baber/WOPTO huggingface dataset:
Patent GB-728160-A (GB)
Title: Vehicle-tyre vulcanising press
IPC: B29D30/06
Filed: 1952-10-13
Abstract: 728,160. Vulcanizing presses for tyres. MACBETH, C. Jan. 4, 1954 [Oct. 13, 1952], No. 25556/52. Class 87 (2) A press of the kind that vulcanizes two tyres simultaneously between superposed mould holders b, c, d, the lower holder b being fixed and the intermediate and upper holders c, d being movable, has special means for actuating the two movable holders. The press being closed, first the two movable holders are raised vertically in parallelism, d being moved twice as fast as c ; then the upper holder is opened angularly as shown in Fig. 5, the upper tyre moulded between c and d being lifted out of c ; then the upper tyre is removed; the intermediate holder c is moved angularly to the position shown in Fig. 6, the lower tyre moulded between band c being lifted out of b; then the lower tyre is removed. From the holders d, c extend arms s, q which carry at their ends spindles t, r disposed in vertical slots v, u in the fixed press frame a. A lever w fulcrummed at a fixed point a<1> on the press frame a engages the spindle t and is connected by a link x to spindle r, the arrangement being such that when spindle t rises in its slots a similar movement of half the amount is imparted to spindle r. On a shaft y driven as by an electric motor (not shown) is mounted a cam 3 which raises spindle t and hence spindle r. The shaft y carries crank arms 4 connected by links 6 to toggle arms e which are pivoted to fixed lower points f and to the upper ends of links g connected to holder d. The press being closed, as in Fig. 1, the shaft y is rotated, whereby first the holders c, d rise in parallelism, the vertical movement of c being controlled by guides 7 on d which engage rollers 8 on c, then d is moved angularly to the Fig. 4 position. During these movements the bead-ring 19 in the upper mould is raised, with its tyre, out of c by ascent of a plunger 24, this plunger pushing upwardly a stem 18 depending from bead-ring 19. Then (the upper tyre having been removed) an electric motor 14 is started and rotates a cam 10 (or a crank, Fig. 7, not shown) to depress the free end of a tailpiece 15 forming part of arm q, whereupon c pivots about r to the Fig. 6 position whilst the lower tyre is ejected on its bead-ring 21 by further ascent of plunger 24, this plunger having a collar 32 that engages a shoulder 33 in a stem 22 that depends from bead-ring 21 and slides in a bore 23. The first upward movement of plunger 24 is effected by movement of a link 6 via link 30 and bell-crank lever 25, and the second upward movement by tailpiece 15 via link 27 and lever 25.
Patent GB-997949-A (GB)
Title: Improved signal limiting circuit arrangement
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: H03K5/08
Filed: 1961-07-14
Abstract: 997,949. Valve and semi-conductor limiting circuits. RANK-BUSH MURPHY Ltd. July 16, 1962 [July 14, 1961], No. 25581/61. Headings H3P, H3T and H3W. A signal limiting circuit comprises a pair of transistors or valves 16, 18 coupled by a common emitter or cathode resistor 17, the input signal being applied to the base or grid of one and also through a voltage divider 14, 15 and a peak rectifier 19 to the base or grid of the other, output signals being derived from one of the transistors or valves (e.g. at 23). The two transistors in the circuit shown act as a comparator so that the output voltage switches between two values when the input signal derived from a photocell 11 passes a threshold value produced by the peak rectifier and which, since R14 equals R15 is equal to half the peak value. Inaccuracy due to the voltage drop across the emitter-base path of transistor 19 may be removed by connecting a similar transistor acting as an emitter follower between the emitter of 13 and the base of 19. Where the photo-cell is replaced by a source of D.C. television synchronizing signals a D.C. restorer must be inserted in the input circuit.
Patent GB-735984-A (GB)
Title: Improvements in or relating to mining apparatus
IPC: E21C27/26
Filed: 1953-09-16
Abstract: 735,984. Pipe connections. JOY MANU-, FACTURING CO. Sept. 16, 1953 [Oct. 3, 1952], No. 25584/53. Class 99 (1).  (Also in Groups XXI and XXX] Means for connecting a conduit on one structure to a conduit on another structure, which has a straight-line motion relative to the first structure, comprises connecting the first conduit by way of a bored block 197 to a conduit 196, that extends longitudinally in parallel relation to the direction of relative movement of the structures. The conduit 196, which is closed at the end remote from the block by a plug 201, enters, past sealing means 199, a cylinder 195 and extends, through further sealing means 200, to beyond the cylinder 195. A hole 202 is so positioned in the conduit 196 as to be always within the cylinder 195, so that liquid can pass from a conduit 206 on one structure into cylinder 195, through hole 202 into conduit 196, and thence through the block 197 to the conduit on the other structure irrespective of the relative position of the two structures.
Patent GB-384377-A (GB)
Title: Improvements relating to buffers for colliery tubs or other light railway vehicles
IPC: B61G11/08
Filed: 1931-09-12
Abstract: 384,377. Buffers for railway wagons. STAFFORD, J., Scawthorpe House, Woodlands, Doncaster. Sept. 12, 1931, No. 25626. [Class 103 (v).] A buffer for colliery corves and like wagons comprises a solid block 2 of wood or similar material adapted to slide in a guide or casing l against the action of one or more elastic rings 4 of rubber or rubber and steel embracing a projection 3 on the block 2, a bolt, cotter or the like 6 being passed through the casing and block, one of which is slotted, to prevent complete withdrawal of the block. Specifications 5210/84, [Class 103, Railway &c. vehicles], and 331,421, [Class 103 (v), Railway &c. vehicles, Draught &c. appliances for], are referred to.
Patent GB-375147-A (GB)
Title: Improvements in or relating to automatic vehicle couplings
IPC: B61G3/16
Filed: 1931-09-12
Abstract: 375,147. Automatic couplings for railway vehicles. SCHARFENBERGKUPPLING AKT.-GES., 105, Kurfurstenstrasse, and SCHARFENBERG, K., Sudetenstrasse, Nicolassee, both in Berlin. Sept. 12, 1931, No. 25641. [Class 103 (v).] In automatic couplings for railway vehicles of the vertical plane type in which the two similar coupler-heads are secured in interengaging relationship by means of coacting catches pivoted on vertical axes in the coupler-heads, the pivotal axes of the two catches are arranged to lie in one plane with the centres of the forward portions or corresponding coupling-elements on the two heads. In the construction shown in Figs. 1 and 2, the invention is applied to couplingsas described in Specification 334,151, [Class 103 (v), Railway &c. vehicles, Draught &c. appliances for], the cylindrical bolt a being advanced forwardly so as to be coaxial with the eye c, which is engaged by the bolt of the other head. The axes p about which the catches r pivot are disposed in the centre line of the cylinders a, while inclined surfaces x ensure the necessary lateral displacement to effect a coupling. In a modification, the main portion of the bolt a is polygonal, only the end portion that enters the eye c being of cylindrical or conical shape. In another construction, Fig. 8, the bolt portions a are made prismatic, the eye portions are replaced by hooks c<1>, and the inclined surfaces d<1> serve as a protection for the catches r, suitable guiding-elements being added, if desired. In a still further modification, projecting claws or hooks on the upper and lower portions of the coupler-heads are designed to lock behind each other, the axes of the pivoted catches lying in one plane with the hook surfaces in contact.
Patent GB-632654-A (GB)
Title: An improved apparatus for washing gases
IPC: B01D47/08
Filed: 1946-08-27
Abstract: 632,654. Washing gases. RATHGEB, H. Aug. 27, 1946, No. 25652. Convention date, Aug. 27, 1945. [Class 55 (ii)] Apparatus for washing gases contaminated by liquid and solid particles comprises a rotary atomiser, means for mixing a washing liquid with the gas and for feeding the mixture to said atomiser, a filter so positioned in relation to said atomiser that the atomised gas-liquid mixture is thrown against said filter, solid particles being continuously washed from the filter, and means for recirculating the separated liquid to the atomiser. In the form shown, a gas inlet pipe 2 extends into container 1 to just above the surface 4 of the washing liquid therein. Contaminated gas passes through pipe 2 and entrains washing liquid conveyed from the container by pipe 3. The gas-liquid mixture enters a bladed wheel atomiser 5, suspended above the end of pipe 2, the atomiser being rotated by the gas flow or by an electrical drive. The atomised mixture is thrown horizontally by the atomiser into an annular filter 8 of, for example, horse hair or steel or copper wool, the solid and liquid particles being separated from the gas. The liquid continuously scavenges the filter and drops into the container to be recirculated. The gas passes to the outlet, through a secondary filter 11, if further cleaning is desired.
Patent GB-296904-A (GB)
Title: Apparatus for exercising the ocular muscles and for fusion training
IPC: A61H5/00
Filed: 1927-09-29
Abstract: 296,904. Howard, J. R. Sept. 29, 1927. Eye instruments.- Apparatus for exercising the ocular muscles comprises a pair of horizontal tubes f having at one end of each a stereoscopic transparency, which may be illuminated as desired, and at the other end a right-angled prism and an eyepiece c. The tubes f are mounted on supports o and may be rotated by levers t. To enable the inter-ocular distance to be varied the supports o are carried in slides q on a frame p so that they may be set in accordance with the indicator a<2>. Scales r indicate the angular movement of the tubes. One of the tubes may be provided with means for the vertical adjustment of the transparency, and the apparatus is fitted with a chin rest u.
Patent GB-920724-A (GB)
Title: Frequency divider circuit
Inventor: RYAN WILLIAM DAVID
IPC: H03B19/16
Filed: 1960-07-25
Abstract: 920,724. Frequency changing. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 16, 1961 [July 25, 1960], No. 25737/60. Class 38 (2). [Also in Group XL (c)] A frequency-divider circuit comprises a semiconductor device exhibiting carrier storage and across two electrodes of which the input alternating voltage is applied, and means for producing different ratios of forward to reverse current between the electrodes in different cycles of the input voltage whereby an output voltage appears across the electrodes during certain ones only of the reverse half-cycles of the input voltage. In the circuit shown in Fig. 1, application of an input alternating voltage to terminals 1, 2 causes conduction to occur in diode D during forward half-cycles, and a low, substantially constant voltage to appear across the series-connection of the inductor L and battery 5. Considering a forward half-cycle in which the current flows in a reverse direction through battery 5, this current increases that flowing through the diode D. During the following reverse half-cycle, current, now reduced in magnitude by that flowing through the inductor, flows through the diode being maintained by the carriers stored in the diode during the previous half-cycle. Since the reverse current is less than the forward current it can be arranged that reverse conduction is maintained for the complete half-cycle. The current through the inductor meanwhile diminishes steadily in magnitude until it reverses and commences to grow in the reverse direction. Under such conditions the current flowing through the diode in a reverse half-cycle will be greater than that flowing in the previous forward half-cycle; the stored charges will then be unable to maintain conduction for the whole half-cycle so that at some instant during that half-cycle the diode will cut off and a pulse will appear across the output terminals 3, 4. The inductor L, being now substantially open-circuited, will ring and the current therethrough will reverse so that the ensuing forward half-cycle will commence with current flowing in the reverse direction through the battery 5 as at the beginning of the cycle of events considered above. In a modified circuit, Fig. 3 (not shown), the battery 5 is replaced by a parallel combination of a capacitor and resistor across which a steady voltage is produced by the rectifying action of the diode. In addition the resistor R is replaced by a capacitor which forms, with the inductor, a series-tuned circuit resonating at a frequency slightly lower than the input frequency. The diode may be replaced by a transistor, as shown in Fig. 5 ; alternatively the transistor may be connected in a common base configuration or the collector-base diode may be used and the output taken from between either base and emitter or collector and emitter. The load resistor R L  may be replaced by a parallel tuned circuit tuned to the frequency of the output.
Patent GB-342644-A (GB)
IPC: F42D1/26
Filed: 1930-08-28
Abstract: 342,644. Blasting tampings. MINIMAX AKT.-GES., 20, Schiffbauerdamm, Berlin.-(Assignees of Sch³rmeyer, F.; 60, Heinrichstrasse, Erle, Buer, Germany.) Aug. 28, 1930, No. 25742. Convention date, Aug. 29,1929. [Class 9 (i).] A bore-hole b containing explosive cartridges c and a detonator d is filled with foam f and closed by wooden plug g. This prevents firedamp ignition and facilitates the removal of a missfired detonator by a mere pull on the electric leads e after the removal of the tamping plug.
Patent GB-1150549-A (GB)
Title: Improvements in Sonic and Ultra-Sonic Generators
Inventor: LEVAVASSEUR ROBERT
IPC: G10K5/00
Filed: 1966-06-09
Abstract: 1,150,549. Whistles. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 9 June, 1966 [9 June, 1965], No. 25780/66. Heading G5J. A sonic or ultrasonic whistle, which may be used to dissociate a gas into gases and particles includes an annular duct comprising at successive downstream locations, a turbulence reducing section, an annular slot, a whistle producing annular cavity and an amplifying cavity. As shown nitrogen heated to 250‹ C. enters under pressure at 4, a chamber 3 in which its turbulence is reduced by baffles 5 and 6. The nitrogen is forced through the annular slot 7, the width of which can be adjusted by longitudinal screwing of a conical member 2 relative to the outer housing 1, and impinges on the whistle-producing edge of an annular cavity 8. The output is amplified in a cavity 9 and focused in a zone 17. The gas (e.g. nickel carbonyl or iron carbonyl) to be thermally decomposed is passed to the zone 17 through a conduit cooled by a water jacket 21. The device is mounted with its axis horizontal (Fig. 2, not shown) within a vessel for collecting the metal powder. The blast from the zone 17 impinges on an exponential cone (24, Fig. 2, not shown) arranged to prevent the production of standing waves which might cause regrouping of the particles. Portions 18 and 19 of the members 1 and 2 may be made of plastics, e.g. P.T.F.E., to prevent the metal particles sticking thereto.
Patent GB-253775-A (GB)
Title: Improvements in distributing apparatus for discharging grain or the like
IPC: B65B1/40
Filed: 1925-10-15
Abstract: 253,775. M³hlbauer, E. Oct. 15, 1925. Shoots. - In apparatus of the kind in which bulk material is fed from a shoot 1 through a rotatable spout 2 to a series of shoots or hoppers 7 arranged radially, the upper ends of adjacent hoppers 7 merge into each other. The apparatus is particularly suitable for filling sacks 10 with weighed quantities of grain. The sacks are placed upon weighers 9 and the shoot 2 is turned by means of a handle 8 so as to cut off the delivery to the sack at the required moment. The adjacent hoppers 7 may meet at an acute angle, and the material is discharged continuously from the shoot 2 into one or other of the hoppers as the shoot is rotated.
Patent GB-215496-A (GB)
Title: Improvements in or relating to the manufacture of gas from coal or from coal and oil
IPC: C10B1/06
Filed: 1923-02-14
Abstract: 215,496. Neath, E. Feb. 14, 1923. Producers.-In apparatus in which coal gas retorts and a gas producer are combined so that the water gas is mixed with the coal gas, the water gas is passed through a distributing chamber and thence through the retorts, the distributing chamber being shut off from the generator during the blow to enable coal gas to pass from the retorts to the hydraulic main. During the blow, the producer gas is passed by a flue J up central chambers K, M filled with chequer bricks, around the retorts B and down side regenerators, finally being taken to steam boilers. During the run, the water gas follows a similar path and after heating the boilers passes to the distributing chamber N from which it passes by flue n<1> and enters openings b<1> in the retorts, the mixed gases being led from the other end of the retorts by ascension pipes G to the hydraulic main E, oil being injected into the chamber K by a nozzle k' and on to the fuel bed of the gas producer. In a modification without oil supplies, a producer adapted for up and down runs is employed, the gases from the up run being passed around the retorts before passing through them and the, gases from the down run passing directly through the retorts.
Patent GB-1352037-A (GB)
Title: Mould assembly for continuous casting
IPC: B22D11/047
Filed: 1971-04-19
Abstract: 1352037 Continous casting A ADAMEC and R LEDER 19 April 1971 [3 April 1970] 25897/71 Heading B3F A mould assembly for attachment to a melt vessel or melting or holding furnace 3, e.g. for casting strip, comprises an open-ended onepiece mould 1 mounted in a cooling jacket 2 with an end part 1a projecting, at least a portion of the part 1a having a cross-section which encircles the mould cavity without a break and has a shape different from that of the crosssection of the remainder of the part 1a, there being passages 9 through the wall of the part. The part 1a is chamfered and, as shown, has a groove 6 in its underside and this increases in depth in the direction of the edge. Towards each edge, at the upper side, there is a wedgeshaped thickened portion 7. In another embodiment, the part 1a is shaped so that its side parts project further than the middle portion. The mould 1 might be of graphite and the position and form of the solidification front 5 of the melt is influenced by the shape of the projecting part 1a of the mould.
Patent GB-1470741-A (GB)
Title: Torque rise limiting device
IPC: F02D1/04
Filed: 1975-06-18
Abstract: 1470741 Torque limiting governor: fluidpressure servomotor systems CATERPILLAR TRACTOR CO 18 June 1975 25940/75 Headings G3B and G3P An internal combustion engine has a flyweight governor with a torque rise limiting device wherein a governor spring 32 is operatively disposed between a lever 26 and a fuel control member 22, there being a control means responsive to a conditional change of the governor when engine speed decreases below a predetermined value to move the control member towards a decreased fuel position. Fig. 1 shows a hydraulic servo device in which a cylinder 37 is mounted in a bore 15 in the governor casing and contains a piston 49 between springs 56, 57. Oil under pressure is admitted to the chamber 53 at 41, flows through the valved aperture 54 to chamber 52 and escapes via apertures 44. An actuator member 69 is moved to the right with reducing engine speed by the governor spring 32 and carries with it the free end 66 of a lever 63, via the bracket 76, which contacts a valve 58 to close the aperture 54 so that pressure builds up in chamber 53 which, through the lever and bracket, applies a leftward force to the actuator member 69 to first prevent further rightward, fuel increasing movement of control member 22 and thereafter to cause leftward fuel decreasing movement thereof with speed increase. The control lever 26 applies the setting load to the governor spring 32. A cam lobe 89 on the control lever 26 compensates for loss of control pressure in chamber 53 which would occur if lever 26 were moved clockwise to decrease the governed speed by axially displacing the cylinder 37 to increase the load on the spring 57. In another embodiment Fig. 4 (not shown) a lever mechanism produces the same torque limiting effect, and in a modification to the hydraulic servo. Fig. 3 (not shown) piston 49 is provided with a stop pin (91) in the chamber 53 which delays the servo action when the speed falls below the predetermined value.
Patent GB-925068-A (GB)
Title: Production of polycarbonates
Filed: 1959-07-29
Abstract: High molecular weight linear copolycarbonates are made by reacting phosgene with a lower molecular weight copolycarbonate comprising alternating residues of a dihydric phenol and a dihydric alcohol and having reactive phenolic hydroxyl groups. The lower molecular weight polycarbonate is made by reacting a dihydric phenol with a bis-haloformate of a dihydric alcohol. Both reactions are effected in the presence of an inorganic or organic hydrogen halide acceptor and also, possibly, water and organic solvents for the polycarbonate produced by the reaction. Specified dihydric phenols are bis-phenols, and dihydroxy benzenes, naphthalenes and diphenyls.  Specified dihydric alcohols are straight and branched chain alkanediols, oxy- and thioalkylene glycols, unsaturated aliphatic glycols, saturated cyclopentane and cyclohexane diols, xylylyene glycols, styryl glycol, 3:31-dihydroxydicyclopentyl ether, hydrogenated bisphenol-A and 1:2-dihydroxy-4-vinylcyclohexene.  In the example, ethylene glycol bis-chloroformate was reacted with bisphenol-A and the product reacted with phosgene, both reactions being effected in the presence of aqueous sodium hydroxide and methylene chloride.  Reference has been directed by the Comptroller to Specifications 808,485 and 808,487.
Patent GB-238098-A (GB)
Title: A new or improved temperature indicator suitable for use upon or in connection with the radiators or internal-combustion engines of automobiles
IPC: G01K5/70
Filed: 1924-10-31
Abstract: 238,098. Wilmot Manufacturing Co., Ltd., Breeden, C. L., and Ireland, H. W. r. Oct. 31. 1924. Thermometers. - Means for indicating the temperature of an automobile engine comprises a bi-metallic strip a secured at its lower end to a plug b<1> in a tubular housing b and engaging by its upper end in a slotted extension d<2> of a toothed sector d engaging a pinion e which operates a pointer f, these parts being dispooed in a cylindrical housing b<2> secured to or integral with the housing b. For engagement in the slot, the upper end of the strip a carries a strap a<2>, Fig. 4, in which is mounted a pin a. The sector d and pinion e are pivoted between brackets c secured within the housing. The part b is formed with a flange b<4> and is externally threaded and provided with a nut b<5> so that the instrument can be clamped within an aperture in a radiator cap. Differently-coloured marks f‹, f<1>, f<2> may be provided to indicate to the driver the temperature in the radiator.
Patent GB-803956-A (GB)
Title: Improvements in or relating to cylinder heads for fuel injection internal combustionengines
IPC: F02F1/32
Filed: 1956-08-27
Abstract: 803,956. Cylinder heads. LANOVA A. G. Aug. 27, 1956 [March 22, 1956], No. 26111/56. Addition to 711,739. Classes 7(2) and 7(3) A circular insert 18, which is pressed or cast into a cavity in an air-cooled cylinder head 17, has formed therein an elongated combustion chamber 19 and a pair of valve seats 21, 22, the longitudinal axis of the chamber 19 forming a chord 20 of the insert and the centres of the valve seats 21, 22, lying on that side of the diameter 25 parallel to said chord which is remote from chamber 19. The injection nozzle 27 injects towards an air cell 26.