baber/WOPTO huggingface dataset:
Patent GB-440078-A (GB)
Title: Improvements relating to fluid pressure braking apparatus for rail and other vehicles
IPC: B60T8/32
Filed: 1935-03-20
Abstract: 440,078. Fluid-pressure brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Down, S. G.; 204, Hawthorne Street, Edgewood, Pennsylvania, U.S.A.) March 20, 1935, No. 8713. Convention date, May 3, 1934. [Class 103 (i)] In vehicle brake mechanism having means for partly releasing the brake to limit the deceleration of the vehicle, having regard to the increase of coefficient of friction with falling speed, means are provided for increasing the rate of release in accordance with the fall of speed. Electrically operated application and release valves 13, 14 of the fluid-pressure brake are controlled by a pendulum 11 or other inertia responsive device. The exhaust pipe 83 of the valve 14 leads to the chamber 50 of a valve device 15 for controlling the rate of release of the pressure fluid from the brake cylinder 3. This valve device comprises a slide valve 46 adapted to be held in the position shown by a spring 45 to uncover a tapering exhaust port 48. A magnet 37 which moves the plunger 44 carrying the slide valve to cover the port 48 is in circuit with a tachometer generator 16 driven by the wheel axle 18. In order that the generator may be operative only when the brake is applied, the circuit 31, 32 of the field winding of the generator includes a switch 26, 27 closed by a plunger 23 by the pressure in the supply pipe 21. To apply the brake, the pipe 21 is connected to the reservoir 2 by the driver's valve 1 and the valve devices 13, 14 being both de-energized so that the valves 54, 63 are respectively open and closed as shown, the pressure fluid is supplied through passages 56, 57 to the brake cylinder 3. If the deceleration exceeds a predetermined value the pendulum 11 first engages a contact 71 to energize the valve device 13 thus closing the valve 54 and then engages the contact 78 to energize the valve device 14 opening the valve 63 so that fluid from the brake cylinder is admitted to the chamber 50 of the valve device 15. At high speeds the current in the magnet 37 from the generator 16 is sufficient to move the plunger 44 to the extreme left to close the port 48 so that the brake cylinder exhausts only through the restricted byepass 49. When the cylinder pressure has reduced sufficiently, the pendulum 11 moves away from the contact 78 thus cutting off the brake cylinder exhaust. With reduction of the speed and consequent increase in the coefficient of friction, the valve 63 is again opened by the pendulum and as the current in the magnet 37 is less, the port 48 is partly uncovered so that brake cylinder exhaust takes place at a greater rate.
Patent GB-943482-A (GB)
Title: An improved stereophonic transmission system and receiver therefor
IPC: H04H20/88
Filed: 1960-03-14
Abstract: 943,482. Diplex radio signalling; automatic phase control systems. TELEFUNKEN G.m.b.H. March 14, 1960 [March 14, 1959], No. 8824/60. Headings H3A and H4L. A transmitted carrier-wave is alternately modulated by stereophonic sound signals at a supersonic switching frequency and amplitude modulated by the same switching frequency with the maxima of the synchronizing frequency occurring at the transitions from one stereo signal to the other, for synchronizing in phase the switching oscillations of equal frequency derived from a local oscillator at the receiver. As shown, the receiver oscillator 11 renders diodes 3, 5 and 4, 6 of a diode bridge alternately conductive at the switching voltage maxima so that the total signal demodulated in the receiver passes either to an output amplifier A or B with associated speaker, filters 14-16 and 17- 19 by-passing to earth the-synchronizing frequency. But departure from normal phase quadrature of the synchronizing frequency and the local oscillator also produces across filter 20, 21 a D.C. output in magnitude and polarity indicating the phase error, which applied to a reactance valve 13 shunting the oscillator 11 restores it to correct quadrature phase operation; the switching voltage is, due to the local oscillator tuned circuit, at 90 degrees to the local oscillations.
Patent GB-1057991-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H23/16
Filed: 1965-03-02
Abstract: 1,057,991. Snap-action switches; contact members for switches. CUTLER-HAMMER Inc. March 2, 1965 [March 2, 1964], No. 8852/65. Heading H2B. A movable contact carrier 16 of insulating material carries contacts 15, (15), for bridging fixed contacts 8, 10 or (9), (11) (Fig. 2, not shown), and has adjacent ribbed insulating surfaces 29, (29), for cleaning the contacts 8, (9), 10, (11). An operating lever 6 moves carrier 16 via an over-centre spring 19 engaging a projection 18 on carrier 16, the general switch construction being similar to that of Specifications 655,390 and 947,889. The contact carrier 16 has two recesses (27), (28) (Fig. 4, not shown), into which the V-shaped contacts 15, (15), are pressed to fit flush with the insulating surface of the carrier. Each contact 15 has a base portion 15a of copper, having good arc-interrupting characteristics, and an inlaid portion 15b of coin silver, having low contact resistance.
Patent GB-163555-A (GB)
Title: Improvements in pillion seats for use upon motor cycles
IPC: B62J1/14
Filed: 1920-03-26
Abstract: 163,555. Shakespear, G., Truslove, E., and Busby, T. March 26, 1920. Seat attachments.-A pillion seat for motor-cycles, of the type supported on springs and guided vertically to prevent rocking movement, comprises a seat proper having a frame formed of strip material B, B<2>, of which the members B are bent at the ends to form guide-sockets B<3> sliding, under the control of springs C, on rods A<7> formed integrally with bent portions A<8> adapted to serve as rails or handles. The rods A' are secured in sockets A of a frame A, A<2> adapted to be attached to the carrier by means of clamping-pieces A<3>, bolts A<4>, and wing-nuts A<5>. The rods may be secured to the movable seat, and the guide-sockets formed on the fixed frame.
Patent GB-294920-A (GB)
Title: Improvements in or relating to carding surfaces
IPC: D01G15/88
Filed: 1927-03-31
Abstract: 294,920. Platt, J.,Platt, W., and Platt, H., (trading as Platt, J. W. & H.). March 31, 1927. Carding-engines. - Carding-engine flats are formed of a number of toothed strips A, Fig. 8, assembled side by side, and secured together by clips G, which are closed over projections D<1>, D<2> at the ends of the strips. Each strip has a thickened base, C, Fig. 4, for separating the rows of teeth, such base being produced on the continuous strip from which the strips are cut, either by rolling or drawing the metal to the desired shape or by uniting a continuous strip to the toothed strip. The unit held in the clips G is secured to the flat by clips. Specification 207,429, [Class 120 (iii), Yarns &c.], is referred to.
Patent GB-273408-A (GB)
Title: Improvements in valve gear
IPC: F01L1/20
Filed: 1926-04-06
Abstract: 273,408. Weller, J. April 6, 1926. Actuating - mechanism. - An adjustable tappet for reciprocating valve gear comprises a rotatable cap or table A adjustably secured, at C, to the valve stem B, a non-rotatable collar D keyed at F to the stem, and a separate intermediate locking member N having projections M on both sides to engage with slots A<1> in the cap and collar A and D, respectively, to secure them against rotary movement. As an alternative the cap or table may be made non- rotatable in conjunction with a rotatable collar. Preferably the number of slots A<1> in the two members differs by one so that a fine or vernier adjustment is given to the tappet cap or table A. The intermediate locking member preferably takes the form of a split spring ring N, as shown.
Patent GB-1401128-A (GB)
Title: 4-wire telecommunication networks
IPC: H04M3/26
Filed: 1973-02-23
Abstract: 1401128 Automatic exchange systems SIEMENS-ALBIS AG STANDARD TELEPHON UND RADIO AG and HASLER AG 23 Feb 1973 [29 Feb 1972] 8956/73 Heading H4K In a centrally controlled network, 4-wire connections between a calling switching point and a called switching point are tested by a testing device in such a manner that a digital signal sent out from the testing device to the calling switching point is looped back to the testing device for comparison with a reference signal. The connection between the testing device and the called switching point is then likewise tested and the connection between switching points is completed. The network shown comprises a number of switching points S1-S5, Sk-Sn (defined as points where transmission channels of a first group may be connected to transmission channels of a second group, e.g. line concentrators, multipliers &c.), and a number of exchange points V 1 -V 5  (defined as points where each transmission channel may be connected to any other transmission channel), which are interconnected by 4-wire connections which may be T.D.M. highways. Some of the exchange points, e.g. V 3 , V 4 , V 5 , include registers WE 1-3 having associated therewith testing devices P1-P3, which in the case of T.D.M. transmission can test a number of connections simultaneously on a time sharing basis. It is also indicated that for all idle 4-wire connections a loop exists between the two directions of transmission at each switching point and exchange point. In setting up a connection, control ST first establishes a connection between a calling switching point, e.g. Sk, and a register WE2, but the loop between transmission directions is maintained at the calling switching point Sk. A testing device P2 then sends out a digital signal to the calling switching point Sk where it is looped back to the testing device, for comparison with a reference signal. Assuming an acceptable connection, a second test is performed by removing the loop at the calling switching point and checking that no signal is then received back. Assuming the check is positive, the register WE2 transmits a proceed to send signal and information from switching point Sk relating to the called switching point, e.g. Sn, is received in the register WE2. Control ST then establishes a 4-wire connection between the register WE2 and the ca led switching point Sn via exchange points V 4 , V 1 , V 5 , and switching points S 5  (indicated in heavy lines in Fig. 2, not shown). This 4-wire connection is then tested from testing device P2 as above and the connection is switched through to give a 4-wire connection from Sk to Sn via S1, S2, V3, V1, V5, S5 (indicated in heavy lines in Fig. 3, not shown) the connection to the register in exchange point V4 being dropped.  A false loop connection can be investigated by successively looping the 4-wire connection at points progressively nearer to the testing device until one of the connections tests correctly.
Patent GB-454159-A (GB)
Title: A new or improved clip
IPC: F16L33/04
Filed: 1935-03-22
Abstract: 454,159. Band clips. HARLEY, F. B., 167, Frimley Road, Camberley, Surrey. March 22, 1935, No. 9038. [Class 44] In a band clip applicable generally, but des. cribed as applied to a brake drum to prevent or reduce brake squeal, and of the type in which the ends overlap and the tightening is effected by increasing the overlap, the tight ning means comprises a screw 4 held against rotation by the engagement of a non-circular reduced portion 7 in a corresponding aperture in one upturned end 3 of the band, and an internally threaded sleeve 5 having a reduced circular portion 8 rotatable in the other upturned end of the band. Screw 4 has a left-hand thread so that clockwise rotation of the nut, as by a screw-driver applied to a slot in the end 8, screws the nut further off the screw and tightens the clip. An air-vent aperture 2 is provided in the sleeve end. As shown, the overlapping portions of the band are reduced in width to lie side-by-side within width of the remainder of the band. A modification is described in which the band is made of wire with upturned looped ends to receive the screw and nut.
Patent GB-1169561-A (GB)
Title: Improvements relating to Frequency Dependent Circuit Arrangements
Inventor: SAMPLE PETER
IPC: H03L7/23
Filed: 1966-03-02
Abstract: 1,169,561. Frequency changing; automatic frequency control. RACAL INSTRUMENTS. 21 Feb., 1967 [2 March, 1966], No. 9062/66. Headings H3A and H3F. A frequency changing circuit comprises an oscillator 16 which produces an output signal having a frequency f s  which is a fraction of the frequency of an input signal f x  controlling the oscillator, and means 7 for combining the signals f x , f s  to produce an output signal f y  lying in a predetermined frequency band. The input signal f x  is sampled by circuit 6 at a rate determined by oscillator 8 to produce an error signal to control the oscillator 8 so that its output frequency is a determined fraction fx/m of the input frequency. This signal is then fed with signal f s  from oscillator 12 to a mixer 11 to produce an output fx/m-fs. A second output from oscillator 12 is divided by n to give a frequency f s/n  which is compared with the signal f x/m -f s  in a comparator 13, and the resulting output is fed back to control the oscillator 12 so as to maintain the relationship f x/m -fs = f s/n . The signal f s  is mixed with the signal f x  in mixer 7 to produce a range of modulation products, the required one being selected by filter 15. The sampler 6 and oscillator 8 may be replaced by a tunnel diode synchronous divider.
Patent GB-434608-A (GB)
Title: Improvements in and relating to water heaters
IPC: F24H1/26
Filed: 1934-03-23
Abstract: 434,608. Combined solid and liquid fuel stoves. LANE, P. W., 5, Queen Street, Derby. March 23, 1934, No. 9092. [Class 126] [See also Group XIII] Oil from motors drips from a reservoir m on to wood or refuse in the firechamber a of a water heater comprising a water jacket b surrounding the truncated conical firechamber a with an opening at the top into which is inserted a downdraught funnel j. Air also enters by holes p and flue gases pass off at h. The feed and drawoff pipes d, e may be connected to a storage tank. Specification 380,394, [Group XIII], is referred to.
Patent GB-1047926-A (GB)
Title: Vinylidene chloride polymer compositions
Inventor: HAVENS CARL BRADFORD
IPC: C08K5/20
Filed: 1964-03-04
Abstract: Compositions comprise a normally crystalline vinylidene chloride polymer consisting of 70 to 100 weight per cent of vinylidene chloride and 0 to 30 weight per cent of at least one monoethylenically unsaturated comonomer, and a fatty acid amide. Specified comonomers are vinyl chloride, vinyl acetate, vinyl propionate, acrylonitrile, alkyl and aralkyl acrylates, acrylic acid, acrylamide, vinyl alkyl ethers, vinyl alkyl ketones, acrolein and allyl esters. Specified amides are palmitamide, stearamide, oleamide, behanamide and erucyl amide.  The compositions may also comprise antioxidants, light stabilizers and plasticizers, e.g. dioctylphthalate and dibutyl sebacate.  The compositions may be formed into shaped articles, particularly oriented, shrinkage films for packaging foodstuffs such as poultry and cheese.  In an example a vinylidene chloride/vinyl chloride copolymer prepared by emulsion polymerization in the presence of potassium sulphate and sodium dihexyl sulphosuccinate is blended with magnesium oxide, dibutyl sebacate and stearamide, erucyl amide, palmitamide, oleamide and behenamide.
Patent GB-1000662-A (GB)
Title: Process for rendering cellulosic materials resistant to the attack of micro-organisms
Inventor: PECHMEZE JACQUES PIERRE EDMOND
IPC: B27K3/40
Filed: 1962-03-09
Abstract: The preparation by known methods of the following compounds, which are used to render cellulosic material resistant to the attack of micro-organisms (see Division A5), is described: (1) sodium 2-pentachlorophenoxyethyl sulphate; (2) N - (2 - pentachlorophenoxyethoxymethyl)-pyridinium chloride; (3) N-(2-hydroxyethyl)-pentachlorophenoxyacetamide (intermediate) and its sulphuric ester sodium salt; (4) the 2,4,5 - trichlorophenoxy analogues of Example (3); (5) 2 - pentachlorophenylthioethanol (intermediate) and its sulphuric ester sodium salt; (6) N - (2 - hydroxyethyl)pentachlorothiophenoxyacetamide (intermediate) and its sulphuric ester sodium salt; (7) N - (2-pentachlorothiophenoxyethoxymethyl) pyridinium chloride.ALSO:Cellulosic material is rendered resistant to the attack of microorganisms by treatment in aqueous solution with a compound of formula <FORM:1000662/A5-A6/1> wherein Hal is halogen, n is 1-4, X is 0 or S, R is a C1-6-aliphatic chain, Z is a sulphonate or quaternary ammonium group, Y is -O- when Z is sulphonate and -O-CH2- when Z is quaternary ammonium, U is H, halogen or a methyl group such that the molecule is symmetrical; the material is thereafter heated at 100-200 DEG C.
Patent GB-646366-A (GB)
Title: Improvements in or relating to the production of thin hollow glass articles, such asdrinking glasses
IPC: C03B33/095
Filed: 1946-03-25
Abstract: 646,366. Shaping glassware. UNITED GLASS BOTTLE MANUFACTURERS, Ltd., and DORMAN, E. P. March 25, 1946, No. 9191. [Class 56] In a machine for burning off the moils from tumblers &c. in the manner described in Specification 541,755, a stationary separating unit is driven by main cams intermittently locked and rotated during a single cycle by two clutches controlled by other cams on an intermediate member driving one of the clutches and itself driven from a continuously rotating part through a third clutch normally engaged throughout the cycle. Thus the arcuate extent of the operative parts of the main cam contours may be increased at the expense of the inoperative (fixed radius) parts, whereby large cam follower movements may be obtained without undue increase of cam diameters or gradients. Provision may also be made for adjusting the incidence of the various steps in the operative cycle, and for automatically stopping the machine on completion of one manually started cycle. General arrangement. The article holding device A, burner B. and gripping device G, Fig. 1, all as described in the above-mentioned Specification, are mounted on the hollow central column 2 (which serves as a connection between a vacuum pump 27 and the device A) by means of brackets 8, 12, the latter being vertically adjustable by means of a rack 17 and gearing 19. The burner is rotated by means of a rack 17 and gearing 19. The burner is rotated from pulleys 35, 35a keyed to the main driving shaft 16 which may also be coupled by a clutch 36 to a shaft 37, Fig. 5. Cam drive. The holding device A, vacuum valve rod 95, and gripping device G, are operated respectively by cams 4, 7, 6 secured to a toothed disc 3 driven through gearing 42, 54a, 53, Fig. 5, alternately held stationary (as shown) by engagement of gear 54 by a non-rotatable clutch member 51, and rotated by engagement of gear 42 by a clutch member 41 keyed to the driving shaft 37 ; the clutch controlling rocker fork 55 is linked to a snap-acting bell crank 59 carrying rollers 62, 63 engaged alternately by contact pieces 73, 74, Fig. 1, on a pilot drum 43 driven by shaft 37 through gears 40, 48, 45 ; each pair of contact pieces 73 (starting), 74 (stopping) is fixed to a plate 105 in such a way that the disc 3 is driven a total of one turn for one turn of the drum 43. Variation of incidence of functions. The point in the operation cycle at which each step occurs is determined according to the spacing around the drum 43 of the plates 105 carrying the contact pieces 73, 74. Starting and stopping the machine. To engage the clutch 36 a rod (within the tube 76) is withdrawn against a spring by a hand grip 79 and held by a latch 81 ; upon completion of a cycle, a projection 88 (on the disc 3), through lever 87 and rod 89, snaps over the bell crank 59 to lock the disc 3 in starting position and a trip cam on the drum 43 withdraws the latch 81 to disengage the clutch 36.
Patent GB-630916-A (GB)
Title: Improvements in crude-oil burners
IPC: F23D5/00
Filed: 1947-04-08
Abstract: 630,916. Liquid-fuel burners. DEKKER, A. April 8, 1947, No. 9262. [Class 75(i)] In a crude-oil burner comprising an annular vaporizing pan A having. a cover G and a sloping bottom B the upper and lower parts of which are provided with an oil inlet D and an oil residue outlet E, respectively, the latter connecting with a separate combustion chamber M2 below the pan A where the oil residue burns and heats the pan A, a central perforated column R is provided through which combustion air passes into both the residue and the main oil-gas burner flames. A narrow inclined annular passage C between the panA and the cover G provides an outlet for the oil vapour permitting any condensed oil to flow back into the pan and is so dimensioned that it is not closed when the apparatus becomes heated and the cover G expands relatively to the pan A. The passage C may be divided by ribs into narrow grooves. The oil gas is mixed with air entering through holes K in the pan wall, an annular shutter L having inclined slots engaging pins L2, so as to be adjustable axially by rotation being provided to control the air supply and being connected by a cable with a spindle of a control valve in the fuel supply line whereby the oil and air supplies may be controlled simultaneously. The pan A is fixed against rotation at its upper end and its lower end is provided with inclined cams engaging notches in the wall of the chamber M2 so that when the latter is rotated by means of a handle Q the pan A is raised to provide a gap for igniting oil in the chamber M2. Specification 586,869 is referred to.
Patent GB-182868-A (GB)
Title: Process and apparatus for the distillation of tars or oils
IPC: C10G9/40
Filed: 1921-03-29
Abstract: In distilling hydrocarbon oils and tars by passing them through a heated bath of molten metal such as tin or tin alloys and then into an evaporating chamber, the metal bath contains metals such as lead, zinc or calcium which will combine with sulphur.  Reference has been directed by the Comptroller to Specifications 8336/09, 116,304 and 141,223, [all in Class 32, Distilling &c.].
Patent GB-1505491-A (GB)
Title: Ice confection
IPC: A23G9/30
Filed: 1974-03-01
Abstract: 1505491 Extruding ice confections UNILEVER Ltd 28 Feb 1975 [1 March 1974] 9395/74 Heading A2B [Also in Division B5] An ice confection is extruded through an extrusion plate having a multiplicity of holes, each hole have a cross sectional area within the range displayed by a 5 to 80 British Standard Mesh. Preferably the holes form an array, each hole being sufficiently close to the others that after extrusion coalescence occurs between the various portions issuing from each hole. By having no holes in portions of the plate and thus forming a more complex array, extrudates having air passages running longitudinally therethrough can be produced. A second removable plate may additionally be present, preceding the first plate to aid even flow therethrough and help prevent blockage of the first plate, which additionally may be heated e.g. by induction heating.