baber/WOPTO huggingface dataset:
Patent GB-160338-A (GB)
Title: Improvements in hair cutting means, applicable also as a safety razor
IPC: B26B21/16
Filed: 1920-01-29
Abstract: 160,338. Macey, T. A. Jan. 29, 1920. Hair-cutting appliances of safety-razor type; razors, safety. A hair-cutting appliance, which may also be used as a safety razor, comprises a hollow holder or handle 1, preferably pear-shaped, having a comb 3 formed on or attached to the open end which has bent-over side extensions forming guides for retaining the blade 5 with its edge close to the comb, or a narrow plate 4 secured across the open end of the holder may be used for this purpose. The handle 1 constitutes a receptacle for receiving the cut hair, and is provided with holes 2 for the admission of air. The blade 5 has an outward projection 6 which extends over the edge of the holder and is secured in position by a slide 9 secured in grooved supports 10 on the holder by a screw 8. The cutting edge of the blade may have a fine serpentine or wavy contour.
Patent GB-988455-A (GB)
Title: Photographic processing and image-transfer apparatus
Inventor: HODGES HOWARD THOMAS
IPC: G03D9/00
Filed: 1963-01-23
Abstract: 988,455. Photographic processing apparatus. EASTMAN KODAK CO. Feb. 5, 1964 [Jan. 23, 1963],No. 2817/63. Heading G2A. An image transfer apparatus includes a container for processing solution,a pressure roller and a squeegee mounted on a pivotal arm which pivots from an inoperative position to an operative position in which the pressure roller is in contact with an idler roller and the squeegee abuts against a supporting part of the container, and a container for image-receiving sheets with means for feeding the sheets between a pair of feed rollers and on to the pressure-roller/idle-roller pair through which the developed matrix sheet is now passing after leaving the processing solution and passing under the squeegee, the feed rollers and pressure roller being a fixed distance apart. In the form shown, the unexposed matrix 16 is introduced by hand into the bath 18 of developer solution. The sensitized portion 14 of matrix 16 ends at an edge 54, the sheet being grasped by the remaining unsensitized portion 15. In this position it overlies an idler roller 28. An arm 24, which can pivot between an operative position (shown in full lines) and an inoperative position (dotted lines) carries a pressure roller 20 and a squeegee 30. Above bath 18 is a holder containing a stack 34 of sheets of image-receiving copy paper, and these are fed forward by a motordriven roller 36 to a pair of feed rollers 40, 42. Roller 40 is coaxial with the pivot of arm 24, and is coupled by a belt 48 to the pressure roller 20. In operation, arm 24 is raised, and sheet 16 introduced into bath 18 until edge 54 is at a predetermined point. As long as arm 24 is raised roller 36 rotates, to feed a copy sheet from stack 34 until its leading edge abuts into the nip of rollers 40,42. Arm 24 is now lowered, which stops roller 36,and brings pressure roller 20 against idle roller 28,with the matrix sheet between them, also bringing squeegee 30 into contact with the sheet. After allowing the appropriate time for development, the end 15 of sheet 16 is grasped, and the matrix pulled out. The surplus liquid is removed by the squeegee, and the movement of the matrix causes roller 20 to rotate. Hence the coupled roller 40 also rotates, thus feeding the image-receiving sheet forward. The distance between rollers 20 and 40 is such that the leading edge of the copy sheet reaches the nip between rollers 20 and 28 simultaneously with the leading edge 54 of the sensitized area 14 of the matrix sheet 16. Thereafter they are pulled together between rollers 20 and 28, and the image transfer thus effected. The same matrix can be used again for further copies.
Patent GB-1373151-A (GB)
Title: Toner powder particularly for use in electrophotographic copying processes
IPC: G03G9/087
Filed: 1972-01-20
Abstract: 1373151 Developer composition OCEVAN DER GRINTEN NV 19 Jan 1973 [20 Jan 1972] 2854/72 Heading G2H [Also in Division C3] In an electro-photographic process for making copies on paper, a two-component developer powder is used, comprising magnetically attractable carrier particles and a toner. The toner, of particle size <40Ám, comprises by 1-10 wt. per cent colouring matter and 99-90% of a mixture of a polyamide resin (P) and a colophony-modified phenol-formaldehyde resin (Q), polyamide (P) being derived from an alkylene diamine and a dimerized unsaturated carboxylic acid, and having m.p. 100-125C., the wt. ratio (P):(Q) being from 3:1 to 1:2 Polyamide (P) is preferably derived from ethylene diamine and dimerized linolic acid. Resin (Q) preferably has acid no 10-30 and m.p. 150-170C. The colouring matter is preferably a mixture of C black and nigrosine. The toner may have particle size 2-40Ám. The carrier particles may be of size 40-200Ám. They may be spherical hollow Fe particles. The developer preferably contains by weight 4-6 parts toner and 96-94 parts carrier, and can be replenished during copying with a 1:1 mix of toner and carrier. The process comprises integrally projecting an image of a static original on a negatively-charged photo-conductive layer, e.g. containing Zn0 coated on a flexible support e.g. paper shaped as a zig zag folded endless belt, continuously moving at # 5m/min, developing the latent charge image with the developer by the magnetic brush method, transferring the powder image to: a receiving paper under the influence of an electric field and fixing the image on the paper e.g. by heating to 125-150C. and cleaning the photoconductive layer after the transfer of the powder image.
Patent GB-880330-A (GB)
Title: Improvements in combine harvesters
IPC: A01F12/40
Filed: 1960-01-26
Abstract: 880,330. Combine-harvesters. WASTERASMASKINER A. B. Jan. 26, 1960 [Jan. 30, 1959], No. 2866/60. Class 6(3). An attachment for the straw-outlet 2 of a combine-harvester 1 comprises a unit which is mounted by vertically-spaced brackets 11, 11<SP>1</SP> at the rear of the harvester frame and which consists of a conveyer 7 and a straw-treating device 8 (e.g. a chaff-cutter or straw-bundler), the conveyer and treating device being arranged on opposite sides of the longitudinal vertical plane through the brackets 11, 11<SP>1</SP> so that they balance one another. The brackets are provided with pivots 12, 12<SP>1</SP>, which define avertical pivotaxis about which the attachment is swingable. Stays 13, 14 support the attachment and a pulley 10 carries the drive from the harvester to the conveyer and moving parts of the treating device. Two alternative attachments are available, one containing a bundling mechanism and the other a chaff-cutter. To reduce the length of the conveyer 7 a shoot 15 is attached to one lower edge of the straw-outlet 2.
Patent GB-1372613-A (GB)
Title: Phase correction system for a synchronous multiplexer for use in pcm systems
IPC: H04L5/24
Filed: 1972-01-21
Abstract: 1372613 Multiplex pulse code signalling SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 21 Jan 1972 [9 Feb 1971] 2940/72 Heading H4L In an arrangement for multiplexing a plurality of low speed P.C.M. signals on to a high speed transmission system, each incoming line is associated with equipment as shown in Fig. 2 which temporarily stores the incoming signals and reads them out at the high transmission rate. Incoming signals #1, Figs. 2 and 3, are fed into an eight-bit store M under the control of pulses V 1  &c. from a writing unit S controlled by clock pulses K1 and ring counter D1. The signals Z 1  to Z 8  from the store are supplied to corresponding gates N 9  to N 16  sequentially controlled by pulses a 1  to a 8  from a counter D2, controlled by the high speed clock pulses K* through a scanner Sc supplying reading pulses d l  (n = 1), d l , n, d l  (n+1), cyclically and by the reading pulse d l  n. The resulting outputs l 1  to l 8  are supplied via an OR gate O 1  to an OR gate O 3  where they are multiplexed bit-by-bit with the other input signals to form the high speed system. The clock signal V 1 , indicated by cross-hatching in Fig. 3, via an inverter I 1  switches a monostable F 1  providing an output γ 5  of duration equal to the period of memories m 1  to m 8 . Pulse a 2  and pulse d l  (n+1) are supplied to a gate N17 whose output γ 8  is inverted and supplied to a bi-stable F 2  providing an output γ 2 . Similarly, gate N 18  receives pulses a 1  and d l (n-1) and provides output γ 9  which is supplied to an OR gate O 2  together with signal γ 8 . The output γ 3  of OR gate O 2  and signals γ 2  and γ 5  are combined at N 19  to produce a signal γ 4  and γ 4  and γ 5  are combined to produce a signal γ 6 . The reading pulse d l  n is supplied to the counter D 2  and is also inverted at I 3  and supplied to a bi-stable B whose output γ 7  is supplied to the other input of counter D 2 . If the falling edge of γ 5  coincides with either pulse of γ 4 , pulses γ 6  and γ 7  are produced and counter D 2  is caused to jump four positions, i.e. half the period of the store M to provide the required phase correction of the storage operation.
Patent GB-1079052-A (GB)
Title: Polymerisation process
Inventor: GRANT IAN JAMES
IPC: C08F110/06
Filed: 1964-01-23
Abstract: Polypropylene containing no crystalline structural units other than units of syndiotactic polypropylene detectable by the most sensitive known methods of analysis, i.e. NMR, is made by effecting the polymerization in the presence of a catalyst system comprising VCl4, a Lewis base and an aluminium dialkyl halide of the formula AlR2X, where R is a C1- 8 alkyl group, and X a halogen atom, and under such conditions that the temperature of the reaction mixture does not exceed - 70 DEG  C. during polymerization.  In the catalyst the mole ratio of Lewis base to VCl4 is between 0.05:1 and 5:1, and the mole ratio of the aluminium dialkyl halide to VCl4 is between 1:1 and 20:1.  The catalyst may be "aged" for 20-30 mins.  Specified Lewis bases are phenol, anisole, phenetole, n-propyl phenyl ether, tetrahydrofurane, tetrahydropyran, aniline, N-substituted aniline, quinoline, pyridine, pyrrole, and diethyl ether.  The Al-compound may be aluminium diethyl chloride or ethylisobutylchloride.
Patent GB-652792-A (GB)
Title: Improvements in and relating to electric switches, particularly electromagnetically operated switches
IPC: H01H3/00
Filed: 1948-02-02
Abstract: 652,792. Electromagnetic switches; switch contacts. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 2,1948, No. 3022. Convention date, June 5, 1943. [Class 38 (v)] A switch arm 16, shown operated by the armature 14 of an electromagnet 10, carries a bridging contact 23 pressed into engagement with the arm by a helical spring 37 and spaced from it by projections 32, 33 on the contact, said projections being arranged transversely thereof. Pressing on the lower edge of contact 23 is a relatively strong blade spring 21 carried by the switch arm. The latter is pivoted at 15 and is biassed to the open circuit position by a spring 17. Fixed contacts, of which only one, 26, is shown, are arranged on either side of the arm 16 -and at an angle to contact 23 so that as the arm moves to the closed circuit position, the inner edges of the contacts engage first, spring 37 is stressed and contact 23 pivots about projection 33 to produce a rolling action over the fixed contacts., As the switch arm reaches its final position, the spring 21 is stressed to apply an increased contact pressure.
Patent GB-265952-A (GB)
Title: Improvements in and relating to protective systems for electric distribution systems
IPC: H02H7/22
Filed: 1927-02-03
Abstract: 265,952. British Thomson-Houston Co., Ltd., (Assignees of Summerhayes H. R.). Feb. 13, 1926, [Convention date]. Cut-out systems. - In protective arrangements for busbars and controlling apparatus arranged in sections, an earthed bus-bar is provided for each section or for each phase of a section, which is arranged to carry any leakage current from the oil switches, isolating switches, current transformers, bus-bar supports &c. in that section, the flow of such leakage current causing the tripping of all the switches connecting that section to other sections. As shown in Fig. 1 applied to a three - phase star - connected system with earthed neutral the section 2 is connected to adjacent sections 1 and 3 by oil switches 4, 6 and isolating switches 5, 7. Section 2 is supplied by a generator 20 through oil switches 24 and isolating switches 25 and supplies feeders 11, 12 through oil switches 14, 17, isolating switches 15, 18 and current transformers 13, 16. The feeders 11, 12 may be first connected to a group feeder bus-bar which is connected in turn to the main bus-bar, which may itself be duplicated. Each phase A, B, C of each of the sections 1, 2, 3 is provided with an earthed bus-bar 31, 32, 33 which as shown for the section 2 is connected to the corresponding oil switch tanks and operating mechanisms, isolating switch bases, current transformer casings and bus-bar insulator supports. When current flows to earth through any of the earthed bus-bars one or more of the relays 45, 47 are operated through current transformers 44, 46 so completing the energizing circuit of a relay 50 which in turn completes the energizing circuits of tripping coils 29 corresponding to all the circuit-breakers to connect the section to other sections so that the affected section is thereupon completely isolated. As shown the tanks of the circuit-breakers 4, 6 interconnecting adjacent sections are not connected to the earthed bus-bars of either section, but in a modified form in which adjacent sections are interconnected by two series connected circuitbreakers the casing of each circuit-breaker is connected to the earthed bus-bar of the adjacent section. Where the neutral of the supply is not earthed, protection on fault is obtained by the operation of relays due to the increased capacity current in the earthed bus-bars resulting from faults to earth.
Patent GB-1515584-A (GB)
Title: Time base corrector
IPC: H04N9/896
Filed: 1976-01-28
Abstract: 1515584 Video recording systems QUANTEL Ltd 10 Jan 1977 [28 Jan 1976] 03207/76 Heading H4F A video time base corrector for correcting for velocity errors in the output of a video tape recorder 12 includes an analog-digital converter 13 feeding a store 18 connected to a digital-analog converter 20. Converter 13 and write-in to store 18 are controlled by a voltage-controlled oscillator 16 triggered by a video sync separator 14. Read-out from store 18 and the converter 20 are controlled by a clock 21 via a variable phase shifter 60. The difference between the control voltages on VCO 16 during successive lines is determined 62, 63, 65 and stored on an appropriate capacitor 72-75, the number of capacitors corresponding to the line capacity of store 18. When a line is read from store 18 the voltage on the corresponding capacitor is passed to an integrator 85 which, over the duration of a line, provides a ramp voltage controlling the shift introduced by phase shifter 60.
Patent GB-830421-A (GB)
Title: Improvements in or relating to double-walled paper or like bags
Inventor: NAYLOR JAMES
IPC: B65D5/06
Filed: 1957-01-30
Abstract: 830,421. Paper bags ; closing bags. DAY & SONS Ltd., J. Oct. 9, 1957 [Jan. 30, 1957], No. 3291/57. Classes 94(1) and 94(2). A double-walled rectangular bag comprises a thin inner wall 1 and a thicker outer wall 2, the inner wall projecting beyond the outer wall 2 to form marginal edges 1a, 1b, 1c and 1d such that when the side 2a is' folded inwardly to cover the mouth of a filled bag, the projecting edges 1a, 1b and 1d are bent around the edges of the corresponding outer wall portions to provide an effective seal when the closure is completed. The closure is completed by folding the sides 2d and 2b over the top of the bag to leave a triangular ear 2c which is finally folded down on top of the bag and attached by a label. Both ends of the bag may be sealed in this manner.
Patent GB-626989-A (GB)
Title: Improvements in or relating to cathode ray tube apparatus
IPC: H04N5/74
Filed: 1947-02-05
Abstract: 626,989. Cathode-ray tubes. BROADWAY, L. F. Feb. 5, 1947, No. 3373. [Class 39 (i)] Cathode-ray tube apparatus comprises a cathode-ray tube, the screen end 1 of which is made as a pressing of glass or other suitable material provided with a peripheral rim 2 which is fused to the remainder of the tube, and a locating element 3 made of rigid material which is preferably an insulator, formed with a central rectangular aperture 5 through which the screen end of the tube is exposed. The locating element has an annular surface 4 formed by means of a die which is accurately complementary to the die employed for forming the outer surface of the screen end of the tube, thus locating the tube axially and laterally in the apparatus.
Patent GB-364881-A (GB)
Title: Improvements in or relating to cored carbons
IPC: H05B31/10
Filed: 1931-02-03
Abstract: 364,881. Arc-lamp electrodes. CONRADTY, E. and CONRADTY, 0., (trading as CONRADTY, C.), 9, Spittlertorgraben, Nuremberg, Germany. Feb. 3, 1931, No. 3494. [Class 39 (i).] Cored carbons for conveying large currents are made with a graphite core arranged within the core proper. Figs. 1, 3 and 5 show different forms ; in each case, the letter A denotes the shell, B the core proper, either baked or soft-sprayed, and C the inner graphite core. The core B may consist of a so-called pure carbon, or it may contain metallic salts. The shell A may consist either of amorphous carbon or of graphite ; in the latter case, the shell and inner core may be integral, as shown in Fig. 5.
Patent GB-557971-A (GB)
Title: Parasiticide composition and method of producing the same
IPC: A01N59/22
Filed: 1942-03-17
Abstract: 557,971. Arsenates and arsenides. CHIPMAN CHEMICAL CO., Inc. March 17, 1942. No. 3517. Convention date, April 14, 1941. [Class 1 (iii)] [Also in Group VI] An insecticidal and like preparation is obtained by reacting a water soluble sulphate of a metal the arsenide and arsenate of which are insoluble, e.g. copper, an alkaline earth hvdroxide, e.g. lime and arsenious oxide or acid with or without arsenic oxide or acid in an amount of water to form a slurry and so that a neutral product is obtained and all the fist-named metal is combined with the arsenic containing acid. Metals other than copper the sulphates of which may be used are aluminium, iron, magnesium, manganese, zinc, nickel, cadmium, chromium, cobalt, tin. Specification 557,972 is referred to.
Patent GB-524641-A (GB)
Title: Improvements in automatic breech closing mechanism for firearms
IPC: F41A3/46
Filed: 1939-02-02
Abstract: 524,641. Automatic guns, SOC. ANON. NAZIONALE COGNE. Feb. 2. 1939, No. 3527. Convention date, Feb. 5, 1938. [Class 92 (ii)] The breech mechanism described in Specification 507,875 is modified in that one of the breechbolt elements 26 is of predominating dimensions and constitutes the breech closing member 27 and also the member 31 for receiving the thrust of the return spring 3, whilst the other element of the breech-bolt consists of a slide 32 mounted on the member 26, and having extensions 33 to control the locking members 9. The slide 32 carries the firing pin 14 which is normally held in advanced position by the spring 15. When the gun is fired, a gas-operated rod 21 actuates the slide 32 by its extension 18 thereby releasing the locking devices by movement of the slide along the element 26. The whole breech bolt then retires as a unit and may be caught by a sear 19.
Patent GB-662457-A (GB)
Title: Improvements in trolleys for electric trolley wire conductor systems
IPC: H01R41/00
Filed: 1949-02-10
Abstract: 662,457. Supplying current to moving conductors. ALLMANNA SVENSKA ELECTRISKA AKTIEBOLAGET, and BAYNES, S..Tan 24, 1950 [Feb. 10, 1949], No. 3653/49. Class 38 (i). [Also in Group XXX] A current - collecting trolley 4 comprises one or more pairs of wheels 5 running on guides 3, and non-yielding steadying members 13 rotatable on eccentrics on shafts 15, which are normally locked against rotation on the trolley webs 7, but releasable so that the members 13 may be adjusted to take up play due to wear between the trolley and guides. The members 13 are preferably wheels or rollers rotatable on the eccentrics, but non-rotatable sliding members may be employed. In a modification, Figs. 3, 4 (not shown), a separate flange is provided on the guide for the members 13.
Patent GB-879560-A (GB)
Title: Improvements in doctors or scrapers for cylinders or drums
Inventor: MACCDONALD IAN JOSEPH
IPC: D21G3/00
Filed: 1960-02-02
Abstract: 879,560. Doctors for paper-making machinery &c. DOMINION ENGINEERING WORKS Ltd. Feb. 2, 1960, No. 3662/60. Class 96. A doctor, e.g. for preventing wood fibres from accumulating on the surface of a steam-heated cylindrical drum 6 rotating vertically in a tank of paper pulp ,&c. has a helically fitted scraper 5, e.g. of circular, triangular, rectangular, or trapezium, or arcuate cross-section, which may be secured by clamping against the endfaces of brackets 10 and 12 which are integral with extensions of bearing blocks of the drum 6. In a modification, the scraper 5 is wound up at one end on a reel so that when the working portion of the blade is worn out it may be replaced by unwinding the required length from the reel. The doctoring pressure may be adjusted by adjusting the tension of the blade.
Patent GB-732852-A (GB)
Title: Improvements in or relating to control apparatus for an airplane
Inventor: ASHKENAS IRVING LOUIS
IPC: B64C13/46
Filed: 1953-02-10
Abstract: 732,852. Fluid-pressure servomotor-control systems. NORTHROP AIRCRAFT, Inc. Feb. 10, 1953, No. 3694/53. Class 135. [Also in Group XXXIII] In an aircraft fluid-pressure servomotorcontrol system, cables 25, 26 from an elevon cable quadrant 22 are guided round idle pulleys 27 and are adapted to rock a lever 29 mounted on a shaft 32 and mounting pulleys 28, 30 and a tension regulator 31. Fast to shaft 32 are two crank levers 33 operating the rods 36 controlling the valves 34 of two servomotors 35 connected in parallel to operate simultaneously on a single elevon (not shown). The piston-rod 40 of each servomotor is pivoted to the aircraft framework 41, and each servomotor casing is pivoted to a bell-crank lever 43 operating a rod 45 connected to the elevon. A spring box 37 is connected in each valve rod 36, so that if either valve jams, the part of valve rod 36 pivoted to crank 33 can move relative to the other part by exertion of a greater control force, allowing the other valve rod and servomotor to continue to function. Specification 614,102, [Group XXXIII], is referred to.
Patent GB-724290-A (GB)
Title: Improvements in or relating to the manufacture of evacuated envelopes
IPC: H01J5/20
Filed: 1953-02-10
Abstract: 724,290. Discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 10, 1953 [Feb. 16, 1952], No. 3755/53. Addition to 697,922. Class 39 (1). In sealing together parts of an evacuated envelope by a method such as that described in the parent Specification, in which the envelope parts are machined to fit closely together, coated with a suitable material, the meeting surfaces polished to an optical finish, and then heated to cause molecular diffusion to occur in said materials and thus form the joint, the whole operation is carried out in an' outer evacuated chamber. In Fig. 1, L, K, N are the walls of a bell evacuated through a tube Q. The meeting surfaces of the two envelope parts A, B are prepared as described in the parent Specification, and the upper part B is held in a chuck E which can be moved downwards by a screw and bellows device F, G. A heating coil H is used to degas the electrodes, and finally to perform the sealing operation. A thermocouple i measures the temperature.