baber/WOPTO huggingface dataset:
Patent GB-1293649-A (GB)
Title: Latches for switch mechanisms
Inventor: LAWRENCE JOHN LEONARD ALBERT
IPC: H01H13/74
Filed: 1970-06-08
Abstract: 1293649 Mechanical switches; retractive switches; latching and unlatching switches POST OFFICE 26 May 1971 [8 June 1970] 27536/70 Heading H1N An electrical switch mechanism includes at least two operating members 1A, 1B (pushbuttons as shown), latched in the operated position (down) by latch plate 15 having at least two latching surfaces 1 : 9 (on the end of extensions 18A, 18B) (engaging projections 6 on pushbuttons 1A, 1B), latch plate 15 also including at least one adjustment surface 20 co-operating with an adjustment surface 21 in a relatively fixed member 13 (plate 15 being held to plate 13 by screws 16) so that a lever (a screwdriver) can engage surfaces 20, 21 to move plate 15 relative to member 13 (when screws 16 are slackened) to adjust the positions of latching surfaces 19 relative to operating members 1A, 1B. Spring 14 urges plate 15 against projections 6. The push-buttons have retractive springs 8. Depression of each pushbutton actuates its associated contacts 2 through cam 9 and cam follower 10. Depression of one push-button frees an already latched push-button. Other (non-latchable) push-buttons may be provided, these may act on plate 13 to free latched pushbuttons. Projections 18A, 18B may be of different lengths. The switch mechanism is intended for use in a telephone and a further projection 18C, Fig. 4 (not shown), may be operated by the cradle to unlatch any latched' push-buttons. Plate 15 has coarse adjustment, so that it can be moved to a position where it does not latch any push-buttons, Fig. 3 (not shown), or fine adjustment, using surfaces 20, 21, so that, for example, operation of push-button 1B when button 1A is latched does not release button 1A (and hence its contacts 2) until button 1B has been sufficiently depressed to operate its associated contacts.
Patent GB-833974-A (GB)
Title: Improvements in or relating to explosive devices
IPC: F42D1/04
Filed: 1958-08-27
Abstract: 833,974. Blasting and assemblies therefor. DU FONT DE NEMOURS & CO., E. I. Aug. 27, 1958 [Sept. 10, 1957], No. 27539/58. Classes 9(1) and 68(1) An explosive relay assembly comprises alength of sheathed detonating fuze cord on which is helically wound a similar fuze cord. Preferably the core 5 contains from 0.0021 to 0.021 grams per cm. of a crystalline, cap-sensitive, high-velocity detonating explosive such as PETN, RDX, TNT, lead azide and tetryl. The sheath 4 is preferably a ductile metal such as lead, tin, copper or aluminium. Rubber or fabric covered cord may also be used. The combined mass of the sheathing per unit length of the assembly is 11 to 120 times. the mass per unit length of either explosive core. It is stated that when the helical cord is detonated, the inner cord 3 will not detonate in the direction opposed to that in which the detonation wave travels in the helix. When there are no gaps between the turns of the helix, detonation of cord 3 does not initiate the helix, which is blown apart and rendered inoperative. The assembly may be made by doubling a cord on itself. By varying the number of turns per unit length and the arrangement of the turns, the effects may be varied. The assembly may be protected by a coating of cement. Fig. 12 shows a blasting lay-out in which detonating cords 8 leading from borehole charges 6 are initiated by a trunk detonating cord 9 helically wound around the end of each cord 8. The cord 9 is connected to an initiator 11. A "stop-go" device 12, Fig. 13, may be incorporated in the trunk line so that detonation can only travel away from the initiator 11.
Patent GB-645366-A (GB)
Title: Improvements in or relating to frequency modulated radio altimeters
Inventor: SHARPE BERNARD ANSELM
IPC: G01S1/02
Filed: 1947-10-15
Abstract: 645,366. Radiolocation. MINISTER OF SUPPLY. Oct. 15, 1947, No. 27667. Drawings to Specification. [Class 40 (vii)] In a frequency modulated radio altimeter the need for range changing by the pilot is eliminated by modulating the frequency over two or more ranges in succession cyclically and switching the beat frequency signals (representative of height) to respective indicating means for each of said ranges. This may be performed by a rotating condenser having two diametrically opposed sets of rotor vanes of different areas with a ganged commutator for switching the beat frequency signals to the respective indicators. Masks may be operated by a relay to cover the unwanted display at any given altitude. To reduce the complexity of the display and the space required on the instrument panel the indicators may be concentrically pivoted pointers readable against respective concentric scales on a common dial, the unwanted indication being obscured by a mask arranged as in the Figure (not shown).
Patent GB-774765-A (GB)
Title: Epoxidized copolymers
IPC: C08F8/08
Filed: 1955-09-29
Abstract: A copolymer of a conjugated diene and an ethylenic monomer containing the CH2=CH-group is epoxidized in the liquid phase with an aliphatic peracid containing from 1 to 10 carbon atoms.  Specified copolymers are butadienestyrene, butadiene - acrylonitrile, isoprenestyrene, isoprene - isobutylene, isopreneacrylonitrile - styrene and cyclopentadienemethylstyrene-styrene and peracetic acid is the specified peracid.  The reaction may take place in aqueous emulsion, in the presence of a solvent, e.g. benzene, toluene, xylene and chloroform or, if the copolymer is liquid, in the absence of solvent or water.
Patent GB-923071-A (GB)
Title: Change-speed transmission
IPC: F16H15/52
Filed: 1959-08-13
Abstract: 923,071. Variable speed gear. NIKEX NEHEZIPARI KULKERESKEDELMI VALLALAT. Aug. 13, 1959 [Aug. 13, 1958], No. 27734/59. Class 80 (2). A two-element epicyclic friction gear for motor vehicles or machine tools comprises a planetary friction disc 5 carried by a variably eccentric ring 4 on a driving shaft 2, which disc 5 rolls around a stationary two-part ring 6 and drives the output shaft 3 through a shaft 7 which is univerally coupled to the disc 5 and shaft 3. The ring 4 has a rectangular bore through which a square part of the shaft 2 passes allowing radio movement of the ring in one plane, and the ring is biased towards an eccentric position by a spring 18. Ratio changes are effected by turning a lever 9 fast with one part of the ring 6, causing axial movement of the latter and increasing or decreasing the gap between the two parts of the ring 6, and hence the eccentricity and effective diameter of the disc 5 which is pressed into the gap by the spring 18 or by hydraulic or electromagnetic means.
Patent GB-1191195-A (GB)
Title: Method of and apparatus for Testing for Cracks in Glassware Articles
IPC: G01N21/90
Filed: 1968-06-11
Abstract: 1,191,195. Detecting flaws in glass ware. EMHART ZURICH S.A. June 11, 1968 [June 15, 1967], No.27790/68. Heading G1A. In a method and apparatus for detecting defects in glass ware, a beam of light is directed on to an article moving relatively to the beam through a scanning zone, and light emerging from two separate angle sectors is detected to produce signals whereby cracks can be distinguished from other faults. Light may be guided to the zone, and emergent light from the zone by flexible fibre glass guides, and a logic circuit is arranged to control acceptance or rejection of the articles according to whether the incident light is totally reflected by a crack on to one detector, or is directed by some other type of flaw on to both detectors. An "article-present-in-zone" signal is applied to the circuit and is used after delay to reset the circuit. Successive articles are delivered to the zone and are rotated at least once.
Patent GB-916818-A (GB)
Title: Weighing apparatus
Inventor: HALLAM THOMAS BERTRAM
IPC: B07C5/16
Filed: 1958-08-29
Abstract: 916,818. Check weighing apparatus. SPERRY GYROSCOPE CO. Ltd. Aug. 21, 1959 [Aug. 29, 1958], No. 27838/58. Class 143. In a check weighing apparatus, a plurality of articles, such as cans 2, carried in file on a conveyer belt 1 are simultaneously pushed laterally therefrom on to a corresponding plurality of weighing heads W by a battery of rams 5, the articles thus fed to the weighing heads displacing the articles previously fed thereto on to a " rejection " delivery belt 7 from which those articles determined by the weighing heads to be above a desired weight are subsequently guided by means G on to an " acceptance delivery " belt 8. As shown a battery of four weighing heads W surmounted by a common stripper plate are mounted beside the conveyer belt 1 with four rams 5 1  . . . 5 4  mounted on a carriage 12, 13 disposed on the opposite side of the belt, the heads W being spaced so that the first, third, seventh and ninth cans 2 in the row are fed thereto between guides 6 by the rams 5. Lateral guides 4 ensure a single row of cans on the belt 1 at the weighing station, the end faces of the rams 5 serving to augment the guides 4 on the ram side of the belt 1. To ensure that the rams 5 will not operate unless there is a full complement of cans 2 at the weighing station, the carriage 12, 13 is normally latched in its retracted position by two latches 21 each controlled by push rods 24, 24<SP>1</SP> disposed axially of a pair (53, 54) of the four rams and projecting through the end faces thereof to be depressed on contact with a can. One of the push rods, 24, operates, through a spring link, a crank 25 to release the latch 21, while the other push rod 24<SP>1</SP> controls a stop 26 which prevents operation of the crank 25 until pushed out of the way thereof by the presence of can adjacent the associated ram (54). When the latches 21 are tripped the carriage 12, 13 is pulled forward by a spring, acting on a lever 17 linked to the carriage, until a cam follower 19 on the lever abuts a plate cam 11 on a driven cam-shaft 10. As the carriage moves forward, a ramp thereon pivots an arm 38 to cause guide members 33 normally closing the entrances between the guides 6, to swing clear of the cams 2. Simultaneously movement of the lever 17 actuates a switch 30 to release a catch 29 from the path of a stripper plate support lever 28, whereupon the lever 28, under the control of a second plate cam on the shaft 10, is first moved to lower the stripper plate, through rods 27, and thereby permit a weighing operation by each head W on the can at present resting thereon. Subsequently the plate cam moves the lever 28 to restore the stripper plate in time to support the weighed cans ready for their displacement on to the rejection belt 7 by the cans now being fed to the weighing heads by the rams 5. On retraction of the rams by the cam 11, the carriage is again latched back until released by the push rods 24, 24<SP>1</SP>.
Patent GB-1390225-A (GB)
Title: Vehicle control system
IPC: B61L25/02
Filed: 1972-06-14
Abstract: 1390225 Train control system BRITISH RAILWAYS BOARD 11 June 1973 [14 June 1972] 27869/72 Heading B7H In a train control system interrogator units 19, 21 and 20, 22 at the front and rear of a train co-operate with transponder units 18 spaced along the track 11 to supply location information to the duplicated control units 17 on the train which also receive vehicle speed information from tachometers 23. After comparison in unit 24 this information plus train identity is transmitted on request to a central control station 16 via duplicated transmit-receive paths including train carried antennae 14, 15 and track side loops 12, 13. At the central office a computer 27 receives the information on train identity, speed, position and direction of motion and additional information from store 28, keyboard 29 and points and switches setting information unit 25 and then issues appropriate command instructions to the trains via the duplicate transmission paths. The operation of the computer 27 is checked by a second computer 31 which is also linked to a visual display 32 of the system operation. The computer can be combined with a strategic control centre, Fig. 6 (not shown) including means for setting the points and switches of the system and for modifying the running of individual trains.
Patent GB-519779-A (GB)
Title: Improvements in or relating to refrigerated shop counters
IPC: A47F3/04
Filed: 1938-09-24
Abstract: 519,779. Refrigerators. OLIN, G. Sept. 24, 1938, No. 27884. Convention date, Sept. 24, 1937. [Class 29] A shop counter with sloping glass front 1 is cooled by refrigerating elements in the form of vertical hollow plates 10, which divide the counter lengthwise into separate compartments fitted with trays 16 supported by runners mounted on the cooling plates. These plates may be formed of two stainless steel sheets with pressed ribs 8 providing a sinuous refrigerant passage, and a part of such passage extending beneath the counter top may be controlled by a damper. A platform 17 for customers' parcels and glass shelves 15 above the counter may be provided. The backs of the trays may form a closure for the back wall, as set forth in Specifications 519,780, [Group XVIII], and this wall is upwardly and rearwardly inclined as set forth in Specification 502,785, [Group XVIII]. The refrigerating elements may be of triangular or trapezoidal form and be connected, by vertical branches at their lower parts to refrigerating mains, so that the elements support the counter structure, or they may be of parallelogram shape and connected to mains at the bottom of the front wall.
Patent GB-363405-A (GB)
Title: An improved rail contact for use in connection with railway signalling
IPC: B61L1/04
Filed: 1930-09-18
Abstract: 363,405. Treadle contact apparatus for railway signalling. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., Caxton House, Westminster. -(Parsons, J; Rosario, Santa Fe, Argentine). Sept. 18, 1930, No. 27899. [Class 105.] A pivoted rail treadle is adapted to actuate sets of electrical contacts in succession in an order of actuation dependent on the direction of movement of the train. As shown in Fig. 1, a treadle 10 with a curved surface is pivoted to a plunger 11, 20 of a spring dashpot 19 and is biased by a spring 23 to the position shown in which electrical contacts 27, 28 are closed; electrical contact members 29, 30 provided on the dashpot plunger 11, 20 and on a guide 15 therefor are open. A train moving from right to left will first tilt the treadle 10 to open the contacts 27, 28 and shortly afterwards will depress the treadle and plunger to close the contacts 29, 30 and will also restore the contacts 27, 28 to the closed position; a train moving from left to right will not however open the contacts 27, 28. Fig. 4 shows diagrammatically the application of the treadle device 10, 19 to the control of a level crossing signal. The two pairs of contacts 27, 28 and 29, 30 of the treadle device 10, 19 are placed in parallel in a circuit to a signal controlling relay 35, 36 and as during the passage of a train in one direction the two sets of contacts are for a short time both open the magnet 35 will be de-energized and the second magnet 36 can then move the relay armature over to close the contacts 38, 39 for giving the signal. When the train reaches the level crossing it actuates a vibratory sleeper contact 41 which momentarily de-energizes the second magnet 36 of the relay so that the armature is restored to normal. A train going away from the crossing actuates the treadle device 10 but in the manner that the contacts 27, 28 remain closed and so the crossing signal is not actuated.
Patent GB-287009-A (GB)
Title: Improvements in ice cream cones
IPC: B65D81/38
Filed: 1927-10-20
Abstract: 287,009. Shapiro, J. Oct. 20, 1927. Wafer containers for ice-cream. - A moulded edible pastry ice-cream cone, of the kind comprising a bowl 12 with an integral conical stem or handle portion 16, is strengthened by the provision of external parallel ribs, two of which 21, 22 are tangential to the bowl at the mould line 20 and the intermediate ribs 23, 24 cross the junction 15 of the bowl and stem at an angle. The ribs preferably have a height which is greater than their width and is at least as great as the thickness of the cone. Each rib extends on to the bowl and more than once around the stem.
Patent GB-1364359-A (GB)
Title: Drying process and resultant product
IPC: C09D11/00
Filed: 1972-06-15
Abstract: 1364359 Drying polyurethane coatings A C HATRICK CHEMICALS PTY Ltd 15 June 1972 [21 June 1971 (2)] 27973/72 Heading B2E [Also in Divisions B6 and C3], A vehicle including a prepolymer containing free isocyanate groups is dried by subjecting to treatment with an agent consisting essentially of ammonia or an amine, the agent being in the vapour phase. The vehicle may be a paste printing vehicle or ink, a liquid printing ink or a screen printing ink, an adhesive, surface coating or caulking compound. The expression "free isocyanate groups" includes groups which are releasable Examples of amines are methylamine, ethylamine, propylamine, isopropylamine, and isomers of butylamine, hydrazine, ethylene diamine, propyline diamine and diethylene triamine. Prior to treatment with the agent, the vehicle may be coated upon a substrate, e.g. a steel plate, concrete or plastics. In a typical example, a paste printing ink vehicle comprising 24% isophthalic modified pentaerythritol ester of rosin, 24% diisobutyl phthalate (solvent), 8% aliphatic hydrocarbon oil, 44% diphenylmethane-4, 4-diisocyanate was printed at letter press-offset lithographic film weight on to coated art paper, coated paperboard, metal foil and the prints immediately placed in a sealed glass vessel containing ammonia vapour. As shown in the drawing apparatus for drying the vehicle comprises a drying chamber 1, atomizing apparatus 2 situated near the end 3 of the chamber opposite the entry door 4, a transversely disposed cross-rail 10 on which the individual substrates 9 are suspended. The atomizing apparatus 2 comprises a first (areosol propellant) container 5 and a second (drying agent) container 6, the output of the first container being directed through a nozzle 7 situated above the upper end of a tube 8 immersed in the liquid held in container 6.
Patent GB-1367891-A (GB)
Title: Variable speed moving pavements
IPC: B66B21/12
Filed: 1971-09-09
Abstract: 1367891 Variable speed moving pavements DUNLOP HOLDINGS Ltd 9 Sept 1971 [10 June 1970] 28027/70 Addition to 1185913 Heading B7L In transport apparatus comprising a moving pavement formed by a series of adjoining platforms 1 which are differently aligned with respect to their direction of travel 5 in successive zones whereby they move at different speeds in the different zones (low speed in zone 2, speed changing in zone 4, high speed in zone 3), the platforms 1 are deformable such that the orientation of adjacent platforms may be changed without overlapping or forming gaps between the platforms. Each platform 1 comprises two rigid end members 10 pivoted at 11 to an hexagonal baseplate 8 and interconnected by a deformable surface. The end members 10 have interlocking hinges 17 for engagement with an end member of each adjacent platform. The deformable surface may be a bellows 15 in two parts on either side of a rigid central dividing member 9. Folding of the upper and lower surfaces of the bellows 15 provides apices, parallel to the dividing member 9, which are linked by fabric strips 16 to prevent bulging due to gas pressure within the bellows 15. Alternatively, the deformable surface may be formed by an inflatable tube provided on its internal surface with two sets of interengaging hooks (25, 26), Figs. 9 and 10 (not shown), one set for each of the two halves of the circumference of the tube (24), which are interlocked to maintain the tube (24) in a flat elongated cross-section. A further alternative deformable surface, Fig. 8 (not shown), comprises deformable inserts (18) of elastomeric material alternating with steel sections (19, 20, 21, 22), the elastomeric inserts extending parallel to the end members (19, 22) of the platform in its undeformed condition.
Patent GB-716091-A (GB)
Title: Improvements in or relating to composite metallic bodies
IPC: H01J19/30
Filed: 1952-11-10
Abstract: 716,091. Electrode materials and processing. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Nov. 10, 1952 [Nov. 16, 1951], No. 28206/52. Class 39(1) [Also in Group XXII] Electrodes with a high heat radiating power for electron discharge tubes are cut from substantially oxygen free sheet iron-aluminium alloy containing 0.01-1.0 per cent aluminium and coated with aluminiuin by cold rolling. The assembled electrodes are heated to 800‹C to give a fine grain block coating of iron-aluminium alloy.
Patent GB-282358-A (GB)
Abstract: 282,358. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Dec. 14, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Induction motor meters.-For measuring currents of different frequencies, the pressure winding is provided with a tapping, to which the voltage of smaller frequency is connected, at a distance of from 5 to 30 per cent of the number of turns from one end of the coil, and an ohmic resistance is connected in front of the tapping point so that the total resistances in the circuits connected to the two voltages are in the same ratio as the corresponding frequencies. Alternatively, the pressure magnet may be provided with two separate windings, the total ohmic resistances of which are in the same ratio as the frequencies, auxiliary resistances being employed if necessary. A portion of the coil having the greater number of turns may be connected in parallel with the coil having the smaller number of turns, enabling a thinner wire to be used for the larger coil. In an alternative construction, for each frequency there can be used a separate gear system, which systems are enclosed in a. joint casing and may act on one and the same armature. The ends of the windings are brought to terminals outside the casing, or a, change-over switch with an external handle may be arranged within the casing.
Patent GB-1386881-A (GB)
Title: Process for the manufacture of non-staining heat-resistant and degradation-resistant polyisoprenes
IPC: C08K5/17
Filed: 1972-06-16
Abstract: 1386881 Stabilizing solution-polymerized polyisoprene CHEMISCHE WERKE HULS AG 16 June 1972 [18 June 1971] 28287/72 Heading C3P Solution polymerized polyisoprene is stabilized by adding thereto a mixture of: (I) 0À005-0À05 part by weight, per 100 parts polymer, of a secondary aromatic amine of formula in which R 1  and R 2  are each a C 1-20  optionally substituted aliphatic hydrocarbon radical, a C 5-12  optionally substituted saturated cycloaliphatic radical or an optionally alkyl-substituted mono- or bi-cyclic aromatic hydrocarbon radical; and (II) 0À01-1À0 part by weight, per 100 parts polymer, of a C 2-20  alkyl or cycloalkyl monoamine or a polyamine of formula in which R is an alkylene radical of up to 6 carbon atoms and n is 1-4. The stabilizer mixture may be added to the solution after a customary stopper (e.g. methanol) has been added, or it may itself be used as stopper. Alternatively, the aliphatic amine part thereof may be used as stopper and the aromatic amine added subsequently. In examples, in which all these alternatives are shown, isoprene is polymerized in hexane solution using as catalyst a mixture of alumininium triethyl dibutyl etherate and titanium tetrachloride, and the stabilizer components are selected from (I) N - isopropyl - N<SP>1</SP> - phenyl - p - phenylene diamine, N - (1,3 - dimethylbutyl) - N<SP>1</SP> - phenylp - phenylene diamine and N,N<SP>1</SP> - di(1,4- dimethylpentyl)-p-phenylene diamine, and (II) ethylene diamine, hexamethylene diamine and dipropylene triamine. Certain compounded compositions are also exemplified, additives being selected from naphthenic extender oil, aromatic plasticizer oil, carbon black and conventional vulcanizing ingredients.