baber/WOPTO huggingface dataset:
Patent GB-720050-A (GB)
Title: Corrosion-resistant coatings on copper infiltrated ferrous skeleton bodies
IPC: B22F3/11
Filed: 1952-06-13
Abstract: A method of producing a corrosion-resistant coating on a ferrous skeleton with a copper infiltrant comprises removing the copper from a thin surface layer, preferably less than 0.001 inch thick, and then depositing chromium from a chromium-containing substance on to the surface.  The heat treatment of the body at 870 DEG  C. in an atmosphere of cracked ammonia followed by quenching and precipitation hardening at 500 DEG  C. is described, after which copper is removed by immersion in a chromic acid or cyanamide solution, and chromium deposited, for example by treatment with a chromium halide at 900-1200 DEG  C. or by the use of a chromizing pack of aluminium oxide, chromium and methyl alcohol at about 950 DEG  C., or 1100 DEG C. if diffusion of the chromium into the body is desired.  The chromizing pack may also contain ferro-columbium and/or titanium hydride.  The treatment of jet-engine compressor blades is described and illustrated.  U.S.A. Specification 2,566,752 is referred to.
Patent GB-663962-A (GB)
Title: Improvements in corrosion-inhibiting connecting device adapted to secure an electriccable on a storage battery terminal or like member
IPC: H01R11/28
Filed: 1949-06-03
Abstract: 663,962. Couplings. NOIR, R. June 3, 1949 [July 2, 1948; Nov. 12, 1948], Nos. 15015/49 and 15016/49. Class 38 (i). A battery-terminal connector comprises a cap 1 having a slotted frusto-conical skirt 2 which can be tightened on a battery terminal 18 by an encircling nut 6 provided with a conically-shaped sleeve 7 which contracts the skirt on the terminal when the nut is screwed on the cap and an insulating chamber 12 containing corrosion-inhibiting material surrounds the nut 6 and the sleeve 7. An eye terminal 10 on a cable-end 10a is secured to the cap by the screwed stem 9 of a pressure-member 8, e.g. an oiler, and a washer 11. The end of the sleeve 7 fits into a groove 16 in the chamber which contains, e.g., grease. Preferably, the slots 4 in the skirt act as milling-cutters to shape the terminal 18. In a modification, Fig. 2, the screw 6 is replaced by a ring or hoop 19 and the top 9a of the screwed stem 9 is encased in a plastic disc 20 forming a lid for the grease-filled chamber 12a. To remove the cap from the terminal, the eye 10 is removed and the pressuremember is screwed against the terminal top, thereby withdrawing the cap.
Patent GB-923831-A (GB)
Title: Improvements in or relating to combined draining board and sink constructions
Inventor: SMITH HERMAN GELDERT
IPC: E03C1/182
Filed: 1959-05-02
Abstract: 923,831. Sinks. HERMAN SMITH MASTERCRAFT Ltd. Jan. 4, 1960 [May 2, 1959; Aug. 15, 1959], Nos. 15079/59 and 27967/59. Class 26. A combined sink and draining board comprises a metal sink 5, an apertured draining board of synthetic resin with a rim 3 around the aperture engageable with a rim 6 on the sink, and means to support the sink 5 beneath the draining board in such engagement. The rim 3 may be thickened, may have a downwardly-directed flange 4 and may be curved to form a raised portion 9 engaging on a sink cabinet, Fig. 1. There may be holes in the rim of the sink 5 and corresponding supporting holes in the draining board 1 to take screws or like fastening means. The sink 5 may be supported by embedding its rim 6 in the rim 3 of the aperture and then has a rib 11 also so embedded, Fig. 5, and may have embedded holes 12 for interlocking purposes. In another form, Fig. 4, the rim 6 has a flange which rests on longitudinal and transverse members of a sink cabinet also supporting the draining board 1.
Patent GB-600673-A (GB)
Title: Improvements in or relating to the heating of strip metal by electromagnetic induction
IPC: H05B6/02
Filed: 1945-06-14
Abstract: 600,673. Heating strip metal by electromagnetic induction. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 14, 1945, No. 15104. Convention date, June 27,1944. [Class 39(iii)] A practical embodiment of the apparatus described in Specification 593,195 for heating metal strip comprises two field structures 49 movably mounted within a rectangular frame 25 on rollers 155. Lateral movement of the field structures is made by reversible motors 171 driving a worm-andnut gear within a gear box 175 to displace rods 177 slidably mounted in the wall of the gear box. The field structures are built up of U-shaped laminations 69 assembled into stacks 63 and clamped between a plurality of vertical frame bars 55 by bolts 77. A blower 113 circulates cooling air through ducts to slots 73 forming passages through the laminated poles and discharging between the end turns of the windings on the opposite side of the field structure. Each winding comprises two parallel coils of copper tube connected to bus bars 131, 135 and water tubes 139, 141, so that the water circulates through both coils of each winding in series while the current traverses the two coils of each winding in parallel, but due to the alternate connections to bus bars 131, 135 traverses two adjacent coils in series, producing alternate N. and S. poles vertically within the field structure; the water pipes may therefore be at earth potential.
Patent GB-137480-A (GB)
Title: Improvements in watches
IPC: G04B43/00
Filed: 1919-06-16
Abstract: 137,480. Depollier, C. L. June 16, 1919. Cases, watch. - Insulation from heat is attained by letting into the metal back a of a case a layer of badconducting material such as asbestos cloth b and protecting this by a metal plate c which has a slightly less diameter so as not to make contact with the surrounding rim a<2>. Pins or rivets c<1> fasten the layer and protecting- plate to the case. As a modification, Fig. 4, the protecting-plate c may be disked so as to leave an air layer, and only a ring b<1> of asbestos cloth may be used. As another modification, Fig. 7, the edge of the asbestos layer may be turned over the edge of the protecting-plate, and the rim may be rolled down to hold them in place.
Patent GB-1036794-A (GB)
Title: A hand knitting machine
IPC: D04B39/00
Filed: 1963-04-17
Abstract: Needle selection is achieved on a flat bed machine by a series of serrated plates 6, 7, 8, Figs 1, 6, 8, not shown, positioned above the rear ends of the needles and adapted to be selectively lowered into an operative position.  The cam carriage 24, Fig. 3, (not shown), has at each end a magnet 34 which raises the needles into engagement with the cams 33 as the carriage passes over them. The serrated plates permit and prevent determined needles to be so raised or retained lowered depending on the position of the notches in the plates and consequently pattening is achieved.  The plates are mounted in a frame 10 supported by a base plate 11 on which is secured a cover 20 supporting levers 13, 14, 15 which when depressed lower the plates into their operative position. The frame plate 11 and cam are slidably movable to enable the position of the plates 6, 7, 8 to be shifted in relation to the needles.
Patent GB-1467659-A (GB)
Title: Fan and cowl assembly in a vehicle
IPC: B60K11/00
Filed: 1974-04-05
Abstract: 1467659 Axial-flow fans; cooling IC engines INTERNATIONAL HARVESTER CO 5 April 1974 [5 April 1973] 15162/74 Headings FIB and F1C The subject matter of this Specification is substantially the same as that of Specification 1466795, but the flared portion of the fan cowl is modified, e.g. by providing apertures 55, so as to divide the flow leaving the cowl into distinct axial and radial streams.
Patent GB-515093-A (GB)
Title: Improvements in and relating to gas-tight closures for windows, doors and the like
IPC: E06B5/14
Filed: 1938-05-20
Abstract: 515,093. Fastenings; hinges. S. I. C. A. A. SOC. ANON. May 20, 1938, Nos. 15163 and 15164. Convention dates, May 20, 1937, and June 4, 1937. [Classes 44 and 65 (ii)] [Also in Group X] Doors for resisting gas attacks are provided with a resilient sealing strip 23 on one face adapted to be pressed against the frame by springs 37 acting on the wedge-shaped fastening bolts 34. The pivots are mounted in slots and are also pressed by springs 31 towards the frame. The bolts are preferably operated simultaneously by r a c k 122 and pinions 123 driven by hand - wheel and reduction gearing. Fig. 7. To prevent straining of the packing double jointed hinges comprising an intermediate shackle or a fixed rigid abutment 108. Fig. 7, maybe provided. The door body comprises two metal plates 102 and channel-shaped connecting members 104 and a filler 105 of concrete and iron, Fig. 8. The fastening bolts engage rollers &c. in the spring- controlled eye sockets 113, Fig. 7.
Patent GB-1423947-A (GB)
Title: Holographic lens and liquid crystal image source for head-up  display
IPC: G02B27/00
Filed: 1974-04-05
Abstract: 1423947 Head up display HUGHES AIRCRAFT CO 5 April 1974 [30 April 1973] 15175/74 Heading G2J A multiple element holographic lens array, each element comprising a transparent substrate and a grid of lines thereupon both collimates the display and acts as a combiner. The display is preferably provided by a liquid crystal device.
Patent GB-1462530-A (GB)
Title: Concrete reinforcing bars
IPC: B21B1/16
Filed: 1974-04-05
Abstract: 1462530 Concrete-reinforcing bars STAHLWERKE PEINE-SALZGITTER AG 5 April 1974 [9 April 1973] 15205/74 Heading E1K A concrete reinforcing bar having transverse ribs on opposite curved sides of a core of oval cross-section so as to lie on opposite sides of the major axis of the core has the core and ribs formed in a single operation by arranging that the external surfaces of the ribs lie on a circle of diameter equal to or slightly less than the major axis of the core and that the central portions of the underlying curved surfaces of the core are cylindrically curved and concentric with the external surfaces of the ribs. Preferably, as shown, the central portion 4 of the curved surfaces of the core 1 subtend an angle of 70‹ and have a radius R1 resulting in a nominal rod diameter d, the diameter D of the circle on which the external surfaces of the ribs lie being equal to d x 1.125. The outer portions of the curved surfaces of the core 1 are eccentric and have a radius R2. The major axis 3 is slightly longer than diameter D so that longitudinal ribs 5 are formed.
Patent GB-254861-A (GB)
Title: An improved device for trimming the edges and borders of lawns and the like
IPC: A01G3/06
Filed: 1925-06-12
Abstract: 254,861. Batt, B. A. June 12, 1925. Lawn - mowers ; turf - cutting machines.-A machine for trimming the edges of lawns &c. comprises a pair of shears operated by cam mechanism rotated by propulsion of the machine, and a rotatable disc cutter mounted behind and approximately in line with the shears. The machine runs on two grooved rollers 5, 6 and comprises two side plates and a pivoted handle 25. The movable shear blade 14 is removably pivoted on a support 16 adjustably mounted in guides on the side plate 10. The blade 14 carries a roller 12 engaging in a cam groove 5a in the roller 5. The fixed blade 14a is removably bolted in a recess in the support 16. The rotatable disc 21 is mounted on a spindle 20 removably and adjustably secured in a slot 10<b> in the side plate 10. Lubricators are provided for the rollers. According to the Provisional Specification the disc cutter is secured on the rear roller and a cam wheel on the front roller has tooth-like cam surfaces with grooves between them, a spring being provided to hold a pin on the movable shear blade in engagement in the grooves.
Patent GB-869991-A (GB)
Title: Improvements in or relating to road vehicle suspension systems
Inventor: DICKINSON RONALD SIDNEY
IPC: B60G11/32
Filed: 1958-05-13
Abstract: 869,991. Vehicle spring suspensions. ARMSTRONG PATENTS CO. Ltd. Aug. 12, 1959 [May 13, 1958], No. 15247/58. Addition to 867,514. Class 108(2). A modification of the vehicle suspension system, claimed in the parent Specification, comprises a leaf spring 12 secured to the vehicle frame or chassis at one end by means of a ram displaceable in a hydraulic cylinder rigidly attached to the frame, and at its other end by means of a shackle 14 (Fig. 1) or by means of a second hydraulic ram (Fig. 2) housed in a cylinder 27 pivoted at 28 to the vehicle. frame or chassis. In Tig. 2, the rams may be made of different diameters and are each connected by conduits 25, 29 to a combined shock absorber and control means 24 described in the parent Specification. The conduit 29 is flexible. In the present invention the shock absorber is modified so that when a semi-rotary shaft 23 is displaced from a mean position, liquid is pumped into the ram cylinder thus raising the vehicle height. When the vehicle reaches a predetermined height, a relief valve communicating with the hydraulic conduits 25, 29 is opened to allow the transfer of hydraulic fluid from the hydraulic cylinders 17 and/or 27 to the reservoir of the shock absorber.
Patent GB-127601-A (GB)
Title: Improvements in or relating to Caps for Armour Piercing Projectiles.
Inventor: HADFIELD ROBERT ABBOTT
IPC: F42B12/72
Filed: 1916-10-26
Abstract: 127,601. Hadfield, Sir R. A. Oct. 26, 1916. Annealing.-Relates to the manufacture of caps for armour-piercing projectiles, such caps being made of nickel-chromium-steel or the like, and having varying degrees of stiffness or hardness, as described in Specification 10607/13. The invention consists in the following process, involving a special heat treatment of the cap. After being roughly formed to shape, the cap is heated to a high temperature (e.g. 830‹ C.), is rapidly cooled by complete immersion in a medium such as water or oil, and is then withdrawn either continuously or in stages, so that when fully withdrawn it is well below the temperature of recalescence, but is hot enough to evaporate water; it is then allowed to cool slowly to the atmospheric temperature. The cap is then reheated, but not to so high a temperature as before (e.g. 765‹-785‹ C.), is allowed to cool (e.g. to 400‹ C.), and again re-heated, but not to the same extent as on the first re-heating (e.g. to 600‹ C.). This is followed by sudden cooling in a medium such as water or oil. The cap is then finished to shape, after which process its nose is heated to a high temperature (e.g. 885-900‹ C.), by dipping into molten lead or otherwise, and finally the whole cap is completely immersed in water or oil, point downwards, and allowed to remain there until cold.
Patent GB-199244-A (GB)
Title: Improved means for lubricating leaf-springs
IPC: F16F1/24
Filed: 1922-07-17
Abstract: 199,244. Barrington, W. J. July 17, 1922. Channels in springs.-Lubricant is supplied to longitudinal grooves c and lateral branch grooves c<1> on the contacting faces of the leaves a of a spring from an oil cup d carried at the top of the central bolt b, through internal and external channels formed in and on the bolt. The lower extremities of the external channels are closed by the neck and head of the bolt.
Patent GB-1016528-A (GB)
Title: New telomers and process for their production
IPC: C07C69/83
Filed: 1964-04-14
Abstract: Telomers of the formula <FORM:1016528/C3/1> in which Y and Z stand for the atoms or atomic groups formed by splitting a polychloroalkane with 2 to 3 carbon atoms and 5 to 8 chlorine atoms as telogen, and in which R1 to R4 stand for hydrogen or halogen atoms or organic substituents of molecular weight up to 300, and in which m and n are at least 1 and the sum of the average values of n and (n-1) is not less than 1 and not more than 50, and in which the order of the individual structural members in the chain is optional, are formed by reacting 1 mol of a polychloroalkane with 2 to 3 carbon atoms and 5 to 8 chlorine atoms with n mols of a diallyl phthalate, and in certain cases, also with (m - 1) mols of a monomer CR1R2=CR3R4, preferably in the presence of a catalyst supplying free radicals. When the monomer CR1R2=CR3R4 is used, R1 to R4 are as above and m and n are at least 1 so that the sum of n+(m-1) is not less than 1 and not more than 50.  Preferred telogens are hexachloroethane, pentachloroethane and 1,1,1,2,-3,3,3-heptachloropropane and they may be used in the presence of other conventional telegens, lists of which are given. Lists of monomers CR1R2-CR3R4 and catalysts are given.  In the examples o-diallyl-phthalate is telomerized and in one example the telomerized o-diallyl phthalate is mixed with a polyglycidylether resin, prepared by reacting epichlorohydrin with bis-(4-hydroxyphenyl)dimethylmethane in the presence of alkali, and t.-butylperbenzoate in dimethylphthalate and the mixture is used to impregnate glass fibre fabric.
Patent GB-870733-A (GB)
Title: Fluid density meter
IPC: G01N9/06
Filed: 1958-05-14
Abstract: 870,733. Specific-gravity estimating apparatus. HALLIBURTON CO. May 14, 1958 [Feb. 3, 1958], No. 15506/58. Class 97(3) [Also in Group XXV] In apparatus for measuring the density of a flowing fluid used in well bore operations, such as drilling or fracturing fluids or cement slurries, the fluid is passed from fixed conduit 36, Fig. 3, through flexible pipe 40 to a U-tube 16, returning through flexible pipe 40a to fixed conduit 38, the tube 16 deflecting under the weight of fluid passing therethrough. The deflections of tube 16, which may be balanced by a counterweight, are transmitted through link 20, Fig. 5, to a beam 51 which is pivoted at 52 and damped by dash pot 54. A nut 56, which is adjustable to set the range of the instrument, acts upon a secondary beam 58, pivoted at 60 and, through flapper valve assembly 66, controls the covering and uncovering of an air nozzle 72 connected to an air system 22. A restriction 78 provided in the air system is smaller in diameter than nozzle 72. When the nozzle 72 is covered by flapper valve asembly 66, back pressure builds up in the air system and this, through bellows 62, rebalances the system, the pressure being measured as an indication of the fluid density. The pipe 16 is pivoted by pairs of vertical and horizontal flat steel springs 42, 42a, and 44, 44a. U.S.A. Specification 2,613,530 is referred to. Reference has been directed by the Comptroller to Specification 776,926.
Patent GB-1078547-A (GB)
Title: Semiconductor device
IPC: C23G1/14
Filed: 1966-04-07
Abstract: 1,078,547. Semi-conductor devices. ITT INDUSTRIES Inc. April 7, 1966 [April 7, 1965], No. 15561/66. Heading H1K. The breakdown voltage of a reverse biased PN junction is increased by surrounding it with a surface " guard ring " region defining a second PN junction, the spacing between the junctions being such that in use their space charge regions merge at a voltage less than the breakdown voltage of the first junction. The invention is applied to a planar transistor, Fig. 1 (not shown), in which a P-type base region (2) and an annular P-type guard ring (4) are diffused into an N type collector layer (1) overlying an N<SP>+</SP> layer (5), and an N-type emitter region (3) is diffused into the base region (2). The guard ring may extend deeper into the collector region than does the base region and this may be achieved in the embodiment illustrated in Figs. 3 to 7 (not shown), by first diffusing-in the guard ring and then diffusing-in the base and emitter regions. In an alternative embodiment, Figs. 8 to 11 (not shown), and Fig. 12, the surface of layer 1 is covered with an oxide mask 11 which exposes the sites of the base region 2 and the guard ring 4. The surface is then covered with a photolacquer (16) which is photo-etched to expose the site of guard ring 4. An annular groove (17) is then etched in layer 1, the lacquer is removed and base region 2 and guard ring 4 are diffused-in. The surface is remasked and the emitter region is diffused-in and contacts 7, 8, 6 are applied to the emitter, base and collector regions. A plurality of devices can be manufactured in a single wafer of semi-conductor material which is then subdivided.
Patent GB-205131-A (GB)
Title: Improvements in embossing, stamping, cutting, and like machines
IPC: B44B5/00
Filed: 1922-06-02
Abstract: 205,131. Walpole, G. S., Evans, F. H., and Evans, H. A. June 2, 1922. Embossing ; platen machines ; tripping- arrangements.-A press for embossing, stamping, cutting, &c. consists of a lower platen or work-support c mounted on a pivoted table b which is raised to and from an adjustable upper platen l by means of a cam or eccentric f acting on a hardened plate e connected to the table b by screws. The machine is especially applicable for cutting out designs of coloured paper and impressing the same into cardboard. The punching or embossing dies are placed on the support c which can be drawn out by means of a frame d to enable the cardboard and coloured paper to be positioned correctly above the dies. The table b is then raised by the cam f, and the work is pressed up against an aluminium platen l which is adjustably mounted in a bridge piece k adjustably carried by four columns i carried by the bed-plate a of the machine. The platen l is supported by springs m acting on the heads of bolts secured to the platen, and the pressure can be adjusted by altering the position of the platen by means of a wedge n and movable transversely by means of a screw or by means of a nut o and screw stud p secured to the bridge.
Patent GB-424154-A (GB)
Title: New or improved control mechanism for change-speed gearing
IPC: B62M25/04
Filed: 1934-05-25
Abstract: 424,154. Controlling variable speed gearing. NORTON MOTORS, Ltd., and CARROLL, A., Bracebridge Street, Birming- ham. May 25, 1934, No. 15599. [Class 80 (ii)] In motor-cycle variable-speed gearing, in which successive movements of a hand or foot lever g, in one or other direction, move a selector-arm c in steps, for changing up or down, the lever being spring-returned to a central position after each change, the return-spring comprises a hair-pin member having two limbs l engaging spaced fixed stops m and spaced pins n on an arm p moving with the lever. The arrangement is such that one limb of the spring is held by one of the stops whilst the other limb is being deflected by the lever. The lever g and arm p are both secured to a sleeve h, the spring-limbs being connected by a coil surrounding the sleeve. The arm p pivotally carries a pair of oppositely-acting pawls r, pressed by a spring s on to a ratchet-plate n, secured to a central spindle v, linked to the selector-arm c. A stationary cam-plate x lifts the idle pawl during the return stroke and the ratchet-plate u is located in gear-positions by a spring-plunger passing through the cam-plate x and engaging holes z in the ratchet-plate. The casing e of the mechanism has a detachable cover-plate and is integral with the gear-casing. The spindle v has a pointer o.
Patent GB-450137-A (GB)
Title: Improvements in or relating to means for suppressing harmonics in electric transformers
IPC: H01F27/38
Filed: 1934-12-05
Abstract: 450,137. Transformers. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and AYRES, W. E. M., Siemens Works, Stafford. Dec. 5, 1934, No. 15739/36. Divided out of 448,619. [Classes 38 (ii) and 38 (iv)] An arrangement for suppressing the m<th> harmonic in the magnetizing current of a transformer comprises a phase increasing device having an m-phase secondary 1d-1h and closed delta winding 2 around which the harmonic can circulate connected to the m-phase secondary. The phase increasing means may be incorporated in the main transformer, in which case the secondary 1d-1h would be a tertiary winding on the main core. For application to an existing transformer a separate phase increasing device is used, the primary windings of which are connected in series with the main transformer. Specifications 368,951 and 435,198 are referred to.