baber/WOPTO huggingface dataset:
Patent GB-709765-A (GB)
Title: Improvements in and relating to control systems for electric machines
IPC: H02P7/34
Filed: 1952-01-15
Abstract: 709.765. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 15, 1952 [Jan. 16, 1951], No. 1147/52. Class 38(3) [Also in Group XXXV] In an automatic control system for a D.C. hoist motor in which the output of a tachometer generator coupled to the motor is compared with a reference voltage to maintain the motor speed at a desired setting, an auxiliary winding is provided on the tachometer to boost its excitation when a descending load overhauls the motor. The motor 1 has its armature supplied from a Ward-Leonard generator 2, the field of which is energized by an amplidyne exciter 7 in accordance with the amplified difference between the output of the tachometer generator 10 and a reference voltage tapped off a potentiometer 9. The reference voltage is controlled according to the position of the cage in the shaft. In order to detect a power reversal when the load overhauls the motor, a voltage is taken across a shunt 19 in the armature circuit. A reversing switch 18 ganged with the main reversing gear (not shown) and a rectifier 21 ensure that winding 17 on a saturable reactor 14 is only energized by this voltage under overhauling conditions. The resulting increased output of the reactor 14 energizes the auxiliary winding 13 on the tachometer generator in a sense to boost the field of the main winding 11 and so prevent the speed rising above the pre-set value. In a modification, Fig. 2 (not shown) the motor speed is controlled by a regulated reversible booster generator in its field circuit, and the reversing arrangements are such that the current in the motor armature only reverses when the motor is overhauled by the load. Consequently the reversing switch and rectifier are omitted. It is stated that the motor may be supplied from a mercury vapour converter instead of a Ward-Leonard generator.
Patent GB-546789-A (GB)
Title: Improvements relating to hydraulic vehicle brakes
IPC: F16D65/54
Filed: 1941-01-29
Abstract: 546,789. Hydraulic brakes. ROVER CO., Ltd., and IVERSEN, P. A. SCOTT-. Jan. 29, 1941, No. 1186. [Class 103 (i)] A hydraulic vehicle brake, of the kind in which the shoes (or equivalent) are in light contact with the drum (or equivalent) when the brake is idle, is provided with resilient means to overcome the frictional resistance to inward movement of the cylinder pistons on release of the break in order to prevent the setting up of pressure between the shoes and drum, the inward movement being produced by the recovery of the drum from the distortion produced by the brake application. In a number of constructions, such as that of Fig. 1, the resilient means comprises a spring e stretched by the outward movement of a shoe b on brake application between the shoe and a link frictionally connected to the back plate. Other constructions, of which Fig. 9 shows an example, embody a spring e compressed by the outward movement of the piston l and serving to return the piston on release of the brake. A lostmotion connection may be supplied to compensate for expansion of the drum by heat.
Patent GB-606473-A (GB)
Title: Method of making pallets for handling loads
IPC: B65D19/30
Filed: 1946-01-15
Abstract: 606,473. Making load-handling pallets. ARTHUR, O. F. Jan. 15, 1946, No. 1397. Convention date, Sept. 4, 1945. [Class 83 (ii)] [Also in Group XXX] A method of making pallets for handling loads comprises forming a deck unit and a base unit, bending portions of the base unit in a vertical direction to form legs at points spaced longitudinally and transversely of the unit, and connecting the legs to the deck unit. In the embodiments shown, the deck unit is formed of wires 11, 12 welded together and reinforced by rods 13, 14, and the base unit comprising welded rods 16, 18, Fig. 2, is divided by cutting away portions a to form two separate parts each of which has portions bent-up to form legs and brace members 19, the upper ends of which are welded to the deck unit. Plates 21 welded to the rods 18 provide additional supporting surfaces.
Patent GB-966520-A (GB)
Title: Improvements relating to electromagnetic contactors
Inventor: KIRCHDORFER JOSEF
IPC: H01H50/64
Filed: 1960-01-15
Abstract: 966,520. Electromagnetic switches. SPRECHER & SCHUH Ltd. Jan. 16, 1961 [Jan. 15, 1960], No. 1477/60. Heading H2B. The electromagnetic structure 12, 14, 15 and contacts 3, 4, 7 are mounted side-by-side on a supporting structure and are spaced from the rear face 2 of the structure. An armature 15 reciprocating in solenoid 12 is connected to a contact carriage 8 carrying spring mounted contact bridges 7 by a lever 18 whose pivot 19 is nearer the contacts than the armature. The yoke 14 of the electromagnetic structure is carried on a cover which is secured to the supporting structure by spring clips. Arc suppressing and cooling means may be provided adjacent the contacts.
Patent GB-298016-A (GB)
Title: Improvements in balanced crankshafts of the six-throw four-bearing type
IPC: F16C3/20
Filed: 1928-01-16
Abstract: 298,016. Marks, E. C. R., (Wyman- Gordon Co.). Jan. 16, 1928. Balancing moving parts by weights.-A six throw four bearing crank shaft has (i) two straight and one curved crank webs 40, 42, 41 or 45, 47, 46 between each end bearing part 20 or 21 and an intermediate bearing 22 or 23, and (ii) two straight webs 43, 44 between the intermediate bearings. The shaft is balanced statically and dynamically by four counterweights 50, 51, 52, 53 bolted on to or forged with the end webs 40, 47 and the intermediate webs 43, 44. The centre line through a counterweight makes an angle of not less than 10‹ or more than 30‹ with the centre line of the web to which it is attached; as shown the angle is 15‹. The centre counterweights are at 180‹ to the end counterweights ; they may be designed to balance the forces due to the connecting-rod big-ends.
Patent GB-627738-A (GB)
Title: Improvements in or relating to vehicle-engine mountings
IPC: B60K5/12
Filed: 1947-01-16
Abstract: 627,738. Resilient engine mountings. SOC. TECHNICO-COMMERCIALE DE CONSTRUCTIONS AUTOMOBILES. Jan. 16, 1947, No. 1497. Convention date, Sept. 5, 1946. [Class 79 (iii)] In a resilient mounting device for an engine in which connecting rods are arranged between the engine and the vehicle frame, at least two of the rods are vertical and suspend the engine while others are horizontal, at least one of the latter extending longitudinally of the vehicle and at least one transversely, and at least one of the rods is arranged to absorb torque reactions of the engine. As shown applied to a transverse engine mounted in the rear of the vehicle, two connecting rods 1, 2 are connected by dampers 5, 6 to the vehicle frame, are pivoted at their other ends to the engine M and are arranged in a vertical plane containing the centre of gravity G of the engine. Two rods 7, 8 are connected by links 9, 10 to the engine at or near the zone of the axis of gyration X, X' of the engine, extend longitudinally of the vehicle in a horizontal plane as near as possible to the centre of gravity G, and are connected at 11, 12 to the vehicle. A further horizontal rod 15, linked to the engine at 16 and connected to the vehicle at 17, is intended to absorb transverse stresses whilst the direction of a rod 19 secured to the engine at 21 and to the vehicle frame at 22 is chosen to absorb torque reaction and so that the oscillatory period of the engine mounting device cannot come into phase with the periods of vibration of the engine during its operation. The rods 7, 8, 15, 19 are each formed in two parts connected by a resilient element 13, 14, 18, 20 respectively to absorb longitudinal stresses in the rods.
Patent GB-1000561-A (GB)
Title: Improvements in fixation devices comprising a screw and a ring
IPC: F16B43/00
Filed: 1963-01-14
Abstract: 1,000,561. Bolts; washers; locking bolts; securing washers against loss. P. LAUNAY. Jan. 14, 1963 [Jan. 7, 1962], No. 1614/63. Heading F2H. In an assembly comprising a screw 8 and ring 4 slipped thereon, the ring is sufficiently thin to undergo resilient deformation and is provided with an oblong central hole, the smallest diameter of which is slightly smaller than the external diameter of the screw. The ring may be made of nylon " Delrin " (Registered Trade Mark). As shown, the ring is given a conical shape and is mounted on a screw having a conical head. The oblong central hole 5 is obtained by providing flat faces 6 on a circular hole to limit the width of the hole in the direction x-x. The thickness of the flat faces is slightly greater than that of the body of the ring. In a modification, the ring is flat and thinner towards the outside, the screw having a head with a bearing surface substantially at right angles to the direction of the screw shank.
Patent GB-804129-A (GB)
Title: Improved ice block release apparatus
IPC: F25C1/24
Filed: 1957-01-16
Abstract: 804,129. Ice-making. GENERAL MOTORS CORPORATION. Jan. 16, 1957 [Jan. 18, 1956], No. 1634/57. Addition to 796,587. Class 29 Relates to ice block release apparatus of the kind in which a domestic ice tray assembly is flexed and suddenly unflexed while supported in an inverted position. According to the invention one end of the tray fits into a pivotally mounted socket element 76 which may be swung about its pivotal mounting 77 to effect the flexing of the assembly. The ice tray is inverted and slid into channel members 86 fixed to side walls of the apparatus. A frame member 91 holds the outer end of the tray fixed rotationally while the inner end fits into the socket element 76. At the opposite end of the socket element to the pivot 77 is a stud 82 carrying a roller 81. This is contacted by a cam member 64 pivoted to an arm 62 of a bell-crank lever 57 pivoted at 59 to a member 58, which also carries the pivot 77, depending from the roof of the apparatus. The other arm of bell-crank 57 is linked by member 52, 39, 48 to a lever 38 pivoted to a side wall 36 of the apparatus. Pulling lever 41 causes cam 64 to contact roller 81 and turn the member 76 about the pivot 77, flexing the tray, The cam then over-rides the roller 81, releasing the socket member, and the tray is unflexed. The ice blocks fall into a container 58 suspended from the channel members 86.
Patent GB-1192811-A (GB)
Title: Improvements relating to the Manufacture of Integrated Circuit Assemblies
Inventor: BRISLAND WALTER JOSEPH
IPC: H01L21/00
Filed: 1967-01-11
Abstract: 1,192,811. Automated fllip-chip bonding. PLESSEY CO. Ltd. 11 Jan., 1968 [11 Jan., 1967], No. 1641/67. Heading H1K. The automatic ultrasonic flip-chip bonder shown has a set of stacks or magazines 7, 8, 9 of different types of rectangular clean-cut integrated circuit chips carried by an arm 6 which is moved to present a desired magazine to the probe 4 of the bonder. The probe is lowered to pick up a chip which fits with desired orientation into a frusto-conical cavity at the end of a vacuum duct on the probe. The probe is raised, the magazine arm removed, and a test arm 10 positioned so that the chip may be lowered on to it. After removal of the test arm (and provided the chip is satisfactory), the selected substrate 3 is brought under the probe by a co-ordinate table 1 and bonding is effected. A further electrical test device (not shown) may be used to check that the bonds are satisfactory. In a suggested variant the substrates are carried by a fixed part and the bonding probe is carried by the co-ordinate table.
Patent GB-1063474-A (GB)
Title: Polyurethane foam
Inventor: BRUCE DAVID BRECKINRIDGE
IPC: C08J9/42
Filed: 1963-01-15
Abstract: A porous polyurethane foam contains a deposit of regenerated cellulose within the pores.  The foam is saturated with a viscose, which is then expressed from the foam until its pores are not visibly blocked, with the viscose, then it is impregnated with a dilute acid which results in substantial regeneration of the cellulose, prior to the washing out of the soluble by-products preferably with water.
Patent GB-675319-A (GB)
Title: Improvements in or relating to trailers for vehicles
Inventor: WEST WILFRED WILLIAM
IPC: B62D63/06
Filed: 1950-01-23
Abstract: 675,319. Adjusting wheel base; tipping vehicles. WEST (BURGESS HILL), Ltd. Dec. 12, 1950 [Jan. 23, 1950; Feb. 21, 1950], Nos. 1775/50 and 4485/50. Classes 108(i) and 108(ii) In a trailer supported on a pair of wheels and adapted to be connected to a vehicle by means of a drawbar, the body of the trailer is provided with a pair of parallel longitudinal members arranged to extend in a longitudinal direction of the trailer and bear upon a corresponding pair of parallel longitudinal members fixed relatively to the wheels and means are provided operable to permit the position of the wheels' to be varied relatively to the body of the trailer in the longitudinal direction of the trailer. In the arrangement shown in Fig. 2, a wheel carriage 4 is provided at each side at each end thereof, with a pair of angle plates 7, 9 which bear against angle irons 11, 12 mounted on longitudinal rails 5 on the underside of the trailer body. A hole 7a or 9a in each angle plate 7 and 9 respectively, registers with one of a series of holes in each angle iron 11 and 12 and in the registering position, the carriage is locked to the trailer body by spring loaded locking members 13. In a modification, Fig. 5, the wheel carriage 4 is provided with side rails 6 which slidably engage similar rails 5 secured to the underside of the trailer body. A spring-loaded bolt 8 extends through each rail 5 and is adapted to engage one of a series of holes 14 in each rail 6. The bolts are disengaged from the rails 6 to facilitate relative movement between the wheels and body, by means of a centrally pivoted lever 10 and links 12. In the arrangement shown in Fig. 8, in whcih the trailer is adapted to tilt about the axis of the wheels, when braked by rearward movement of a drawbar 3, the angle of tilt of the trailer it determined by a pin 20 which extends through one of a series of holes 21 in a lever 18 pivotally connected to the drawbar and extending through an arcuate slot in a bracket 19 fixed to the trailer body.
Patent GB-1166433-A (GB)
Title: Isocyanate Solutions Suitable as Adhesives
Inventor: KLAUKE ERICH
IPC: C08G18/77
Filed: 1968-01-12
Abstract: 1,166,433. Isocyanate adhesive solutions. FARBENFABRIKEN BAYER A.G. 12 Jan., 1968 [12 Jan., 1967], No. 1786/68. Headings C3P, C3Q and C3R. Isocyanate adhesive solutions comprise an adhesive and a polyisocyanate in a solvent, the polyisocyanate comprising a polyisocyanate of the formula wherein A represents a phenylene nucleus or two phenylene nuclei which are linked together by a linear or branched alkylene group and may be substituted by chlorine atoms, alkyl groups or nitro groups, and R 1 , R 2  and R 3  are hydrogen or the same or different ring substituents. The adhesive may be a natural or synthetic rubber and a polyether or polyester or linear polyurethanes derived therefrom. Suitable solvents are methylene chloride, trichloroethylene, ethyl acetate and methyl ethyl ketone. Several tetraisocyanates are listed, those specifically exemplified being 1,3-di-(2,4-diisocyanato-phenoxy) - benzene, 4,4<SP>1</SP> - di - (2,4 - diisocyanatophenoxy)-diphenyl dimethylmethane and 4,41- di - (2,4 - diisocyanatophenoxy)-diphenylmethane. Exemplified adhesives are pale crepe rubber, chlorinated rubber, chloroprene rubber, nitrile rubber, and a linear polyurethane derived from a polyester of adipic acid and ethylene glycol and toluene diisocyanate.
Patent GB-137611-A (GB)
Title: Improvements in safety appliances for locking the gates of lifts or hoists
IPC: B66B13/16
Filed: 1919-01-24
Abstract: 137,611. English Sewing Cotton Co., and Bennett, A. Jan. 24, 1919. Lift doors, locking and unlocking.-The clamping-device A for locking the handling-rope of a lift is combined with a pivoted bar D arranged across the opening into the lift well, which prevents the release of the clamping-device when the gate is open. The release of the clamping- device when the gate is closed also effects the locking of the gate. The gate-locking bolt C is attached to a plate c guided in its backward and forward movements by bars C<1> moving in bearings c<1>. The handle a of the clamping-device A is connected to a sliding-bar B, the end of which engages the plate c. The end d' of the bar D to which the plate E is attached is cranked, so that the bar is rocked to raise the plate E when the rollers f on the gate come on to this part of the bar during the closing movement. When the plate E is raised out of the path of the bolt C, it also uncovers the hole g in a plate G on the edge of the gate, and, if the clamping-device A is then actuated to free the rope, the bolt C moves into the hole g and locks the gate. The clamping-device A may be constructed as described in Specifications 4982/14 or 137,610, [Class 78 (ii). Lifting &c. not otherwise provided for].
Patent GB-509705-A (GB)
Title: Method of splicing the ends of films
IPC: B32B27/00
Filed: 1938-01-19
Abstract: 509,705. Sound-records. I. G. FARBENINDUSTRIE AKT.-GES. Jan. 19, 1938, No. 1793. Convention date, Feb. 12, 1937. [Class 40 (ii)] [Also in Group XX] For splicing the ends of films bearing mechanical sound-records, which films, under the influence of a solvent, will soften and flow when heated and pressed, a solvent is smeared on one face of each of the ends to be spliced, these faces are then laid together and the splice thus made is pressed and at the same time heated. The splice may be heated and pressed by laying it between thin glass plates which are then pressed together by heated pieces of metal.
Patent GB-118226-A (GB)
Title: Apparatus for Raising Sunken Vessels, and Floating Stranded Vessels.
Inventor: BECKWITH WALTER CHURCH
IPC: B63C7/04
Filed: 1918-02-01
Abstract: 118,226. Beckwith, W. C. Feb. 1, 1918. Sunken and stranded ships, raising and moving.-Means for raising sunken ships or floating stranded ships comprise a pair of elongated cylindrical pontoons 1 with shafts 2 supporting a superstructure 3 which holds the pontoons in spaced relation, drums 11 on the shaft, and means on the superstructure for driving the drums. The driving means comprise reversible steam motors 4 acting through worm gearing 6, 7 and chain gearing 8. Pawls 13 controlled by levers 30 engage ratchet wheels to prevent unwinding of the lifting-cables 15. A central opening in the superstructure gives access to the water. Two or more pairs of pontoons arranged end to end may be provided, and the pontoons may be fixed to and rotate with the drums. As used for floating stranded ships, the pontoons are divided and the drums placed centrally on their shafts, one of the cables being fixed to the ship and the other to an anchor.
Patent GB-269669-A (GB)
Title: Improvements relating to the lubrication of ball or roller or like bearings
IPC: F16C33/66
Filed: 1926-01-22
Abstract: 269,669. Shaw, J. L. Jan. 22, 1926. By semi-solid lubricants: preventing congelation.-In a ball or roller bearing in which grease is packed within the housing b, a perforated plate g is caused to move axially to anrl fro within the housing to break down any banked-up or congealed grease and bring it within the range of the bearing members. The plate is carried on the end of a rod k mounted in a member i by balls j, the members i being screwed in a plug k mounfed in the end cap c of the housing. By screwing the member into and out of the plug k, the disc g is moved to and fro in the housing. A similar disc g<1> arranged in the other end of the housing is of annular form, being carried by two or more rods mounted in screwed members. The device may be operated by hand or by automatic means.
Patent GB-1379092-A (GB)
Title: Floater containing electronic equipment and consisting of a foam body with an outer skin
IPC: B29C44/00
Filed: 1972-01-14
Abstract: 1379092 Moulding plastic substances SMIT NIJMEGEN ELECTROTECHNISCHE FABRIEKEN NV 14 Jan 1972 [2 Feb 1971] 1957/72 Heading B5A [Also in Division B7] Electronic measuring, controlling and/or transmitting equipment is protected and made buoyant by a surrounding body of closed cell polyurethane foam whose apparent density is greater than 200 kg./m.<SP>3</SP> The polyurethane foam is in turn protected by a surrounding skin of polyethylene whose density lies between 0À90 and 0À95 gms./em.<SP>3</SP> The polyurethane may be foamed in situ around the electronic equipment, after which the polyethylene skin may be injection moulded in situ. Alternatively, premoulded pieces of foam, man be sealed to each other and to the equipment with an epoxy or polyurethane resin adhesive, after which, premoulded pieces of polyethylene may be streteched over the foam and joined by adhesive or by heat sealing. The skin may carry stabilizing fins and an attachment for a cable so that the device can be moored beneath the water surface and keep its position in a current. Preferred dimensions and materials are detailed in the Specification.
Patent GB-353401-A (GB)
Title: Apparatus for preventing accidents on public highways, especially at cross roads, side turnings, level crossings and the like
IPC: G08B5/00
Filed: 1930-01-20
Abstract: 353,401. Mirrors for street crossings. MICHEL, D. J. G., 119, Rue de Diest, Louvain, Belgium. Jan. 20, 1930, Neo. 1973. Convention date, April 17, 1929. Void [Published under Sect. 91 of the Acts]. [Class 52 (iv).] Mirrors m, n are mounted on a post at street corners and crossings. The post may carry a lamp E and direction boards a.
Patent GB-1078622-A (GB)
Title: Improvements in or relating to upright members and supports therefor
Inventor: ADLAM FRANCIS CHARLES
IPC: E01F9/018
Filed: 1965-01-15
Abstract: 1,078,622. Supports for posts. ALUMINIUM ALLOY FABRICATIONS Ltd. Jan. 10, 1966 [Jan. 15, 1965], No. 2001/65. Heading E1B. The lower end of a post 11 of I, channel or rectangular-box section is connected to a base plate 12 by horizontal splines (22), Figs. 2, 4 or 5 (not shown), engaging corresponding splines on integral raised portions (15) of the base plate, the splined connection being secured either by adhesive or by peening over the ends of the splines. The post 11 may support a hand rail, or a crash barrier comprising vertical and horizontal bars. The post and base plate may be of aluminium.
Patent GB-1531988-A (GB)
Title: Methods of fabricating gaseous discharge display panels
IPC: H01J9/26
Filed: 1977-01-19
Abstract: 1531988 Sealing preform for gas discharge display panels INTERNATIONAL BUSINESS MACHINES CORP 19 Jan 1977 [15 March 1976] 02051/77 Heading C1M A devitrifiable sealing glass frit is mixed with an organic binder (e.g. nitro cellulose) in a solvent (e.g. amyl acetate) to form a slurry which is extruded on to a substrate, the extrudate rod is airdried, placed on a flat glass plate and sintered to provide a preform for sealing a gas discharge panel. The initial substrate may be polyethylene terephthalate coated to avoid wetting of the rod to the substrate.
Patent GB-368914-A (GB)
Title: Improved method of decorating metal surfaces
IPC: B44C1/26
Filed: 1931-01-21
Abstract: 368,914. Ornamenting. TAKEDA, K., 7, 4-Chome Tosaboridori, Nishiku, Osaka, Japan. Jan. 21, 1931, No. 2059. Drawings to Specification. [Class 93.] In a method of ornamenting metal surfaces, wherein a pattern plate having perforations to form the design is placed upon the surface and inlaid by pressure, the pressure is applied by placing the pattern plate between an anvil and the metal surface and the latter is pressed by a spatula, disc, or roller, or by hammering, while the whole is revolving. Alternatively, the anvil may be struck. The pattern plate consists of metal or celluloid, the perforations therein being formed by etching or otherwise, and, when pressed into the surface to be inlaid, the latter is locally displaced to fill the perforations, thereby firmly securing the pattern plate in position.