baber/WOPTO huggingface dataset:
Patent GB-738865-A (GB)
Title: Improvements in heating and ventilating devices for vehicles
Inventor: SALISBURY ALAN
IPC: B60H1/00
Filed: 1953-03-26
Abstract: 738,865. Heating and ventilating vehicles. SMITH & SONS (ENGLAND), Ltd., S. March 26, 1954 [March 26, 1953], No. 8437/53. Class 137. A heating and ventilating arrangement for supplying warm air to the interior of a vehicle comprises a rectangular sheet metal casing 1 having a tapered inlet portion 2 communicating with a source of fresh air and having a flap valve 3 pivotally mounted on a spindle 4 therein, and a rectangular portion accommodating a radiation element 12 which is connected to the engine cooling system by pipes 13, 14 and is controlled by a valve 38, the casing being provided with two outlet pipes 17 adapted to be connected by ducts, not shown, to nozzles directed at the interior of the car windscreen and a rectangular opening 18 which is controlled by a spring-loaded flap 19 and is adapted to discharge warm air directly into the interior of the vehicle. An operating lever 25 pivoted to the base of the casing at 26, is pivoted at one end to a link 16 connected to the valve 38, an arm 30 connected at right angles to the lever 25 adjacent the pivot 26 being pivotally connected to a link 10 for controlling the valve 3. The other end of the link 10 is pivoted at 11 to a cam 7 rotatably mounted about an axis 9 and having its periphery, notched at 35, urged by a spring 8 into contact with a pin 5 carried on an arm rigidly attached to the spindle 4. The lever 25 is cranked to lie partly inside the casing 1 and engage beneath a strip 22 secured to the upper side of the flap 19, the strip 22 having a straight portion 23 and an inclined portion 24. An operating knob 27 connected to the end of the lever 25 protruding from a slot in the casing 1 when placed at point 31, Fig. 3, closes the valves 3 and 38 so that no air flows past the valve 3 and no water passes into the radiator 12. With the knob 27 between the points 31 and 32, the valve 38 is shut and the valve 3 is open so that there is a maximum flow of cool air into the vehicle. As the knob 27 is moved past the point 32, the valve 38 is gradually opened until at the point 33 it is open to the maximum extent so that there is a full flow of heated air to the interior of the vehicle. On moving the knob 27 past the point 33, the lever 25 engages the portion 24 of the strip 22 so that the flap 19 gradually closes the opening 18 until at the point 34 the opening 18 is closed and an increased amount of heated air is supplied to the openings 17.
Patent GB-127891-A (GB)
Title: Improvements in or relating to Ordnance Breech Mechanism.
Inventor: DAWSON ARTHUR TREVOR
IPC: F41A3/08
Filed: 1917-06-15
Abstract: 127,891. Dawson, Sir A. T., and Buckham, Sir G. T. June 15, 1917. Ordnance b r e e c h mechanism. - Relates to screw mechanism of the swinging-carrier type in which the screw A<1>, shown in plan in Fig. 3, is arranged around the breech-end of the gun A instead of within it. The invention consists in interposing between the screw and the breech-end of the gun a cam-device, formed, for example, by a pin or roller a<1x> on the screw and a cam-groove a<x> on the gun, for converting the swinging movement of the carrier B into a screw locking movement, and vice versa, during the unlocking movement of the screw, to initiate the opening swinging movement of the carrier. In the form shown, the breech screw A<1> is rotated for unlocking by operating a. handle C, thereby rotating a shaft C<1> carrying a pin C<2> engaging a longitudinal groove a<2> in an extension A<2> of the screw. To prevent rotation of the screw when the carrier swings, a lug A<3> on the screw rides on the fixed hinge lug a<1>, which has a gap a<3> to allow rotation of the screw only when the carrier is in the closed position.
Patent GB-198493-A (GB)
Title: Improvements in and relating to chain grates for furnaces
IPC: F23H11/04
Filed: 1922-03-25
Abstract: 198,493. Bennis, A. W. March 25, 1922. Grates.-In a travelling chain-grate having pivoted links the overlapping ends of which are reduced to half width, the abutting inner surfaces of the ends of adjacent links are provided with inclined air passages 8, Figs. 1, 3, and are chamfered at 10 to provide further air passages between the links. The abutting outer surfaces of the ends of adjacent links are provided with bosses 7 surrounding the holes 5 which receive the pivot pins 6. The sides of the links are preferably corrugated and they may be provided with projections 11 and recesses 12 as described in Specification 15222/14.
Patent GB-897391-A (GB)
Title: Frequency selective circuits
Inventor: MILLER GEORGE BERTRAM
IPC: H01H51/32
Filed: 1959-03-12
Abstract: 897,391. Transistor switching circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 25, 1960 [March 12, 1959], No. 8646/59. Class 40(6). A frequency selective switching circuit which delivers an output only in response to an input of predetermined frequency comprises a Q multiplier (i.e. a tuned circuit to which positive feedback is applied to increase its sensitivity and selectivity) to which the input is applied, followed by a multivibrator which in the absence of any input from the Q multiplier is so biased as not to oscillate but which oscillates in the presence of A.C. signals applied thereto from the Q multiplier. The load for the multivibrator may comprise the coil of a relay so that the circuit functions as a frequency-sensitive relay; alternatively it may have a resistive load and be connected to control one or logic circuits. In the circuit shown the Q multiplier comprises a seriestuned L1, Cl circuit to which adjustable positive feedback is applied over variable resistor R1 from emitter-follower Tl. The output from the Q multiplier is applied to a multivibrator comprising reciprocally coupled transistors T2, T3, the necessary time-constants being supplied by stray capacities C5, C6. In the absence of any input T2 is fully conducting and T3 cut off. An A.C. input to T2 causes a reduction in current in T2 during the positive half cycles and so causes stray capacity C6 to charge until a sufficient potential is achieved to make T3 conduct whereupon T2 is cut off. C6 then begins to discharge so that ultimately the circuit reverts to its original state. This cycle of oscillation is repeated for as long the input continues thus energizing relay P which is provided with a shunt capacitor C4 to maintain the relay energized during the intervals between conduction in transistor T3. If necessary suitable capacitors may be connected in parallel with the stray capacitor. A plurality of Q multipliers, each responding to a respective different frequency may be connected in parallel to trigger the multivibrator.
Patent GB-766321-A (GB)
Title: Improvements in or relating to electrically operated warp stop-motions for looms
IPC: D03D51/28
Filed: 1955-03-25
Abstract: 766,321. Warp stop-motion for looms. WAGNER, C. March 25, 1955, No. 8699/55. Class 142 (2). [Also in Group XXXVI] A contact bar 3 for detector healds. is secured by a clamp having two parts 7, 8 tightened together by screws. A cable 6 connects the bar to the supply lead 4. The clamp is positioned in a recess 9 in the side support 2 of a heald frame. If two contact bars are required the recess extends through the support 2 and a second part 8 is arranged on the other side of the part 7. The parts 7, 8 may, in a modification, be formed in one piece with a slot for the bar 3 and have a screw to tighten the clamp about the bar. The clamp may be secured directly on to the support 2 instead of in the recess. Specification 766,322 is referred to.
Patent GB-268957-A (GB)
Title: Appliance for adjusting or clamping gas retort doors
IPC: C10B25/04
Filed: 1926-03-31
Abstract: 268,957. Clark, R. G., and Pass, E. March 31, 1926. Retort and like doors. -A readily attachable clamp for temporary use with gas retort doors comprises a U-shaped structure a with limbs having bent over extremities a' to engage the retort flange c, and screws b adapted to press the door d against its seat. One limb may be secured by a screwed stud a<3> and may be adjustable in a slot a<4>, or the device may be made in similar halvesone of which is adjustable on the other.
Patent GB-1028582-A (GB)
Title: Identifying, indicating, monitoring and control circuit arrangements
IPC: G08B25/01
Filed: 1962-03-08
Abstract: A residual petroleum fule oil composition consists of (i) a petroleum base oil having a viscosity of 5-250 c.s gravity (60 DEG  F./60 DEG F.) of 0.85-1 and containing a substantial proportion (e.g. at least 40%) of a distillation residue, and (ii) 0.005-1 weight per cent based on the total composition of a mixture of an alkali metal naphthenate and an alkali metal petroleum sulphonate. A typical component (i) is a blend of 70 weight per cent of distillation residue and 30 weight per cent of gas oil, but kerosine may also be present.
Patent GB-938623-A (GB)
Title: Improvements in paper pattern grading machines
IPC: A41H3/00
Filed: 1961-09-29
Abstract: 938,623. Pattern grading machines. WILLCOX & GIBBS SEWING MACHINE CO. Sept. 29, 1961 [June 5, 1961], No. 8888/63. Divided out of 938,622. Class 141. The subject-matter of this Specification is the same as that of Specification 938,622, apart from the omission from the claims and description of any reference to the decoupling 42a, 42b.
Patent GB-1380197-A (GB)
Title: Phenolic flavouring agent for tobacco
IPC: A23L27/20
Filed: 1972-01-19
Abstract: 1380197 Flavouring tobacco &c FIRMENICH SA 19 Jan 1972 [19 Jan 1971 23 June 1971 11 Jan 1972] 8893/73 Divided out of 1380191 Headings A2B and A2C 2-hydroxy-5-methylacetophenone, alone or together with 2-methyl-5-isopropenylanisole, is used for flavouring tobacco or tobacco substitutes, or is mixed with at least one other flavouring agent to form a flavouring composition.
Patent GB-287537-A (GB)
Title: Plant for transhipping heavy goods, more particularly plant for the coaling of ships
IPC: B65G65/28
Filed: 1928-03-23
Abstract: 287,537. Demag Akt.-Ges. March 23, 1927, [Convention date]. Elevated railways. - In plant for transhipping coal, bunkers 17 and loading conveyers 21 are carried by frames 18 travelling along both sides of an elevated railway 15 on the centre of the pier D. The frames 18 may be transferred from one side to the other on a platform 25 pivoted on a vertical axis 26.
Patent GB-798028-A (GB)
Title: Process for the production of dichlor butenes
Inventor: BELLRINGER FREDERICK JAMES
IPC: C07C17/02
Filed: 1956-03-22
Abstract: Dichlorobutenes are prepared by the additive chlorination of butadiene in the vapour phase in a process which comprises contacting chlorine with butadiene, in the ratio of at least one mol. of butadiene per mol. of chlorine, at an elevated temperature in the presence of added hydrogen chloride.  Advantageously at least 5 per cent and preferably between 30 and 50 per cent by volume of hydrogen chloride is present in the mixture.  The hydrogen chloride is preferably fed to the reaction mixture in admixture with the butadiene feed.  The reaction temperature may be between about 150 DEG  and 450 DEG  C. and the reaction is preferably continuous.  The process may be carried out at subatmospheric, superatmospheric or, preferably, atmospheric pressure.  The reaction product is preferably fractionated to recover a fraction containing butadiene and hydrogen chloride, which is recycled. The concentration of hydrogen chloride in this recycle stream tends to increase owing to the small amounts of hydrogen chloride formed by substitution reactions.  The hydrogen chloride concentration may be kept at the desired level by bleeding off a small part of the recycle stream and separating the hydrogen chloride from the butadiene by known methods.  In examples a mixture of butadiene and hydrogen chloride was passed through a preheater into the bottom of a heated tubular reactor, chlorine also being introduced at the bottom of the tube, the reaction products were passed to a fractionating column at the head of which butadiene and hydrogen chloride were removed and recycled and at the base of which the butadiene chlorination products, i.e. about 90 per cent dichlorobutenes (3 : 4-dichlorobutene-1 and 1 : 4-dichlorobutene-2) and about 10 per cent of lowboiling material, e.g. chloroprene and 1-chlorobutadiene and high-boiling material, were removed.  In one example the hydrogen chloride was replaced by nitrogen for comparative purposes.  Specification 798,027 is referred to.
Patent GB-610317-A (GB)
Title: Improvements in or relating to thermometers
IPC: G01K13/02
Filed: 1945-04-11
Abstract: 610,317. Measuring temperature. WEST, H. E. W., and MARSDEN, J. R. April 11, 1945, No. 9031. [Class 40 (i)] [Also in Group XXXVI] A thermometer for measuring the temperature of a stream of gas, such as that in the jet pipe of a jet engine, includes a resistance element shaped in a simple geometrical pattern and disposed to extend throughout a representative crosssection of the stream. Figs. 1-3 show an arrangement in which a loop of resistance wire 11, such as platinum, is insulated from an enclosing tube 10 which may have a streamlined cross-section by porcelain beads 12, the remaining space being filled with a suitable insulating powder or cement. The wire may also be coated with a heat-resisting material. Tube 10 is bent in the form of a ring having a diameter in the order of threequarters of that of jet pipe 15, and is supported by means of welded brackets 16 screwing into streamlined struts 19 secured in position by caps 21. The ends of wire 11 are fixed to stouter wires 22 brought out through twin bore tube 23 to a junction-box (not shown). Instead of being looped, wire 11 may be formed into a spiral (as in Fig. 7, not shown). In a modification (Figs. 5, 6, 7 and 8, not shown), the wire 11 and beading 12 may be mounted in a streamlined tube having holes drilled in its back and front, the former being smaller and staggered with respect to the latter to obtain a diffused gas flow. One or more such tubes may be arranged chordally or diametrically in the jet pipe. The changes in resistance corresponding to temperature variations may be measured on a Wheatstone bridge, or similar device. Alternatively, the changes in resistance may be used to operate electronic engine control circuits or operate safety devices in the event of abnormal conditions.
Patent GB-369747-A (GB)
Title: Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked
IPC: B21D28/24
Filed: 1931-03-25
Abstract: 369,747. Making fencing. McDONALD & CRESWICK, Ltd. and McDONALD, W., 20, Harrison Road, Edinburgh. March 25, 1931, No. 9100. [Classes 83 (ii) and 83 (iv).] Perforating; punches &c.-In punching inclined holes in raked stair railings, the flat bar 18, provided with holes 19, is supported on a bolster 10 slidable on a support 6. The punch 16 has an inclined face 16b which co-operates with a die-plate 10a on the bolster in the manner shown in Fig. 5. The bolster is positioned against a screw 11 and is moved laterally by the action of the punch or mechanically. When the holes have been bevelled on one side, the rod is reversed and the operation repeated on the other side 23, Fig. 5.
Patent GB-1503693-A (GB)
Title: Process for the removal of sulphur dioxide from a flue gas stream by means of a solid acceptor
IPC: B01D53/04
Filed: 1975-03-05
Abstract: 1503693 Removal of SO2 from flue gas SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 5 March 1975 [7 March 1974] 9137/75 Heading C1A Sulphur dioxide is removed from flue gas by means of a solid acceptor which accepts SO 2  and from which it is subsequently regenerated with a reducing gas, the process being carried out in two or three equally large main reaction zones comprising the said acceptor of which at least one of said zones, and at most two, is/are connected to the flue gas stream such that the main zones are alternately subjected to a regeneration treatment with the exclusion of flue gas; the process being characterized in that an auxiliary reaction zone having an acceptor is included, the auxiliary zone being shorter in length than, and connected in front of, the main reaction zones, and in which the auxiliary zone is subjected to regeneration during the short intervals between regeneration periods of the main reaction zones. The solid acceptor may consist of a ceramic carrier impregnated with Cu, with the regeneration and acceptance treatments undertaken at between 200‹ and 600‹ C.
Patent GB-567247-A (GB)
Title: Improvements in pressure reducing valve devices
IPC: G05D16/10
Filed: 1943-06-08
Abstract: 567,247. Pressure-reducing valves. HOLDEN & HUNT, Ltd., HOLDEN, R. W., and POOLE, J. W. June 8, 1943, No. 9198. [Class 135] In a pressure-reducing valve the valve member 4 which coacts with a knifeedge seat 3 on an inner ring 2 connected by a web with an outlet 5 is connected by a spindle 6 passing through the seat orifice to a piston 7. The piston is adjustably loaded by a spring 10 and is provided with passages 14 to admit outlet pressure to the space behind the piston packing. The spindle also carries a balancing piston 8 working in a bore in a ring 9 screwed into the lower part of the casing.
Patent GB-880119-A (GB)
Title: Improvements in or relating to counting circuits
Inventor: REED JOHN
IPC: H03K23/76
Filed: 1959-03-17
Abstract: 880,119. Digital electric calculating apparatus. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 21, 1959 [March 17, 1959], No. 9258/59. Class 106 (1). [Also in Group XL (c)] A counting circuit comprises at least four saturable ferromagnetic cores arranged in two sets each of at least two cores, each core having a winding which is energized by pulses of a predetermined polarity which are to be counted, to change one of said cores from one state of magnetic remanence to the other, means for producing a control pulse, in response to the change of state of that core, which is applied to two further windings, one on each of two other cores one in one set and one in the other, and means to ensure from which set a core shall change state. The algebraic sum of a number of pulses is indicated by a change from a " 0 " state to a " 1 " state of one of 2xn array of ferromagnetic cores. The device includes eleven two-state cores A, B, C, D, E, G, F, A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP> and H each carrying four windings, wired as shown, functioning as drive, input, output and feedback windings and denoted by suffixes D, I, O and F respectively. Further, the two groups of cores A, B, C, D, E and G, F, A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP> have common bias windings BL1 and BL2 respectively. Initially all the cores except H are in their " 0 " state, H being in its " 1 " state. The first pulse of those to be counted is applied to input T1, and is of a polarity such that it tends to switch all the cores to their " 0 " state. Since H is the only one not already in this state it alone is switched. An output pulse is generated in winding HO to open a normally closed transistor K, which conducts to allow a normally charged condenser C3 to discharge through the input windings CI, A<SP>1</SP>I of two cores C, A<SP>1</SP>. A bias current applied on one of the lines BL2, BL1, determines whether core C or core A<SP>1</SP> is switched to its " 1 "state according to whether additive or subtractive counting is to be performed. Suppose that core C is switched over. The next of the " count " pulses applied to input T1 initially returns core C to a " 0 "state, the appropriate transistor opens, and in a manner similar to that described above, one of the cores D or B<SP>1</SP> changes to state " 1." A change over of core D is regarded as an additive operation, whilst a change over of B<SP>1</SP> is regarded as subtractive. Tappings may be made from the bases of the transistors, e.g. at J, to indicate the state of each associated core, and hence the count. To reset the device pulses are added until the initial state is reached. The invention is described as used in a device arranged to follow the phase of an input signal without being affected by random short-term variations.
Patent GB-308366-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1928-10-02
Abstract: 308,366. Associated Telephone & Telegraph Co. Oct. 8. 1927, [Convention date). Divided on 298,474. Drawings to Specification. Automatic exchange systems. - Relates to systems for small exchanges in which the calling and wanted lines are connected over lineswitches to opposite ends of the same feed-relaygroup. the called line being selected by a temporarily-used impulse-recorder. In one system, plunger-type line-switches controlled by a master-switch are employed, and either the same line-switches and a single master-switch are used for both incoming and outgoing calls or two line-switches controlled by separate masterswitches may be associated with each line. In another system employing rotary line-switches of the usual type, calls to or from a main exchange are established over the local subscriber's line-switch, or local feed-relay-group, and a line-switch associated with the local end of a two-way inter-exchange junction. The invention is described with reference to systems identical with those described in Specification 298,474.
Patent GB-256530-A (GB)
Title: Improvement in fluid compressor unloaders
IPC: F04B49/16
Filed: 1926-04-08
Abstract: 256,530. Ingersoll-Rand Co., (Assignees of Bayles, L. C.). Oct. 10, 1925, [Convention date]. Regulating compression.-To unload a compressor in steps, the valve of a clearance chamber for one end of the cylinder is first opened then the clearance valve is closed and an inlet valve at the opposite end is held open next the clearance valve is reopened and finally the clearance valve is closed and the inlet valves at each end are held open. The clearance chamber a is controlled by a valve b provided with a spring-pressed piston moving in a cylinder d. The valve is opened by pressure fluid supplied to the front of the piston through a pipe j; and leak h allows the piston and valve to be returned by the spring when the fluid supply is cut off. The inlet valves F, G, can be held open by two fingers K, L, secured to pistons 0, P operated against spring pressure by fluid supplied to their cylinders through pipes W, X. All these pipes receive fluid supply in accordance with the pressure in the receiver E, which is supplied from the compressor and delivers through a pipe k to a cylinder Y containing a ported piston valve which controls the ports in the cylinder leading to the pipes.