baber/WOPTO huggingface dataset:
Patent GB-422944-A (GB)
Title: Thermostatic regulator
IPC: G05D23/12
Filed: 1934-03-02
Abstract: 422,944. Valves; thermostats. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Wilcolator Co. ; 17, Nevada Street, Newark, New Jersey, U.S.A.) March 2, 1934, No. 6781. [Class 135] [See also Group XIII] in the thermostatic control of an oven, a second thermostat is arranged so as to compensate for the effects of outside temperatures (due for instance to other burners) on the main thermostat. The second thermostat may be arranged to over-compensate in order to account also for the pressure drop in the gas supply to the oven when exterior burners are lit. In Fig. 2, the main thermostat comprises a copper bulb 16, a flexible capillary copper tube 17, and a metal bellows 49, which are filled with fluid through a tube 56, and controls through a spring-urged rod 44 connected to the bellows-end 48, the valve 30 between the gas-inlet 18 and the outlet 21 to the oven-burner. The second thermostat, consisting of a U-shaped bimetallic strip 43, is interposed between the rod 44 and the valve 30, being connected to a disc 41 which disc is pivoted on a screw 39 and between which disc and the valve 30 a spring 42 is placed. The valve 30 slides on a nut 38 on the screw 39 and is adjusted by turning a knob 33 until keys 40 on the nut engage the valve member. A byepass 57, also connected at 23 to the pilot burner, prevents extinguishing of the oven burner when the valve 30 is nearly closed. In Fig. 3, the main thermostat comprises bulb 16<1>, flexible tube 17<1>, and internal bellows 72, and controls the valve 63 between the inlet 18 and outlet 21 through the compensating thermostat consisting of bimetallic strip 77 fulcrumed at 78. Adjustment is effected from the knob 68 which rotates nut 69.
Patent GB-1464597-A (GB)
Title: Phials having stoppers
IPC: B65D55/02
Filed: 1975-02-14
Abstract: 1464597 Tamper proof resilient plug closure DEFENCE SECRETARY OF STATE FOR 14 Feb 1975 [14 Feb 1974] 6801/74 Heading B8T A phial 10, e.g. of plastics is fitted with a tamper-proof stopper that comprises a blind hole 17 and an elastically deformable lower portion that engages under the inner end of the phial opening after being press-fitted. The length of the stopper and opening are such that the stopper does not project beyond the upper end of the opening. The stopper may have a circumferential, triangular cross-section notch 15 as shown or a circumferential step. The entire stopper may be resilient, the upper and lower portions thereof may be of the same diameter, its upper end may be flush with the upper end of the opening, it may be of polyethylene or polypropylene and it may taper inwardly with the opening. The stopper can be inverted and used as a temporary seal prior to filling.
Patent GB-743534-A (GB)
Title: Improvements in or relating to electrical conductivity testing apparatus
Inventor: FARISON ROBERT EMANUEL
IPC: G01N27/07
Filed: 1953-03-12
Abstract: 743,534. Controlling caustic concentrations. DIVERSEY CORPORATION. March 12, 1953, No. 6817/53. Class 86. [Also in Groups XXXV and XXXVI] In an arrangement for maintaining constant the concentration of a washing solution such as the caustic solution in a bottle-washing machine by utilising the change in conductivity of the working solution, a cell for measuring the conductivity, Fig. 4, has a tubular electrode 62 connected to a tube 30 of insulating material to form a single channel through which the liquid under test may be made to flow in order to keep the surface of the electrodes clean. The conductivity cell, Fig. 4, which comprises two lengths of insulating material 60, 61, and a centre electrode 64 is included in a Wheatstone bridge circuit, Fig. 3, with a tube 31 of standard solution and two balancing resistors 53, 54. Unbalance of the bridge by a weak solution energises, through amplifiers 43, 47, a relay 50 which controls a solenoid operated valve 24 in branch 23, Fig. 1, to introduce more solute into the washing machine feed 22. The valve 24 controls a spray 18 which directs some of the circulating liquid at a screen'14 in the bottom of a hopper 13 containing the solute and the resulting highly concentrated liquid which falls into a collection pot 19 is drawn into the feed pipe 22 by an ejector valve 25. The circulation is forced by an electrically driven pump 20 and indicator lights 36, 37 show whether the pump is switched on, and the condition of valve 24 respectively. Temperature compensation is effected by passing the working liquid through a jacket around the tube of standard solution.
Patent GB-142250-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/30
Filed: 1919-03-20
Abstract: 142,250. Cloud, J. W. Marc 20, 1919. Fluid-pressure. - In a triple valve provided with a bulb 17 into which fluid under pressure is vented from the train-pipe 8<1> when an application is made, as described in Specification 24387/11, the venting is arranged to be effected by means of the graduating slide valve 6, before movement of the main slide valve takes place, through passages 8, 10, 12 (shown in dotted lines), L-cavity 7 in the graduating- valve, and passages 13, 15, 16, thus causing a rapid response of the triple valve. In the release position shown, the bulb 17 is in communication with the atmosphere at 19 through the passages 16, 15, 13, L-cavity 7, and passage 18.
Patent GB-576919-A (GB)
Title: Improvements in or relating to wall boxes and junction boxes for use in connection with electrical wiring conduits
IPC: H02G3/08
Filed: 1944-04-15
Abstract: 576,919. Junction boxes. CRABTREE & CO., Ltd., J. A., HARRISON, B. G., and MORGAN, R. W. April 15, 1944, No. 7008. Addition to 500,048. [Class 38 (i)] [Also in Group XXXVII] A shallow rectangular box for mounting on brickwork has a localized enlargement a formed at a corner to increase the depth and provide a circular conduit entry b in one or both of the outer walls c. A conduit entry may be formed in the flat bottom d of the enlargement
Patent GB-955070-A (GB)
Title: Improvements in or relating to solid fuel stoves
IPC: F24B1/18
Filed: 1962-02-23
Abstract: 955,070. Solid fuel stoves. VROLING'S FABRIEKEN EN HANDLEMAATSCHAPPIJ N.V. Feb. 23, 1962 [March 13, 1961], No. 7142/62. Heading F4W. A solid fuel stove has a horizontal grate 2 surmounted and surrounded by a firepot 1 and a fuel hopper 8 from which the fuel flows into the firepot in the form of a sloping bank of fuel 12. The firepot wall has openings 3 for primary air at its lower edge and further air openings 4 at a higher level located in the wall at the rear of the fuel bed. This section of the firepot wall has no lower combustion air openings 3 but is provided with a recess 13 which serves for the removal of ash and clinker &c. A projecting flange 6 is located immediately above the further air openings 4 and ribs 10 extend between the flange 6 and the firepot wall between the air openings 4. The combustion air supplied through the openings 4 maintains a combustion zone in the upper part of the fuel bank. The downwards movement of the ash from this zone is unobstructed by any part of the furnace installation. The firepot may be formed as a one-piece casting or may be in separable parts.
Patent GB-1523572-A (GB)
Title: Brake shoe for a loom shuttle brake
IPC: D03D49/54
Filed: 1977-02-21
Abstract: 1523572 Checking loom shuttles ADOLPH SAURER AG 21 Feb 1977 [29 March 1976] 07161/77 Heading DIE A brake shoe for a loom shuttle brake comprises a lining for exerting a braking action on the shuttle, the lining comprising resiliently deformable layer 2 and having a yieldability which decreases in the direction in which the shuttle arrives, in use, the layer 2 being mounted on a support 1. As shown, a rubber layer 2 is vulcanized to a rotatablymounted support 1 and has a covering comprising steel ribs 3 with rounded edges. The depth h of the layer 2 decreases in a direction A away from the selvedge and the width L of the ribs 3 is inversely proportional to h. In the leading portion of the braking surface, the ribs 3 increase in height in the direction A.
Patent GB-232931-A (GB)
Title: Improvements in or relating to distant liquid level indicating apparatus
IPC: G01F23/16
Filed: 1925-03-17
Abstract: 232,931. Guichard, L. April 24, 1924, [Convention date]. Indicators actuated by pressure of head of liquid.-The liquid level in a container is indicated by causing a definite increase in a space connected to an open-ended tube dipping into the liquid, and measuring the resulting decrease in air pressure. The variations in air pressure of the space due to fluctuations of level may also be used to indicate the level. The open-ended tube 3 has an enlargement 5, and is connected to a hand pump 1 and manometer 6, which may be at a distance. The two sides of the piston 9 are connected by a passage 8 to equalize pressures in the position shown. When the piston is moved to the right, the passage 8 is closed, and liquid is drawn up towards the vessel 5 to an extent dependent on the liquid level in the tank 4. The reduction of pressure shown on the gauge 6 is an indication of the liquid level. In a modification, the vessel 11, Fig. 3, is provided with a diaphragm 12, permeable to the liquid in the tank, e.g. petrol, and not to the liquid in the tube 3<1>, e.g. glycerine, or mercury. After operating the pump, a valve between the pump and manometer is closed and the changes in level are then continuously indicated. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a sensitive form of manomerter suitable for indicating the small pressure differences obtained. The chamber 13, Fig. 4 (Cancelled), is subjected to the pressure to be measured, and the diaphragm 15 carries a small piston 16 moving in a tube 17 connected to another chamber 18 containing glycerine. An increased pressure is thus transmitted to the diaphragm of the chamber 18. This subject-matter does not appear in the Specification as accepted.
Patent GB-604140-A (GB)
Title: Improvements in and relating to fish filleting machines
IPC: A22C25/16
Filed: 1945-03-22
Abstract: 604,140. Fish filleting machines. ATLANTIC COAST FISHERIES CO. March 22, 1945, No. 7293. Convention date, May 10, 1944. [Class 28(ii)] In projecting a partially filleted fish from the last disc slitting knives 10 by traction discs 14 on the fixed ribbing knives 20 which finally detach the flesh from the skeleton such as described in Specification 452,688, a deflector comprising a pair of fixed spaced tension mounted hold-downs 25-27 enter the slits and engage on each side of the back bone and directs the fish on to the ribbing knives 20. When the reaction pressure exerted by the back bone &c. due to its increasing thickness reaches the predetermined amount the hold-downs are raised sufficiently so that a cam follower 102 which has been stationary or oscillating on the cam 104 moves to a high point to release a dog 64 from its notch and so frees the connecting rod 52 from downward'pressure. When the fish has passed, the rods 52 &c. are free to drop down by gravity limited by a stop nut 118 engaging a plate 77, after which a spring 112 urges the dog 64 to lock into the notch 80 and so restores latching means into position for the next fish. The dog 64 is pivoted at 62 to the yoke of the rod 52. Adjustment of the lock nut 96, Fig. 3, alters the tension of springs 98 so adjusting the down pressure on the rods 52 of the hold-downs to suit the particular fish. The release tripping action is effected at a predetermined time by adjusting the position of the cam 104 by moving its slot 106 and clamping the screw 108 therein. Specifications 466,674, 502,291, 589,509, 591,723 and 597,237 also are referred to.
Patent GB-370601-A (GB)
Title: Improvements in or relating to bolt fastenings
IPC: F22B37/00
Filed: 1931-03-09
Abstract: 370,601. Washers. HENSCHEL & SOHN AKT. - GES., 2, Henschelstrasse. Casse], Germany. March 9, 1931, No. 7297. Convention date, Jan. 8. [Class 89 (i).] To ensure a gastight joint round a screw an annular washer d of soft material, e.g. copper, is enclosed in a recess in the bearing face of the nut. The bearing face of the washer is formed with a projection f. In a modification the groove g is ribbed, and may be of wedge-shaped section.
Patent GB-414606-A (GB)
Title: Improvements in or relating to lead alloys resistant to corrosion by acids
IPC: C22C11/00
Filed: 1934-03-07
Abstract: In order to impart to lead a high resistance to corrosion by hot sulphuric acid, it is alloyed with 0,01-0,1 per cent of tellurium and 0,01-0,15 per cent of copper, with or without up to 0,01 per cent of nickel or like metal.
Patent GB-826109-A (GB)
Title: Improvements in or relating to checking circuits for ring counters and the like
IPC: H03K21/08
Filed: 1958-03-07
Abstract: 826,109. Digital electric calculating-apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 7, 1958 [March 8, 1957], No. 7354/58. Class 106 (1). An error detecting circuit, upper half Fig. 1, is described for detecting the incorrect operation of a ring of triggers 16a-16n along which an " on " condition is advanced by ring drive pulses applied to a terminal 36. In operation after each ring drive pulse a sample and reset pulse is applied to a terminal 68 which tests the error detecting circuit to see whether an error has been detected and at the same time resets it for detecting further errors. The circuit comprises a first " or " circuit 42 which receives signals from the odd triggers of the ring (i.e. triggers 16a, 16c, 16e, &c.) and a second " or " circuit 44 which receives signals from the even triggers. Outputs from these " or circuits pass, inter alia, direct to an " and " gate 58 which is thus opened when both an odd and an even trigger are " on " simultaneously. Thus if this should occur after a ring drive pulse, the next sample and reset pulse will pass through a gate 66 to give an error signal. However, should two even triggers or two odd triggers both be " on " simultaneously this will not be detected by " and " gate 58, and the two " on " conditions will advance along the chain until the last trigger of the chain trigger 16n goes " on." The fact that another trigger is " on " together with trigger 16n will then be detected by an " and " gate 62 which has for one of its inputs the output of trigger 16n and for its other the mixed outputs of all the other triggers in the chain. Thus the next sample and reset pulse will produce an error signal. The error detecting circuit also includes a trigger 52 which is reset by each sample and reset pulses and whose condition is changed over each time a trigger in the ring goes " on." If the ring is functioning correctly after each ring advance pulse one trigger will go " on " thereby turning trigger 52 " on " (left-hand output low) and a gate 54, which also receives a " ring op " signal when the ring is operating, is closed. However, if after a ring advance pulse the " on " condition in the ring advance two positions then the trigger will first be turned " on and then turned " off " and this gate 54 will be open and the next sample and reset pulse will produce an error signal. If the ring is not operating, that is if every trigger thereof should be " off " then a " no ring op " signal is present and should a trigger of the ring go " on " (because of a spurious pulse) trigger 52 will be turned " on " to open a gate 56. A subsequent sample and reset pulse will therefore produce an error signal. The ring is advanced by negative pulses on a line 20 which pass through gates 18a to 18n to turn " on " one of triggers 16a to 16n and reset the immediate preceding trigger. With a switch 40 in the position shown the ring is open but it can be closed by operation of the switch.
Patent GB-289041-A (GB)
Title: Vehicles of the caterpillar and like types
IPC: B62D55/108
Filed: 1928-03-09
Abstract: 289,041. Rheinische Metallwaarenund Maschinenfabrik. April 22, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Endless-track vehicles.-Comprises an endlesstrack vehicle in which the load is greatest on the rollers bearing on the track at the transverse plane passing through the centre of gravity of the vehicle and is less on the other rollers according to their distance from this central plane. In the construction shown in Fig. 3, the load is transmitted from the frame a through springs f<1>, equalizing springs g<1>, g<2> and equalizing levers i to the rollers k bearing on the track e. The springs g', g<2> and levers i are formed with long arms directed towards the nearer end of the vehicle and with short arms directed towards the centre, thus producing the desired variable loading. Additional springs l may be used to increase the load on the central rollers. In a modification the central spring is the stiffest and the other decrease in strength in regular succession towards the end of the vehicle.
Patent GB-1514438-A (GB)
Title: Method of detecting tape transport condition
IPC: G11B15/093
Filed: 1977-02-22
Abstract: 1514438 Controlling tape recorders SHIN SHIRASUNA ELECTRIC CORP 22 Feb 1977 [24 Feb 1976] 07459/77 Heading G5R The operation of a reel-to-reel tape transport is monitored by deriving from a detector 2 a signal having a frequency proportional to the rate of revolution of one reel spindle 1a, applying this signal to a phase-locked loop 3 having a lock range set to cover the rotational speed range of the spindle la during transport of the tape at a predetermined steady speed, and detecting, by means of a syncrhonism-detecting circuit 4, whether or not the signal from the detector 2 agrees in frequency with a signal derived from a voltage-controlled oscillator contained in the phase-locked loop 3. If it does not, indicating that the rotational speed of the spindle la is outside the acceptable range, the circuit 4 operates an automatic shut-off.
Patent GB-979002-A (GB)
Title: Valves for pressurised containers
IPC: B65D83/14
Filed: 1962-02-26
Abstract: 979,002. Delivering measured quantities of liquid. BERTSPA ENGINEERING CO. Ltd. (YDEV S.A.). Feb. 22, 1963 [Feb. 26, 1962], No. 7506/62. Heading B8N. [Also in Division F1] A valve arrangement for dispensing measured quantities of a pressurized material, such as liquid or powder, from a container comprises a tubular body 2 having a radial bore 10 therein sealed by a flexible sleeve forming a non-return valve and a displaceable stem 4 having an axial bore which in one position communicates with the radial bore so as to permit the flow of material from the outlet into the container in one direction only. A measuring chamber 2g, 2d is formed in the body 2, which may be of nylon or other plastics material, and provided with a flange 2a secured in a metal cap 1 attached to the container. The flexible sleeve 11 is provided with a flange 1 la held against the flange 2a by indentations 1a formed in the cap. In operation, with the arrangement in the position shown, material is forced under pressure into the measuring chamber past a resilient closure member 8. Upon depression of the operating stem 4, its closed end compresses the closure member to prevent flow from the container into the measuring chamber, continued downward movement bringing a port 5 in the stem 4 into communication with the measuring chamber thereby allowing the material in the latter to be dispersed through the outlet 6. In order to fill the container, the outlet cap 6 is removed and a filling head attached to the stem 4, the stem then being depressed so that the material is forced via port 5, measuring chamber and port 10, normally closed by the sleeve 11, into the container. In a modification, the sleeve may be formed without the flange and secured by a resilient ring at its upper end. In a further modification, instead of the holes 10, a passage may be provided in the flange communicating the interior of the container with the measuring chamber, the passage being closed by a ring anchored at its periphery to the flange 2a.
Patent GB-356719-A (GB)
Title: Improvements in and relating to torque conversion or transmission
IPC: F16H33/02
Filed: 1930-03-07
Abstract: 356,719. Variable-speed gearing. LAST, J., 51, Woodstock Road, Carshalton, Surrey. March 7, 1930, No. 7566. [Class 80 (ii).] Variable-speed gearing automatically variable with the load comprises inertia members which can oscillate freely with respect to driving and driven members and act by absorbing and returning energy. In the arrangement shown in Figs. 4 and 5, there are primary freely oscillating masses B and secondary masses A. The masses B are connected by links 35 to sheaves 36 loose on eccentrics 38 secured to a driven shaft 37. Each mass B is connected also by a link 34 to a mass A which is connected by a link 33 to a lug 32 fast on a driving drum 30. In a modification, the masses B are free to roll round and oscillate within a four-lobed hollow cam fast on the driven shaft A more intricate arrangement is described with relativelyoscillating planetating masses coacting with a multiple centrally arranged cam. An arrangement with energy-storing springs is shown in Fig. 6. A mass 43 on an arm 44 loose on the driving-shaft 40 is connected by a spring 42 to a pin on a sheave 41a on an eccentric 41 turning with shaft 40. The mass 43 is also connected by a spring 45 of spiral form to a drum 46 which is variably driven. In a form shown in Fig. 7, a driving-disc 50 is connected by drag links 52 to masses 53 which roll in a cam path 54 in a member 56 which can oscillate relatively to disc 50 and to driven crank shaft 59. The member 56 carries cylinders 57 in which reciprocate pistons 58 connected to the cranks 59. Energy is stored in air compressed in the cylinders 57.
Patent GB-936165-A (GB)
Title: Improvements in or relating to electrical power sources
IPC: G21H1/06
Filed: 1961-03-02
Abstract: 936,165. Semi-conductor devices. TELEFUNKEN G.m.b.H. March 2, 1961 [March 9, 1960], No. 7589/61. Drawings to Specification. Class 37. A power source comprises a body containing PN junction and radio-active material. The radio-active substance should be in the region of the PN junction since charge carriers formed more than one diffusion length from the junction do not reach it and cannot contribute to the generation of a voltage across the junction. Suitable isotopes are nickel 63 and palladium 107 which are emitters. If a P-type drawn silicon crystal is used the junction may be formed by diffusing in phosphorous. If an N-type silicon crystal is drawn boron or gallium may be diffused to form the P zone.
Patent GB-512689-A (GB)
Title: Improvements in plate heat exchangers for fluids
IPC: F28D9/00
Filed: 1938-03-11
Abstract: 512,689. Plate heat-exchangers. HELMORE, W. March 11, 1938, No. 7614. [Class 64 (iii)] The two compartments of a heat exchanger are formed by a thin corrugated metal sheet a in which the height of the corrugations is greater than their pitch. In each compartment is a central port e and two end ports f in one wall operating respectively as an inlet port and outlet ports, and in the other wall respectively as an outlet port and inlet ports. The ends of the corrugations are secured in a fluid-tight manner to the end walls of the casing b. A number of units may be combined in which case the inlets and outlets h, i, of adjacent faces of the units are formed by spacing members g.
Patent GB-539047-A (GB)
Title: Improvements in piezo-electric thickness-mode crystals
IPC: H03H3/04
Filed: 1940-04-29
Abstract: 539,047. Piezo-electric crystals. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 29, 1940, No. 7660. Convention date, April 29, 1939. [Class 40 (v)] One of the major surfaces of a piezo-electric crystal vibrating in its thickness mode is ground to form two surfaces such as 2b, 2c sloping away from the central region of the crystal, to reduce spurious resonance, and a further surface 2f may be ground on to adjust the frequency. Many modifications are described in which the angle of bevel is varied, or the ridge is not central, and in which the surfaces are curved. Specification 441, 438 is referred to.