baber/WOPTO huggingface dataset:
Patent GB-1088073-A (GB)
Title: Photo-charging of xerographic plates
IPC: G03G5/043
Filed: 1966-02-25
Abstract: 1,088,073. Electro-statically charging photo-conductors. RANK XEROX Ltd. Feb. 25, 1966 [March 1, 1965], No. 8541/66. Heading G2H. Photo-conductive insulating layers are electrostatically charged for the preparation of electrophotographic images by uniformly exposing the layer to electromagnetic radiation having a wavelength not longer than the threshold wavelength for the photo-emission of electrons from the layer and collecting the emitted electrons on a grid or transparent electrode which is maintained at a positive potential with respect to the layer. As shown in Fig. 2 a photo-conductive layer 22 on a conductive backing 21 in the form of a drum is charged by uniform exposure to short wave UV light from a broad spectrum source 27, the long wave UV and visible light being filtered out by a filter 31; the electrons emitted from the photoconductor are trapped by a transparent electrode 24 consisting of a quartz plate with a thin coating of tin oxide thereon, which is maintained at a positive potential and through which the exposure is made. The uniformly charged areas of the drum are then exposed; light from the source 27 is reflected off an original 32 held on a rotating drum 33 by a finger 36, through a slit 29 in the lamp housing 29 and focused on the drum by a glass lens 37, which as filters out the short wave UV radiation, and a mirror 38. The latent electrostatic image is then developed at station 41, the developed image transferred to a receiving sheet station 49 and the drum cleaned at station 57. In embodiments, the photo-conductive layer may be in the form of a plate on to which the short wave UV radiation is directed by a concave mirror Fig. 1 (not shown), the support for the photoconductor may be transparent so that the exposure may be effected therethrough and the photoconductive layer may be overcoated with a holetrapping material, e. g. thallium doped selenium, cadmium sulphide or cadmium sulphoselenide.
Patent GB-790784-A (GB)
Title: Mining truck rail systems
Inventor: BARKER WILFRED
IPC: B61B1/00
Filed: 1955-03-24
Abstract: 790,784. Turntables; transferring vehicles between pit cages and tipplers. BARKER & SONS ENGINEERS, Ltd., W. H. March 2, 1956 [March 24, 1955], No. 8567/55. Classes 78 (4) and 104 (2). A mining truck rail system in which an empty truck from a tippler is used to remove a full truck from a pit cage for delivery to the tippler includes three converging rail tracks situated at either or each side of a pit mouth and a turntable at the point of convergence, the turn-table being provided with tiltable rails for discharging the truck therefrom. An empty truck from a tippler e passes along track a to a turntable d. The turntable is then rotated to align with either track b or c leading to the pit mouth f and thereafter the rails i are tilted as by a jacking mechanism or a ramp whereby the truck is discharged to pass along the particular track b or c to a cage g at the pit mouth. The turntable has a buffer h for arresting the trucks. The turntable may be actuated. by an electric motor or by a fluid-operated ram. A similar set of tracks and a turntable may be positioned on the other side of the pit mouth for conveying loaded trucks to the tippler and may be used in addition to or alternatively to the other tracks and turntable.
Patent GB-383516-A (GB)
Title: Improvements in safety clutch mechanisms
IPC: F16D43/206
Filed: 1932-03-23
Abstract: 383,516. Overload-release clutches. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co. ; 511, 5th Avenue, New York, U.S.A.) March 23, 1932, No. 8623. [Class 80 (ii).] In a bidirectional overload-release clutch, a clutch plate 16 between the driving-member 12 and the driven member 23 has depressions co-operating with spring-pressed balls 15 in the driving-member and peripheral recesses 33 which house two sets of rollers 24, 25, one set or the other jamming between the plate 16 and a flange 22 on the driven member, according to the direction of rotation, and being positively released by projections 28 on the driving-member when relative movement between the plate 16 and the driving element occurs due to overload. The member 12 which is keyed to the driving-shaft 10 has a disc 13 pinned to it. The balls 15 are located in holes in this disc and their springs 18 are adjusted by a collar 19. The members 16, 23 are loose on the shaft 10 and the recesses 33 in the former have symmetrical inclines 26 against which the rollers are pressed by springs 27. The projections 28 are normally at the apices of the recesses 33.
Patent GB-289241-A (GB)
Title: Manufacture of sulphur dyestuffs
IPC: C09B49/06
Filed: 1927-03-29
Abstract: 289,241. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). March 29, 1927. Sulphuretted dyes are produced by treating an amino-or oxy-aryl compound with free sulphocyanogen or a compound yielding the same and converting the resulting sulphocyano derivative into the corresponding thiophenol or disulphide. According to one example, 8-oxy-1 : 2-naphthophenazine is converted into its sulphocyano derivative by the process of Specification 240,420, namely by treatment with sulphuryl chloride and lead sulphocyanide in the presence of carbon tetrachloride. The leuco dyestuff or the dyestuff itself is then obtained by boiling with sodium disulphide or caustic soda and precipitating the product by passing in air or by adding acetic or other acid. According to other examples sulphuretted dyes are prepared in a similar manner from the sulphocyano derivatives of 8: 8<1>-diaxy-1 : 2 : 1<1> : 2<1>-dinaphthazine, tolusafranine and tri (diphenylamine) methane hydrochloride. With the exception of the sulphocyano derivative of tri (diphenylamine) methane which is a dyestuff, the sulphocyano derivatives are in general insoluble resinous products.
Patent GB-1458449-A (GB)
Title: Shedding motion apparatus for looms
IPC: D03C3/40
Filed: 1974-02-26
Abstract: 1458449 Double lift shedding motion W E N LAURITSEN 26 Feb 1974 [5 March 1973] 8677/74 Heading D1E A double lift open shed shedding motion comprises a selector pin 21 which may be connected to a heald and movable longitudinally, a section means 1, movable against a spring 12 to determine upper and lower shed positions operating means comprising pairs of drive means A, B which can selectively engage spaced studs 6 1 , 7 1 , on each selector pin 2 1 , the selection means 1 being arranged to engage selectively on one or another of a pair of abutment faces 10, 11 on the selector pin to determine the shed positions the spacings of which are greater than the length of the central portion of the stroke of the reciprocation of the drive means. Engagement of the faces 10, 11 with the selectors is ensured by springs 8, 9. Figs. 9 and 11 show modified forms of selector pins 2 and selection means 1. In Fig. the location of the above system in a dobby is shown.
Patent GB-495009-A (GB)
Title: Improvements in electric oscillating devices having a piezo-electric crystal suspended in a bulb
IPC: H03H9/10
Filed: 1938-03-21
Abstract: 495,009. Piezo - electric crystal mountings. FABBRICA ITALIANA MAGNETI MARELLI. March 21, 1938, No. 8685. Convention date, March 22, 1937. [Class 40 (v)] A crystal and electrode assembly are supported in an evacuated bulb by rods 5, 6, Figs. 1, 2, anchored at one end in the stem 4 and at the other by a mica sheet 9 supported by the bulb wall. The rods 5 support an electrode 7 by lugs 7<1>, the crystal 10 being positioned by further lugs 7<11>, while the rods 6 carry a plate 13 to which the electrode 8 is attached by rods 11. The latter project through split bushes 12, Fig. 4, to which they are soldered when the pressure of electrode 8 on the crystal has been suitably adjusted. In another embodiment, Fig. 13, the electrode 8 is held in contact with the crystal 10 by a spring 18 the compression of which is adjustable by a screw 19, the crystal being located by the C-shaped electrode 15 and a mica plate at each end of the assembly threaded on the rods 5, 6.
Patent GB-856169-A (GB)
Title: An air-conditioning appliance
IPC: F24F3/16
Filed: 1958-03-18
Abstract: 856,169. Ventilating. SUDDEUTSCHE KUHLERFABRIK J. F. BEHR. March 18, 1958 [May 10, 1957], No. 8690/58. Class 137. An air conditioning appliance comprises a fan 1, an air purification device, e.g. at least one electrostatic filter 7, a heating device, e.g. (a) grid(s) 5 and an ultra violet radiator 9 for bactericidal purposes, united to form a single unit in a common housing, at or near the opposite sides of which the grid(s) 5 and the filter 7 are mounted with the other components therebetween. The radiator or lamp 9 is preferably between the fan 1 and the filter 7, the surface of which is exposed to the rays of the lamp 9 of a wave length such that the oxygen molecules are split into ozone. The grid(s) 5 is/are controlled by a room thermostat. A safety thermostat set at a maximum value acts in response to the temperature of the exit air to control the supply switch 10.
Patent GB-650688-A (GB)
Title: Improvements in and relating to electric filter circuits
IPC: H03H11/38
Filed: 1947-03-31
Abstract: 650,688. Pulse circuits. GENERAL ELECTRIC CO., Ltd., and LEVY, M. M. March 31, 1947, No. 8704. [Class 40 (vi)] In a network constituted to transmit energy only in one direction, for instance by connecting valves therein, and in which an oscillation is produced at the output when a short pulse is applied to the input, a bridging network is connected between two spaced points on the main network, the sum of the time delays through the bridging network and through the main network between the spaced points, being equal to the periodic time of the oscillation. As shown, the network comprises three low-pass filter networks N1, N2 and N3 coupling amplifying valves, and the bridging network BN consists of a condenser. A short pulse at the input produces a peak followed by damped oscillations at point A and a derivative of this waveform is fed back to B, reaching A again after a time delay. If this is equal to the period of the damped oscillations the result is to reduce their amplitude and render them more symmetrical. The feed-back BN will also produce second and third derivatives but these are negligible. Other modifications of the waveform can be obtained by altering the feedback. For example an echo signal can be eliminated or the phase characteristic of the amplifier can be made more nearly linear. Specification 614,720, [Group XL (b)], is referred to.
Patent GB-673815-A (GB)
Title: A stencilling machine
Inventor: MCCORMICK WILLIAM PHILIP
IPC: B41F15/42
Filed: 1948-03-24
Abstract: 673,815. Stencilling-apparatus. McCORMICK, W. P. March 24, 1948, No. 8713/48. Class 100 (ii).  A power-operated stencil-printing machine comprises a stencil frame 12 mounted for pivotal movement to and from a work table 14 and working in synchronism therewith a crank mechanism 8, 8a rotating in a vertical plane and reciprocating a squeegee 20 through a lost-motion connection 19, 19a so that (a) the squeegee is lifted clear of the stencil during the return stroke and (b) increased time is available for removing a printed sheet and inserting a sheet to be printed, at the end of a return stroke and before the raised frame 12 is lowered to printing position. The squeegee 20 is carried in a mounting 9 slidable in slotted bars 11 for reciprocation over a stencil 13 carried by the frame 12 fixed on the bars 11. The bars 11 are pivoted about a shaft 7 which carries at its extremities two discs 8 to which push rods 10 are pivoted at 8a and which reciprocate the mounting 9. The discs 8 are driven from a motor A through a gearbox 1 and gearing 2-6. Mounted on the gear shaft 6 are discs 17 carrying rollers 15 which engage arms 16, dependingly fixed to the bars 11, at the moment the squeegee has reached the end of its forward travel and thus elevate the bars 11 and the stencil 13 away from a work supporting table 14. The squeegee 20 is adjustably mounted on a rod 21, Fig. 5, and is in the forward stroke urged into contact with the stencil by the connection 19 secured between the ends of the two push rods 10, and in the return stroke the connection 19 slides in the slot 19a in the mounting 9 and by engagement with a clip 23 lifts the squeegee 20 from the stencil 13.
Patent GB-1249569-A (GB)
Title: Treatment of coal tar pitch
Inventor: HOLDSWORTH ERNEST CLIFFORD
IPC: C10C1/19
Filed: 1969-02-18
Abstract: 1,249,569. Treating pitch. MIDLAND YORKSHIRE TAR DISTILLERS Ltd. 18 Feb., 1970 [18 Feb., 1969], No. 8736/69. Heading C5E. Coal tar pitch is upgraded by co-distilling the pitch with an oil derived from coal tar distillation and having 95% boiling in the range 210‹ to 320‹ C., and simultaneously or subsequently heating the distillation residue at 350‹ to 450‹ C. Thus a mixture of the pitch and oil may be heated up to 350‹ to 450‹ C., or the pitch may be preheated to 350‹ to 450‹ C. and the oil gradually added to the hot pitch. Oils mentioned include wash oil (B.R. 230‹ to 290‹ C.), naphthalene oil (B.R. 210‹ to 230‹ C.), and mixtures thereof. Co-distillation removes heavy oils that were in the pitch initially and makes the pitch more responsive to thermal treatment.
Patent GB-387532-A (GB)
Title: Improvements in or relating to fastening devices for bonnets of vehicles
IPC: E05B65/19
Filed: 1932-03-24
Abstract: 387,532. Fastenings. MASSUGER, L., 6, Boulevard d'Italie, Le Vesinet, and MARQUE, L., 16, Rue de Sartoris, La Garenne, Seine, both in France. March 24, 1932, No. 8798. [Class 44.] A motor-car bonnet-fastening comprises a spring-pressed hook member which is operated by a cam-shaped lever pivoted to the bonnet. The hook 3, Fig. 1, is guided by studs 7, 8 so that as it is depressed by the cam-shaped end 12 of a lever 4, it swings away from the retaining lug 16. In a modification the hook is guided by one stud 31, Fig. 8, which acts in conjunction with a fixed ramp 40. The hook is maintained in engagement with the lug 16 by a lever 43 which is engaged by a stud 41 carried by the cam 34. In a further modification the hook 19, Fig. 5, is of tubular form and is rotated about its axis as it is depressed.
Patent GB-565157-A (GB)
Title: Improvements in or relating to protectors for the covers of books when cleaning soiled or dirty pages thereof
IPC: B42D3/18
Filed: 1943-06-02
Abstract: 565,157. Book protectors. HOLDSWORTH, G. June 2, 1943, No. 8810. [Class 16] A protector for the covers of books wher the pages are being cleaned comprises a sheet 2 of metal plastic material, &c. having upstanding lips 3 on one, two, or three edges, the lips serving to protect the edges of the cover and the leaves during cleaning.
Patent GB-145897-A (GB)
Title: Coal boxes and the like
IPC: F24B15/04
Filed: 1919-04-08
Abstract: 145,897. Williams, J., and Dupont, G. C. April 8, 1919. Coal-boxes.-A coalbox comprises an inner lining a, Figs. 5 and 7, and an outer casing b, which carries a hinged lid at one end and is open at the other, so that when the box is in the upright position shown in Fig. 7 the outer casing can be put on or lifted off without disturbance of the coal in the inner lining. The bottom portion of the front end nf the lining is formed with a comparativelv long slope a<2>, and is provided with studs a<6> which engage with hooks b<4> on the casing. The handle a<4> is retained bv a catch a<5> when not in use. A recess b<1> is formed in the lid to receive the handle of a scoop.
Patent GB-526568-A (GB)
Title: Improved circuit arrangements for producing or amplifying ultra-high-frequency oscillations
IPC: H03B5/10
Filed: 1939-03-20
Abstract: 526,568. Valve amplifying and generating circuits. NAAMLOOZE VENNOOTSCHAP PHILLIPS' GLOEILAMPENFABRIEKEN. March 20, 1939, No. 8877. Convention date, March 22, 1938. [Class 40 (v)] A circuit for amplifying or generating ultra high-frequency oscillations comprises a low loss resonator, consisting of a metal container having distributed self-inductance and capacity, in the grid circuit of a discharge tube in which backcoupling is provided between the output and the resonator and in which means are provided to remove back-coupling through internal impedances of the discharge tube or through impedances of the supply leads. A screen grid may be used to remove back-coupling due to inter-electrode capacity. The Fig. shows a circuit in which back coupling is effected through condenser 6. A neutralizing condenser 8 removes back-coupling due to the inter-electrode capacity. The output may be taken from anode impedance 9 and a screen-grid may be provided to counteract the reaction of load variations in the anode circuit on the generator circuit.
Patent GB-1529413-A (GB)
Title: Test composition device and method
IPC: G01N33/483
Filed: 1977-03-02
Abstract: 1529413 Test device with inhibitor MILES LABORATORIES Inc 2 March 1977 [18 March 1976 17 Sept 1976] 8880/77 Heading G1B A test composition which may be incorporated into a matrix of for example paper comprises a reactant system producing a detectable response on contact with a component to be determined in a sample and an inhibitor system which on contact with the sample prevents the reactant system from interacting with the component after elapse of a predetermined time. The inhibitor system may comprise a material which sets or hardens in contact with the sample, a substance capable of producing heat on contact with the sample or a poison for the reactant system, and all or part of the inhibitor system may be encapsulated in watersoluble or water-rupturable capsules. Examples relate to compositions for determination of glucose, aceto acetic acid urobilinogen and occult blood in urine.
Patent GB-602340-A (GB)
Title: Improvements in and relating to pressure control systems
IPC: B64D13/02
Filed: 1945-04-10
Abstract: 602,340. Fluid-pressure servomotor-control systems. WESTLAND AIRCRAFT, Ltd., WIDGERY, W. M., SEMMENCE, H. W., and RICHARDS, S. T. A. April 10, 1945, No. 8902. [Class 135] In a space pressure-control system as disclosed in Specification 563,553, the absolute pressure - sensitive capsule stack 17 is attached to one or more differential pressuresensitive capsule elements a, the interiors of which are in communication through the hollow supporting spindle with the ambient air. Specifications 563,553, 602,338 and 602,339 are referred to.
Patent GB-673735-A (GB)
Title: Illuminated sign
IPC: G09F13/06
Filed: 1948-03-30
Abstract: 673,735. Applications of luminescent materials. EXPANSION INDUSTRIELLE SOC. ANON. March 30, 1948 [April 3, 1947], No. 9020/48. Class 39 (i). [Also in Group XVIII] An illuminated sign is formed by the end face of a solid figure of translucent fluorescent material which shows through an opening in an opaque shield, the side faces of the figure being irradiated or illuminated to give fluorescence at the visible end. The front face d<SP>1</SP> of figure d fits closely into an opening in the opaque front a of a box which also contains lighting or ultra-violet tubes e illuminating or irradiating the projecting parts d<SP>2</SP> of the figure d. This figure may be a bent sheet, plate or foil in one or more parts; or a rod bent to make a compound written sign. A rod or bar gives a sign in the form of a dot. The inside of the box may be reflecting or be painted glowing white; and its front face may rest against a glass window or a transparent plate. The translucent fluorescent material may be a coloured polymethacrylic acid ester. Specification 642,119 is referred to.
Patent GB-1024698-A (GB)
Title: Fluid seals
Inventor: SPENCE PETER
IPC: F16J15/48
Filed: 1964-03-03
Abstract: 1,024,698. Seals. DOWTY TECHNICAL DEVELOPMENTS Ltd. March 2, 1965 [March 3, 1964], No. 9032/64. Heading F2B. A seal is made of such material that, when under fluid pressure, it can achieve precise sealing conformity with a surface to be sealed by a combination of elastic deformation and plastic deformation, but, upon reduction or release of fluid pressure, it can return to a free clearance condition by virtue of the relaxation of the elastic deformation alone. The material may be a lead or tin alloy or lead coated with P.T.F.E. The seal is arranged in a recess of a rotary or reciprocating member, its axial length being shorter than the axial length of the recess to allow fluid pressure to enter behind the seal and urge it radially outwards. The seal may be cylindrical or U-shaped in cross-section.
Patent GB-766113-A (GB)
Title: Improvements in or relating to a windshield cleaning system
IPC: B60S1/48
Filed: 1955-03-29
Abstract: 766,113. Windscreen washers. BACHRACH, C., NEUFELD, L. C., MORGAN, W. C., McGINN, F., and GIMBEL, J. W., [trading as DELMAN, CO.]. March 29, 1955, No. 9181/55. Class 138(1) A windscreen cleaning system, Fig. 1, comprises wipers operated by a power unit 29, a washing unit 11 including a pump assembly 23 having a control device 10 which when depressed causes liquid to be supplied to a nozzle 26, the control device 10 including treadle member 57 for concurrently operating the units 11, 29, means for mounting the treadle member 57 on the pump assembly 23 for pivotal movement relative thereto and a connection between the treadle member 57 and the power unit 29 for controlling the operation of the latter in response to a pivoted movement of the treadle member. The power unit 29 is a suction motor which drives, through a transmission 84, wiper arms 28, and the washer unit 11 has a liquid reservoir 21 connected by a pipe 27 to the nozzle 26 and by a pipe 22 to the pump 23. The pump is operable by a foot plunger 24 passing through an inclined portion 19 of the vehicle footboard whereas the motor 29 is operable by having its control valve actuating member 32 connected by a flexible cable 64 to the foot treadle member 57 pivoted on the upper end of the pump plunger 24. As shown in Fig. 4. a bracket member 46, secured to the top of the plunger rod 24 by a screw 56, has a pair of spaced ears 51 between which is pivotably secured by a pin 59, a leg 58 depending centrally from the member 57. Cam surfaces 86 on the leg 58 are engageable with the base of the slot formed between the ears 51 in order to retain the member 57 in either of the two positions shown. An extension 47 of the bracket 46 is provided with a hole in which the casing 66 of the wire 64 is secured by a screw 68. The wire 64, Fig. 5, also passes through the hole in the extension 47 and is secured in a hole in a tubular member 69 by a screw 72. The member 69 is carried in spaced ears 71 depending from the end 63 of the member 57. Adjustment of the cable 64 relative to its casing 66 and thus the opening of the control valve, is facilitated by the provision of a slot 75 in the end 63 of the member 57. In the full line position of the treadle 57, shown in Fig. 4, the motor control valve is closed whilst in the dotted line position the valve is opened. Clearly the washer unit may be operated concurrently with the wiper unit by depressing the plunger and at the same time pivoting the treadle member. The wiper motor may be an electric motor or the wipers may be operated from a clutch mechanism connected with a moving part of the vehicle engine. The cable 64 would then be connected to the motor control or to the clutch mechanism, as the case may be.