baber/WOPTO huggingface dataset:
Patent GB-1402373-A (GB)
Title: Fluid apparatus such as liquid measuring apparatus
IPC: F15B21/044
Filed: 1973-06-06
Abstract: 1402373 Delivering measured quantities of liquid ALFA-LAVAL AB 6 June 1973 [19 June 1972] 27070/73 Heading B8N A fluid apparatus, such as a liquid measuring apparatus for dispensing foodstuffs comprises a piston 2 provided with a seal 34, 35 at each end and one or more recesses 37 of axial length greater than the distance between annular zones 31, 36 provided in the cylinder 1, and a piston limiting stop 23, 23a which can be adjusted to permit the piston to move to a position where the seals are located within the annular zones and the recesses interconnect the annular zones so that liquid may flow past the piston during a cleaning operation. During normal use, the three recesses 37 provided in the piston 2 allow escape of air bubbles. A pump 19 continuously supplies the liquid to the apparatus from a container 18 and a control unit 17 operates the opening and closing of valves 9 to 12 upon receiving signals initiated by the piston at the ends of its stroke. The piston 2 may be reciprocated by the liquid supply acting alternately on opposite ends of the piston or by a piston-rod. The downward movement of the piston 2 may be limited by a rod 20 which can be set in the desired position. The upward movement of the piston may be limited by the stop 23, 23a which is locked in its lower position by liquid from a container 30. When a cleaning operation is to be performed a valve 30a is opened by the control unit 17 to allow the liquid above the stop to be pushed back into the container 30 when pressed by the piston 2 under the action of the pressure of cleaning liquid. When in the upper position as shown in Fig. 3, the cleaning liquid can flow past the piston. To assist the seals 34, 35 to be cleaned, one side of the seal grooves may be provided with openings 38. The grooves are preferably of dovetail cross-section. If the piston 2 is reciprocated by a piston-rod then this must be disconnected before a cleaning operation. Alternatively, the annular zones 31, 36 may be constituted by a ring of axiallyextending recesses and the three recesses 37 in the piston replaced by a single annular one.
Patent GB-1171594-A (GB)
Title: Wax Cup and Handle for Investment Casting
Inventor: ROSENFELD ARTHUR
IPC: B22C7/02
Filed: 1968-06-06
Abstract: 1,171,594. Wax cup for shell moulding. A. ROSENFELD. 6 June, 1968, No. 27081/68. Heading B5A. A wax cup 12, from the base whereof is supported a wax pattern for the formation of a shell mould around the pattern and cup, is generally frusto-conical in shape and reinforced by external ribs 20 and is provided in the interior wall 22 thereof with a coarse tapered thread 26 into which is screwed a similar tapered thread 30 of a supporting handle 28. The handle 28 comprises a hollow tube 32 with an opening 36 for a hook, whereby the cup and pattern may be suspended from a conveyer, and with a coil of wire 34 welded to one end to form the thread 30. In alternative forms of handle a rod may be employed instead of the tube 32, the rod may be formed as a hook at one end, and the axis of the wire coil may be at an angle to that of the rod. The handle thread may also be formed integrally therewith e.g. by machining or casting.
Patent GB-750248-A (GB)
Title: Moulding tools
Inventor: GLASSON ROY ACTON
IPC: B29C45/26
Filed: 1953-10-02
Abstract: 750,248. Moulds for injection moulding machines. AUTOGRAF BRUSH & PLASTICS CO., Inc. June 21, 1954 [Oct. 2, 1953], No. 27145/53. Class 87(2) A multi-part die for injection moulding comprises an upper part 2, movable towards and away from a fixed lower part 1, and carrying a plunger 8 with cavities 9 co-operating with cavities 13, 17, 18, 19. (Fig. 2) or fixed part 12 and movable parts 16 of a lower die, to form a moulding cavity 15, e.g. for a plastic brush, Fig. 4. The parts 16 may be retracted in the direction of cavity 17, sliding on the fixed part 12, by the engagement of knuckles 27 of toggle joints 26 and are held in place during moulding by sliding wedges 22. Thus as the upper part 2 descends, the projecting parts 10 of depending arms 6 engage arms 29 of the toggles 26 rotating them about their pivots 24 so that the parts 16 are moved into operative position. The toggles 26 similarly disengage the parts 16 when the upper part 2 moves out of engagement with the lower part 1.
Patent GB-806603-A (GB)
Title: Improvements in or relating to devices responsive to rotational speed
Inventor: TEIRE RONALD DANIEL
IPC: F01D21/02
Filed: 1955-09-23
Abstract: 806,603. Automatic speed control systems. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Sept. 17, 1956 [Sept. 23, 1955], No. 27219/55. Class 38 (4). [Also in Groups XXVI, XXXVII and XL (b)] A device responsive to a critical rotational speed comprises a rotary member 7 designed to have a whirling speed corresponding to the critical speed to which the device is to respond, and engine stop-gear or speed limiting or indicating means operable by the deflection of the member 7 due to whirling. The member 7 is preferably secured at one end co-axially to, or it may form an extension of, the shaft 6 of a gas turbine rotor and is provided with a fixed or axially adjustable weight 8. The dimensions of the member or extension 7 and the weight 8 and the precise location of the weight on the shaft are chosen to produce a whirling speed of the extension 7 corresponding to the upper permissible speed limit of the rotor shaft 6. When whirling of the extension 7 occurs the weight 8 is deflected thereby to move a switch 9 to break an electrical circuit comprising a solenoid 12, which while the circuit is closed, is energized to hold open a spring-loaded valve 5 in the working fluid or fuel supply line; the breaking of the circuit de-energizes the solenoid 12 and allows the valve 5 to be closed by a spring 14 to stop the turbine. A master-switch 10 is provided to allow the valve 5 to be closed at any speed; the device is re-set manually when running of the turbine is to be resumed. Surging may be avoided during shutting down by the use of a by-pass valve operated by the solenoid. In the modification shown in Fig. 2, the weight 8 carries a reflector 15 on its end face. A beam of light from a source 18 is deflected to fall upon and activate a photo-electric cell 16, the output therefrom passing through an amplifier 17 to the energizing circuit of the solenoid 12 to hold the valve 5 in the open position. When the weight 8 moves on reaching the whirling speed of the extension 7 the beam is deflected away from the photo-electric cell and the solenoid is deenergized, thus allowing the valve 5 to close. Alternatively, the moving beam of light may be used to indicate visually on a scale when the whirling speed of the extension 7 is reached. The circuit of Fig. 1 may be used to operate a warning device instead of, or additionally to, stopping the engine. The weight 8 may be fixed or adjustably mounted on the shaft as by screwthreading and securing by locknuts or, alternatively, the effective length of the shaft may be varied by providing a hollow shaft with a telescopic extension having suitable locking means to maintain a given adjustment.
Patent GB-322563-A (GB)
Title: Improvements in shift control mechanism for automobiles
IPC: F16H63/46
Filed: 1928-09-24
Abstract: 322,563. Patterson, J. V. Sept. 24, 1928. Controlling variable-speed gearing. -Variable-speed gearing is controlled by dogs A - - D which are selectively advanced into the path of cams 50, 51 operatable at will, one cam 50 being for shift to neutral of the transmission gear, the other cam 51 being for shift to power. A gear 25, Fig. 2, is moved to right and left for high and intermediate speeds. A gear 24 is moved similarly for low and reverse. These shift gears are operated by two levers 44, Fig. 9, each of which is connected by a pivotal boss 43 to a pair of legs 46, 47. The dogs A - - D are carried each in a hole in one of these legs and are adapted to be lowered one at a time into engagement with the shift cams by moving a preselector lever 79, Fig. 7, which is attached to the steering column 7 of a vehicle. The cams 50, 51, Fig. 9, are secured together and are oscillated through a pinion 52 and rack 56 in one direction by the engine clutch disengaging pedal 15, Fig. 2, and in the return by the clutch spring 20 either alone or positively aided by depressing a treadle 88 which acts through lever 86. The cams 50, 51 act equally on their forward and return strokes. When a dog A - - D is depressed into the plane of cam 50. that dog is struck and moved so as to move the power gear 24 or 25 to neutral. The cam 51 is at a lower level and has longer peaks, so that when a dog is depressed into its plane it moves that dog farther to bring the power gear to an operative position, the movement being completed if necessary from treadle 88. The selector lever 79, Fig. 7. acts through a rod 71 to oscillate a cross shaft 69, Fig. 3. This carries cams 68, 82, one for each pair of dogs and for each lever 44. In Fig. 9, the cam 68 is shown connected to operate a rock lever 64 which moves two control rods 60 up and down alternatively. Each rod 60 is guided and has a forked toe 61 by which the dogs A and B are selectively lowered, and raised. The dogs U (not shown) and D are similarly operated by the other selector cam 82, Fig. 3. The selector lever 79 is moved either before or after the declutching pedal 15 is depressed, and the actual change is effected either by that depression stroke, or by the return spring stroke, or by the depression of treadle 88.
Patent GB-665115-A (GB)
Title: Improvements relating to flameproof electric torches
IPC: F21Y101/00
Filed: 1948-10-21
Abstract: 665,115. Electric torches. ANGLOIRANIAN OIL CO., Ltd., and MACLEAN, T. T. Oct. 21, 1949 [Oct. 21, 1948], No. 27431/48. Class 39(ii) A flameproof torch comprises a casing 10 open only at the forward end 13 and providing a deep cylindrical cavity to receive a transparent or translucent block 21 which is a close sliding fit therein, the external wall 27 of the cavity being screwthreaded to receive a cylindrical cap 25 which has a central aperture 26 and bears upon the upper edge of the block 21 to hold it in position. A bulb-socket 17 is attached to the underside of a metal disc 15 located between the block 21 and an annular shoulder 14 at the bottom of the cavity. The dimensions of the flanged joints are stated to be in accordance with " Sheffield Test " requirements, which also exclude the use of jointing materials such as rubber and asbestos. A sealing-wire may be threaded through registering holes in adjacent flanges 28, 29 on the cap and body of the casing. The switch 12 completely enclosed within the casing is preferably of the form described in Specification 665,104. Fig. 2, shows a modification wherein a thick transparent disc 30, or a flanged block having the contour indicated by broken lines, is cemented to a flange 32 on an annular metal sleeve 33 which is a close sliding fit within a cylindrical cavity in the end of a torch casing. The cap may be held against removal by a locking-bolt 46, Fig. 4, (not shown) which is inserted upwardly through a hole in the wall of the cap and at its lower end has a lateral projection extending through a notch in the lower rim of the cap and arranged to abut against a shoulder on the adjacent part of the casing. The bolt is held in position by a nut within a countersunk recess at the top end of the bolt hole. A further modification of the invention, Fig. 3, (not shown) is adapted for a torch head connected to a battery casing by a long metal tube enclosing an insulating connecting wire, the bulb being enclosed within a' thick transparent dome with a base cemented to an annular flange or a metal bush which is held within a cavity in the head by a screwthreaded collar.
Patent GB-1425059-A (GB)
Title: 1,4-dihydropyridines their production and their medicinal use
IPC: C07D211/80
Filed: 1973-06-08
Abstract: 1425059 4 - Phenyl - 1,4 - dihydro - pyridines BAYER AG 8 June 1973 [10 June 1972 22 Dec 1972] 27463/73 Heading C2C Novel compounds I: in which R is hydrogen or an aliphatic radical; R<SP>1</SP> and R<SP>4</SP> are hydrogen or alkyl; R<SP>2</SP> and R<SP>3</SP> are hydrocarbyl or optionally cyclic and/or unsaturated alkoxy radicals which radicals may have one or two hydroxyl groups as substituents and be interrupted in the carbon chain by one or two oxygen atoms; A is O, S or NH; B is COOR<SP>11</SP> (in which R<SP>11</SP> is alkyl) or NR<SP>111</SP>R<SP>1111</SP> (in which R<SP>111</SP> and R<SP>1111</SP> are hydrogen or alkyl or form with the N atom a heterocyclic ring which may contain a further hetero atom); X is C 1-4  alkylene optionally substituted by C 1-6  alkyl or hydroxy; R<SP>5</SP> is hydrogen or one or two substituents selected from alkyl, alkoxy, nitro, acylamino, amino, dialkylamino, cyano or halogen, and their salts are prepared by (1) reacting a #-dicarbonyl compound with an amine R-NH 2  to produce an enamine R<SP>1</SP>-C(-NHR)=CH-COR<SP>2</SP> which is reacted with a compound V or the corresponding reaction in which R<SP>1</SP> and R<SP>2</SP> are interchanged with R<SP>3</SP> and R<SP>4</SP>, (2) reacting a (3-dicarbonyl compound R<SP>4</SP>-CO-CH 2 -COR<SP>3</SP> with an enamine R<SP>1</SP>-C(-NHR)=CH-COR<SP>2</SP> and an aldehyde IX: in which A is O or S to form a Compound I (A=O or S) or the corresponding reaction in which R<SP>1</SP> and R<SP>2</SP> are interchanged with R<SP>3</SP> and R<SP>4</SP>, (3) reacting two moles of R<SP>1</SP>-CO-CH 2 - COR<SP>2</SP> with one mole of an amine RNH 2  and aldehyde IX to form a Compound I (A = O or S; R<SP>1</SP>=R<SP>4</SP>; R<SP>2</SP>=R<SP>3</SP>), (4) reacting a dihydropyridine in which A is O or S or the sodium salt thereof when A is 0, with a halogen derivative Hal- X-B and if necessary in the presence of an acid acceptor to form a Compound I (A = O or S) or (5) reacting a dihydropyridine XII: in which Z is halogen with a Compound Me-A-X-B in which Me is Na or K and A is O or S to form a Compound I (A=O or S). Compounds I in which X is substituted by OH are also prepared by reacting an epoxide with an amine or by reducing an aminoketone. Compounds I prepared are those in which R<SP>1</SP> and R<SP>4</SP> are hydrogen or C 1-4  alkyl, R 2  and R 3  are C 1-4  alkyl, C 1-4  alkyoxy or propargyloxy, R is C 1-4  alkyl or allyl, R<SP>11</SP> is C 1-4  alkyl, R<SP>111</SP> and R<SP>1111</SP> are hydrogen or C 1-4  alkyl and R<SP>5</SP> is hydrogen or one or two substituents selected from C 1-4  alkyl, C 1-4  alkoxy, chlorine, bromine or nitro. Compounds I exhibit coronary-dilation antifibrillation and #-blocking properties, reduce the tone of smooth muscle, have muscularspasmolytic actions, influence cholesterol and lipid levels and lower the blood pressure of normal and hypertonic animals. They form with a carrier or diluent a pharmaceutical composition which may be administered orally, parenterally, rectally or topically.
Patent GB-890377-A (GB)
Title: Improvements in or relating to electrical connecting arrangements
Inventor: DUBILIER WILLIAM
IPC: H02G15/08
Filed: 1958-08-27
Abstract: 890,377. Two-part couplings; direct connections between conductors; cable terminations. DUBILIER CONDENSER CO. (1925) Ltd. June 10, 1959 [Aug. 27, 1958], No. 27486/58. Classes 36 and 38 (1). An electrical connecting arrangement comprises a central conductor surrounded by an insulating body with an end face deeply and narrowly grooved so as to provide a surface path of at least three groove flanks between the central conductor and an outer conductor or the covering of the insulating body. As shown, a terminal fitting attached to a capacitor B has a central conductor A provided with a socket A3 and surrounded by an insulating body C1, preferably resilient, the face of which has concentric or spiral recesses C2 separating tapered ribs C3. For connecting the terminal fitting to a coaxial H.T. cable G-H, the insulating sleeve F of the cable is also formed with mating grooves and ribs F1, F2 and the central conductor G has a mating plug G1. The grooves may be filled with a fluid insulating material or a fusing solvent. The outer conductors D, H may be provided at their ends with flanges D2, H, whereby they may be connected together by bolts or by one or two split sleeves. Other embodiments show the terminal arrangement in the connection of a cable to an insulating cap or to another cable of different diameter and in a further embodiment the mating ribs and grooves of two elements are in stepped formation.
Patent GB-1463010-A (GB)
Title: Digital speed control system for an electric motor
IPC: H02P7/292
Filed: 1974-06-21
Abstract: 1463010 Automatic control of speed A A COHEN 12 June 1975 [21 June 1974] 27526/74 Heading G3R [Also in Division H2] A digital control system for a D.C. motor M, energized in one or other direction of rotation by selection of an appropriate one of two three-phase thyristor bridges A, B rectifying an A.C. supply RYB, comprises a counter 8 producing pulses in a predetermined binary sequence dependant in part on the number of phases of the A.C. supply, the pulses being related to the frequency of the supply whereby control pulses are produced at the instants of zero crossing of the waveforms of the respective phases of the supply, registers 9, 10, 11 passing the control pulses to the gates of the thyristors of the operative bridge via staticizers 12, 13 (wherein the pulses are held for a predetermined time), whereby the thyristors are made conductive in pairs in a sequence corresponding to that of the counter 8, and means to vary the operating frequency f o  of the registers to vary the phase of the control pulses relative to the zero crossing instants, whereby the firing instants of the thyristors are varied to vary the power applied to the motor. The phase variation of the control pulses is produced by a delay introduced by register 10 and dependent on f o  and the number of bits in the register. The signal of frequency f o  is derived from a phase corrector 6 receiving, as one input, a signal of variable frequency f produced by a phase lock loop 2 supplied with a signal I 1  representing a desired motor speed and a signal I 2  from a tachometer coupled to the motor, the signal I 1  also being applied to a forward/reverse logic unit 1 whose output signals O 1  O 2  enable or disable the staticizers 12, 13. The other input of corrector 6 is a signal of frequency f 1  produced by a phase lock loop 4 fed with a signal from a filter 3 supplied with A.C. of the same phase and frequency as the supply RYB, the corrector 6 changing the phase of the frequency f signal to that of the frequency f 1  signal, whereby the corrector output signal has a frequency f o  equal to that of the frequency f signal and in phase with the A.C. supply frequency. The system is completed by a divider 5 and monostable 7, analyses being given of the relationships between N (the divisor of divider 5),  f 1 ,I 3 , f c  (frequency of counter 8), the frequency of supply RYB, f o , the number of bits in register 10 (which may be varied) and the firing sequence of the thyristors as set by the counter 8, Figs. 1 and 2 (not shown).
Patent GB-207329-A (GB)
Title: Improvements in structural members for aircraft
IPC: B64C3/18
Filed: 1922-10-11
Abstract: 207,329. North, J. D. Oct. 11, 1922. Metal pipes and tubes. - A tubular strut for use in aircraft framework is formed by bending a strip 1 of sheet metal to approximately circular section, providing it with inwardly turned beaded edges 2. 3 passing over it rings 4 of such a diameter as to press these edges tightly together, and fitting the ends into tubular sockets 5. The strip 1 may be formed with one or more longitudinal grooves 6 as shown in Fig. 6. Each socket 5 is formed with a shoulder bearing on the end of the tube as shown in Fig. 4.
Patent GB-745311-A (GB)
Title: Improvements in driving dough dividers, handers and provers
Inventor: HOLLOWAY WILLIAM THOMAS
IPC: A21C5/00
Filed: 1953-10-07
Abstract: 745,311. Bakery plant. BAKER PERKINS, Ltd. Dec. 30, 1954 [Oct. 7, 1953], No. 27570/53. Class 28(1). In a drive for dough preparation plant, the main shaft 6 drives one or more dividers 1 and a second shaft 7 drives the hander 2 and first prover 3, a first motor 8 driving the main shaft is selectively coupleable to drive the second shaft and a second motor 9 is provided to drive the second shaft only thereby enabling the first motor, and hence the divider or dividers, to be stopped while the hander and first prover continue to operate. Dough pieces are carried from divider 1 by conveyer 4 to hander 2 and then by conveyer 5 to first prover 3. Motors 8, 9 may be electric. Motor 8 drives, through belting 10, a pulley 11 secured to the shaft 6 to which ratchet coupling member 13 is coupled by key 12. A pulley 14 secured to shaft 7 carries a pawl 15 which engages ratchet member 13 so that, when shaft 6 is driven in the appropriate direction, it drives shaft 7. Pulley 14 can be driven through belting 16 by motor 9. When motor 8 is operating, motor 9 is not energised but is turned by belting 16. When the divider run is completed, motor 9 is started and motor 8 is stopped. A clutch may be provided between the divider and its drive so that it may be declutched before the drive is changed. In modifications, member 13 may be secured to pulley 14 and pawl 15 may be carried on pulley 11 or member 13 may be rotatable relative to both pulleys 11 and 14 each of which carries a pawl. Each pawl may be provided with friction pad contact members so that it is held out of contact with the ratchet when it is not driving. Two dividers may be provided for use with one hander and first prover, Fig. 4 (not shown).
Patent GB-173319-A (GB)
Title: Improvements in or relating to drop-down guns and rifles
IPC: F41A3/58
Filed: 1920-09-29
Abstract: 173,319. White, J., and Payne, H. H. Sept. 29, 1920. Breech actions, drop-down barrel.-The top lever a is moved to locking position by a coiled spring e encircling the spindle c. In the construction shown, a forward tang a<1> on the top lever forms a top bolt, and the sliding bottom bolt g is actuated by a crank c<1> at the bottom of the spindle c. The gun may be fitted with the safety device described in Specification 173,463.
Patent GB-408312-A (GB)
Title: Improvements in the manufacture and production of ethylated diamino-and polyamino-anthraquinones
IPC: C09B1/28
Filed: 1932-10-05
Abstract: Dyes suitable for dyeing acetate artificial silk are prepared by heating diamino- or polyaminoanthraquinones with ethyl sulphuric acid.  Reaction is usually carried out above 100 DEG  C. preferably between 130--150 DEG  C. and by suitable choice of conditions the degree of ethylation can be controlled; reaction proceeds smoothly and the use of a special diluent or solvent is unnecessary.  Examples illustrate the ethylation of 1.4-diamino-, 1.4.5-triamino-, and 1.4.5.8-tetramino-anthraquinones. Specification 391,859 is referred to.
Patent GB-201814-A (GB)
Title: Improvements in and relating to combs
IPC: A45D24/12
Filed: 1922-10-12
Abstract: 201,814. Oliver, S. Oct. 12, 1922. Combs, hair.-The back of a comb is extended and bent over to form a clip 12 for engagement with the pocket of a garment.
Patent GB-1041339-A (GB)
Title: An elastomeric blend
IPC: C08F236/10
Filed: 1965-06-30
Abstract: An elastomeric composition comprises (a) from 25 to 85 parts of a random rubbery copolymer of 13-butadiene and styrene prepared by the solution polymerization of a major butadiene/minor styrene mixture using an organo-lithium catalyst and a liquid solvent mixture containing from 0.005 to 50% of the solvent mixture of an ether, thioether or tertiary amine, the remainder of the solvent mixture being a diluent hydrocarbon which is liquid and inert under the reaction conditions and (b) from 75 to 15 parts of natural rubber. The usual vulcanizing and compounding ingredients may be present and the composition may be vulcanized and used to produce tyre treads.