baber/WOPTO huggingface dataset:
Patent GB-630124-A (GB)
Title: Improvements in or relating to automatic electric regulating devices
IPC: H02P9/32
Filed: 1938-05-16
Abstract: 630,124. Automatic control systems; regulation. ELIN AKT.-GES. FUR ELEK. TRISCHE INDUSTRIE. May 16, 1938, No. 14606. Convention date, May 14, 1937. [Class 38 (iv)] In an automatic system of the type shown in Fig. 1c for regulating a variable quantity C, wherein a saturable reactor R is provided with an A.C. winding 1 and two D.C. biassing windings 3, 4, the former of which is excited from the A.C. source through rectifiers 5, and acts in opposition to the winding 4, the separate characteristics for the relation between output current of the reactor and the excitation of the two windings 3, 4 are arranged to coincide over the major part of the operating ranges. This arrangement ensures that on any deviation of the quantity to be regulated from a predetermined value, a larger change in output current occurs to facilitate rapid restoration of the quantity to its pre-set value. This action is represented in Fig. 1e, which shows. the current I/excitation E characteristics of the winding 3 for different A.C. supply voltages Ub, Uc, and the straight line characteristics of the counter winding 4 at excitations E4, E<1>4, E<11>4, variations in the voltage U producing abrupt changes in the values, e.g. those corresponding to P, P<11> of current I and facilitating close regulation similar to that obtained by the use of a Tirrell regulator. Characteristics with the linearity of the form shown are produced by the use of condensers in series or parallel with the reactor R, or by ensuring that the leakage reactance of the reactor is small. The Specification describes various applications of the system for regulating the voltages of a generator by field excitation through the intermediary of motor-operated switches, carbonpile resistances or opposed field windings. In addition the invention may be applied to Ward- Leonard systems for regulating speed, and to welding systems for maintaining constant current even in the event of short-circuit. Power-factors may also be controlled and the corresponding field characteristics of machines may be regulated to keep the load current constant; the output of grid-controlled discharge devices also may be controlled. A plurality of reactors may be connected in cascade to control large outputs. Constant output voltages may also be derived from variable or fluctuating supply voltages. Hunting or over-regulation of the system may be prevented by the provision of a short-circuited damping winding on the limb of the core carrying the windings 3, 4; alternatively, hunting may be overcome by a resistance connected in parallel with the windings 3 or 4 or by a current, fed into the winding 4 or a separate winding, proportional to the rate of change of the output current of the reactor.
Patent GB-128207-A (GB)
Title: Improvements in Machines for Sorting Statistical Cards and the like.
Inventor: LASKER WILLIAM WALTER
Filed: 1919-06-10
Abstract: 128,207. Lasker, W. W. June 13, 1918, [Convention date]. Compiling statistics mechanically.-Perforated statistical cards after analysis by the feelers 65 are sorted mechanically into compartments 92 by deflecting-plates 100 arranged above each compartment and actuated by timing cams controlled by the analysing pins. The pile of cards in each compartment is lowered automatically at each addition of a card. The card feeding and analysing devices are of the kind described in the U.S.A. Specifications 33863/15 and 188718/17. The cards are conveyed above the receiving compartments by rotating rollers 102, 104 and for each compartment there is a separate set of deflecting plates 100 fixed to a shaft 99. When a feeler penetrates a card and depresses a pin 85, a plunger pin 168 in a casing 170 mounted near a rotating cam disk 136 adjacent to the corresponding compartment 92 is protruded so as to set one of a. series of cams 140 on the disk into a functioning position. The plunger pin's position is so selected that by the time the card has arrived above the compartment concerned, the cam thus set has moved round and through an arm 156 has raised the corresponding deflecting plates 100 to cause the card to pass below them into the compartment. The cam is thrown out of action immediately after actuating the arm by a pin 158 which trips a detent lever 144 on the eam which is then again held by the detent lever in the inoperative position. The bottom of each compartment is formed by a plate 127 carried by a sleeve 185 slidable on a vertical shaft 188 provided with a spiral thread, for example a wire fixed at its ends to the shaft. The sleeve is fitted with a curved spring 192, a bend in which rests on the thread. At each oscillation of a set of deflectors 100 a slight rotation is conveyed through worm gearing 198, 199 and a ratchet connexion to the shaft 188 which thus causes the sleeve 185 and plate 127 to descend by an amount equal to the thickness of the card being deposited. The spring 192 can be pressed out of engagement with the thread in order to allow the plate to be raised or lowered by hand when required.
Patent GB-217903-A (GB)
Title: Improvements in flaps or extensions for the mud-guards of cycles
IPC: B62J15/04
Filed: 1924-06-17
Abstract: 217,903. Wertheim, E. June 19, 1923, [Convention date]. Mud-guards.-The flexible flaps or extensions for the front and rear mud-guards of cycles are formed of rubber having a resilient transverse strip of metal &c. vulcanized therein. The rubber layers and the strip may also be secured together by metal eyelets, and the upper end of the flap may be provided with holes or slots for an attachment band.
Patent GB-893311-A (GB)
Title: Improvements in or relating to flexible packaging materials in sheet form
Inventor: VEITCH STANLEY JOHN
IPC: D21H19/20
Filed: 1959-04-29
Abstract: 893,311. Laminates; coated fabrics. PROTECTIVE PACKAGING (DEVELOPMENTS) Ltd. March 18, 1960 [April 29, 1959], No. 14674/59. Class 140. A flexible packaging material comprises a sheet of fibrous paper or paperboard, coated on one side with a layer of vinylidene chloride copolymer and on the other side with a non-fibrous film. Suitable non-fibrous films are films of regenerated cellulose, cellulose ethers or esters, rubber hydrochloride, cyclized rubber, polyethylene, polypropylene, polyvinylchloride, polyvinylidene chloride, polyamides, polyesters and polyethers. The vinylidene chloride copolymers may be applied to the paper or paperboard by coating from aqueous dispersions, and may comprise a proportion of a copolymerizable vinyl or substituted vinyl compound such as acrylonitrile, vinyl acetate, alkyl acrylates and methacrylates, styrene, and acrylic acid. The non-fibrous layer may be applied, in some cases, to the paper or paperboard by direct extrusion from a hot melt without the use of a separate adhesive; in other cases the two plies may be united by an adhesive. Suitable adhesives are those based on natural or synthetic rubbers, resins, gums or polymers ; waxes ; bituminous materials; cellulose derivatives ; and especially a plasticized dispersion of polyvinyl acetate. The non-fibrous film may be dyed, printed or provided with a heat-sealing coating. Metal foil or a vacuum-deposited layer of metal may be incorporated within the laminate.
Patent GB-551354-A (GB)
Title: Improvements relating to stands or racks for tubes or other articles
IPC: B65G1/04
Filed: 1941-11-14
Abstract: 551,354. Stands. RICHARDS & ROSS, Ltd., and ROSS, S. C. Nov. 14, 1941, No. 14684. [Classes 52 (ii) and 52 (iii)] A stand for storing metal rods or tubes or other articles in a factory &c. comprises longitudinal base members a formed of bent tubes and transverse members b also of bent tubes welded or otherwise secured to the base members and preferably fitted with gusset plates f to facilitate the orderly arrangement of the stored rods &c. e. The base members provide legs c of a height to permit a part of a hoist truck to be inserted under the stand for transporting it. The gusset plates may be adjustable. The stands may be stacked compactly in a vertical pile with the longitudinal members of one testing on the gusset plates fo the one below.
Patent GB-628905-A (GB)
Title: Electrically driven rotary shears
IPC: B23D36/00
Filed: 1947-06-03
Abstract: 628,905. Shearing. MORGAN CONSTRUCTION CO. June 3, 1947, No. 14689. Convention date, July 19, 1946. [Class 83 (iv)] [Also in Group XXXVII] A rotary flying shear is driven by an electric motor arranged to change speed twice per shear cycle, once accelerating, and once regeneratively decelerating, in a continuous series of cutting cycles.. The shears automatically synchronize with the moving work during cutting and accelerate or slow to an idling speed that is adjustable during operation to vary the length of pieces cut from a billet &c. Four shear motors M drive a pair of cam-guided rotary shears, Fig. 2 (not shown), and together with an A.C.-supplied motor-generator 43 having an amplidyne-fed field 50 comprise a Ward- Leonard system. The amplidyne 51 has a reference field 56 constantly excited, and a control field 55 excited proportionately to the difference between a rectified voltage varied directly with the shear motor speed, and the voltage from a generator 17 connected to the feed rolls, and proportional to the work speed. The roll generator has a variable control field 59 and an anti-hunt field 58 fed through a transformer 60 energized when work and shears are asynchronized. Operation. When a bar closes a flag switch 20 in the roll table, a relay 68 operates contactors 73, 45, energizing the amplidyne and motor fields 55, 56, 39 and closing the main switch 44 to start the motors M and run the shears at an idling speed which may be greater or less than bar speed depending on the length control resistance 64. After the bar travels a fixed length a shear driven cam 97 de-energizes a contactor 87 and puts the roll generator field 59 under control of the cutting resistance 65 which speeds or slows the shears to bar speed for the cut when motor M and roll voltages are equal in field 55. After the cut a further cam 95 changes control of contactor 73 to a different contact 83 and cam 97 energizes 87 to return shears to idling speed. Action of a third cam 96 does not affect the system while the switch 20 is closed. After the bar travels a further given length, depending on 64, which may be altered at any time, cam 97 restarts the sequence. When the tail of the bar opens 20 and deenergizes 68, 64 is increased to a maximum and slows the shears to a slow idling speed. When the shears reach the angular position shown, the cam 96 renders the system dead. During decleration periods, the shear motors M generate and run 43 as a motor, driving its normal motor regeneratively. In a modification the delay cam 97 is replaced by an electronic system and the shears may make one or two intermediate revolutions without cutting.
Patent GB-1284226-A (GB)
Title: Curtain wall structure
Inventor: DAVIES ERIC
IPC: E04B2/96
Filed: 1969-03-20
Abstract: 1284226 Curtain walls CRITTALL-HOPE Ltd 20 March 1970 [20 March 1969] 14715/69 Headings E1R and E1W The curtain wall comprises a framework of galvanised steel hollow box-like framing members 15 with a longitudinal projecting nose 27 on their outward facing side. The vertical mullions are joined end to end by an internal sleeve and extend the height of the building. Transoms 33 are secured to the mullions by means of bolts 43 through an angle bracket 35 welded to the mullion as well as by means of bolts 47 passing through the extended nose of the transom and a tapped bar 37 welded through the nose of the mullion. Field panels or double or single glazing panels are held by resiliently deformable neoprene glazing strips 55, 59 at their edges in the channels formed on either side of the nose by the bolting of a longitudinal web 61 to the nose 27. P.V.C. packing strip 53 is used with thin panels or single glazing. A stainless steel channel section facia member 69 is releasably secured to the web by a snap on or sliding action. Mastic 75 may be used to provide a final weather seal and the framework is fixed to the building structure by means of angle bracket welded to the back of the mullions and bolted to inserts in the building structure.
Patent GB-117744-A (GB)
Title: An Improvement in Pocket Knives.
Inventor: PRIESTMAN EDMUND
IPC: B26B1/10
Filed: 1917-10-11
Abstract: 117,744. Priestman, E. Oct. 11. 1917. Pocket knives. -In a pocketknife handle of the kind comprising metal side plates or scales to which outer scales or coverings are attached, a hollow metal bolster, Fig. 5, made separate from the usual metal scale, is fitted on a reduced end C, Fig. 2, of the outer scale B.
Patent GB-1200324-A (GB)
Title: Improvements relating to wire conveyor belts
Inventor: MORRIS IVOR ST LAWRENCE
IPC: B65G17/06
Filed: 1967-03-31
Abstract: 1,200,324. Endless conveyer belts. GEORGE LANE & SONS Ltd. 29 March, 1968 [31 March, 1967], No. 14727/67. Heading B8A. In wire conveyer belts of the kind comprising a plurality of parallel, transversely extending, substantially rigid rods 11, and a plurality of belt sections each comprising a multiplicity of parallel, longitudinally extending wire links 13 pivotally connected to and between a pair of adjacent rods 11, with the link ends of one belt section alternately spaced between the link ends of the adjoining belt section along a common transverse rod 11, each link 13 comprises a single straight wire having loop ends mounted about respective adjacent transverse rods 11, each looped end having a pair of spaced, parallel straight portions 15, 16 extending longitudinally of the link and receiving a respective transverse rod 11 therebetween as a close fit, so as to constrain the link for relative movement about the rod in the general plane of the belt. The links 13 may be braced by rods 20 which are welded to the link and abut links 12 of side chains which carry the rods 11.
Patent GB-290052-A (GB)
Title: Improvements relating to baths
IPC: A61H33/10
Filed: 1927-06-01
Abstract: 290,052. Broadhead, R. W. June 1, 1927. Baths.-The loss of vapour from a bath during use is prevented by the provision of a cover a adapted to roll up preferably on a spring roller b. The roller is carried by a transverse board b, and a shorter cover e may extend from the board to the head of the bath. Suitable openings for the taps and bather are provided, with or without sealing flaps, and stiffening strips c may also be fitted.
Patent GB-1106785-A (GB)
Title: A gear machine for use as pump or motor
IPC: F04C2/14
Filed: 1965-04-07
Abstract: 1,106,785. Gear-wheel pumps and motors. O. ECKERLE. April 7, 1965 [April 8, 1964], No. 14755/65. Heading F1F. A gear-wheel pump (or motor) comprising a sun wheel 12 Figs. 1 and 2 driven by a shaft 4 and engageable with planet wheels 13 mounted on axles 20 which in turn engage a ring gear 14, includes packing pieces 15 closely fitting between the sun and planet wheels and constituting the sole support for the ring gear which is centred thereby. Discs 16, 17 sealingly clamped between the housing 1 and cover plates 2, 3 and supporting the gears are formed with holes corresponding to the shape of the packing pieces. The packing pieces are formed with recesses 21, 22 opening on the suction side 8 which communicate through bores 23, 24 with the suction side of the pump and recesses 27, 28 opening on the discharge side which communicate through bores 29, 30 with the pressure side of the pump. One of the axles 20 may consist of a tube 35 through which leakage oil collecting in the chamber adjacent the gland 5 is removed. An inlet socket 9 or 9' may serve selectively for connection of a tube 10 or hose 11.
Patent GB-560936-A (GB)
Title: Improvements in or relating to automatic telecommunication exchange systems
IPC: H04Q1/32
Filed: 1942-10-22
Abstract: 560,936. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., and HARTLEY, G. C. Oct. 22, 1942, No. 14804. [Class 40 (iv)] A polarised impulse-responding relay at the incoming end of a junction has one winding connected across the junction while the other winding is biassed through a resistance which is adjusted in accordance with the impedance of the junction and is temporarily reduced for the reception of the first impulse. Impulses are sent in the manner described in Specification 488,764 by intermittently short-circuiting the battery and earth connections at the outgoing end of the junction. As shown, the polarised relay T is in series with a high resistance R3 and a retard coil IL and operates to marking position when the junction is completed through marginal relay D upon the seizure of the junction by an operator at the outgoing end. Relay H1 energizes and closes the loop to the selector which is separated from the junction by a highpass filter comprising series condensers and a shunt inductance. During dialling, relay DR is operative to replace relay D by direct battery and earth connections which are short-circuited by the release of relay HS at each impulse. The impulses are repeated by relay HI to the selector, and in order to prevent shortening of the first impulse a part R1 of the biassing resistance is cut out by the operation of relay I in the selector loop and is replaced when dialling relay C pulls up at the first impulse. Relay DI controls marginal relay D for supervisory signalling by short-circuiting and afterwards replacing the resistance R3 in the loop.
Patent GB-1099862-A (GB)
Title: Method of manufacturing an article and particularly a garment of plastics sheet or film material
IPC: A41F9/00
Filed: 1966-04-04
Abstract: 1,099,862. Reinforcing edges of nen-metallic sheet material. HOLLANDSCHE DRAAD-EN KABELFABRIEK N.V. April 4, 1966 [Nov. 19, 1965], No. 14904/66. Heading B5K. [Also in Division D1] An article, e.g. a garment, of plastics sheet or film material is manufactured so that it can be elastically stretched along one or more areas by welding at least one strip 4 of elastically stretchable plastics material in an elastically stretched state and along at least one of its longitudinal edges to the adjacent plastics material of the article so that when the stretching force is released the material will be pleated or gathered in said area(s). To form baby pants, parts 1, 2 are cut and welded to an under-layer 3 which comes between the legs. The strip 4 is stretched and laid on the parts 1, 2 and the underlayer 3, a flap 5 is turned to overlie the strip 4 and the whole assembly is welded. Finally, the ends of the strip 4 are released.
Patent GB-235245-A (GB)
Title: Improvements in and relating to fuses for shells
IPC: F42C15/22
Filed: 1925-06-09
Abstract: 235,245. Pantoflicek, B. June 9, 1924, [Convention date]. Projectile fuzes.-In order to retard mechanically the action of a fuze having two safety systems of securing balls, one system is released on impact by the inertia of a body 2. Fig. 1, and the other system is released to cause ignition only after the body 2 has rebounded. On impact, the inertia member 2 overcomes a force, such as that of a spring 14, which, after consuming the inertia, reacts by applying a reverse axial or rotary movement to the member 2 to cause the release of the spring striker 8 on to the cap 20. Fig. 1 shows an example of axial rebound of the member 2 which is armed during flight by centrifugal force acting on spring-pressed pins 4. On impact, the forward movement of the member 2 releases balls 12 to allow a rearward rebound movement under the action of the spring 14 to release the balls 10 holding up the striker 8. Fig. 3 shows a construction in which a rotary oscillation of the inertia member 2 occurs under the action of a torsion spring 14 when the spin of the projectile is checked by impact. During the forward part of the oscillation, the balls 39 are released through radial passages and during the rebound the balls 36 holding up the striker escape into recesses 42.
Patent GB-593904-A (GB)
Title: Protective coating of metal with polyhydric alcohol
IPC: C23F11/12
Filed: 1944-08-09
Abstract: Metal surfaces are cleaned to remove pickling acid, oxidation or scale, and then coated with a film of glycerol or glycol.  The metal articles are passed through a pickling tank and two washing tanks; the first washing tank may contain only water or a neutralising solution of an alkali, while the second washing tank contains water, preferably hot, and glycerine or glycol in proportions of 0.25 per cent. to 2 per cent. by volume.  To precipitate suspended or colloidal particles in the latter solution a small proportion of a precipitating agent such as a mixture of aluminium sulphate, sodium carbonate and sodium bicarbonate may be used.ALSO:Metal surfaces are cleaned to remove pickling acid, oxidation or scale, and then coated with a film of glycerol or glycol.  The metal articles are passed through a pickling tank and two washing tanks.  The first washing tank may contain water to remove the pickling acid or a neutralizing solution, and the second contains a solution of water, preferably hot, and glycerine or glycol in proportions of 0.25 per cent to 2 per cent by volume.  The neutralizing solution is preferably maintained at a temperature between 180 DEG  and 212 DEG  F. and may contain caustic alkali to which may be added an ordinary soap and/or a wetting agent.  Suitable wetting agents are soapless soaps, sodium metaphosphate, sodium hexametaphosphate, and sodium salts of sulphated alcohols.  To precipitate suspended or colloidal particles in the neutralizing solution or in the polyhydric alcohol solution, a small proportion of a mixture of aluminium sulphate, sodium carbonate and sodium bicarbonate may be added.
Patent GB-382243-A (GB)
Title: Improvements in or relating to obstetrical forceps
IPC: A61B17/44
Filed: 1932-05-27
Abstract: 382,243. Obstetric forceps. LONNE, F., 33, Weststrasse, Gelsenkirchen, Germany. May 27, 1932, No. 15160. Convention date, May 27, 1931. [Class 81 (ii).] In obstetric forceps comprising a pair of complementary members 4 connectable after application to the foetus by a hinge pin 1 an adjustable stop, comprising. a quick-pitch screw 5, is provided in one handle 3 engaging, by a hemispherical head 7. a recessed plate 8 resiliently mounted, by a spring 15, in the other handle 2. The plate 8 has a stem 9 the end 10 of which projects through the cap 13 of the spring casing and is provided with graduations. The instrument permits, by adjustment of the screw 5, a normal pressure on the fcetal head, and also a limited additional pressure against the action of the spring. The blades of the forceps may be enclosed in rubber sheaths 14, of which the inner walls are the thicker, and which cover the normal apertures provided for the ears of the foetus.
Patent GB-908730-A (GB)
Title: Tandem stranding machine with intermediate tube
IPC: D07B3/04
Filed: 1960-04-29
Abstract: 908,730. Machines for making ropes. BETEILLIGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT. April 29, 1960 [May 2, 1959], No. 15163/60. Class 109. Wire stranding machines are arranged to operate in tandem when connected by a spool-carrying tube. The intermediate tube 3 connecting stranding units 1, 2 may be mounted on pivoted arms for movement into and out of operative connection with the units 1, 2, or a crane may effect this movement. In order to eliminate the necessity for removing the stranding head of the rear unit 1 a telescopic tube 7 may be arranged at the appropriate end of the intermediate tube 3. Six spool carriers 8 may be mounted in the tube 3 so that, when connected between six and twelve spool units, the combined apparatus operates as a twenty-four spool machine. The combined apparatus may be driven by synchronized motors 10, 11, or a single motor.