baber/WOPTO huggingface dataset:
Patent GB-1310820-A (GB)
Title: Circuit suitable to control ringing signals in an automatic telephon exchange
IPC: H04M19/02
Filed: 1970-03-11
Abstract: 1310820 Automatic exchange equipment TELEFONAKTIEBOLAGET L M ERICSSON 18 Sept 1970 [23 Sept 1969] 44696/70 Heading H4K A circuit for providing and controlling ringing signals in a telephone exchange includes a first switch which shunts a ringing generator and serially connected second switch for maintaining a D.C. potential at the output of the circuit. The operation of the switches is controlled so that the switches operate alternatively in response to an interruption signal and are simultaneously switched one to a conducting state and the other to a non-conducting state. The first switch comprises thyristor T3 controlled by oscillator LT and the second switch comprises oppositely connected parallel thyristors T1, T2 controlled by oscillator VT. The oscillators are enabled by bi-stable circuit FF which is controlled by the interruption signal from square wave pulse unit P through AND gates OS1, OS2. For ringing, a signal on F2 enables oscillator VT to make thyristors T1 and T2 conduct alternately. When pulse unit P changes its state AND gate OS1 is enabled by each pulse UFS and causes oscillator LT to trigger thyristor T3 into conduction and thus short circuit the ringing generator RG. When the change from interval to ringing occurs T3 will stay conducting and a short circuit could occur if thyristor T1 were made conductive. This is prevented by circuit AK which provides pulses UFS only when the voltage RG+UB is negative going. Thus bi-stable FF changes state only when the voltage across the parallel thyristor circuit is such that T2 can conduct when triggered. Conduction of T2 extinguishes T3 and the ultimate conduction of T1 and T2 occurs without risk of a short circuit. When changing from ringing to interval both thyristors T1, T2 will be currentless when the pulse UFS is received so changeover can occur.
Patent GB-452807-A (GB)
Title: Improvements in and relating to lighting systems
IPC: E04D13/03
Filed: 1935-04-16
Abstract: 452,807. Daylight reflectors; windowblinds. NOBBS, P. E., 38, Belvedere Road, Westmount, Quebec, Canada. April 16, 1935, No. 11698. [Class 20 (iii)] A studio, exhibition room, or the like is provided with a skylight aperture 6 facing the northern sky and an elevated structure 9a carrying a reflector 7, the arrangement being such that the image of the whole skylight aperture is reflected towards one area of the room while a part only of the skylight affords direct illumination of another area. In the construction shown, the pictures 8 on the wall C are illuminated by the reflected light while the pictures 8a on the opposite wall D are directly illuminated by the portion B of the skylight. Glazing elements X, X<1> may be arranged, as shown, in the paths of the two I light beams. The correct apportionment of the whole area A and the area of the portion B of the skylight is determined by such factors as (1) the light absorption coefficients of the elements 7, X, X<1>, and (2) the luminosity of the different parts of the sky from which the direct and reflected beams are derived. The quantity of light entering the studio may be varied without altering the ratio of the areas of direct and reflected light by means of blinds 9, 10, Fig. 3. In another arrangement, the blinds 9, 10, Fig. 6, are mounted on rollers 11, 12, and are attached by cords 13, 16 respectively to the winding drums 14, 17 of a shaft 15. The winding drums are of different diameters and are so chosen that the blinds will function to vary the areas A, B without altering their ratio.
Patent GB-1346868-A (GB)
Title: Torque transmission devices
IPC: F16C3/03
Filed: 1972-03-14
Abstract: 1346868 Shaft couplings GLAENZER SPICER SA 14 March 1972 [16 April 1971] 11781/72 Heading F2U The usual plunge-accommodating splined slip joint at one end of a telescopic drive or propeller shaft 3, between two universal joints, is replaced by a torque-transmitting steel, copper alloy, plastics or other resilient corrugated bellows 10, fixed, as by welding, at its ends, to a universal joint yoke 1 and tubular shaft 3 respectively, and centred and guided by direct engagement on or in a sleeve, e.g. 2, co-operating with segmental or solid slide rings 4, 6, of bronze or plastics, which may have seals. As shown, the sleeve 2 carries one ring 6, bearing inside the shaft 3, the other ring 4 being carried in a sleeve 5 welded to the shaft 3 with one end of the bellows 10, and bearing on the sleeve 2, which is welded to the joint yoke 1 with the other end of the bellows. A seal disc 9 encloses the sliding system. In Fig. 3, not shown, both slide rings 4, 6 are mounted on a sleeve (11) carried inside the shaft 3 between the shaft 3 and sleeve 2. In Fig. 4, not shown, such a sleeve projects beyond the end of the shaft 3 and supports the bellows internally. In Fig. 5, not shown, the shaft 3 encloses the bellows and is attached to it at one end together with a collar (14) carrying an internal slide ring 4, the other end of the bellows being attached to the enlarged end of a stub-shaft (13) extending from the yoke 1 and ending in an enlargement carrying externally the other slide ring 6 bearing in the shaft 3.
Patent GB-135770-A (GB)
Title: Improvements in Packing for Stuffing Boxes or the like.
Inventor: CRANE JOHN T
IPC: F16J15/20
Filed: 1919-05-10
Abstract: 135,770. Crane, J. T. May 10, 1919. Packing, metallic; packing, compound metallic and non-metallic.-Sheets 5 of metal foil are passed through a bath of oil and plumbago, or other lubricant, and are then crinkled together, as shown at 6, to form a core, round which a metallic or non-metallic covering is braided. Preferably, bundles of fine copper wire are employed for the braiding.
Patent GB-197520-A (GB)
Title: Improvements in match boxes
IPC: A24F27/00
Filed: 1922-04-27
Abstract: 197,520. Dunhill, A. April 27, 1922. Matches, boxes specially designed for.-The drawer of a drawer- and-shell match box is provided with a return flap e upon which is provided the striking surface d. The movement of the drawer within the shell is limited in either direction by a tape which is secured to both the drawer and shell.
Patent GB-1018617-A (GB)
Title: Improvements in or relating to magnetic logic "exclusive or" gates
Inventor: TORLESSE ARTHUR TIMOTHY
IPC: H03K17/82
Filed: 1961-03-30
Abstract: 1,018,617. Circuits employing bi-stable magnetic elements. PLESSEY CO. Ltd. June 29, 1962 [March 30, 1961], No. 11808/61. Heading H3B. An " exclusive OR " device -comprises two two-aperture input cores A 1  and A 2  and a three aperture output core B, the output winding 9 of cores A 1  and A 2  being connected in series opposition and with the input winding 7B of core B which passes through two apertures 4, 4a of core B in opposite directions. An output pulse is transferred to core B on clearing cores A 1  and A 2  only if cores A 1  and A 2  were in different " 0 " and " primed 1 " states. An output pulse in either direction is stated to switch core B to the " primed 1 " state. The turns ratio between the output windings on A 1  and A 2  and the input windings on core B is preferably 3: 1. The " 0," " 1 " and " primed 1 " states of the cores are also described in Specification 1,018,614.
Patent GB-552058-A (GB)
Title: Improvements in the manufacture of cellulose derivative articles and materials
IPC: C08J7/054
Filed: 1941-09-16
Abstract: 552,058. Preventing condensation on cellulose derivatives ; wetting-agents. CELLULOID CORPORATION. Sept. 16, 1941, No. 11832. Convention date, Oct. 14, 1940. [Classes 2 (ii) and 15 (ii)] [Also in Group X] Transparent materials having surfaces of hydrophobe derivatives of cellulose, particularly sheet material for eye-pieces of goggles, gas masks &c. are rendered non-fogging by treatment with a solution of a wetting-agent in a volatile organic liquid having a gelatinizing action on the cellulose derivative and drying by evaporation. Heavy sheet materials are preferably treated while they still retain some residual solvent used in their manufacture and thin films and foils in the fully seasoned condition. Suitable wetting-agents are fatty, or secondary, alcohol sulphates, sulphated fatty acid esters, sulphonated esters of alcohols and dibasic acids, such as the dioctyl ester of sodium sulpho-succinate, and alkyl aryl sulphonates, particularly the salts known as " Santomerse D," and the solvents may be those used in making the cellulose derivatives. Acetone is preferably used as the solvent in the case of thick sheet material. Cellulose esters, mixed esters or ethers and celluloid may be treated. In one example, cellulose acetate film, 0.01 inch thick, is cast from a solution containing 100 parts by weight of cellulose acetate, 30 parts of a mixture of equal parts of acetyl phthalyl ethyl glycollate and triphenyl phosphate, and 400 parts acetone and a solution of one part of dioctyl ester of sodium sulpho-succinate is beaded on to the roll. In a second example, cellulose acetate sheets, .1 inch thick, are cut from a block composed of 100 parts of cellulose acetate, 20 parts of diethyl phthalate and 10 parts of triphenyl phosphate with about 10 to 20 per cent. of a mixture of 75 per cent. ethyl methyl ketone and 25 per cent. acetone. The sheets are subjected to a preliminary seasoning between cardboard or falulah pads in blowers for 24 hours at 80F., removed, wiped, dipped for 20 seconds in a 1 to 2 per cent. solution of dioctyl ester of sodium sulpho-succinate in acetone, dried in air for 12 hours, further seasoned at 90F. for 24 hours, 120F. for 48 hours and 160F. for 125 hours, and finally polished in a press. In a third example, celluloid film, 0.005 inch thick, containing 25 parts of camphor to 100 parts of cellulose nitrate with less than 5 per cent. of residual volatile solvent is coated with a solution of 1 per cent. " Santomerse D " in a solvent or solvent mixture, e.g. acetone 25 per cent., ethyl acetate 25 per cent. and ethyl alcohol 50 per cent., adapted to produce a slight gelatinization of the surface.
Patent GB-1368518-A (GB)
Title: Artificial kidney machines
IPC: A61M1/36
Filed: 1972-03-14
Abstract: 1368518 Dialysis DIALYSIS SYSTEMS Ltd 12 Feb 1973 [14 March 1972] 11898/72 Heading B1X A method of washing a blood dialyser of an artificial kidney machine after a blood dialysis treatment comprises connecting a blood compartment of the dialyser to a dialysate supply system of the machine and using liquid from the supply system to wash both the blood compartment and a dialysate compartment of the dialyser. The dialysate may be replaced by a sterilising solution which can be introduced through the same circuit.
Patent GB-117858-A (GB)
Title: Improvements in or relating to Rotary Pumps.
Inventor: HERBERT ALFRED
IPC: F04C2/18
Filed: 1917-08-20
Abstract: 117,858. Herbert, Sir A., and Ridley, J. Aug. 20, 1917. Movable-abutment type; compensating for irregularity of flow; driving pumps; packing drums &c.-A Roots'-blower pump comprising two meshing spur-wheels A, B driven by a third spurwheel C arranged in line with the others in a shaped casing having an inlet J and an outlet K is provided with a conduit L connecting the delivery side I of the wheel C with the pump outlet K. To reduce leakage through the bearing E of the spindle D of the driving-wheel C, an annular recess M is formed in the spindle so as to connect with grooves N in the casing and the suction side of the wheel C. Oil from a reservoir O is sucked into the pump along the spindle D. A spring-loaded relief valve P controls a by-pass from the outlet to the inlet side of the pump.
Patent GB-796027-A (GB)
Title: Improvements in jet propulsion nozzles
Inventor: BAUGER LOUIS JULES
IPC: F02K1/30
Filed: 1956-04-19
Abstract: 796,027. Generating combustion products under pressure. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. April 19, 1956 [April 22, 1955], No. 11994/56. Addition to 750,616, [Group XXVI) Class 51 (1). [Also in Group XXVI] A variable area jet propulsion nozzle as claimed in the parent Specification in which the jet formed by the nozzle is controlled by an auxiliary fluid injected into the main stream in a direction substantially perpendicular to, or inclined upstream to, the direction of the main flow and in which the momentum of the auxiliary fluid is increased by heating by internal combustion, has the means for heating the auxiliary fluid arranged in an annular manifold extending around the propulsion nozzle. The rear portion, Fig. 1, of a jet propulsion nozzle has an annular manifold 2 arranged around its outlet end which receives air from the compressor of the jet propulsion engine or any other source of suitable pressure through one or more piping systems 3. The manifold 2 discharges through a nozzle 4, in the form of a slot, into the main jet flow F so as to form an aerodynamic screen which reduces the outlet cross-section of the nozzle. A flame tube 5 with fuel injectors 6 is located in the manifold 2. Primary air from the pipes 3 passes into the tube 5 through holes 7. The remainder passes between the tube 5 and the wall of the manifold 2 where it is divided. Part of this air flow through the holes 8 to act as secondary air and the remainder is mixed with the combustion gases leaving the flame tube 5 through the slot 9. Igniters 10 are provided adjacent one or more of the injectors 6. The effective area of the nozzle may be varied by varying the flow in the pipes 3 and to the fuel injectors 6. The nozzle is specially suitable for use with a gas turbine jet propulsion engine having reheat in the jet pipe. In a modification, the partitions 11 in the flame tube 5, between the fuel injectors 6 are dispensed with and the pipes 3 are replaced by two groups of pipes arranged on diametrically opposite sides of the propulsion nozzle. The nozzle is cooled by an air stream F3 which passes through channels 14 formed in the opposite walls of the nozzle 4. Specification 745,630 and 759,659, [both in Group XXVI], are referred to.
Patent GB-292739-A (GB)
Title: Improvements in or relating to an electrodynamic magnet system for microphones, loud speakers or similar devices
IPC: H04R9/04
Filed: 1927-05-05
Abstract: 292,739. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). May 5, 1927. Magnetic instruments. -Relates to an electrodynamic magnet system for microphones, loudspeakers, &c. of the kind having an annular coil movably arranged in an annular magnetic field and consists in centring the coil by one or more annular or circular layers of felt which are secured to the poles or to parts of the magnet system which are immovably connected to the poles. In the construction shown, a coil 4, wound on a cardboard tube secured to a cone 5, is located in the annular gap between the poles 2, 3 of a permanent or electromagnet. The coil is centred by a felt layer 6 secured to the pole 2 and by an annular felt layer 7 secured to the pole 3 by an annular copper clamping piece 8 and screws 9. According to the Provisional Specification, a textile fabric such as velvet or flannel may be employed instead of felt.
Patent GB-1384952-A (GB)
Title: Device for trying out interior and or structural design schemes
IPC: G09B25/04
Filed: 1972-03-15
Abstract: 1384952 Models O ZELMANOWITS and L A SILVER 14 March 1973 [15 March 1972] 12019/72 Heading G5G An arrangement for modelling interior and/or structural design schemes comprises at least two screens for representing walls to a reduced scale, each screen including slots parallel to one edge formed with three or more coplanar flaps. As shown, such a screen comprises four plates 1, 2, 3, 4 which are connected together by hinges to define slots 7 and which are each provided with three slots 6, the two edges of the screen parallel to the slots being formed with flaps 5. Thus one screen can be joined to another in one plane by interleaving of the flaps 5 (Figs. 9 to 11, not shown), or can be joined transversely by inserting the flaps of one into a slot of the other. The screens may be assembled on a flat surface to simulate the walls of a room and may be covered with material such as coloured paper (Fig. 17, not shown). The arrangement may also include items of simulated furniture formed by assembling flanged and slotted cards (Figs. 4 to 8 and 13 to 16, not shown).
Patent GB-414844-A (GB)
Title: Improvements in and connected with printers' chases
IPC: B41D1/00
Filed: 1933-04-26
Abstract: 414,844. Printers' composing- appliances; embossing-machines. CRABTREE, L., 6, North Park Avenue, Roundhay, Leeds. April 26, 1933, No. 12175. [Classes 100 (i) and 100 (iii).] Chases; cutting-apparatus.-A stereotyping- chase is provided with means for trimming the edges of the matrix whilst it is being embossed. Cutting-strips 3 are fitted into two adjacent sides of the chase, and also into the locking- furniture 5, which is located on the other two sides, so as to form a rectangular cutting-frame. A rectangular sheet-metal frame 6 is provided above the cutting-frame, so as to overlap the edges of the matrix-sheet 7, and is mounted on a framework 8, which fits around the chase. Packing 9 is placed over the matrix-sheet, which is then embossed in a matrix mangle or press, the edges of the matrix being cut simultaneously. The frame 6 and the framework 8 may be hinged to the moulding-machine. The cutting-frame may be formed by hard steel wires secured to the underside of the frame 6.
Patent GB-1376679-A (GB)
Title: Systems for recording digital data
IPC: G11B20/14
Filed: 1972-03-16
Abstract: 1376679 Recording digital data INTERNATIONAL BUSINESS MACHINES CORP 16 March 1972 [23 April 1971] 12201/72 Heading G4C A computer is programmed to record digital data on a recording medium, e.g. magnetic tape. Data is recorded in PE or NRZI in blocks separated by interblock gaps (IBG's). A preamble of 40 o's is followed by a marker of 40 1's, the data, a marker, a resync burst of 40 1's, another marker and a postamble of 40 O's, in that order. A resync burst (surrounded by markers), may be provided in the middle of the data.  A microprogrammed unit (32, Fig. 2, not shown), e.g. an ROS, magnetic core or tape, holds programs for inserting the data and other pulses in the requisite order on the tape, tallying the time taken, and checking. The data is received from a CPU. A branch register provides switching between the various programs.
Patent GB-289442-A (GB)
Title: Improvements relating to advertising on cigarettes
IPC: G09F23/00
Filed: 1928-04-26
Abstract: 289,442. Courten, O. de, and Schaub, O. April 27, 1927, [Convention date]. Cigarettes. -An advertisement is applied to a tab a connected to or integral with the cigarette casing b. A line of perforations permits of easy separation. The tab may extend laterally from or be rolled around the cigarette.
Patent GB-540810-A (GB)
Title: Improvements in and relating to the depolarization of primary cell batteries mounted in torch cases
IPC: H01M10/46
Filed: 1940-07-27
Abstract: 540,810. Electric battery lamps. BECKER, C. A., and SIMMONDS, L. E. July 27, 1940, No. 12223. [Class 39 (ii)] Battery torches using primary cells are provided with external connections on the casing to the poles of the battery so that it may be de-polarized by submitting it to a charging current without removing it from the casing. In the form shown in the Figure, a contact strip 7 in connection with the positive pole of the cell 2 is taken out to a socket fitting 8 mounted on the casing and insulated therefrom. For "charging," the torch is clipped on to a charging board so that a clip connected to one terminal of the charging source engages around the casing and the socket engages a plug on the board connected to the other charging terminal. In a modification, the positive pole of the cell is connected by a lead to a metal band surrounding the middle of the casing and insulated therefrom.
Patent GB-350145-A (GB)
Title: Improvements in and relating to hand lever controls for kep gears for mine cages andthe like
IPC: G05G5/06
Filed: 1930-04-17
Abstract: 350,145. Locking devices for lift cages. DAVIES, E. A., 146, Cathedral Road, Cardiff, and LYNAS, G. R. G., Druidstone, The Common, Pontypridd, Glamorgan. April 17, 1930, No. 12239. [Class 78 (iii).] The handlever for operating mine cage &c. keps is connected to the keps through a disengagable coupling, handlever quadrant and kep-gear adjusting devices being also provided. The handlever 12 is loosely mounted on the shaft 13 and has a spring-bolt 14 engaging a notch in the quadrant 16. A pair of crank arms 17 are keyed to the shaft 13 which operates the keps 10 through the usual gearing 29 so that they are projected to engage the cage 11 or are retracted to free the cage. A hand-grip 25. on the hand-lever operates a sliding rod 20 carrying stops 21 so that as the rod rises the stops are freed from the crank arms 17 and a projection 22 then disengages the spring-bolt 14. The handlever is thus freed and by means of projections 27 thereon rocks the crank arms and disengages the keps. In a modification two hand-grips are used, one operating the crank arm freeing device and the other the quadrant-engaging bolt. In another modification the hand-grip has a projection adapted to engage the hand-lever so that it actuates the lever as well as the releasing devices. The quadrant 16, Fig. 5, may have a slot 43, the notch 47, Fig. 6, being formed in a curved plate 45 with slots 46 and adjustably mountable by bolts 44 on the quadrant. A web 51, Fig. 7, for operating the keps by a link 52 has abutments 49 adapted to engage adjustable screw studs 50 to facilitate the setting of the keps.
Patent GB-860705-A (GB)
Title: Acyl-mercapto-amides and their use in the permanent waving of hair
IPC: A61K8/46
Filed: 1959-04-10
Abstract: The invention comprises compounds of the formula R-CO-S-CH(R1)-CO-NHR2, where R represents a lower alkyl or carboxyalkyl residue, and R1 and R2 each represent a hydrogen atom or a lower alkyl residue, "lower alkyl" meaning an alkyl group of 1 to 4 carbon atoms.  Examples describe the preparation of S - acetyl mercaptoacetamide, S - acetyl - N - methyl-mercaptoacetamide, S-acetyl-mercaptopropionamide and S - succinyl - mercaptoacetamide by reacting the appropriate mercaptoalkylamide with the appropriate acid anhydride or with acetyl chloride.  The novel compounds are useful in processes for the permanent waving of hair (see Group IV (c)).ALSO:A composition suitable for application to hair as a step in the permanent waving thereof comprises, in aqueous solution, a compound of the general formula: R-CO-S-CH(R1)-CO-NHR2, where R represents a lower alkyl or carboxyalkyl residue and R1 and R2 each represent a hydrogen atom or a lower alkyl residue, "lower alkyl" meaning an alkyl group of 1 to 4 carbon atoms, and a basic substance, such as ammonia or an ethanolamine, e.g. triethanolamine.  A process for the so-called permanent waving of hair comprises impregnating the hair, before or after constraining it into a desired configuration, with an aqueous solution of a mercapto compound of the above formula, and thereafter setting the hair in the desired configuration by a method known per se.  In one embodiment, the hair is impregnated with a non-alkaline aqueous solution of the mercapto compound, constrained into a desired configuration, impregnated with an aqueous alkaline solution and set in the desired configuration.