baber/WOPTO huggingface dataset:
Patent GB-937141-A (GB)
Title: Reciprocating fluid motor
IPC: F01B17/00
Filed: 1960-04-27
Abstract: 937,141. Engine valve-gear. STEWART-WARNER CORPORATION. April 27, 1960 [April 28, 1959], No. 14816/60. Class 122 (2). The distributing valve 54 of a reciprocating fluid-pressure engine is controlled by a reciprocating actuator 56 having a lost motion connection with the valve and moved rapidly from its central position to either extreme end position by an overcentre toggle mechanism which is loaded by a spring 150 and when the actuator is in and adjacent its central position is also loaded by an additional spring 152. A toggle mechanism is provided on opposite sides of the actuator 56 and comprises a toggle link 124 pivotally connected between the actuator and a piston 128 which is slidable in a cylinder 138 and loaded by the spring 150 and also by the additional spring 152 when the actuator is in and adjacent its central position, the piston then being in the outer part of its stroke. The spring 152 becomes ineffective when, during the inward movement of the piston, its abutment washer 148 contacts the end 146 of the cylinder 138. The actuator is moved from its end positions to its central position by shoulders 108 and 110 on a rod 33 having a lost motion connection with the actuator. The rod 33 also has a lost motion connection with the engine piston 34. The subsequent rapid movement of the actuator by the toggle mechanism is transmitted to the D valve 54 by spaced flanges 98 and 100 on the actuator contacting surfaces 94 and 96 respectively of a projection 94 on the valve. Ports 76 and 80 communicating with opposite ends of the cylinder 12 are alternately connected with pressure supplied through port 68 and with the exhaust port 74 by the valve 54 which slides between guides 86 and is held in its operating positions by spring-loaded balls 116 engaging V-slots 114 in the valve.
Patent GB-328811-A (GB)
Title: Pressure indicators
IPC: G01L9/00
Filed: 1929-05-13
Abstract: 328,811. Rotherham, K., and Eyles, A. E. May 13, 1929. Indicating in connection with. - A switch actuated by the pressure in a lubricating system, for controlling an electric circuit containing an indicating device, comprises a resilient conducting bridge 20 in the form of a flat or dished spiral spring co-operating with a pair of fixed contacts 22 and secured to the stem of a spring-pressed plunger 13 of insulating material movable in a cap 14 screwed in a casing 2, through the intermediary of a headed stem 9, by the oil pressure acting, through a passage 4, on the underside of a dished diaphragm 5 clamped in the closed lower end of the casing by a screwed ring 7. As shown, the circuit is closed whenever the oil pressure falls below a predetermined amount, but the arrangement may be such as to give the converse effect.
Patent GB-593772-A (GB)
Title: Improvements in friction gearing
IPC: F16H13/02
Filed: 1945-06-12
Abstract: 593,772. Friction gearing. RABINOVIC, G. June 12, 1945, No. 14861. [Class 80(i)] Parallel shafts 4, 5, are connected by friction gearing comprising pulleys 1, 2, each having one or more V-shaped grooves and an endless belt or belts 3 of diamond shaped cross section engaging the grooves and surrounding one of the pulleys. In another arrangement, one pulley and the belt surrounding it is disposed within the other pulley which is internally grooved. Specification 237,677, [Class 80(i)], is referred to.
Patent GB-1034598-A (GB)
Title: Production of propylene oxide and acetic acid
Inventor: SORRIE ALEXANDER JAMES STRATH
IPC: C07C51/235
Filed: 1964-04-10
Abstract: Propylene oxide and acetic acid are made by contact between propylene acetaldehyde and molecular oxygen-containing gas in the liquid phase at a temperature from 40 DEG  to 150 DEG  C., preferably 90 DEG  to 130 DEG  C., and in a solvent comprising a mixture of methyl acetate and methanol, preferably in the weight ratio 80:20, or a mixture comprising one or more esters, especially the diacetate, of propylene glycol, which esters may be the by-products of the reactions which may in part be recirculated after removal of products boiling below 140 DEG  C. Another portion of these by-products can be hydrolysed to propylene glycol and acetic acid. The preferred oxidation pressure is at least 40 ats., especially 80 to 100 ats.  The examples use cobalt naphthenate as catalyst.
Patent GB-1102281-A (GB)
Title: Spray shower assembly with self cleaning nozzle
IPC: B05B1/32
Filed: 1965-04-08
Abstract: 1,102,281. Spray-producers. BROUGHTON CORPORATION. 8 April, 1965 [22 April, 1964], No. 14946/65. Heading B2F. In a spray shower assembly for a paper making machine the white solid-bearing water issues from nozzles 30 arranged along a spray tube 10 after passing through strainers 13 and a supply conduit 11. The latter incorporates a valve 14 having a diaphragm 16 forming a water passage therethrough of varying diameter. This diameter is changed through the operation of a compressed air system which through actuation of a manual control valve 22 or an automatically controlled valve 23 allows the pressure of air surrounding the diaphragm to build up or decrease. Normally the air pressure is high but when it is desired to clean the nozzles 30 by blowing therethrough any accumulated solids, this pressure is decreased thereby allowing the full pressure of the white water supply to reach the spray tube 10. In order to effect such cleaning each nozzle incorporates a rubber nozzle defining disc 42 having a slit 46 and walls surmounting the slit such that liquid issuing therethrough is shaped into a thin fan shaped spray. In plan view, Fig. 3, not shown, the walls form two adjoining ellipses. In a modification, Fig. 5, not shown, a liquid filled vertical conduit 60 extends from each nozzle into the tube 10 such that any pressure variation on the valve diaphragm 16 has instant repercussion at the nozzle. In yet a further embodiment valve arrangements are such that cleaning of the nozzles is effected by blowing air through the spray tube 10 whilst the white water supply is shut-off.
Patent GB-513717-A (GB)
Title: Improvements in or relating to apparatus for feeding cigarettes and other rod-shaped articles
IPC: B65B19/10
Filed: 1938-05-19
Abstract: 513,717. Delivering rod-shaped articles from hoppers; packeting-machines. FOALE, A. A., and MOLINS MACHINE CO., Ltd. May 19, 1938, No. 14949. [Class 78 (i)] [Also in Group XVII] In apparatus of the type in which rod-shaped articles are delivered in rows from a hopper between a series of partitions, the upper portions of some of the partitions are movable mainly in the plane of the partition to guide and direct the articles between the partitions. Fig. 1 shows a hopper 8 which delivers cigarettes between the partitions 10 to a reciprocating pusher 11. The upper parts 14 of alternate partitions are pivoted at 15, Fig. 2, and operated in timed relation by cams 18 on a common shaft 19 against the action of restoring springs 22. The semi-circular ends of the members 14 fit into correspondingly shaped recesses in the upper edges of the fixed parts of the partitions. In some cases, cam mechanism may be used to impart an axial movement to the spindle 15 to give the members 14 an additional movement at right angles to the fixed partitions. A further additional movement is obtained as shown in Figs. 3 and 4 by mounting the members 14 on spherical bearings 47 on the shafts 15 and providing a projection 49 to engage a wavy groove 48 in the cam 18. This causes a rocking motion of the members 14 on the bearings. Stirring- apparatus 9 of the kind described in Specification 471,521 is fitted in the hopper, and a cam 38 on the stirrer shaft is used to drive members 44 which push the rows of cigarettes emerging below the partitions into close lateral contact so that all may be engaged by the pusher 11.
Patent GB-268192-A (GB)
Title: Improvements in the lubrication of valve push rods as used on internal combustion engines
IPC: F16N9/04
Filed: 1926-06-15
Abstract: 268,192. Marston, Ltd., J., and Dudley, J. A. June 15, 1926. Force-feed lubricating.-A tubular push rod 2 for use in the valve mechanism of an internal-combustion engines serves as a container for a charge of lubricant which is caused to exude through passages 7 in the end bearing member 3 by plungers 12 subjected to the action of springs 10, 11 abutting against a partition plate 9. In a modification, the plate 9 is dispensed with and the springs 10, 11 are replaced by a single spring arranged between the plungers. The passage 7 at the lower end of the rod may be smaller than that at the upper end.
Patent GB-552819-A (GB)
Title: An improved carrier current communication system
IPC: H04B3/56
Filed: 1941-11-21
Abstract: 552,819. Distributing music &c. RADIO GRAMOPHONE DEVELOPMENT CO., Ltd., and DUFFELL, H. F. Nov. 21, 1941, No. 15041. [Class 40 (iv)] [Also in Group XL] In a system for the distribution over a power circuit &c. of carrier current modulated with matter from a microphone, gramophone or wireless receiver, the final L.F. amplifier f is separated from themodulator l and is coupled to it by a line h having matching transformers q, f at its ends. The modulator l comprises push-pull tetrodes to the signal grids of which high-frequency oscillations are fed from a source not shown, the anodes being supplied with L.F. signals from the transformer and the screen grid also receiving signal currents from a tapping point t about a third of the way along the winding.
Patent GB-529075-A (GB)
Title: Improvements in valve operating mechanisms for engines
IPC: F01L1/18
Filed: 1939-05-20
Abstract: 529,075. Valve gear. FABBRICA AUTOMOBILI ISOTTA FRASCHINI, and TEBALDI, A. May 20, 1939, No. 15064. Convention date, May 21, 1938. [Class 7 (vi)] [Also in Group XXVI] In valve gear having a rocker or lever arranged between the cam and the end of the valve stem, the rocker is mounted on its spindle so that it can be displaced laterally for obtaining access to the adjustable shims on the valve stem, the rocker being held in position by a removable clip. Fig. 3 shows the rockers 5 of a pair of valves mounted on a spindle 6 with the clip 10 between the hubs 9 of the two rockers, so that when the clip is removed, either rocker may be moved laterally out of the way of its valve. The clip may consist of two halves 10 connected to a spring 11.
Patent GB-680254-A (GB)
Title: An improved method of and device for delivering liquids from sealed cans, and like containers
IPC: B67B7/86
Filed: 1950-06-17
Abstract: 680,254. Emptying sealed cans and like containers; can openers. PEARSON, H. M. June 17, 1950, No. 15204/50. Classes 21 and 66 A device for pouring the contents from sealed metal containers comprises two tubular piercing implements, attached to a head portion fitting over the container, one implement forming a pouring aperture and the other a vent. In one embodiment, the implements 11, 12 are secured in a casing, through the open end of which the container C is pressed to be held within by spring biased plates 21. Finger openings 19 permit removal of the container. In further embodiments (not shown) the plates 21 are replaced by spring fingers secured to the casing walls, or the casing may cover only the upper part of the container and grip it frictionally. In a further embodiment, a sliding plate valve 31 may close both orifices.
Patent GB-839846-A (GB)
Title: 4-hydroxy phenothiazine and a process for the production thereof
Inventor: SCHMITT JOSEF
Filed: 1956-05-16
Abstract: The invention comprises 4-hydroxy-phenothiazine and a process for the production thereof wherein 2-hydroxy-diphenylamine is subjected to fusion with sulphur.  In an example the reaction is effected at 170-175 DEG  C. under nitrogen and in the presence of iodine.
Patent GB-402147-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: G05D23/08
Filed: 1932-05-30
Abstract: 402,147. Discharge devices. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Payne, J. H.; 79, West Street, Balston Spa, New York, U.S.A.) May 30, 1932, No. 15322. Convention date, May 29, 1931. Addition to 401,379. [Class 39 (i).] To control automatically the temperature of the gas or vapour filling of a discharge device by means of a bimetallic strip as described in the parent Specification, the device is enclosed within a box 2 provided with openings 4 of which one or some only are provided with shutters 3, the position of the shutters being adjusted by means of one or more thermal responsive elements 7. The box may be formed of metal or asbestos and the position of the shutters is adjusted initially by a screw 9. The temperature of the device may be maintained by means of an auxiliary heater.
Patent GB-546266-A (GB)
Title: Improvements in and relating to electromagnetic switches, particularly for use as starting relays for alternating current motors
IPC: H01H50/32
Filed: 1941-11-28
Abstract: 546,266. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Nov. 28, 1941, No. 15338, [Class 38 (v)] An electromagnetic switch specially adapted for use as a starting relay with split-phase A.C. motors having a running winding 45 and a starting winding 46, has normally closed contacts 23, 24 which remain closed when a switch 49 is operated and the large " starting " current flows through the operating winding 13 of the electromagnetic switch, the contacts only opening when the winding 13 is partially de-energized due to the motor speeding up. When finally the switch 49 is opened, the contacts again close and the switch is restored to its original position. The magnet 13 has a pole 14 which attracts an armature 17 mounted on a cantilever spring 19 and carrying the contact 23. The co-operating contact 24 is mounted on a spring 25 and tends always to engage the contact 23. When the. armature is attracted both contacts move down and the spring 25 is held against return by the shoulder 39 of a latch which is biased to move in a clockwise direction about a pivot 36. Partial de-energization 'causes the armature to move back part way, the contact 23 moving away from the contact 24. Full de-energization causes the armature to return to its original position and a pin 41 carried by the armature moves the latch so that this releases the spring 25 and the contacts 23, 24 re-engage.
Patent GB-272042-A (GB)
Title: Improvements in telephone receivers
IPC: H04R13/02
Filed: 1926-06-18
Abstract: 272,042. Bussell, S. W. June 18, 1926. Receivers. - A watch case type receiver is provided with a removable perforated ear cap c adjustably clamping a flexible diaphragm q and a removable closed rear cap d and the casing b is formed with an annular foundation plate or partition a to the rear of which the magnet e is secured and the pole-pieces f protrude through the plate a. An annular flange a<2> may be provided on the plate a for strengthening purposes and the shallowness of the air chamber behind the diaphragm q gives improved acoustic effects. A rotary switch l may also be provided having an arm k, Fig. 4, adapted to short-circuit ramp providing contact springs n, Fig. 5, mounted on an insulating disc o the ends of the springs n being adapted to make connection with the ends of the windings of the electromagnets g.
Patent GB-1338216-A (GB)
Title: Process for the preparation of cyclopropylmethyl-n-alkylamines
IPC: B01J23/00
Filed: 1970-12-03
Abstract: 1338216 Cyclopropylmethyl - N - alkylamines ESSO RESEARCH & ENG CO 3 Dec 1970 [28 Aug 1970] 15446/73 Divided out of 1336860 Heading C2C Cyclopropylmethyl - N - alkylamines of the formula wherein R 1  is H or C 1  to C 4  alkyl and each of R 2  and R 3  is H or alkyl, are obtained by reacting a cyclopropylmethylamine of the formula with a compound of the formula in the presence of H 2  and a catalyst. Preferred catalysts are Rh supported on carbon, unsupported copper chromite containing from 1 to 50% of barium chromite, or Cu supported on either an alumina or a siliceous support. Examples are given which illustrate the process. The cyclopropylmethylamine of Formula II may be obtained by reacting an allylic chloride with HBr in the presence of a free radical catalyst to form the anti-Markownikoff product 1-bromo- 3-chloro-propane which may be substituted with a C 1  to C 4  alkyl group, contacting this product with a metal cyanide to form a gamma-chloronitrile, reacting this gamma-chloronitrile with an alkali metal hydroxide to give cyclopropylcyanide or a C 1  to C 4  alkyl cyclopropylcyanide, and reacting the cyclopropylcyanide with H 2  to give the required primary amine.
Patent GB-155608-A (GB)
Title: Improvements in domestic washing boards
IPC: D06F1/00
Filed: 1919-11-14
Abstract: 155,608. Price, E., and Smart, S. Nov. 14, 1919. Washing-boards. -A corrugated metal rubbing-plate bent as shown, is furnished with one or more tubes b secured to the back of the plate and serving to drain the soap pocket c.
Patent GB-733641-A (GB)
Title: Improvements in or relating to photographic contact printing machines
IPC: G03F7/20
Filed: 1952-06-20
Abstract: 733,641. Photographic contact-printing apparatus. WENDT, O. June 20, 1952, No. 15594/52. Class 98 (2). In a photographic contact printing machine having at least two interchangeable pressure members each having a glass presser plate, one of the presser members is so constructed that the glass holds the negatives or the like in contact with the printing plate on a supporting table by the application of external pressure, and another pressure member is constructed for the production of a vacuum between the glass presser plate and the printing plate, means being provided at fixed positions on the machine for guiding and supporting either pressure member. As shown in Fig. 1, the pressure member 1 carrying the glass presser plate 13 for transmitting external pressure is located by guides 2 in a fixed frame 3. The member 1 is preferably square with the guides 2 at the mid-points of its sides. A spring frame 8, bearing by rollers 11 against blocks 12 on the frame 3, carries springs 7, adjustable by nuts 9 on spindles 10 and pressing member 1 and plate 13 against a negative 18 and a light-sensitive plate 5 on a fixed support. This arrangement is useful for smaller negatives; for larger negatives the member 1 is replaced by a member 1a, Fig. 2, carrying a glass plate 14 surrounded by sponge rubber sealing strips 15. The member has channels 17b connected to a suction pipe 17 and registering with apertures 15a in strips 15, to create a vacuum between glass plate 14 and the light-sensitive plate 5.
Patent GB-545463-A (GB)
Title: Improvement in door closers
IPC: E05F3/08
Filed: 1940-10-23
Abstract: 545,463. Door-operating appliances. YALE & TOWNE MANUFACTURING CO. Oct. 23, 1940, No. 15605. Convention date, Nov. 2, 1939. [Class 65 (i)] In a door-closer of the kind comprising a closing spring 57 and a fluid check 30 enclosed in a casing 22, the casing is connected to the door so as to be rotated thereby during its movements, while the shaft 27 to which the inner end 60 of the spring is fixed is held stationary. The tension of the spring is adjusted by a ratchet 68 through gear-wheels 65, 64, and the fluid check valve spindle 55 is adjusted by a head 76 through gear-wheels 74, 73, 72. The apparatus may be mounted on a bracket 82 on the door lintel. Specification 542,467 is referred to.
Patent GB-839940-A (GB)
Title: Nuclear reactor control
IPC: G21C7/00
Filed: 1958-05-15
Abstract: 839,940. Nuclear reactor control. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 15, 1958 [May 16, 1957], No. 15659/58. Class 39(4). [Also in Group XXXV] Cyclic variations of small amplitude are imposed on the multiplication factor of a reactor and the resulting variations in neutron density or a related parameter are observed. The time lag between the two sets of variations, which is a measure of the reactivity of the reactor, is measured and used to control the reactor. The variations in the multiplication factor are produced by reciprocating an absorber 2 in the reactor; the mechanism 4 simultaneously produces square pulses. The variations in neutron density are detected by an ionisation chamber 8 whose output is turned into square pulses. The two sets of square pulses and a train of clock signals at a much higher frequency are put into a gating circuit 14 so that the clock signals are passed to an output only during the time between corresponding pulses of the two low frequency trains. The output thus consists of trains of clock pulses whose lengths are a measure of the reactivity. The number of pulses in a train is counted at 21a [and 21b and the count either displayed at 31 or used to operate the reactor controls through a servo 34. A variable phase shift device 5 may be incorporated in the multiplication factor variation circuit, so that the reactivity can be varied-for example, by a preset controller 33. Safety rods 38 and trips are provided.
Patent GB-712665-A (GB)
Title: Improvements in devices for the transmission of power from the engine of a motor vehicle to the driven wheels thereof
Inventor: GUSTAFSON CARL HENNING EMANUEL
IPC: F16D13/50
Filed: 1952-06-20
Abstract: 712,665. Flexible couplings. AKTIEBOLAGET VOLVO. June 20, 1952, No,. 15660/52. Class 80 (2) The driven plate 9 of a motor-vehicle friction clutch is splined on a tube 11 within which is secured one end 18c of a torsion rod 18 the other end of which is secured to the hub 13 of the gear-box input pinion 14, the tube 11 being journalled in the hub 13 and having projections 20 engaging with lost-motion in slots in the hub 13. Teeth on an intermediate portion 18b of the rod 18 engage with lost-motion between teeth in the sleeve 11, the part 18a of the rod 18 between the portions 18b and 18c being of reduced diameter. The arrangement is such that, at low torque, drive is transmitted through the clutch and tube 11 wholly to the portion 18c and thence through the rod 18 to the gear 14, without resonance. Above a predetermined torque, the twisting of portion 18a is such that the lost-motion at 18b is taken up and the excess torque is transmitted direct from tube 11 to the portion 18b and thence through rod 18, without resonance. At abnormal torques, the lost-motion, at 20 is taken up and drive is then transmitted also direct from tube 11 to gear 14. Spring means may be embodied in the plate 9, in place of the reduced portion 18a. Specification 524,669 is referred to.