent GB-1460833-A (GB)
Title: Apparatus for curing solvent free coating material-
IPC: F21V29/00
Filed: 1974-03-13
Abstract: 1460833 Curing coatings on webs; lamps SUN CHEMICAL CORP 13 March 1974 [19 March 1973] 11194/74 Headings F4G and F4R An apparatus for curing solvent free coating material on a web 15 comprises radient energy emitting means in the form of an assembly 30 including a lamp 34, e.g. an ultraviolet lamp, a reflector 36 and a shutter 40 which is selectively movable between two positions in one of which it is interposed between the lamp 34 and the reflector 36 assembly and the web and in the other of which it is clear of the assembly of lamp 34 and reflector 36. Means is provided for conveying the web past the assembly 30. As shown assemblies are mounted in staggered relation above and below the web 15, a shutter of one assembly when moved to its position to clear the assembly co-operating with an assembly on the opposite side of the web to absorb any radiation passing the web. The shutters may be actuated individually or simultaneously using piston and cylinder device(s) (Figs. 4, 6, not shown) acting through a linkage or simultaneously using a rack and pinion arrangement (Fig. 8, not shown). The shutters may be provided with rollers which are guided in the apparatus housing 22 or be guided on pins (Fig. 11, not shown). The end fittings of the lamps are contained in chambers (Figs. 4, 6, not shown) which are cooled by drawing air through the same. The shutters and reflectors are cooled by passing fluid through conduits 116, 126 associated therewith. Screens 144 are provided at the web inlet 24 and outlet 26 to prevent damaging radiation from leaving the apparatus. The inlet screen 144 may be in two parts, each hinged to the housing 22, such that when they are pivoted away from the inlet the interior of the housing may be serviced. Alternatively the housing may be in two parts which are bodily movable away from each other by fluid operated means (Fig. 7, not shown) or may be hinged and pivotably separated by a fluid operated means (Fig. 14, not shown). In the former case a radiation shield is provided around the join of the parts. The radiant energy emitting means may be on the one side only of the web (Fig. 9, not shown). The reflectors comprise a part which is part elliptical in section and two parts each at a different end of the first mentioned part. Alternatively two reflectors may be provided in one housing, two lamps co-operating with the reflectors (Fig. 11, not shown).
Patent GB-663309-A (GB)
Title: Improvements relating to the production of quartz-to-metal seals
IPC: C03C27/04
Filed: 1949-04-27
Abstract: 663,309. Cupping; uniting by fusion. BRITISH THOMSON-HOUSTON CO., Ltd. April 27, 1949 [May 1, 1948], No. 11209/49. Class 83 (iv). [Also in Groups XXXVI and XL (a)] A molybdenum disc 4 is formed with an annular corrugation 6 by placing it between two steel plates 13, 14. The upper plate 13 carries a plunger 16 bearing against a hard steel ball 17. The inner edge 20 of opening 15 is flared out so that an annular portion of the disc may move upward when the ball 17 is pressed down by plunger 16 against the centre of the disc. A thin sheet of a softer metal such as brass or nickel may be placed between the lower plate 14 and the disc 4. This is forced away from the centre of the disc under pressure, thus causing the depth of the corrugation to be increased. The molybdenum disc may be hermetically joined to a tungsten rod by brazing, using platinum or palladium as the brazing material. Specification 658,218, [Group XXXVI], is referred to. Reference has been directed by the Comptroller to Specification 635,593, [Group XXXVI].
Patent GB-806896-A (GB)
Title: Improvements in or relating to apparatus for displaying the properties of light
IPC: G09B23/22
Filed: 1956-04-12
Abstract: 806,896. Educational appliances. GRIFFIN & GEORGE Ltd., and MORRIS R. H. April 12. 1957 [April 12. 1956], No. 11215/56. Class 146(2) An apparatus for displaying the properties of light comprises a light box 28 which has means for supporting a light source therein, an opening at one side, and wing portions 33 extending from the opening substantially in line wth the sides of the box and each having a number of locating means spaced apart along its length for accommodating a number of elements which modify the light rays from the source. The box, which may be moulded from metal or plastics, is open at the bottom, and has on apertured front wall 32, and the side walls 29 and wings 33 have sharp edged horizontal heat radiating ribs 34.. Ribs 35, 36. 37 on the wings 33 form guideways for holding equipment such as a shutter 48 slotted to produce one or more parallel beams, lens 53, and a centrally apertured stop plate 54. The lamp has a straight vertical filament 43 and is adjustable lengthwise of the box, being then secured by a clamping ring 40. The base board 10 standing on rubber feet 11 has a turntable 21 rotatable thereon on which a reflecting mirror &c. may be mounted. e.g., by clips, the turntable bears a scale 24, and the board and turntable are matt white. The box is secured to the base 10 by split pegs 44. Fig. 19 shows a multiple part adjustable mirror, mirror part 62 being fixed and mirror parts 63, 64 being adjustable about pivots 69, 70 by means of screws 78 and urged towards the position shown in Fig. 19 by springs 71, 72. This mirror may be positioned by engagement of a projection 89 on inclined bifurcated portions 81, 82 in groove 83 or 84, and if a shutter with three slots is arranged between ribs 37 and the box, and a screen with three vertical transparent coloured strips, e.g., red, green and blue, 63, arranged between ribs 36, the mirrors 62, 64 may be used to combine differently coloured lights. The box may be arranged further from the turntable by means of an extension piece which may be attached to the bas 10 and has split pegs for securing the box. The side and back walls are recessed at 42 to permit ventilating air to enter the box.
Patent GB-1429856-A (GB)
Title: Transducers
IPC: H04R17/10
Filed: 1973-03-07
Abstract: 1429856 Piezoelectric devices TAGA ELECTRIC CO Ltd 7 March 1973 11215/73 Heading H4J An electrostrictive transducer arrangement is fed by an oscillator at its resonance frequency and the difference between signals at regions of different vibrational stress in the transducer is detected and used to generate a signal which is fed back to the oscillator to maintain the oscillator at the resonance frequency of the transducer arrangement. This may change with temperature or load. The transducer comprises barium zirconate-barium titanate provided with silver electrodes. In a first arrangement (Fig. 5) a piezoelectric disc 21 having a single electrode 22 on one face and two circular concentric electrodes 23, 24 on its opposite face is attached to a cleaning tank 25 and driven in the radial mode of resonance at the resonance frequency of the disc 21 and tank 25 from the output terminals 28, 32 of an oscillator. In the radial mode of resonance the maximum vibration stress is at the centre of the disc and the minimum vibration stress is at the periphery. The static admittance of the disc 21 is the same at electrodes 23 and 24 but the dynamic admittance at the electrode 24 is larger than that at electrode 23. During vibration, current flows from the primary winding 30 of a transformer 29 to the electrodes 23, 24 and there is produced thereby a voltage in the secondary winding 33 proportional to the speed of vibration This operates a feedback signal to the oseillator which follows the resonance frequency of the disc 21 and tank 25 even though the amount of liquid in tank 25 or the temperature may change. A cylindrical piezoelectric element (Fig. 6) has a metal exponential horn 40 at one end, is provided on its outer surface with three cylindrical electrodes 44, 45, 46 and on its inner surface with a common electrode 42. Its oscillator and feedback arrangement is similar to that of Fig. 6.
Patent GB-440303-A (GB)
Title: Improved means for supercharging internal combustion engines on aircraft
IPC: F02B33/00
Filed: 1935-04-11
Abstract: 440,303. Pumps. MODESSE, A., 48A, Rue Courbe, Brussels. April 11, 1935, No. 11238. Convention date, April 11, 1934. [Class 7 (ii)] In a supercharged engine, a portion of the charging air is withdrawn by a pipe 8 from the delivery side of a turbo-compressor 2, 3, or other compressing means, compressed in a compressor 4, cooled at 11, and returned to drive the compressing means, where it rejoins the main stream, which is preferably collected by a tube facing the direction of motion. The compressor 4 is of the highpressure reciprocating-piston type, and the air is supplied in the form of jets which act on blades, or buckets, of the turbo-compressor, a pressure gauge 12 and a hand cock being provided to regulate the supply. An alternative compressing means comprises a Venturi tube, facing the direction of motion, into the constriction of which the cooled high-pressure air is supplied by a nozzle facing the direction of flow.
Patent GB-218422-A (GB)
Title: Improvements in and connected with smoking pipes
IPC: A24F1/08
Filed: 1923-04-26
Abstract: 218,422. Hossick, T. R. April 26, 1923. Tobacco pipes. - The inner end of the mouthpiece B is provided with an extension C, solid at the free end C<2> and having elongated cross-cuts C' communicating wit'h the smoke bore.