baber/WOPTO huggingface dataset:
Patent GB-767532-A (GB)
Title: Improvements relating to the manufacture of plates from powdered substances
Inventor: MARTIN ALBERT EDWARD
IPC: B30B1/00
Filed: 1954-06-10
Abstract: 767,532. Moulding powdered potassium bromide &c. PARSONS & CO., Ltd., C. A. April 22, 1955 [June 10, 1954], No. 17114/54. Class 87(2). For making transparent plastic from powders such as potassium bromide and other alkali halides, for use in spectrometers, by compression between highly polished steel plates in a die from which air is evacuated, the high pressure required is exerted by a constrained metal bar when heated. The polished steel plates or anvils 7, 8 fit in a cylinder 6 in a casing 5, the anvil 8 and a plunger 4 being free to slide in the cylinder and inserted after the powder 9 has been placed on the anvil 7. Air is evacuated through a duct 10 connected to a suction pump. A steel bar 3 is gripped between the top of the plunger 4 and a screw 2 which exerts moderate pressure on it, and it is heated by a gas flame to a temperature sufficient to cause it to expand and produce the additional pressure required to compress the powder into a plate. To show when the heating may be stopped the strain in the frame may be indicated. A rigid L-shaped member 12 may be fixed to the frame 1 at 18, and a block at 13, enabling the strain to be observed by measuring, with a micrometer, the distance between parallel surfaces 19, 20. Such an arrangement may be modified to incorporate a pair of electrical contacts which break at a desired plunger load and open the circuit of an indicating lamp. Alternatively the temperature may be observed, e.g. by the use of temperature sensitive paint.
Patent GB-143586-A (GB)
Title: Improvements in and connected with extrusion of metal
IPC: B21C25/04
Filed: 1918-10-22
Abstract: 143,586. British Insulated & Helsby Cables, Ltd., and Cleworth, R. Oct. 22, 1918. Squirting.-In an extrusion press for tubes, the mandrel 15, preferably of high-speed tool steel, is adjustably clamped in the ram 10 by a split tapered socket 16 screwed into the ram. The mandrel is made a loose fit in the end 19 of the ram to diminish risk of breakage at this point.
Patent GB-682627-A (GB)
Title: Improvements in wind motors having hollow blades with a radial flow of air therethrough
IPC: F03D11/02
Filed: 1950-07-10
Abstract: 682,627. Wind motors. ANDREAU, J. E. July 10, 1950 [July 13, 1949], No. 17242/50. Class 110(iii) A wind motor having a blade the inside of which forms a passage for an air stream flowing from the blade root toward the tip thereof, is characterised in that the tip part of this blade is cut in bevelled fashion so as to form an outlet in a plane parallel to the axis of rotation of said blade and to give said blade tip a negative rake, the cross section of this tip part of the blade consisting of truncated portions of the blade basic aerofoil profiles. The wind motor has hollow blades 1 secured to a hub 2 which is mounted on a hollow mast 3. The blades and the mast are in communication and the mast is connected at its lower end to the outlet side of an air turbine 4 adapted to drive a dynamo 5, air drawn through the turbine 4 being expelled from the tips 0 of the blades 1 by centrifugal action. The tip 0 of each blade is bevelled, preferably at 45 degrees to the longitudinal axis of the blade, and the blade is fitted interiorly with deflector vanes 6 the tip leading edge of each blade being curved at 1b and the trailing edge adjacent the orifice 0 being shaped as at 1c. The truncated profiles of the blade at various sections of the length of the bevelled tip are shown by the dotted profiles p<SP>0</SP>-p<SP>3</SP>.
Patent GB-497594-A (GB)
Title: Method of and means for rendering textile fabrics slip-resistant
Inventor: ROEHM OTTO
IPC: D06M11/70
Filed: 1937-06-21
Abstract: Fabrics are rendered less liable to slip by treatment with an aqueous solution containing a trivalent metal or metals, phosphoric acid radicle and oxalic acid.  The acidity of the solution may be reduced by adding ammonia.  Preferred metals are iron, aluminium and chromium.  The solution may be prepared by dissolving the phosphate of the trivalent metal in phosphoric acid and water, or water soluble metallic salts and a water soluble phosphate may be added to the oxalic acid solution.  In examples: (1) linen fabric is treated at room temperature with ferric phosphate dissolved in oxalic acid solution, squeezed and dried on cylinders.  (2) A viscose fabric is treated at 50 DEG  C. with a solution containing chromic sulphate, oxalic acid and disodium phosphate to which dilute ammonia is added. (3) Aluminium phosphate dissolved in oxalic acid solution may also be used.
Patent GB-791677-A (GB)
Title: Two wheeled vehicle truck
IPC: B61F3/12
Filed: 1955-06-16
Abstract: 791,677. Railway trucks. A C F INDUSTRIES, Inc. June 16, 1955 [Feb. 10, 1955], No. 17363/55. Class 103(6) A railway truck has two wheels W fixed on stub axles 14 which are mounted on journal boxes 12 carried by an axle frame A. The frame has upstanding ears 18 to which rocker arms 22 are pivotally connected, each arm having a pin 24 on which is pivotally mounted an upper spring support 36. This support has two circular pockets to which are secured rubber shear units 30 provided with discs 33 forming the support for the upper ends of springs 34. The lower ends of the springs are retained within supports 50 forming part of the axle frame. The spring support 36 is formed at its ends with ears 38 adapted to receive swing links 40 which support the car body. The body,is provided with stops 46 adapted to contact bumper plates 48 on the axle frame A to limit transverse movement between the truck and the oar body. In a modification the coil springs are replaced by leaf springs. Controlling mechanism for guiding the wheels on the rails at curves, such as described in Specification 791,341 may be used.
Patent GB-121626-A (GB)
Title: Improvements in Guards and Safety Devices for Slubbing, Intermediate and Roving Frames in Cotton Spinning Mills.
Inventor: DOMAKIN JAMES
IPC: D01H1/00
Filed: 1917-11-26
Abstract: 121,626. Domakin, J., and Gibbons, T. Nov. 26, 1917. Interconnecting guard with starting-gear.-A guard a for slubbing, intermediate, or roving frames, provided with openings d, e to clear the lifter chain and pulleys, cannot be removed whilst the machine is in motion, and when removed permits mechanism to lock automatically the starting rod to prevent the starting of the machine. The starting rod h, controlled by the lever m, carries an arm o, and a bent arm p having a slot p<1> adapted to be engaged by a bent lever q pivoted on the framing of the machine. When the parts are in the position shown in Fig. 1 with the belt fork i opposite the loose pulley k, a slot g in the guard is opposite the arm o and the guard may be lifted from the machine. When the guard is removed, the lever q, previously supported by the guard, falls into the slot p<1> thus locking the starting rod, and a catch s on the lever q falls under the arm p and holds the lever in the slot. When the guard is to be replaced, the catch. s is raised by hand, and the guard pushes the lever q out of the slot p<1> and frees the starting-rod. The arm o comes opposite a portion of the guard, and locks it in place, when the fork i is brought over the fast pulley j.
Patent GB-240943-A (GB)
Title: Improvements in change speed gears
IPC: F16D11/12
Filed: 1924-07-21
Abstract: 240,943. Bilantz, M., and Pearson, A. July 21, 1924. variable-speed gearing; clutches, claw. - In variable-speed gearing, each speed is brought into action by engaging a clutch of the kind comprising radially movable spring- pressed dogs e, Figs. 1 and 2. The dogs e slide in apertures in bosses p fast on the shaft and engage in apertures r passing through the rim walls of cup-shaped members i fast to the gears &c. For disengagement, the dogs e are provided with inclines f so that they can be pressed inwards against the springs e<1> by wedge pins g, which are slid axially in unison within the bosses p by grooved striking- collars h. To ensure clutch engagement, the apertures r have extensions in the form of arcuate recesses i<1>, Fig. 2. To diminish shocks resilient couplings as-shown in Fig. 3 may be inserted between the members i<1> and the toothed wheels, or upon the driven shaft s, Fig. 1, at s<1>. Such couplings comprise rubber pads k between transmission dogs l, m. In the three-speed and reversing-gear shown in Fig. 1, the driving-shaft t is in line with the driven shaft s, and a pair a, a<1> constantly drives a countershaft w. A wheel b is fast on the shaft s and a high-speed direct drive is obtained by engaging the clutch E. A middle speed is obtained through a pair b<1>, b by engaging clutch F. Lowest-speed and reversed driving are effected by engaging clutches G, H respectively.
Patent GB-362891-A (GB)
Title: Improvements in or relating to montone printing
IPC: B41M1/12
Filed: 1930-06-05
Abstract: 362,891. Printing. UHER ENGINEERING CO., Ltd., Kubli House, Poststrasse, Glarus, Switzerland. June 5, 1930, No. 17449. Convention date, Jan. 28. Void [Published under Sect. 91 of the Acts]. [Class 100 (ii).] Printing-surfaces; stencils and stencilling apparatus.-Ink or other colouring or toning medium 1 is delivered from the back of the printing-surface by internal pressure and diffuses towards the printing-surface through a coating composed of a permeable layer 2 capable of resisting compression and distortion and an impervious printing-layer 3 firmly adhering thereto, the layer 3 having a pierced or perforated design. The layer 3 is preferably a light-sensitive coating, such as a resin emulsion treated with chromate salts, and is perforated by the action of light, preferably photographically. The layer 2 may be made of baked clay. In the apparatus shown, the ink or other medium 1 is contained in a trough 6 having an inlet nozzle 7. The permeable layer 2 is held by ledges 9 in a frame 8 which is secured over a packing- ring 11 to the trough 6 by screws 10. A press-plate 5 arranged over the printing-surface has a rod 14 guided in a sleeve 15 and under spring action. The press-plate 5 can be raised or lowered to press the paper 4 on the printing-surface. The rod 14 may terminate at the top in a piston-head 16 which moves in a cylinder 17. The remaining space 18 in the cylinder is filled with a fluid under pressure to relieve the pressure on the printing-surface, and may communicate with the internal pressure chamber of the apparatus by means of pipes 19, 20 so that the ink &c. serves also as a counter-pressure medium, and the relieving-strokes are effected accurately in phase with the loading-strokes. The press-plate 5 is coated with an indiarubber or like sheet 21. The impervious printing-layer 3 is perforated in its working position.
Patent GB-1382096-A (GB)
Title: Automatic noise reduction system
IPC: H03G9/02
Filed: 1972-04-14
Abstract: 1382096 Noise reduction system MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 14 April 1972 [16 April 1971 23 Sept 1971] 17454/72 Heading H4R In a noise reduction system particularly for reducing tape hiss in audio recordings, there are provided: an amplifier having a negative feedback path, two impedances one of which is inserted in the main signal path of the amplifier and the other in the feedback path thereby to determine one signal transfer characteristic of the system and a switch for interchanging the positions of the two impedances so as to obtain the complementary characteristics. The transfer characteristics are amplitude compression and expansion preferably applied only in a higher frequency range. In the arrangement shown, a single amplifier 25 is used in the record or playback modes in dependence on the position R or P of the change over switches 21, 22. In the former position, impedance 24 is connected in series with the signal input path while CR network 26, 27, 28 is in a feedback loop, these roles being reversed when the switches are in the playback position. During recording a high frequency portion of an incoming signal is extracted by high pass filter 31 and then, after amplification at 32, amplitude limiting at 33 and rectification and smoothing at 34, it is used as a control signal for adjusting an impedance 29 in a shunt portion of the feedback path. The impedance is descreased under low amplitude level signal conditions whereby increased amplification of these signals particularly at high frequencies is obtained, i.e. a compression mode. During playback, the gain control signal is derived from the output of the amplifier and since the impedances now occupy complementary positions in the circuit an expansion mode is evidenced. The variable impedance 29 may comprise an FET, a transistor or a diode. The control amplifier 32 may have a non- linear feedback circuit consisting of a pair of parallel opposition diodes. The limiter 33 may incorporate a pair of parallel opposition diodes in shunt with the signal path. In both cases the effect is to reduce the attack decay times of the control signal so that violent changes in amplification level of the speech signal are not encountered.
Patent GB-240795-A (GB)
Title: An improved distillation drum for coal or the like
IPC: C10B1/10
Filed: 1925-07-07
Abstract: 240,795. Schwelkohle Kohlenschwelungsges, and Young, B. Oct. 3, 1924, [Convention date]. Retorts.-In an inclined retort, the inner surface is provided with chambers a formed by partitions running longitudinally and transversely, these chambers carrying the charge round in them during the rotation of the drum. The chambers may either have circumferential spaces b between them or may be made in a closed ring. Longitudinally, the chambers are spaced apart at intervals c.
Patent GB-869216-A (GB)
Title: Resilient mounting
IPC: F16D3/78
Filed: 1959-05-22
Abstract: 869,216. Universal joints. RIV OFFICINE DI VILLAR PEROSA S.p.A. May 22, 1959 [May 24, 1958], No. 17548/59. Class 80 (2). [Also in Group XXXII] A resilient bush assembly 16, Fig. 1, for a universal joint comprises a rubber bush 19, Fig. 3, radially compressed between rigid sleeves 17, 18 and formed in the free state with annular grooves 38, 42, Fig. 4, on its circumferential and end faces. The inner sleeves 18 of the bush assemblies are attached by bolts 21 to yoke 20 on the ends of the shafts 10, 11 and the outer sleeves 17 are formed on a common disc 12.
Patent GB-292474-A (GB)
Title: Improvements in apparatus for sorting or classifying articles by means of light
IPC: B07C5/342
Filed: 1928-06-18
Abstract: 292,474. Westinghouse Electric & Manufacturing Co., (Assignees of Zworykin, V. K.). June 16, 1927, [Convention date]. Alarm, indicating, recording, and registering apparatus. - Relates to apparatus for sorting articles by means of light sensitive devices which are subjected to the light reflected from the surface of the articles the electric energy so developed being utilized to actuate the means for segregating the articles, and consists in the provision of a series of such light sensitive devices which are adapted to scan successive portions of the articles as they move. past. The application of the invention is to the inspection and sorting of tin-plated or galvanized sheets, paper, cardboard, fabrics &c. In the apparatus described, the sheets 43, Fig. 1, are conveyed by rollers 2 past the inspection device which consists of a transversely arranged box 8 containing a number of photo-electric cells 31, Fig. 3, and a linear source of light 9 contained in a casing 10. The light reflected from the sheets is passed to the cells, a reflecting surface 44 being provided to prevent actuation of the apparatus during the intervals between the sheets. Preferably the cells are arranged in series in two groups 50, Fig. 4, forming with variable resistances 53, 54 the elements of a Wheatstone bridge. A source of high potential 55 and a thermionic valve 56 are arranged across the network which is balanced so that the filament 57 and grid 58 are at the same potential, when the reflected light has a predetermined intensity. When a defective part of the sheet passes under any one of the cells, the balance is disturbed producing a current in the plate circuit of the valve which is amplified by the device 12 and energizes a solenoid 14, the armature of which closes the contacts 16, 17. The delivery table 6 of the device is hinged and is normally held in the position shown by a solenoid 7 energized by the battery 25. When the contacts 16, 17 are closed, the solenoid is partly deenergized and the table drops by its own weight, the armature closing contacts 30 in a second shunt circuit which is provided so as to maintain the table in the set position until released by the timed opening of this circuit by the cam or other device 28. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification; the apparatus may be adapted for inspecting fabrics and like materials by transmitted light, the variations in which may be caused to operate an audible signal and stop the machine. This subject-matter does not appear in the Specification as accepted.
Patent GB-239655-A (GB)
Title: Improvements in cottage larders
IPC: A47B71/00
Filed: 1924-07-23
Abstract: 239,655. Watson, T. July 23, 1924. Storage cellars.-A pantry is provided with a partition 3 pivoted to the top and bottom at 4, 4, and carrying shelves 5 supported at their outer ends by stays 6 and bolts 7. A ventilation aperture 8 is provided at the rear and another may be provided in the doors, both being covered by readily removable gauze for cleaning.
Patent GB-661879-A (GB)
Title: Improvements in boring, facing and milling machines and like machine tools
IPC: B23B39/02
Filed: 1948-06-30
Abstract: 661,879. Boring, facing, and milling machines. BERTHIEZ, C. W. June 30, 1948, No. 17615/48. Class 83 (iii). A boring, facing, and milling machine comprises a head-stock provided with a spindle and movable on a slide in the direction of the spindle axis characterized in that an end face of the head-stock which is arranged transversely of the length thereof is a machined and trued face adapted to be used as a bearing and securing surface for any attachment required for machining the work-piece, such as an outboard milling support for the spindle. The verticallyadjustable head-stock 1 has its front face, adjacent the spindle sleeve 12, machined and provided with T-slots, or these may be provided on a plate 5 secured by screws to the head-stock. A number of plates 5 with different arrangements of grooves and clamping holes 7 may be employed. Various attachments may be secured to the head-stock by this means such as an outboard support 14, Fig. 4, for a spindle extension carrying a series of milling cutters 15. The periphery of the outer bearing for the sleeve may form one wall of a circular groove 9, coaxial with the machine spindle 10. Specification 661,880 is referred to.
Patent GB-1311814-A (GB)
Title: Adjustable shelving
IPC: F16B7/04
Filed: 1971-05-28
Abstract: 1311814 Shelving S KESILMAN M KRAVITZ and H B PENN 28 May 1971 [4 Nov 1970] 17727/71 Heading A4B  A shelving assembly comprises spaced tubular uprights 1 on which are slidable shelf supports 9 releasably secured at any desired height by grub screws 15, each shelf 4 being provided at each corner with a collar 9 having a frusto-conical cavity 10 which wedges over a support 9. As shown, Fig. 2, the support 9 comprises an annular base 13 with upwardly extending resilient fingers 14 which frictionally clamp onto the upright 1 when engaged within a collar 9. In a modification. Figs.10,11, (not shown), the uprights 1 are of square cross-section, the support and collar cavity being correspondingly shaped. In another embodiment, Figs. 8, 9, using a square section upright 18, the shelf support 17 comprises a base part 19 and two upstanding walls 20, 21 with inclined outer surfaces having a wedging engagement in the collar 16.
Patent GB-293028-A (GB)
Title: Improvements in drying apparatus
IPC: F26B17/02
Filed: 1928-06-19
Abstract: 293,028. I. G. Farbenindustrie Akt.- Ges. June 30, 1927, [Convention date]. Film evaporators.-In apparatus for drying pastes of the kind in which the paste is carried in a film on a band of wire netting h moving rollers e, e<1> through a partitioned chamber a through which hot air is blown by a fan b, lateral displacement of the band h is prevented by mounting the rollers e, e<1> in sliding bearings balanced by springs f, f<1> in the direction of the traction of the band and lateral springs g, g<1>, Fig. 2 in axial direction of the rollers. The dried paste is detached from the net by passing it over rollers l and falls into a barrel m.
Patent GB-319393-A (GB)
Title: Improved oxygen evolving preparations and their application for air purification
IPC: A62B21/00
Filed: 1928-06-19
Abstract: 319,393. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler, Zisch, W., and Herzog, E. June 19, 1928. Respiratory appliances. - Compounds which evolve oxygen and absorb carbon dioxide, suitable for use in respiratory apparatus, and which contain a mixture of alkali trioxide and alkali hydroxide are prepared by reaction of alkalyl hydroxide and alkali peroxide according to the equation :- Na02H + Na2O2 = Na203 + NaOH. The reaction takes place slowly at ordinary temperature and is accelerated by beating, the reaction being completed by heating to 120‹ C. Excess of alkali hydroxide may be added. The mixture may be compressed to form pastilles or shaped bodies. Inert substances such as silicic acid, kieselguhr, &c. and catalysts such as oxides of manganese, cobalt or copper may be added. The mixture of alkalyl hydroxide and alkali peroxide may be formed by adding water in small proportions and in finely-divided form as vapour, snow, spray or mist to alkali peroxide, or by mixing alkali peroxide and alkali peroxide- 2-hydrate in the requisite proportions. Specifications 138,649 and 280,554 are referred to.
Patent GB-162576-A (GB)
Title: Improvements in self-feeding, oiling and polishing pads
IPC: A47L13/314
Filed: 1920-06-30
Abstract: 162,576. Webb, W. G. June 30, 1920. Reservoir pads; pads and like rubbing and polishing appliances; cloths stretched over backings. - An oiling and polishing appliance comprises two separate pads C, D, detachably secured to a reversible liquid-container A by means of metal hooks E slipped over studs F, the container being perforated on one side B to admit liquid to the pad C. The liquid is poured into the container through a screw-cap filler K, the container then being reversed to allow the liquid to pass through the base B and impregnate the pad C..
Patent GB-662109-A (GB)
Title: Improvements in and relating to drawing instruments
IPC: B43L9/20
Filed: 1949-07-06
Abstract: 662,109. Compasses and dividers. HILGER & WATTS, Ltd., and COMPTON, A. H. S. T. July 4, 1950 [July 6, 1949], No. 17836/49. Class 97 (iii). The arms a, b, Fig. 2, of a pair of compasses or dividers are pivoted on a bolt c supported in a forked member d carrying the head e. The arms a, b are recessed to receive conical bearings f. Each arm is provided with an annular steel insert h, the opposing plane surfaces of the inserts being separated by ball bearings g mounted in a flexible plate-like member k pivoted on the bolt c and having a tongue l engaging a hole m in the head e. As shown in Fig. 3, the member k is provided with an even number of holes of slightly smaller diameter than the balls g; alternate balls are mounted in the holes on opposite sides of the member. A bolt i is provided between the lower ends of the fork d to adjust the pressure exerted on the cone bearings and on the balls and the member k. The head e is by this arrangement maintained central with respect to the arms. The member k may be flat or corrugated and may have dishings about the holes, or the holes may be bevelled. According to the Provisional Specification the balls may ride in circular grooves in the plane bearing surfaces.