baber/WOPTO huggingface dataset:
Patent GB-1220145-A (GB)
Title: Improvements in or relating to magnetic couplings
IPC: H02K49/00
Filed: 1968-07-02
Abstract: 1,220,145. Magnetic couplings. COMPAGNIE DE CONSTRUCTION MECANIQUE PROCEDES SULZER. 2 July, 1968 [3 July, 19671, No. 31442/68. Heading H2A. An eddy current magnetic coupling comprises a driving rotor and a driven rotor both made of good magnetic permeability material and both adapted to rotate in a magnetic field produced by a fixed winding or by at least one rotating permanent magnet, one rotor being provided with projecting teeth and the other, opposite the teeth, with a continuous layer of high electrical conductance metal. An asynchronous coupling, Fig. 1, comprises a stationary winding 2, a driving rotor 3 having two toothed ferromagnetic rings 8, 9 separated by a ring 11 of non-magnetic material, and a driven rotor 4 comprising a ferromagnetic annulus 15 carrying opposite the teeth 12, 13, layers 17, 18 of conductive metal. The driving rotor may be located radially within the driven one, Fig. 4 (not shown), and the winding may be located radially within the rotors, Fig. 6 (not shown). Alternatively, Fig. 7 (not shown), the two rotors may project axially into an open ended channel in a C-shaped stationary member (45), this channel also containing the winding (47). In a discoidal motor, Figs. 8, 9 (not shown), radially disposed teeth on discs (55) carried by one rotor are disposed axially adjacent conductive metal layers (68) on discs carried by the other rotor. In a further asynchronous coupling, Fig. 17, a plurality of circumferentially spaced axially magnetized magnets 86 are mounted between two toothed ferromagnetic rings 84, 85 on the driving rotor. The magnets may be replaced by a single axially magnetized annular magnet. In a modification, Fig. 19 (not shown), torque control is effected by an axially movable auxiliary magnetic member (90) located on a stationary member (94) radially within the driving rotor. In a further modification, Figs. 20, 21 (not shown), a heteropolar coupling comprises a plurality of oppositely circumferentially magnetized permanent magnets (102) mounted on the driving rotor by polepieces (103) bolted to the rotor body (101). In a synchronous coupling, Fig. 10, one ferromagnetic ring 8 carries a set of teeth 12 and a second ring 9 is provided with a set of teeth 71 of smaller pitch than the teeth 12, there being formed on the driven rotor 4 opposite the teeth 71 a further set of teeth 74 of the same pitch as the teeth 71, the spaces between adjacent teeth 71 and between adjacent teeth 74 being filled by solid or hollow conductors to provide extra synchronizing torque.
Patent GB-1401215-A (GB)
Title: Process for solid polyamino acid containing repeating  aspartic and glutamic acid units
IPC: A61L15/26
Filed: 1972-07-05
Abstract: 1401215 Semi permeable membrane AJINOMOTO CO INC 5 July 1972 [5 July 1971] 31473/72 Heading B1X [Also in Division C3] Solid poly(aminoacids) containing repeating aspatic or glutamic acid units are modified by treatment with a compound containing at least one isocyanate group. The poly(aminoacid) may be obtained by saponifying a polyaminoacid containing aspatic or glutamic acid omega-ester units and may be a homopolymer, a copolymer of the acid with its omega-ester or other amino acid units or a mixture of such homo- or co-polymer with a different polyamino acid. Various possible other acids are specified. The isocyanate may be aliphatic, aromatic or cycloaliphatic and may be a methane prepolymer. The solid polymer may be in the form of a film, tube, hollow filament, fibre, woven or knitted fabric, chip, flake, capsule or powder. The polymer may be blended with various other condensation, addition or natural polymers and may contain plasticisers, fillers or colouring agents. The treated polymers are stated to be useful for surgical membranes, artificial skin, artificial kidney membranes, surgical sutures, gauze and membranes for reverse osmosis or ultrafiltration. Ex-4 illustrates dialysis of egg albumen.
Patent GB-1002056-A (GB)
Title: Solutions of poly-1-butene, products obtained therefrom and methods of making such solutions
IPC: C08K5/01
Filed: 1964-08-04
Abstract: A solution is composed essentially of (A) 5-40% by weight of polybutene-1 having an intrinsic viscosity, as measured in tetralin at 145 DEG  C., of 0.1 to 6, a density of 0.89 to 0.94 gram per millilitre, a melting point of 110 DEG  to 150 DEG  C., and an amorphous polybutene-1 content of less than 30% by weight as determined by extraction of the amorphous polybutene-1 with methyl isobutyl ketone at 65 DEG  C. for 2 hours and (B) 95-60% by weight of a solvent which is a saturated or unsaturated hydrocarbon, a halogenated hydrocarbon, or an aromatic hydrocarbon having a boiling point below 140 DEG  C. or a mixture of any two or more of these. The solution is prepared by heating the components to from 90-120 DEG C. until a substantially clear solution is obtained and cooling the solution to from 40-90 DEG  C.  Solvents exemplified are propylene dichloride, toluene, xylene, naphtha, heptane, hexane, hexene-1, tetrachloroethylene, trichloroethylene, and petroleum fractions. The solution may be used for forming films, fibres and coatings, and for impregnating paper.
Patent GB-728891-A (GB)
Title: Improvements in and relating to electric contact making devices
Inventor: ROMMEL FREDERICK EMIL
IPC: H01H50/58
Filed: 1949-12-08
Abstract: 728,891. Electric selectors. TELEPHONE MANUFACTURING CO., Ltd. Nov. 28, 1950 [Dec. 8, 1949], No. 31544/49. Class 40 (4). [Also in Group XXXVII] In a contact spring set for a selector, the fixed contacts are clamped in position before the insertion into place of the moving contacts and the spacing of the moving contacts is determined by supporting them in slots or the like in an operating member 29. In the form shown there are five sets of contacts side by side and the fixed contact springs 25 are first clamped between insulating spacers 27. As shown in Fig. 3, a group of fixed contact springs 25 may be stamped from one sheet of metal and each spring may be forked. After clamping the fixed contacts the moving contacts 26 are inserted in slots in the spacers 27 and then retained in position by inserting the slidable operating members 29 in their bearings, the forked ends 26b engaging the edge of the members and resting in slots 29a in the members. The forked ends 25 of the fixed contacts also extend on either side of the members 29. The set of contacts to be operated is selected by energizing one of five magnets 11, the armature 15 of which moves a lug 16a beneath a projection 22 on the armature 19 of the master magnet 18. Energization of the magnet 18 then operates the set. In a modification, the movable contacts are wires, the ends of which enter holes in the members 29, Fig. (not shown). Specification 728,950, [Group XXII], is referred to.
Patent GB-1208936-A (GB)
Title: Fluorescent lamp current regulating circuit
Inventor: PAGET FREDERIC W
IPC: H05B41/392
Filed: 1968-07-03
Abstract: 1,208,936. Automatic current control. SYLVANIA ELECTRIC PRODUCTS Inc. July 3, 1968 [July 3, 1967], No.31730/68. Heading G3R. [Also in Division H2] A fluorescent lamp regulating arrangement comprises an electric circuit for applying periodic ionizing pulses to the lamp thereby to support an arc discharge in the lamp, the circuit being responsive to a control voltage dependent on the lamp current as sensed by a transformer. As shown, series connected fluorescent lamps L1, L are supplied from A.C. source terminals A, C by way of the primary winding T3 of a current sensing transformer and an auto-transformer T1, T2 associated with a pulse-producing circuit constituted by a triac V1, a diac D1 and capacitors C1, C2, C3. The secondary winding T4 of the sensing transformer is connected over a resistor R1 to the input terminals A, C to produce a reference flux in the transformer core, and the interaction of this flux with the current-dependent flux due to winding T3 produces a control voltage in a tertiary winding T5; this voltage is applied to the pulse-producing circuit in series with capacitor C2 thereby to control its rate of charging and to cause a phase shift of the ionizing pulse in the direction required to correct a deviation of lamp current away from normal. Thus, if the lamp current increases the arrangement is such that the control voltage induced in tertiary T5 decreases, the voltage available to charge capacitor C2 increases and capacitor C2 reaches the breakdown voltage of diac D1 earlier thereby triggering triac V1 and causing the primary storage capacitor C1 to discharge earlier in the cycle, whereby the phase of the ionizing pulse is advanced to limit conduction in the lamps and the pulse amplitude is reduced because capacitor C1 has charged to a lower voltage, further limiting ionization and lamp current. The sensing transformer may be associated with a photo-resistor or thermistor responsive to lamp current, or with alow pass filter to attenuate non-linear distortions in the lamp current sensed by the transformer.
Patent GB-1199847-A (GB)
Title: Improvements in or relating to Actuators for Gear Boxes
Inventor: PAGE WILBUR MILLS
IPC: F15B11/12
Filed: 1968-07-03
Abstract: 1,199,847. Change-speed control. CLAYTON DEWANDRE CO. Ltd. 3 July, 1969 [3 July, 1968], No. 31778/68. Heading F2D. A four-position compound piston-and-cylinder type pneumatic servomotor for use in the gear shift mechanism of Specification 1,199,846 comprises an outer cylinder 4 having three ports 1, 2, 3 and in which an inner cylinder 5, closed at one end, is reciprocably mounted, the inner cylinder 5 in turn containing a reciprocably mounted piston 8 the piston-rod 10 of which is attached at 17 to a gear selector in an associated gear-box (not shown). In operation, the third port 3 is constantly supplied with fluid pressure such that for selection of 1st gear the ports 1 and 2 are cut off from the fluid pressure supply whereby the piston 8 is initially moved, by pressure at port 2 passing through slots 18 of the inner cylinder 5, against a stop 19 on the inner cylinder 5, after which the piston 8 and cylinder 5 are jointly moved by the port 3 pressure against the end 20 of the outer cylinder 4 at which position 1st gear is selected. Selection of 2nd is effected by connecting port 2 to the fluid pressure supply whereby pressure enters a groove 6, formed in the exterior or interior of the inner or outer cylinders 5, 4, respectively, and passes through a port 24 into a chamber 25 to move piston 8 against a circlip 26 in the inner cylinder 5. Selection of 3rd is effected by additionally connecting port 1 to pressure, whereby the cylinder 5 and piston 8 are jointly moved against the opposite end of the outer cylinder 4 as illustrated in the drawing, the fluid from the second port 2 maintaining the piston 8 against the circlip 26. Selection of 4th is effected by cutting off the fluid supply from port 2 whilst maintaining the supply to port 1 whereby the fluid supply from port 3 moves the piston 8 against the stop 19 in the inner cylinders 5. In use with the six forward speeds and reverse of the shift mechanism of Specification 1,199,846, one such servomotor as above is arranged to position the gear selector in any one of four positions, i.e. between 1st and 2nd, 3rd and 4th, 5th and 6th or opposite the reverse gear, and a second servomotor is arranged to move the gear selector to engage any one of each pair of gears on the single reverse gear.
Patent GB-650208-A (GB)
Title: A process for the polymerisation of organo-polysiloxanes
IPC: C08G77/08
Filed: 1948-12-08
Abstract: Liquid hydrocarbon-substituted polysiloxanes, containing, e.g., less than ten silicon atoms per molecule, are further polymerized by contact with an acid-activated bleaching earth, as catalyst, at 50 DEG  to 300 DEG  C.  The activated earths, such as Florida earth, Kambara earth, bentonite, "Retrol" (Registered Trade Mark), and other hydrous aluminium silicates may be impregnated with as much or as little as desired of a mineral acid, e.g. sulphuric and phosphoric acids.  In one embodiment, the powdered catalyst in amount, e.g., of 0.2 to 5.0 parts by weight, is dispersed in the siloxane, e.g. 100 parts, with or without diluents such as toluene or dioxane, and the resultant mixture warmed with stirring until the viscosity thereof has attained a pre-determined value, during which time steam may be passed through the mixture.  The mixture is then cooled and the catalyst removed by filtration or other mechanical means.  The mixture may be diluted with an inert diluent prior to filtration.  In examples: (1) a mixture of dimethyl polysiloxanes was passed through a bed of an acid-activated clay, while maintaining the bed at 100 DEG C.; (3-5) the hydrolysis product of phenylethyldichlorosilane containing minor amounts of phenyl and ethyl chlorosilanes was mixed with the catalyst and the mixture heated to 200 DEG  C. while passing in steam, the catalyst (in 4 and 5) being removed by filtration after dilution of the mixture with toluene.
Patent GB-318123-A (GB)
Abstract: 318,123. Barnabe, L. V. May 25, 1928. Vaporizing by heat; vapours, delivering.- Vaporizing apparatus of the continuous tube heater type, particularly for vaporizing liquid disinfectants, comprises a reservoir A for the liquid, a pump B for producing an initial air pressure therein, a tube F controlled by a cock F<1> leading from the reservoir A to vaporizing coils G, and an auxiliary preheating coil M independently connected to the lower part of the reservoir A for the purpose of maintaining the requisite pressure therein. Both the vaporizing coils G and the auxiliary coil M are enclosed in a casing L, and are heated by the same liquid fuel burner J, which is supplied with fuel from a reservoir K. The liquid vaporized in the coils G passes through a wire gauze filter mounted inside a collar S', into a discharge pipe H having an unrestricted outlet. A tube I leading from the reservoir A to the discharge pipe H is provided with a cock I<x>, and acts as a bye-pass. A pressure gauge C, a safety valve D, and a liquid gauge E are also fitted to the reservoir A. Specification 7327/15 is referred to.
Patent GB-192234-A (GB)
Title: Improvements in and connected with oakum
IPC: B63B5/06
Filed: 1921-11-28
Abstract: 192,234. Nicol, Q. A. Nov. 28, 1921. Joint-making packing.-Oakum is twisted in combination with a filament, thread, or cord whereby it is strengthened. The thread &c. may be employed as a core, the oakum being twisted around it, or it may be twisted with the oakum and it may be wound around the oakum as a helix of considerable pitch. At the ends of a length of twisted oakum, the ends of the thread &c. may be bound or knotted around the twisted product. The oakum may be of jute and the threads &c. used may be of tarred or untarred jute, hemp, cotton, flax, manilla or sisal or mixtures thereof. The oakum product may be used in caulking ships' decks &c.
Patent GB-1216299-A (GB)
Title: Carbon brush assembly for use with a commutator of a dynamo-electric machine
IPC: H01R39/41
Filed: 1969-06-24
Abstract: 1,216,299. Brush-holders for dynamo-electric machines. PHILIPS GLOEILAMPENFABRIEKEN. 24 June, 1969 [27 June, 1968], No. 31846/69. Heading H2A. A brush-holder 1 for a dynamo-electric machine is formed in one piece from insulating material and has a main bore 2 for the carbon brush 4, and an auxiliary bore 5 extending parallel to the main bore and open at the commutator end of the brush-holder, electrical connection to the brush being effected through a member having a spring-abutment portion 10, a portion 7 in the auxiliary bore and a portion 9 accessible outside the brush-holder. The bores 2 and 5 are in communication with each other at 11. Before assembly, the portion 9 is not bent relative to the portion 7. This enables the brush, together with the spring and member 10, 7, 9, to be inserted in the holder from the lower end until the portion 9 extends out of upper end. This portion is then bent over or twisted to lock member 10, 7, 9 to the holder. The lead 12 is held in a clamp 13 on the brush-holder. In another embodiment (Fig. 5, not shown), the portion 7 extends along the auxiliary bore towards the commutator 6 and the portion 9 projects laterally from the holder near the commutator end.
Patent GB-605965-A (GB)
Title: Improved head for rubbing contactor trolley pole
IPC: B60L5/08
Filed: 1945-11-26
Abstract: 605,965. Sliding collectors. ACIERIES DE GENNEVILLIERS. Nov. 26, 1945, No. 31894. Convention date, March 17, 1944. [Class 104 (iii)] A sliding collector 1 for an overhead conductor wire 3 is carried by an arm 4 normally vertical and coupled by a normally horizontal member 5 to an inclined axle 6 pivoting in the head 7 of the trolly pole 8. The collector 1 swivels on the arm 4 and the wire 3 normally rests on the bottom of the groove 2.
Patent GB-618904-A (GB)
Title: Improvements in or relating to hinged joints, particularly those for artificial limbs
IPC: A61F2/58
Filed: 1946-10-28
Abstract: 618,904. Knee and elbow joints. PARKWOOD (ARTIFICIAL COMPONENTS) Ltd., and GODDARD, H. F. Oct. 28, 1946, Nos. 31905/46 and 18330/47. [Class 81 (ii)] [Also in Group XXV] In angularly adjustable joints wherein a sliding sp ing-p.essed bolt on one member engages notches or teeth on the other member to hold the joint in adjusted position and in which the joint can be released by a pull on a control member whereby the bolt is withdrawn and can be held in retracted position by a detent and subsequently restored to locking position by a further pull on the control member, the arrangement is such that the detent directly engages the bolt and the control member carries the @unting means for releasing the detent. As applied to a joint for elbows or knees of artificial limbs a tooth 19 on a pivoted control lever 21, harness-operated, engages a pin 18 on a bolt 9. If the bolt is sufficiently withdrawn a detent 29, actuated by a spring 32, can engage a notch 31 on the bolt. A slot 36 permits longitudinal movement of the detent on its pivot 22, under the pull of the bolt springs 15 when traction on the harness ceases, and a pin 35 on the detent is thereby brought into range of a tooth 34 on the control lever, subsequent actuation of which throws out the detent to free the bolt. A modified construction is described wherein the bolt slides in a direction parallel to the joint pivot axis, the mechanism being carried in a rotatable hemispherical cup 49, Fig. 6, on an upper arm stump fitting, an additional harness cord 78 being provided for lifting the forearm.
Patent GB-212222-A (GB)
Title: Improvements in ignition plugs
IPC: F23Q7/00
Filed: 1923-12-20
Abstract: 212,222. Bosch Akt.-Ges., B. March 2, 1923, [Convention date]. Sparking-plugs; incandescent electric igniters. -The gland nut f is revolubly but non-removably connected to the plug body a. It may be in one or more parts. The seatings k, i may be conical or one part may be knife-edged. In the construction shown, the filament c is connected to the casing a and central conductor d, and is wound around insulation b.
Patent GB-631648-A (GB)
Title: Improvements in conveying arrangements
IPC: A21B5/02
Filed: 1947-12-03
Abstract: 631,648. Conveyers. VICARS, Ltd., T. & T., and NAYLOR, J. F. Dec. 3, 1947, No. 31910. [Class 78 (i)] A stripping device for removing biscuits or like flat articles from the surface of a drum or conveyer belt, consists of a plurality of spaced fingers the outer ends of which are in contact with or closely adjacent to the surface of a drum or lapped-over-end of an endless conveyer belt, web or chain, the outer ends of these fingers being widened or flattened so as to occupy substantially completely the whole width of the surface to be stripped. The fingers comprise spring steel bars 1 which are clamped in a holder 2 by means of a clamping plate 3 cranked round and welded to a pivot bar 4 and extend downwardly so that the free ends 5 are held elastically in contact with the surface of the conveying band 6 which carries the articles 7 which slide up the fingers and are transferred on to the conveyer or chute 8 any residue dropping between the bars. The outer ends 9 of the bars are each tapered and flattened to conform to the width of the surface to be stripped. In a modification for woven belts the fingers are welded to short cross bars and the flattened end is common to two or more fingers.
Patent GB-1338461-A (GB)
Title: Diode delay line
IPC: H01L21/822
Filed: 1971-07-07
Abstract: 1338461 Delay lines, transistor amplifiers MOTOROLA Inc 7 July 1971 [5 Aug 1970] 31912/71 Headings H3U and H3T A delay line comprises a ladder network having series resistance 68, 69, 70, 71 and shunt capacity diodes, e.g. Zener diodes 80, 81, 82, 83. The delay is used in a colour TV receiver, Fig. 1 (not shown) to delay the video signal, the diodes being normally reverse biased in the range in which they function as capacitors, but being forward biased by large negative noise peaks to act as a limiter. The separate diodes may be replaced by the base-emitter diodes of a multiemitter transistor, Fig. 3 (not shown).
Patent GB-335405-A (GB)
Title: Improvements in suppositories for the treatment of hemorrhoids
IPC: A61F5/00
Filed: 1929-10-21
Abstract: 335,405. Schaaf, W. L. Oct. 21, 1929. Drawings to Specification. Ointments.-An ointment used as a charge for a porous suppository consists of zinc oxide, bismuth subgallate, tannic acid, aluminium acetate, resorcinol, atropine, ephedrin, white beeswax and cacao butter.
Patent GB-1347786-A (GB)
Title: Mould holder with thermostatically controlled mould
IPC: C03B9/38
Filed: 1971-07-07
Abstract: 1347786 Glass mould holder EMHART CORP 7 July 1971 [8 July 1970] 31930/71 Heading C1M A glassware forming machine includes a mould holder 14 movable towards and away from a moulding position located adjacent a source of cooling air 34, 36, 38, which holder supports at least one mould 10 the mould having grooves 40 for directing the cooling air upwardly between the holder 14 and the mould 10 when in the moulding position, at least one temperature sensing means such as a thermocouple 42 in the mould, lead-out wires 46 extending to a mould mounted plug part 60, a complementary plug part 80 carried by the holder for receiving the mould mounted plug part 60, the plug parts serving to locate the mould in the mould holder and to provide electrical connection between the lead-out wires 46 and lead-out wires 104 in the holder. The leadout wires 46 comprise two conductors each connected to the upper end of one of a pair of upright posts 66 in the plug part 60 the lower ends of the posts extending into a recess formed by a flange 70 depending from the plug part 60 and the mould base. The plug part 80 has an upwardly projecting portion which co-operates with the holder 14 to provide a recess for the flange 70 and a pair of upwardly biased contact pins 88 which contact the associated posts 66. The lead-out wires are connected to a control device 50, which as a result of a signal received from the thermocouple operates a valve 38 for supplying cooling air to the mould.
Patent GB-448554-A (GB)
Title: Improvements relating to internal combustion engines of the liquid fuel injection type
IPC: F02M69/00
Filed: 1934-11-07
Abstract: 448,554. Oil engines. POHJANPALO, E., 11B, Puistokatu, Helsinki, Finland. Nov. 7, 1934, No. 31977. [Class 7 (iii)] Heavy oil (naphtha) is projected from a nozzle S on to wings or baffles M which extend from a ring R into an ignition or combustion chamber K. Air is forced with a whirling motion through openings A between the wings and the mixture is ignited by sparking plugs P. A light fuel is used for starting.