baber/WOPTO huggingface dataset:
Patent GB-1064033-A (GB)
Title: Combined burner-inlet valve
IPC: F23Q2/173
Filed: 1964-03-31
Abstract: 1,064,033. Control valves for gas lighters. RONSON CORPORATION. March 31, 1964 [March 29, 1963], No. 13269/64. Heading F4F. A combined burner-inlet valve for gas lighters has a housing 1, Fig. 1, in a reservoir wall, and a valve member 7 movable in the housing and including an inlet and outlet passage 8. Member 7 slides in a portion 2 screwed into housing 1 and carries a filter 14 around opening 10, a sealing member 18 being mounted in recess 21 to close ports 17, Fig. 2. In the burner open position, Fig. 1, a spring 21b moves member 7 upwards to grip sealing member 18 between shoulders 16b, 19 to close ports 17; gas therefore flows out of the reservoir through opening 10. In the inlet open position, Fig. 2, the neck 23 of a refill vessel pushes member 7 down to move ports 17 clear of sealing member 18 to allow liquified gas to flow to the reservoir. In Fig. 3, not shown, the reservoir is vented to atmosphere during refilling through the space between members 7, 2. The gas flow through opening 10, Fig. 4, is throttled by compressing a wick 40 between the end of member 7 and a ball 39 carried by a member 37 screwed on to member 7 and prevented from rotation by engagement of an extension in a slot in housing 1a the member 7 is hexagonal in cross-section and is rotated by a wheel 27 to adjust the compression of wick 40. A disc 32 in snuffer cap 30 normally closes passage 8. To refill the reservoir 26, a vessel depresses member 7 to move ports 17 clear of seal 18 which is also moved away from shoulder 19a to open an exhaust passage through ports 25, 25a and the gap between member 7 and bore 5. The valve of Fig. 6, not shown, carries a sealing member with a long stem in passage 8 of member 7 and this member is moved down by the snuffer to positively close opening 10. In Fig. 7A this sealing member and stem 8a are spring-biased to close opening 10 and a lever 48 engages stem 8a to raise the sealing member when fingerpiece 49 is depressed; a member 50 carrying a projection 51 to engage lever 48 can be slid clear of lever 48 so that the snuffer 30 can be opened for refilling without rotating lever 48. To fill the reservoir from a piercable vessel an adapter, Fig. 9, is used having a flange 61 with a seal 62 to engage a flange 12, Fig. 1, on member 7, a hollow needle 55 being biased by a spring 53 to register ports 57 with a seal 52. On insertion of a neck of a vessel in housing 1c, pressure on the vessel causes needle 55 to pierce the vessel closure, and the vessel neck engages flange 58 whereby the ports 57 are moved clear of seal 52 and also member 7 is depressed to open the inlet valve to the reservoir.
Patent GB-793544-A (GB)
Title: Improvements in or relating to electric signal transmission systems
IPC: H04J1/14
Filed: 1955-05-09
Abstract: 793,544. Voice-frequency receivers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 9, 1955 [May 12, 1954], No. 13341/55. Class 40 (4). [Also in Group XL (c)] In a transmission system using V.F. signalling wherein a pilot current of the same frequency as the V.F. signals is continuously transmitted and an alarm is given if its level falls below a predetermined minimum, an amplifier for both signalling and pilot currents has its output coupled to its input through a path which includes both a circuit tuned to a frequency preferably above the signalling frequency and means whereby the feedback may be made positive, to produce oscillations, or negative, according to whether the level of the V.F. and pilot current is below or above the predetermined minimum. Coupling circuit 11 between the output 9 and the grid circuit 8 of valve 6 includes rectifiers 14, 15 and the nature of the feedback is determined by the relative potential between points 21 and 22, the potential at point 21 being determined by the signalling and pilot frequency level across input circuit 3 and at point 22 by potential divider R1, R2 and battery B1. The oscilla- . tions which are produced around the amplifier 6 by positive feedback and have a frequency determined by a tuned circuit 10, which is considerably higher than the signalling frequency, are rectified in circuit 19 to energize alarm relay 20. The oscillations may be normally present with the alarm arranged to operate when they are terminated by a change from positive to negative feedback, or conversely a fall in pilot level may cause the generation of oscillations and thus actuate the alarm. The amplitude of the oscillations is limited by a rectifier 30 biased from battery B3. Signalling relay 28 is energized as a result of bias developed across a rectifier 26 by signalling current in tuned circuit 23, battery B2 preventing false operation by the alarm current and rectifier 31 serving to limit the bias voltage developed. An alternative circuit arrangement including input limiting is described with reference to Fig. 2 (not shown), and an arrangement of saturable reactors suitable for replacing rectifiers 14, 15 in the feedback path is described with reference to Fig. 3 (not shown).
Patent GB-566617-A (GB)
Title: Improvements in and relating to air-break electric switches
IPC: H01H33/12
Filed: 1943-08-18
Abstract: 566,617. Air-break switches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 18, 1943, No. 13423. Convention date, Aug. 22, 1942. [Class 38 (v)] An H.T. loadbreak switch comprises a main blade 3 pivoted at 4, and an arcing blade 8 which is pivoted at 9 to the main blade and connected to the latter by a spring 19 arranged, when the main blade is opened, as by a pole, to urge the blade 8 anticlockwise with respect to its pivot 9, so that it remains closed until its tail 16 strikes a fixed projection 17. Continued movement of the blade 3 then separates 8 from its fixed contact 10 and the disposition of the parts is such that it overtakes and coincides with blade 3, and provides a sufficient disconnecting gap in the full-open position. During closure, blade 8, gains on blade 4 and makes contact first. Contact 10 is continued into an arc-runner lying between the sides of an upwardly-narrowing slot between asbestos-lined, insulating plates forming an arcshoot 7, a blow-out coil 11 being connected between the fixed contact and one terminal and having magnetic plates 12. The main blade comprises a pair of spaced conductors embracing the companion contact 1<11> which is located behind the shoot.
Patent GB-880790-A (GB)
Title: Cyclohexene-carboxylic acid amides
Filed: 1958-04-28
Abstract: The invention comprises cyclohexene-carboxylic acid amides of the general formula <FORM:0880790/IV (b)/1> in which R represents an alkyl or alkenyl radical containing 2 to 5 carbon atoms.  The products are employed in anti-convulsive preparations (see Group VI). The above compounds may be prepared by condensing the 1-alkali metal compound of cyclohexene-(3)-nitrile with an alkylating or alkenylating agent comprising a saturated alkyl halide, a mono-olefinic alkenyl halide or a dialkyl sulphate, the alkyl or alkenyl groups of which contain from 2 to 5 carbon atoms and hydrolysing the cyclohexene-(3)-nitrile alkylated or alkenylated in the 1- position so formed at temperatures between 50 DEG C. and 150 DEG C. by means of caustic alkali in the presence of an aliphatic alcohol.  The alkali metal compounds of cyclohexene -(3)-nitrile may be reacted with the reactive esters in liquid ammonia or a mixture of the ester and cyclohexene-(3)-nitrile may be added to a suspension of sodamide in boiling benzene.  Other hydrocarbon solvents may be employed.  Examples are furnished relating to the preparation of 1-n-propyl-, -sec-butyl-, -alkyl-, -crotyl-, isobutyl, -ethyl and isoamyl-cyclohexene-(3)-nitrile-(1) and the hydrolysis thereof to the corresponding amides.  Cyclohexene-(3)-nitrile is obtained by reacting butadiene with acrylonitrile.  The sodium compound thereof is obtained by reacting the nitrile with sodium phenyl in the presence of aromatic hydrocarbons or with sodamide in liquid ammonia.ALSO:An anti-convulsive preparation suitable for oral administration comprises an amide of the general formula <FORM:0880790/VI/1> in which R represents an alkyl or alkenyl radical containing 2 to 5 carbon atoms (see Group IV (b)) in admixture with a pharmaceutical carrier material.  Specific amides described are 1 - n - propyl -, 1 - sec - butyl, 1 - allyl -, 1 - crotyl -, 1 - isobutyl -, 1 - n - butyl -, and 1 - ethyl - cyclohexene - (3) - carboxylic acid amides-(1).
Patent GB-377330-A (GB)
Title: Improvements in packing of invert sugar and like substances for transport
IPC: C13B45/02
Filed: 1931-05-08
Abstract: 377,330. Moulding sugar. MANBRE & GARTON, Ltd., Winslow Road, Hammersmith, and BERRY, E. A., 91, Hamilton Terrace, St. John's Wood, both in London. May 8, 1931, No. 13604. [Class 87 (ii).] Sugars which are liquid during manufacture and subsequently crystallize into a solid mass, such as invert sugar, are poured in liquid form into a paper bag or like container supported in a mould such as is shown in Fig. 2. The mould comprises fixed vertical sides 2, 3' and removable sides 4, 5, having cross-pieces 9 on which engage slots 8 to hold them in position. In use, a bag, which may be a multiply paper sack, is placed in the mould, and the sugar, " seeded " to promote crystal. lization, is poured in, causing the bag to act as a closely fitting detachable lining of the mould. The sugar crystallizes into a solid mass which is removed from the mould, with the bag adherent thereto. The upper edges of the bag are folded down to form a package.
Patent GB-405975-A (GB)
Title: Improvements in four-stroke-cycle engines with combined admission and exhaust valve gear
IPC: F01L1/28
Filed: 1932-05-11
Abstract: 405,975. Cylinders; valves. CASES, A. LEVI-, 9, Via del Santo, Padova, Italy. May 11, 1932, No. 13617. Convention date, May 12, 1931. [Classes 7 (ii) and 7 (vi).] In a four-stroke -cycle engine cylinder having one or more valves each serving for both inlet and exhaust and a device for whirling the incoming charge, this device is rendered inoperative during the exhaust period. The device may comprise curved vanes m carried by a sleeve valve 5, which is reciprocated by an arm 10 to control inlet and exhaust passages A, S above the main valve 4 ; sloping surfaces 7, 8 diffuse the whirling charge as it enters the cylinder. As modified in Fig. 3, the whirling device comprises curved passages m<1>, and a slot a in a depending flange allows a scavenging charge to enter before the exhaust passage is closed, a further semi-circular flange, adjacent the exhaust passage, preventing direct flow of air thereto. Fig. 7 is a plan view showing two double valves with whirling devices 9 and a semi-circular baffle which, combined, produce the required swirl in the cylinder ; the valves may overlap the cylinder wall and more than two valves may be provided. The sleeve valves may be timed so that the inlet and exhaust periods overlap, scavenging of the valve chambers being thus effected. The whirling devices may be adjustable-e.g. by varying their incidence or lift. The Specification as open to inspection under Section 91, comprises also fixed and adjustable whirling devices formed as nozzles surrounding the sleeve valve, which may however be omitted ; in this case butterfly valves may be provided in the pipes leading to or from the passages A, S. The sleeve valve may be replaced by a rotary hit and miss valve having alternate, or superposed, ports leading to the passages A, S, the whirling devices being either inside or outside the valve. Fig. 10 (Cancelled) shows adjustable whirling devices comprising pivoted vanes m, or vanes with a fixed side f and a pivoted side m<1>, or with two pivoted sides m<2>, m<3> ; adjustment is effected by a single annular rack c or by two racks c<1>, c', operated, in either case by a pinion R, and may be initially set or take place periodically during the cycle of operations of the engine. Fig. 14 (Cancelled) shows a sleeve valve having a semi-circular port and passage L<2>, the whirling devices being located at L<1>. Figs. 22A (Cancelled), 22B (Cancelled) show a double valve placed at the side of the cylinder from which the charge issues in one direction only owing to deflectors D in the sleeve valve ; this effect may, alternatively, be produced by arranging the inlet passages A on one side only and in the form of nozzles. This subjectmatter does not appear in the Specification as accepted.
Patent GB-109973-A (GB)
Title: Improvements in Vacuum Brakes for Railway Vehicles.
IPC: B60T13/46
Filed: 1917-09-24
Abstract: 109,973. Hardy, Geb. Sept. 25, 1916, [Convention date]. Fluid-pressure; force-transmitting mechanism. -Relates to vacuum brake mechanism for railway trains in which the pressure applied by an additional brake cylinder, brought into action for braking at high speeds, is automatically diminished to prevent skidding of the wheels which would otherwise result from the increase of the coefficient of friction of the brake blocks with slackening speed. The additional brake cylinder is brought into action by a valve actuated by the transmitting mechanism when the force applied to that mechanism by the main brake cylinder recedes a predetermined valve, and the drag of the brake blocks is utilized to actuate a valve by which equalization of pressure on both sides of the additional brake piston is subsequently effected. The main cylinder, not shown, is connected to the pull rod 1 of the brake mechanism, and a link 25 of this mechanism is connected to a spring 24 and to a lever 5 actuating a normally closed valve 6 which controls admission of air to the additional cylinder 10 by pipes 8, 9. The brake blocks 4 are suspended from a balance lever 18 adapted to actuate a valve 23 controlling communication between the upper and lower chambers of the brake cylinder 10 and a flap valve 7 adapted to close the pipe 8 to atmosphere. The lever 18 is normally maintained in the position shown by a spring 26 in which the valve 23 is closed and the valve 7 open. The brake cylinder 10 is evacuated by way of the train-pipe 2 past a non-return valve 27. For coupling the piston 11 to the pull-rod 1, a toothed or friction jaw 14 is forced into engagement with a member 15 on the rod by a link 13 extending between the one arm 12 of the bell-crank 12, 16 and a link 17 connected to the other arm 16 of the bell-crank. The arm 16 and link 17 transmit the pull to the rod 1. In service applications of the brakes, the pressure applied by the main cylinder is insufficient to overcome the spring 24. If this pressure is exceeded, the valve 6 is opened and air is admitted by the pipes 8, 9 to the lower chamber of the additional brake cylinder 10 and the braking pressure is increased thereby. When the drag of the blocks 4 is sufficient to overcome the spring 26 the balance lever 18 is turned and further admission of air to the cylinder 10 is stopped by the closing of the valve 7. At the same time, the valve 23 is opened to permit slow equalization of the pressure above and below the piston 11 and thus throw the additional cylinder out of action.
Patent GB-352608-A (GB)
Title: Process for producing a colloidal solution of the edestin-calcium in a whey free from milk albumin and milk ferment
IPC: A23C23/00
Filed: 1930-05-05
Abstract: A colloidal solution of edestin calcium in whey free from lactalbumen and milk ferments for use in the manufacture of meat extracts and other food products is obtained by first removing part of the casein by adding magnesium sulphate and phosphoric acid, and then the remainder by neutralization of the phosphoric acid with magnesium carbonate.  Sufficient caustic soda solution is then added to the casein-free liquid followed by boiling to convert the lactalbumen and lactoglobulin into albumenates which are precipitated by addition of phosphoric acid and repeated boiling and removed by filtration.  The liquid is then neutralized with magnesium carbonate and, after addition of lime water with stirring, boiled again.  Hemp seed is extracted at above 57 DEG  C. with the whey so obtained and the extract is neutralized with phosphoric acid, brought to the boil, filtered at above 57 DEG  C., and is then boiled with gradual addition of sugar to a syrup.  A specific example including proportions used is given.
Patent GB-705414-A (GB)
Title: Improvements in or relating to hurricane lamps
IPC: F21V37/02
Filed: 1951-06-12
Abstract: 705,414. Hurricane lamps. SPARKES, R. G., and SPARKES, E. May 29, 1952 [June 12, 1951], No. 13858/51. Classes 75 (3) and 75 (4) The invention consists in a hurricane lamp with a body made of concrete and a method of casting the lamp body, the lamp comprising a hollow concrete body 1 having apertures 4 covered by translucent windows and holes 17 for combustion air and provided with means for supporting a burner within the body, and the method comprising casting concrete around a glass sleeve 5 and forming apertures 4 in the concrete during casting so as to expose the sleeve to form windows. The body is of circular, rectangular or square section and has an integral dome-shaped top. The glass sleeve 5 may be facetted and ruby coloured or non- coloured. In the latter case a ruby glass or plastic bullseye 7 is secured in a seating 6 in each window aperture to form a window separate from the glass sleeve. The sleeve terminates short of the bottom of the concrete body and is provided with a screw thread with which engages the fuel container 8 of a wick burner. Alternatively the burner may have spring clips for securing it in position. The wick is adjusted by a shaft 12 which extends through a sleeve 13 in the fuel container. The wick holder may be replaced by a bung for supporting a candle. Combustion products escape through vents 19 in the body. A separate base for the lamp comprises a concrete casting having an upper flat surface with a recess into which the lower part of the lamp fits and having a lower surface of part spherical form. The Provisional Specification states that a metal cap may be secured to the lower end of the glass sleeve, the cap having a wick burner or having spikes to which candles may be secured; or the spikes are provided on a support projecting through the metal cap and adjustable in height. The Provisional Specification also states that the part spherical base may be integral with the lamp body.
Patent GB-116991-A (GB)
Title: Improvements in Centrifugal Pumps.
Inventor: SCHAUFFELBERGER EMIL
IPC: F04D1/06
Filed: 1917-09-26
Abstract: 116,991. Schauffelberger, E. Sept. 26, 1917. M u l t i - stage centrifugal pumps; impellers in parallel; casings; regulating.-In order to provide for working efficiently against different heads of water, the several impellers of a pump are adapted to be readily removable with the intermediate guide members and replaceable in different manner in order that two or more impellers may work in series or in parallel. Fig. 1 shows three impellers a, b, c with guide members q working as a multistage pump, the suction being from the central pipe f and the discharge through the pipe i. The second inlet g and outlet hare stopped by the guide rings n, o and the intermediate guides q, q<1>. Fig. 2 shows the impellers re-arranged with different intermediate guides m, m<1>, so as to act in parallel, with two suction inlets f, g and two discharge outlets h, i. If preferred, a different set of impellers may be employed for different duties.
Patent GB-143852-A (GB)
Title: Improvements in or relating to automobile ploughs
IPC: A01B3/56
Filed: 1920-05-20
Abstract: 143,852. Renault, L. May 23, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Ploughs.-A balance plough is carried upon two central wheels 3 adapted to be driven from a motor 1 through a. differential gear 2, means being provided to drive the wheels at different rates in order to steer. Wheels 6, which may be used for steering independently of, or in combination with, the wheels 3, are mounted on forks vertically adjustable in the frame, and may be lowered to the position shown in dotted lines for the transport of the vehicle. Other wheels 9, which are vertically adjustable to control the depth of ploughing, are fitted at the ends of the frame. The frame may be articulated to provide further means for adjusting the depth of working. A hood 7 surmounted by a flue 8 covers the mechanism. The operator's seat, which is counterweighted to maintain it in an horizontal position, is adapted to be turned through 180 degrees when the direction of ploughing is reversed. The reaction of the drive on the frame throws the correct set of ploughs into operation when the machine is started or reversed.
Patent GB-514691-A (GB)
Title: An improved means of protecting roofs against bombs
IPC: E04H9/06
Filed: 1938-05-11
Abstract: 514,691. Roofs of buildings. McCLEAN, D. May 11, 1938, Nos. 14022 and 25343. [Classes 20 (i) and 20 (iv)] A flat or sloping tiled roof c is rendered bomb resistant by applying to it alternate layers of reinforcedconcrete slabs e bedded upon cushioning layers d of felt, straw, or the like. The slabs may be surfaced with reinforced plate glass, and either hooked together or secured by bolts i, as described in Specification 153,758, [Class 20 (iv)]. Wire ropes g weighted at their ends h are passed over the ridge and are clipped to the slabs or secured to the bolts i. The materials may be fireproofed. The first Provisional Specification states also that wire netting may be spread under the felt &c. layers.
Patent GB-612142-A (GB)
Title: Improvements in or relating to process and apparatus for measuring the magnetic susceptibility of fluids
IPC: G01R33/16
Filed: 1946-05-09
Abstract: 612,142. Glass. GAS LIGHT & COKE CO., and MORCOM, A. R. May 9, 1946, No. 14093. Drawings to Specification. [Class 56] [Also in Group XXXVI] An iron-free glass containing samarium up to 15 per cent and preferably 6-7 per cent added as oxide or carbonate, is melted with such a proportion of ordinary diamagnetic soda glass as to give a glass which is magnetically neutral. The glass may comprise 21 parts by weight of samarium oxide, 200 parts of pure silica, 16 parts of borax, 3 parts of alumina, 4¢ parts of magnesia, 30 parts of chalk, 69 parts of sodium carbonate and 9 parts of potassium carbonate melted together at 1300‹ C., then crushed and melted with diamagnetic glass and formed into rods.
Patent GB-1432122-A (GB)
Title: Device for sensing the direction of movement of a perforated code carrier
IPC: G06K7/10
Filed: 1974-03-29
Abstract: 1432122 Photo-electric sensing of direction of movement of punched tape FACIT AB 29 March 1974 [2 April 1973] 14109/74 Heading G4M The direction of movement of a perforated code carrier is sensed by a pair of photosensors detecting the passage of the carrier guide holes. A reading head includes a light emitting diode 14 illuminating punched paper tape 18 as it moves over translucent glass or plastics plate 19. An array of phototransistors 25 are provided at the end of tunnels in a two-part block 11, for monitoring the code tracks. Two of the tunnels are divided by partitions 38 and each fitted with two phototransistors 28, 29 and 26, 27, so that the direction of movement can be sensed with the tape inserted in both orientations-necessary when the guide holes are unsymmetrically located across the tape width. The apertures at the ends of the tunnels nearer the page are of substantially the same size as the tape guide holes. The detectors 28, 29 and 26, 27 are connected to a logic circuit for direction evaluation. The detectors are twice the distance of the light source from the tape, to provide contrast between presence and absence of holes.