baber/WOPTO huggingface dataset:
Patent GB-415028-A (GB)
Title: Improvements in or relating to bracket shelves
IPC: A47B57/16
Filed: 1933-02-07
Abstract: 415,028. Bracket shelves. SNEAD & CO., Pine Street, Jersey City, New Jersey, U.S.A.-(Assignees of Waite, C. C. ; 26, Roselle Avenue East, Roselle Park, New Jersey, U.S.A.) Feb. 7, 1933, No. 3781. Convention date, April 27, 1932. [Classes 52 (i) and 52 (v).] In book shelves of the type having hinged end bracket members foldable into the plane of the shelf the bracket members are provided with spring means co-operating with adjacent portions of the shelf yieldingly to hold the brackets in shelf-supporting position. The shelf comprises a flat plate 7 having its front and rear edges flanged downwardly, rearwardly, and upwardly at 10, 11, 12 and bent at its ends to form a series of downwardly extending lugs 13 bored to take a hinge pin 15. The end brackets 8 have corresponding lugs 18 fitting between pairs of lugs 13 and apertured to receive the hinge pin. To hold the brackets in position at right angles to the shelf the lower edge 8<a> of the bracket is bent to spring over the end of the flange 11 of the shelf. Hooks 8<b> formed at the upper part of the bracket fit into spaced slots 29 in the supports B and a lug 8<d> projecting from the lower part of the bracket takes through a lower slot and has an abutment 8<c> resting against the face of the upright. The lug 8<a> prevents the shelf being dislodged by an upward thrust. In a modification, one of the suspending hooks 8<b> has a flat top to prevent such dislodgment. The shelving may comprise bars of channel shape, each bar fitting between pairs of spaced lugs formed on the end brackets 8 and bored to take the hinge pin 15. Fig. 15 shows the angle section uprights 25 secured by bolts 26 to angle irons 23. The uprights at the fiat side of the angle irons may be of channel form or the uprights may comprise clips adapted to embrace and be bolted to the parts 33 of the angle irons. Specification 415,039 is referred to.
Patent GB-576745-A (GB)
Title: Improvements in or relating to resinous compositions
IPC: C08G8/24
Filed: 1944-02-29
Abstract: Resins are made by heating a monohydric phenol with aqueous formaldehyde in presence of an acid catalyst to form a potentially heat-reactive resin, treating the resin for the removal therefrom or the neutralization therein of the acid, and before or after dehydrating, mixing therewith resorcinol and between 16 and 24 per cent of its weight of formaldehyde, paraformaldehyde or other polymer of formaldehyde (calculated as paraformaldehyde) and heating the mixture to bring it to the brittle stage.  The phenol may be, for example, phenol itself, or a cresol, and the acid catalyst may be hydrochloric, sulphuric, or phosphoric acid and may be removed by washing with warm water or by neutralization with barium hydroxide. Preferably, the neutral potentially heat-reactive monohydric phenolic resin is melted after dehydration, the resorcinol is dissolved therein, and the formaldehyde or polymer thereof is added to the solution.  The proportion of monohydric phenol resin in the resin should be about 10-90 per cent and preferably 50-80 per cent, and free phenol may be present.  The amount of hardening agent, e.g. hexamethylene tetramine, required may vary from 2-10 per cent. The resins are used for moulding compositions, varnishes and adhesives, e.g. for bonding coating materials to walls of tanks, and may be incorporated with elastomers such as rubber or polyvinyl butyral.  In examples, a resin obtained from equimolecular proportions of phenol and formaldehyde is: (1), (2) and (3), dehydrated and melted with varying proportions of resorcinol and paraformaldehyde, and (4) mixed with resorcinol and aqueous formaldehyde, followed by dehydration. Reference is made to the mixing of the product of example 1 with wood flour and to its solution in alcohol or acetone.
Patent GB-1371671-A (GB)
Title: Magnetic tape transport
IPC: G11B15/58
Filed: 1972-01-27
Abstract: 1371671 Automatic control of tension AMPEX CORP 27 Jan 1972 3829/72 Heading G3R [Also in Division G5] In a magnetic tape transport system comprising a capstan 28 Fig.2 and transducing heads 29, 31 between a pair of reels 41, 43 and in which tape loops 36, 37 are tensioned by differential pressure in columns 17 having sensing means for controlling the reel drives, the sides of the columns 17 diverge with increased loop length whereby the tape tension is increased with length and as shown, the loop 36 on the side of the take-up spool 41 is arranged to be longer than the loop 37 on the side of the supply spool 43 whereby frictional drag on the heads 29, 31 is compensated for. The tape tension is also thereby equalized on opposite sides of the capstan 28 to avoid slippage; there being no pinch roller provided. The loops 36, 37 are sensed by a pair of photo-cells 26 illuminated from strip lamps 24.  During fast-rewind, only the loop in the column 17 associated with the supply reel 41 Fig.8 is used to control the motors for the reels 41, 43. In operation the fast-rewind supply reel 41 is driven to maintain a long loop towards position 163 and is decreased in speed only when the length is exceeded. Similarly the take-up reel 43 on fastrewind tries to maintain a short loop and is decreased in speed only when the loop is short of the position 168. The arrangement is therefore such that at least one of the reels 41, 43 will be running at its maximum speed and a maximum possible speed of rewind is obtained. The fastrewind means forms the subject of the claims of Specification 1371672. The complete system of automatic control is described with reference to Fig.7 (not shown) which illustrates a circuit including the controller (109) for amplifiers (133, 134) driving the reel motors (135, 136) and associated with error detectors (141, 142) incorporating the photo-cells 26 Fig.2.
Patent GB-1386704-A (GB)
Title: Remote valve for pneumatic tool
IPC: F16K11/16
Filed: 1973-01-25
Abstract: 1386704 Fastener driving tools SENCO PRODUCTS Inc 25 Jan 1973 [17 April 1972] 3845/73 Heading B4C [Also in Division F2] A pilot valve device for operating the main valve of a fastener tool (see Specification 1,386,703) comprises an oscillating stem 94 moved under differential fluid pressure, a manually operated stem 86 controlling movement of the stem 94, and a reciprocable valve housing 34 which enables the main valve to cyclically open and close on a single movement of the manually operated stem 86. In operation pressure fluid passes from the general space 16 through ports 54 in the housing 34 upwardly and out via ports 56 and thence to passage 112 which connects the pilot valve device with the main valve. The fluid also passes downwardly in passage 110 and acts on the lower face of the oscillating stem 94. The outer part of the underside of stem 94 is connected to atmosphere via passages 50, 84 and 28. Thus the stem 94 is held in its lowermost position by fluid pressure. When the stem 86 is actuated manually pressure fluid is applied to the outer underside of stem 94 via passages 78, 84 and 50 which biases the stem 94 upwardly (Fig. 3, not shown). In this position the passage 112 is disconnected from the pressure fluid by an 0-ring 104b and connected to atmosphere via passages 52, 48. The main valve is thereby actuated accordingly. A passage 114 is provided to enable the main valve to cycle. Where the main valve operates a piston in a cylinder the passage 114 is connected to a working chamber. When the piston reaches the end of its working stroke the pressure in passage 114 rises and so raises the valve housing 34 (Fig. 4). Once again pressure fluid flows into passage 112 to change the position of the main valve which in turn lowers the pressure in passage 114 and so on.
Patent GB-1253453-A (GB)
Title: Display screens particularly for use in dark trace cathode ray tubes
Inventor: KISS ZOLTAN JOSEPH
IPC: C09K9/00
Filed: 1969-01-23
Abstract: 1,253,453. Photochromism. R.C.A. CORPORATION. 23 Jan., 1969 [24 Jan., 1968], No. 3855/69. Heading C4S. [Also in Division H1] A display screen comprises a layer of photochromic alkaline earth titanate doped with Fe and/or Mo e.g. Ca titanate doped with 0À05% by weight Fe and 0À1% Mo, or alkaline earth fluoride containing at least one of Ce, La, Gd and Tb which is not catho luminescent and has electron or photon inducible and photon eradicable absorbtion characteristics in the visible regions of the e.m. spectrum. A flat screen 15 of an asymmetric C.R.T. 10 is coated with a crystalline layer 11 of the p.c. material, e.g. CaF doped with divalent Ce by evaporation or hot pressing, alternatively the p.c. material may be embedded in glass or plastics material having the same refractive index. The screen is scanned by an electron beam deflected by a magnetic field produced by coils 18, 19 to produce an absorption pattern illuminated by light from a tungsten lamp 31 passing undistorted through face 16 of the tube. Areas of the pattern are selectively erased by light from a laser 33 or by a high intensity flood light, ambient light being insufficient to erase the pattern. In another embodiment the screen of a symmetrical C.R.T. is coated with reflective Al layer and a layer of finely divided p.c. particles by settling or spreading as a slurry. The pattern is secured by reflective light and may be erased by a fibre optic pen.
Patent GB-566860-A (GB)
Title: Rubber flooring
IPC: E04F15/10
Filed: 1943-03-10
Abstract: 566,860. Electrically conducting rubber flooring. WINGFOOT CORPORATION. March 10, 1943, No. 3901. Convention date, Sept. 11, 1942. [Class 35] [Also in Groups V and VIII] Rubber flooring which minimizes building up static electricity in use, comprises a vulcanized, electrically-conductive rubber composition 1 which may include carbon black or powdered metal &c., with spaced conductors 2, e.g. of flattened, crimped wire, which are readily extensible or compressible, extending therethrough. The conductors 2 may be inserted between two rubber sheets which are then compacted by pressure. The conductors 2 may be earthed.
Patent GB-986514-A (GB)
Title: Improvements in the manufacture of electric incandescent lamps
IPC: H01K3/22
Filed: 1964-01-30
Abstract: 986,514. Electric incandescent lamps. GENERAL ELECTRIC CO. Jan. 30, 1964 [Jan. 30, 1963], No. 3986/64. Heading H1F. A method of manufacturing an electric incandescent lamp of the double-ended type having an elongated tubular envelope 1 of vitreous material containing an axially extending filament 4 connected at its ends to lead-in conductors 5, 6 sealed in the end portions of the envelope, comprises the steps of sealing one end of an exhaust tube 2 of vitreous material into a first end of the envelope, positioning a filament assembly, consisting of a filament attached at its ends to lead-in conductors, axially within the envelope so that a part of the lead-in conductor 5 projects beyond the first end of the envelope into the exhaust tube and a part of the lead-in conductor 6 projects beyond the second end of the envelope, hermetically sealing the second end of the envelope to the conductor 6, evacuating and filling the envelope with a desired atmosphere through the exhaust tube, hermetically sealing the first end of the envelope, and removing the part of the exhaust tube which projects outwardly from the sealed first end of the envelope. The envelope is filled with the desired atmosphere, for example argon containing a small quantity of iodine vapour, at room temperature to a pressure above that of the atmosphere, and during the sealing of the first end the envelope is cooled by immersing the second end in liquid nitrogen to reduce the internal pressure below that of the atmosphere. The completed lamp may contain gas at a pressure of 1400 mm. of mercury at 70‹ F.
Patent GB-571242-A (GB)
Title: Incandescent electric projection lamp with rectifier
IPC: H01K7/02
Filed: 1942-03-26
Abstract: 571,242. Incandescent electric lamps. PATHECINEMA, ANCIENS ETABLISSEMENTS PATHE FRERES. March 26, 1942, No. 4015. Convention date, May 10, 1941. [Class 39 (ii)] A projection lamp for cinematograph work has a mirror surface 1 formed on the exterior or interior of the glass bulb of such shape as to reflect the light from the filament 5 to a point outside the bulb and so that the exposure aperture 7 may intercept the whole of the convergent beam 8. The reflecting portion may be spherical, ellipsoidal, paraboloidal or of other shape. The figure shows the first, with the filament 5 arranged beyond the focus F of the spherical surface.
Patent GB-286069-A (GB)
Title: Improvements in brackets for shelves or other fittings
IPC: A47G29/02
Filed: 1927-02-14
Abstract: 286,069. Wiggin, W. Feb. 14, 1927. Brackets, securing. - A bracket a is formed with a tapered recess b, having undercut edges, for engagement with a correspondingly plate d secured to the wall &c. by a single screw e and formed with projections g which bite into the wall &c. to prevent the plate d turning.
Patent GB-868081-A (GB)
Title: Improvements in or relating to brake valve assemblies particularly for pressure operated braking systems for vehicles
IPC: B60T15/04
Filed: 1958-02-07
Abstract: 868,081. Valves. BOSCH G.m.b.H., ROBERT. Feb. 7, 1958 [Feb. 9, 1957], No. 4029/58. Class 135. [Also in Group XXXIV] In a control valve assembly for pressureoperated braking systems for vehicles, actuating members 16, 23, carried by pistons 13, 15, act upon valve member 7 to control the supply of compressed air from storage containers through ports 9 to the braking cylinders via ports 12, 14 and are operable by a lever or pedal 29 acting through an intermediate driving member 32 that is movable substantially perpendicularly to the actuating members and has cam tracks 35, 36, 37 engageable with co-operating parts thereof. When the assembly is not in use as shown, the valve members 7 are held closed under the action of springs 11, the actuating members 16, 23 which are guided coaxially by a projection 25 of member 23 engaging a bore in the member 16 are held in a centred position by springs 17, 28 abutting the pistons 13, 15 and the ports 12, 14 leading to the brake cylinders communicate with atmosphere via tubular bores 18, 26 and radial ports 19, 27 of the actuating members 16, 23 respectively, chamber 20 and filter 21 loosely surrounding the intermediate member 32. On depressing the operating lever or pedal 29 one of the cam tracks 35, 36 of the intermediate member engages a bolt 45 mounted transversely of the member 16 and an abutment ridge 40 of a disc 38, slidably mounted on a squared section of the member 23 and biased by a spring 41 abutting the piston 15, to move the actuating members 16, 23 outwards first to seat on the valve members 7 to seal the brake cylinders from atmosphere and then to lift the valve members to allow pressure air to enter the brake cylinders and also piston chambers 6, such that when the pressure build-up in the latter is sufficient to overcome the compression of the bias spring 41 caused by the cam profile, the pistons return the actuating members 16, 23 to the position where the valve members 7 seat, until the lever 29 is depressed further, to increase the braking pressure, as described above, or released, when the compressed air supply is shut off by the valves 7 and the brake cylinders are vented to atmosphere by the actuating members 16, 23 being returned by the biasing springs of the pistons 13, 15 to the position shown.
Patent GB-268506-A (GB)
Title: Improvements in or connected with driving mechanism for haulage drums of machines, particularly coal cutting machines and the like
IPC: B66D3/02
Filed: 1926-02-12
Abstract: 268,506. Mayor & Coulson, Ltd., and Mavor, J. B. Feb. 12, 1926. Coal-cutting machines.- Driving mechanism for the haulage drum of a machine such as a coal-cutting machine comprises a shaft A driving the drum through a pinion 2, the shaft A being driven from the motor of the machine either constantly by a toothed wheel E acting through a cone clutch, or intermittently through a ratchet wheel B acting through a jaw clutch 3 and a sleeve C keyed to the shaft A. The cone clutch is controlled by a sleeve F threaded on the clutch member D and operable by a tommy bar engaged with apertures 4: the sleeves F, Care connected by a coupling G to move simultaneously in the axial direction. The cone clutch may be released when the drive is in operation by interposing a trigger II, Fig. 2, to hold the sleve F which is thus screwed back on the shaft.
Patent GB-904980-A (GB)
Title: Improvements in or relating to deformable bushings
IPC: B60G7/02
Filed: 1961-02-03
Abstract: 904,980. Resilient mountings. FORD MOTOR CO. Ltd. Feb. 3, 1961 [Feb. 29, 1960], No. 4108/61. Class 108(3). An elastomer bushing for the front shackle of a vehicle rear leaf spring 17 comprises dual hardness bushings 24 each of which consists of a cylindrical body portion 27 having a durometer hardness, e.g. of 50 by the Shore A test equipment and which is fused, during curing, to a harder flange portion 28, e.g. of 70 durometer hardness, the fused area having a durometer hardness between the valves of the body and the flange portions. As shown, the bushings 24, mounted on a bolt 23 which extends across a boxlike chamber 16 of a shackle support 12 having one end wall 13 formed by a bent plate 13 riveted at 14 to a side frame 11, have their body portions 27 confined within the eye 26 of the leaf spring 17. The flange portions 28 are disposed between the corresponding ends of the eye 26 and a dished washer 22, which fits within an enlarged aperture 18 in a side wall of the chamber 16, and a dished portion 21 of the plate 13.
Patent GB-141842-A (GB)
Title: Improvements relating to boring machines
IPC: B23B41/12
Filed: 1919-02-19
Abstract: 141,842. Martin, W. H. Feb. 19, 1919. Turbines.-Turbine casings having a stepped bore are bored by means of a bar with a radially adjustable tool and fitted with indicating-means. The cutter is carried in a slide c adjustable on a radial guide 'in a collar secured to the bar by means of a screw bevel-geared at f to a central shaft i in the bar. A nut n guided on studs m has an index that shows on a scale o the diameter for which the cutter is set. A second indicator is provided by a pointer p moving over a dial. The longitudinal position is indicated by a pointer on the bar and a longitudinal scale.
Patent GB-178605-A (GB)
Title: Improvements in or relating to furnace grates
IPC: F23H3/02
Filed: 1921-02-04
Abstract: 178,605. Wilton, T. O., and Chemical Engineering & Wilton's Patent Furnace Co., Ltd. Feb. 4, 1921. Grates; fire-bridges. -- In a furnace grate of the kind in which the fire-bars are provided with conical or tapering apertures adapted to form passages when the bars are arranged side by side through which air and steam are delivered to the furnace, the passages d, Fig. 1, formed by the bars c are choked by plates f provided with apertures g, which are smaller than the apertures in the bars c, so as to restrict the supply of air and steam passing from one part of the passage to the next. The blast supplied to the passages d may be passed through the bridge h. The bars c are clamped together by rods provided with springs m to allow for expansion of the bars.
Patent GB-413406-A (GB)
Title: Improvements in heat exchange apparatus for fluids applicable to oil tanks for electrical transformers and other purposes
IPC: H01F27/12
Filed: 1933-02-11
Abstract: 413,406. Straight-tube heat -exchangers. SERCK RADIATORS, Ltd., and UPTON, H. E., Warwick Road, Greet, Birmingham. Feb. 11, 1933, No. 4221. [Class 64 (iii).] In a tubular heat-exchanger applicable to electrical transformer oil tanks and of the kind in which one fluid flows through the tubes c, while another passes through the casing a in a zig-zag path formed by baffles f, g, the baffles g are provided with projections j and the wall of the casing is curved to provide a smooth path for the fluid passing through the casing. Curved guide pieces may be provided at the peripheries of the baffles f.
Patent GB-736116-A (GB)
Title: Improvements relating to exhaust gas driven turbines
IPC: F01D25/32
Filed: 1953-02-16
Abstract: 736,116. Motor power plant; gas turbine plant. CROSSLEY BROS., Ltd., and CARTER, H. D. Dec. 10, 1953 [Feb. 16, 1953], No. 4232/53. Class 110 (3). [Also in Groups XXVII and XXVIII] A power plant comprising a diesel engine, the exhaust of which drives a turbine, has a fixed screen for separating solid material from the exhaust gases as they pass from the engine to turbine. A grid a, formed by closely-spaced rods or slots formed in a plate, extends diagonally across the connection between the diesel engine and turbine. A trap c is provided to collect the separated material. In a modification, the screen is formed by a perforated cylinder with a conical cup closing the end adjacent the exhaust gas inlet. In a further modification, the screen is formed from a number of rods arranged in the form of a cylinder.
Patent GB-511146-A (GB)
Title: Apparatus for filing drawings, plans and other large papers
IPC: B42F15/00
Filed: 1938-02-10
Abstract: 511,146. Filing papers. ULRICH, C. B. Feb. 10, 1938, No. 4245. [Class 146 (i)] Apparatus for vertically filing drawings and other papers of large size comprises a casing in which is mounted a number of horizontal slidable members 25 from which filing pockets are suspended, the ends of the members carrying rollers 26 running on supporting bars in the casing. The sides 10 of the casing comprise two metal sheets 11, 12 spaced by channel members 13 secured to the plate 11 and bearing against a thickness of fireproof material 14 held thereby against the sheet 12, and the ends 35 are similarly formed. A removable cover and the bottom consist of two sheets 18, 19 with an interposed fireproof layer 20. Each pocket comprises metal strips 28 joined at the bottom by pieces of flexible fabric 29, the upper ends 28a of the strips being bent into semi-circular shape to engage the horizontal members 25 which are circular in section with downwardly-extending flanges. Rods 42 are secured at the ends of the members 25 and carry rollers 26 running in channels 27 secured to the inner sheets 23. Spiral springs 31 or flat springs formed on the strips 28 extend between adjacent pockets to compress the filed sheets and hold them in vertical position. Removable partition members 32 hold the pockets in their proper positions in the bottom of the casing, and are provided with hook-shaped projections 32a at their ends engaging in slots 33 in the sheets 23.
Patent GB-470344-A (GB)
Title: Hair-waving appliance
IPC: A45D4/12
Filed: 1936-02-12
Abstract: 470,344. Electric hair - waving appliances. THRIENE, E. Feb. 12, 1936, No. 4279. Convention date, Sept. 21, 1935. [Class 39 (iii)] In a hair-waving device of the electrolytically heated type the ratchet and electrolytic layer are enclosed in a spring clip which also serves as an electric contact device. The clip consists of two spring plates a, b connected to the outer of two concentric contacts d, e ; the inner contact e is connected to a spring g insulated from the plates. The electrolytic pad n is enclosed between two sheets k, m, of metal foil, the outer, p of which is in contact with the plates a, b and the inner formed with a tongue passing through the pad to make contact with the spring g. A sheet o of insulating material is placed inside the electrode m and the outer electrode k encloses the whole, which is placed outside the sachet containing the waving solution, and the whole is gripped by the plates a, b.
Patent GB-182067-A (GB)
Title: Improvements in or relating to smokers' ash trays
IPC: A24F19/00
Filed: 1922-02-14
Abstract: 182,067. Courage, A. D. G. Feb. 14, 1922. Ash - trays.-A pedestal ash-tray comprises a base 1, a column 2 made in several parts screwed together, and a head 3 recessed at 4 to receive an ash-tray and having radial recesses 7 for supporting cigars and cigarettes. The head and base may have shapes other than circular.