baber/WOPTO huggingface dataset:
Patent GB-707193-A (GB)
Title: Monohalogenated 1.3-dioxanes and process for their manufacture
IPC: C07D319/08
Filed: 1952-05-01
Abstract: The invention comprises 1 : 3-dioxanes halogenated in the 5-position of the formula <FORM:0707193/IV (b)/1> in which X is halogen, preferably Br, R1 is an aryl radical which may be substituted, and R2 and R3 are H, alkyl, aryl, aralkyl, alicyclic, heterocyclic, or together form a ring. The products are obtainable by condensing a halohydrin, R1-CH(OH)-CH(X)-CH2OH, with an aldehyde or ketone R2-CO-R3.  In examples, 1-phenyl-2-bromo-propandiol-1 : 3, obtainable by decomposition of cinnamyl alcohol with bromine water, reacts with acetone, benzaldehyde, and formaldehyde, and the corresponding p-nitrophenyl compound, obtainable by the action of bromine water on p-nitrocinnamyl alcohol, reacts with acetone.
Patent GB-331010-A (GB)
Title: Improvements in or relating to steam boilers calorifiers and the like
IPC: F22B13/00
Filed: 1929-04-10
Abstract: 331,010. Brooke, R. G., and Holden & Brooke, Ltd. April 10, 1929. Partitions in water space. - Vertical or slightly-helical ribs 3 projecting from the, furnace or flue 1 of a vertical boiler into the water space are enclosed by a casing 4 to form a number of passages through which the water flows upwardly in separate streams. The ribs may be formed with flanges which contact with one another to form the outer walls of the passages in place of the casing.
Patent GB-181893-A (GB)
Title: Improvements in wind screens for side cars and the like
IPC: B62K27/16
Filed: 1921-04-18
Abstract: 181,893. Simpson, T. A. April 18, 1921. Covers for exposed seats and occupants.-A combined hood, cover-apron, and wind-screen for side-cars and the like is formed of waterproof material provided with longitudinal flexible metal side members 1, Fig. 1, the folds enclosing which are extended to form flaps 15 for securing side valences 20 by press fasteners 16. The hood has tubular end members 2, 3, Fig. 4, and transverse stiffeners, the member 3 being mounted in securing clips 10, while the member 2 is secured by strips 13 to spring clips 12 placed at two positions in the front of the side-car. In one position, the members 1 are arched to form a hood, and in the other thev lie flat to form an apron. A celluloid or like window 17 is provided. The back portion of the covering material mav be detachable to allow the screen to be laid flat when a passenger is seated.
Patent GB-299481-A (GB)
Title: Improvements in or relating to the treatment of gases or vapours for the recovery or extraction of hydrocarbons therefrom
IPC: C10G5/00
Filed: 1927-04-26
Abstract: 299,481. Salerni, P. M. April 26, 1927. Washers.-For the extraction of hydrocarbons from gases or vapours, the latter are driven, in company with oil or other absorbent or liquefying medium, along spiral passages. The gases are introduced axially to the centre of a vaned drum mounted on the shaft 1 and are whirled round by vanes 7, 8 and thereby forced into the spiral passages 9. The spiral passages are formed in a number of spirally wound plates beaded at their edges. The whole is carried on bearings 12, 14 and is rotated in a direction opposite to that of the vaned drum. Oil is admitted to the hollow 20 of the shaft 1 and passes through radial pipes 21, which have flattened orifices, into troughs 22 on the outer edges of the vanes 8 thence it is delivered in a fine sheet by centrifugal force. The gases pass out of the spirals at the periphery and pass radially inwards at the left hand end to an outlet. In this passage inwards to the outlet, the gases are subjected to the whirling action of vanes 27 and thereby the oil is separated out and is drained off by the pipes 26.
Patent GB-1491755-A (GB)
Title: Reinforcement means for a concrete wall
IPC: E04C5/02
Filed: 1975-03-18
Abstract: 1491755 Wall reinforcement OLA BERGQVIST AB 18 March 1975 [21 March 1974] 11223/75 Heading E1W Starting reinforcement 6 for a cast-in-situ wall 4 of a concrete building comprises steel ropes, wires, or budles of threads, providing sufficient flexiblity to allow the reinforcement to be bent to a level within the design depth of the cast concrete floor 1, where it may be held e.g. by insertion into tubes 9 embedded in the lower wall 2.
Patent GB-1427567-A (GB)
Title: Camera attachments for close up flash photography
IPC: G03B15/04
Filed: 1973-03-08
Abstract: 1427567 Camera close-up attachment; viewfinders; diaphragms L A DINE and E S LEMMEY 8 March 1973 [22 Dec 1972] 11297/73 Headings G2J and G2X A camera attachment for use in making flash exposures of a subject at one of a plurality of different distances from the plane of the camera lens comprises: (a) a mounting member 16 adapted to be fixed to the camera; (b) means attached or attachable to the mounting member and of length(s) to reach the subject to position the subject at any selected one of said different distances from the plane of the camera lens; (c) at least one close-up lens 34 attachable over the camera lens or to the mounting member in a position aligned with the camera lens when the mounting member is fixed to the camera, to modify the focal point of the camera lens substantially to one of the different distances; (d) a window 44 mounted in front of the flash source when the mounting member is fixed to the camera; and (e) means for varying the amount of light transmitted through the window on operation of the flash source to give required flash exposure of the subject at the selected one of the different distances. Component (b) may comprise a series of brackets 24 of different lengths or a bead-type chain Fig. 5, (not shown) with distance indicators thereon. Mounting plate (a) may also carry a parallex-error correcting prism 38 for alignment with the camera view-finder. The means (e) may comprise an apertured slide member 48 or a diffuser to control the amount of light emitted.
Patent GB-1269202-A (GB)
Title: Improvements in the production of cores for use in the production of metal castings
Inventor: WALKER JAMES
IPC: B22C9/12
Filed: 1968-02-14
Abstract: 1,269,202. Foundry moulding processes and apparatus. FORDATH Ltd. 8 May, 1969 [14 Feb., 1968; 29 Aug., 1968; 4 March, 1969] Nos. 7211/68, 41255/68 and 11404/69. Heading B3F. [Also in Division C3] A method for the production of foundry mouldings comprises introducing a mixture comprising an aggregate, a curable binder (dissolved in cyclohexane) and a polyisocyanate into a moulding box to form a " green " moulding and passing a tertiary amine into the box to effect curing. The amine is preferably triethylamine which is passed into the box as a vapour entrained in a gas stream. An apparatus for effecting curing of the moulding comprises an air line 10 containing a pressure regulator 14 connected to a vessel 17 which contains the amine, from which issues an outlet line 18 for the passage of a gas stream carrying the entrained amine vapour via a distributer arrangement 20 to the box 23. The distributer 20 includes four air-operated stop valves 26-29 which are arranged to be operated in pairs such that when two of these 26, 29 are open the stream of gas carrying the entrained amine vapour is passed through the box 23 in one direction and when the other two 27, 28 are open the stream is caused to pass through in the opposite direction. A by-pass line 31 extends between the pressure regulator 14 and distributer 20 to ensure that a minimum of free amine vapour is left within the box 23 after curing. The flow control valves of the apparatus are timer controlled.
Patent GB-406147-A (GB)
Title: Improvements in or relating to the art of welding
IPC: B23K31/02
Filed: 1933-04-19
Abstract: A backing strip in a composite welding rod may be formed from a steel alloy containing 10 to 45 per cent of chromium, 3 to 25 per cent of manganese, and up to 3 per cent each of silicon and carbon.
Patent GB-114793-A (GB)
IPC: G01F3/22
Abstract: 114,793. Shakeshaft, C. E. M., and Clarkson, T. J. R. June 12. 1917. Gas meters.-In a dry gas meter, the bellows 7, 8 are made rectangular in shape and move side bv side in a rectangular casing A, expanding and contracting in lines approximately parallel with the partition 1 situated between them.
Patent GB-323697-A (GB)
Title: Improvements in means for tensioning driving chains and the like
IPC: F16H7/08
Filed: 1929-04-15
Abstract: 323,697. Pugh, Ltd., C. H., and Starkey, E. W. April 15, 1929. Tension arrangements.- In tensioning-means for chains and the like, a lever, arm, or other contact member, for example a rigid curved pivoted arm 1 such as is described in Specification 323,959, is pressed against the chain by a lever 6 turned on a pin 7 by a. spring 11 and carrying a roller 10 engaging the arm. As the chain stretches, the point of contact between the lever and arm moves away from the pivot 3 of the arm 1 and at the same time increases its angle with the arm, so that the pressure on the arm progressively increases. A hooked stop 13 prevents the lever from passing a position from which it can be returned by the pressure of the chain. The lever 6 may be replaced by a spring arm mounted on the pin 7. The roller 10 may be replaced by a tooth adapted to wipe over a series of ratchet teeth on the arm 1 which is thus retained in its adjusted position.
Patent GB-684340-A (GB)
Title: Improvements in or relating to an automatic sheet feeding device for a rotary printing machine
IPC: B41F21/00
Filed: 1950-05-09
Abstract: 684,340. Feeding sheets to rotary printing- machines. ROTAPRINT AKT.-GES. May 9, 1950 [May 12, 1949], No. 11508/50. Classes 100 (i) and 100 (ii). In an automatic sheet-feeding apparatus for a rotary printing-machine in which for each revolution of the printing-roller the sheetfeeding apparatus completes a working cycle, controlling devices are provided by means of which the speed of operation of the feeding apparatus during the working stroke is kept at a predetermined value, for example at the maximum permissible speed thereof, whilst on the idle return stroke the speed is adjusted in accordance with the angular speed of the printing-roller. In the offset machine shown, a suction sheet-feeder V separates sheets from a pile C and conveys them to feed rolls E which feed them to an impression roller G where they are printed by an offset roller O co-operating with a forme roller F. The rollers F, O, G are geared together, and the feeder V is driven by gearing from the roller G, whereby the feeder completes a working cycle for each complete rotation of the roller F. The feeder V and rolls E are controlled from a shaft A on which is secured a gear-wheel Z<SP>4</SP> meshing with a wheel Z' provided with a radial slot S in one face which is engaged by a pin B on a wheel Z' meshing with a wheel Z' secured on the shaft of the roller G. The wheel Z' is rotatable on a stub shaft carried by a plate P pivoted on the shaft A, this plate being connected by a link to a lever D which controls the speed of the printing-roller F. When the lever D is moved to increase the printing-roller speed, the plate P is swung about the shaft A so that the axis of the wheel Z' is moved relatively to that of the wheel Z<SP>2</SP>, and the driving pin B moves along the slot S. By this means, the wheel Z', and hence the feeder V, is driven at a non-uniform speed. By suitable gearing and adjustment, the working stroke of the feeder V is kept at a substantially constant speed, but is accelerated on the return stroke. Small sheets can thus be printed at a greater speed than large sheets. In a modification, a gear-wheel on the shaft of the roller G drives, through an idler, a gearwheel rotatably mounted on the shaft A. A bell-crank linkage pivoted to one face of the. wheel on the shaft A is connected at one end to the shaft, and at the other end has a roller which rides over a fixed cam, which is one of a set of cams axially slidable to co-operate with the roller. The shaft A is thus driven through the bell-crank linkage at a speed which is varied by the surface of the co-operating cam.
Patent GB-495945-A (GB)
Title: Improvements in and relating to means for guiding work back into another pass withina roll housing
IPC: B21B41/04
Filed: 1938-04-19
Abstract: 495,945. Rolling. SCHLOEMANN AKT.- GES. April 19, 1938, No. 11692. Convention date, April 29, 1937. [Class 83 (iv)] Work-returning guides 3, 4 of helical channel shape are independently adjustable by mounting each on separate cross beams or on the enlarged cylindrical half 5, and 6 of a cross beam, the other halves being of reduced diameter with splines, and one being tubular so that the reduced halves telescope into each other during guide adjustment and reach to the other side to provide good support by both side frames 1, 2. Fixing plates 10 with two fixing screws 9 and with the other end supported at the other side provide a three point support.
Patent GB-311533-A (GB)
Title: Improvements in or relating to breakdown cranes and the like
IPC: B66C23/50
Filed: 1928-04-21
Abstract: 311,533. Ransomes & Rapier, Ltd., (Hodgson, B.). April 21, 1928. Drawings to Specification. Supports for vehicles. - A long railway truck mounted upon several bogies so as to distribute the weight of a breakdown crane mounted upon rails upon the truck platform, is provided with a number of jacks for supporting the truck clear of the track when the crane is in use.
Patent GB-1385130-A (GB)
Title: Artificial crisps
IPC: A23L19/10
Filed: 1973-03-12
Abstract: 1385130 Crispy fried potato snack foods PRESERVENBEDRIJF BV 12 March 1973 [13 March 1972] 11799/73 Heading A2B Dried potato flour and ground corn are mixed with water to form a dough having a moisture content of at least 35wt%, the dough is rolled into a thin film, preferably about 1/50", cut into pieces and air-dried to form a dry skin, the moisture content of the pieces then being about 30wt%, the pieces then being placed for up to 5 minutes in a confined space that prevents further drying, wherein the moisture content between the inside and outside of the pieces may equalise, and thereafter frying the pieces, for example deep fat fried at about 340‹F, to give a crisp snack product. Optional ingredients include pregelatinised starch, dextros, monosodium glutamate, flavouring and colouring.
Patent GB-542671-A (GB)
Title: Improvements in turning-lathes
IPC: B23B17/00
Filed: 1940-07-20
Abstract: 542,671. Turning. WARING, F. E. July 20, 1940, No. 11953. [Class 83 (iii)] A lathe has a bar bed 12 supported in "A" frames 10 and carrying a tool carrier 15 which is rocked on the bed to feed the tools transversely of the work. The headstock spindle 14 is carried on brackets 13 located one on either side of the left hand frame. The tool carrier is located between clamped-on brackets 17, 18, the latter of which has an extension 19 serving as a bearing for a screwed spindle 20 operated by a hand wheel 21 and serving to apply the feed movement to the carrier which may be limited by stops carried by the arm 19. The tool bar 16 which may be fitted with a socket carrying one or more cutting tools is movable axially from a wheel 23 through a member 25 which is mounted so that it permits rocking movement of the tool bar.
Patent GB-551191-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/553
Filed: 1941-09-18
Abstract: 551,191. Bread &c. slicing machines. BERKEL & PARNALL'S SLICING MACHINE CO., Ltd. Sept. 18, 1941, No. 11970. Convention date, Sept. 19, 1940. [Class 5 (i)] In bread and like slicing machines comprising a multi-knife cutting means 29, 30 working in a pivotally-mounted knife frame B and a substance support 44, 45 and wherein the substance is cut during a slicing stroke forming part of a complete motion between the frame and the support while the knives are driven in their frame to perform a cutting motion distinct from that which includes the slicing stroke, a motor 42 drives the knives and is connectable to the knife frame to raise it from the end position of the slicing stroke to the starting position (Fig. 6). Current is supplied to the motor on closure of the main switch 166. To raise the knife-frame B, switch 131 is closed by drawing the hand-knob 136 and slider 135 with its upstanding extension 137 engaging the switch lever. Motion from the motor is transmitted through one or a pair of belts 61 which drive a pulley 60 enclosing oppositely directed free-wheel clutches. One of these is connected through gearing to a shaft 87 having a lostmotion connection with the crank pin 91 engaging a lever 93 pivoted at its lower end to the knife-frame. In the uppermost position the finger 200 opens the switch 131 and the frame is held by rollers 46 surmounting the upper edge of pivoted cams 48, which are pulled beneath the rollers 46 by a spring 501. The same movement lowers the substance-receiving comb 44 and lowers the hand-lever 56. A loaf &c. having been placed on the comb 44, the handle 56 is raised. This removes the cams 48 from beneath the rollers 46 allowing the knife-frame to fall by gravity. At the same time it lowers the top-comb 100 over the loaf, and closes the switch 150 which sets the motor into motion in the opposite direction to that bringing about the raising of the frame B. Through the second belt or belts 61, pulley 60, and the second free-wheel, referred to above, the knives 29, 30 are reciprocated by eccentrics and connecting rods. If a large loaf is to be sliced, the knives may be operated before the frame begins to fall by raising the knob 171, which through a rod 169 rocks the member 158 causing closure of the switch 150. After the slicing has started the handle 56 may be raised to cause the knife frame to descend as before. Dash-pots steady the fall. Specification 536,278 is referred to.
Patent GB-474420-A (GB)
Title: Improvements in or relating to clutch operation
IPC: B60K23/02
Filed: 1936-04-27
Abstract: 474,420. Facilitating change of speed ; operating clutches. PULSOMETER ENGINEERING CO., Ltd., and WARREN, R. April 27, 1936, No. 11997. [Class 80 (ii)] The tail clutch of a motor vehicle is disconnected by a servomotor when the accelerator pedal is moved backwardly beyond the normal released position, and the clutch is engaged or biassed towards engagement on allowing the accelerator to return to normal released position, the servo valve being mechanically linked with the accelerator pedal. The servo may operate the main clutch in addition to the tail clutch, which latter may comprise locking means for a freewheel clutch. The servo may be operated by pressure oil from the engine lubricating system or by engine suction. As shown, the accelerator pedal 30 is pivoted at an intermediate point 31. Depression of the toe of the pedal actuates the throttle through bell-crank levers 13 and 15, while depression of the heel of the pedal, against the resistance of a spring or rubber block 33, lifts a spindle 37 by means of a lever 36. A lost-motion connection 34, 35 in the throttle linkage permits this latter movement without affecting the throttle. The spindle 37 is disposed within a spring-loaded valve plunger 40 and is provided with a shoulder 43 cooperating with a nut 42 on the plunger. Thus, as the spindle 37 lifts, the plunger 40 is lifted to put a servo 24 into communication with the engine intake manifold 19, and the servo operates, through linkage 27, 28, 29 to disengage the main and tail clutches. On allowing the pedal to return to normal position, or moving it forwardly therebeyond, the valve 40 closes communication between the manifold 19 and the servo and puts the latter into communication with a bleed hole 44, which may be adjustable, so that slow clutch engagement results. A relatively large depression of the pedal forwardly beyond the normal position admits additional air to the servo through ports 47, 49 so as to speed up the clutch engagement. The ports 47 may be adjusted by a spring collar 48. Specifications 394,144, 410,378, 418,328, 435,278, 441,613, 442,208, and 452,603 are referred to.
Patent GB-913302-A (GB)
Title: Improvements in or relating to scanning switch systems
Inventor: KING FRANK KENNEDY
IPC: H01H51/08
Filed: 1958-04-15
Abstract: 913,302. Electromagnetic switches. BAILEY METERS & CONTROLS Ltd. April 13, 1959 [April 15, 1958], No. 12018/58. Class 38 (5). [Also in Group XXXV] An electromagnetically-driven rotary switch is driven by a reverse drive electromagnetically operated spring-loaded ratchet and pawl mechanism 41-47 and carries self-drive contacts 49 operated by a pin 50. The magnet alternatively may be operated from a pulsed supply. The ratchet-wheel 41 is connected through gearing 21, 34 to the rotating wiper 31, 32, which sweeps round an insulating stator plate 26 carrying eleven contacts, of which R is connected to the wiper 31 and, 0-9 may be connected to separate circuits. A number of plate assemblies may be mounted together for operation by a common driving mechanism.
Patent GB-1213263-A (GB)
Title: Improvements in or relating to humidity meters
Inventor: HAWLEY EDWIN LAWRENCE
IPC: G01N21/81
Filed: 1969-03-06
Abstract: 1,213,263. Photo-electric humidity measurement. E.P.S. (RESEARCH & DEVELOPMENT) Ltd. March 6, 1969, No.12045/69. Heading G1A. In a humidity meter a humidity sensing element 9 Fig. 2 such as a sheet impregnated with cobalt chloride determines the amount of light falling on a light sensitive element 6 from a light source 3. The element 6 is mounted on a slider 7 for adjustment of its position on a base 1 and two light screens 4, 8 are arranged to clamp the sheet 9 during a measurement. The bulb 3 and element 6 are fed via a switch 12 from a common supply 10, and the bulb may be selected to emit a predetermined wavelength or range of wavelengths to an element including in its path a suitable filter. The light beam may be chopped to distinguish it from incident ambient light and to facilitate the use of an A.C. amplifier. Light reflected from the sheet may alternatively be used.
Patent GB-1083322-A (GB)
Title: Improvements in or relating to tunnelling apparatus and methods of tunnelling
Inventor: BARTLETT JOHN VERNON
IPC: E21D9/087
Filed: 1964-03-21
Abstract: 1,083,322. Tunnelling machines. MOTT, HAY & ANDERSON. March 17, 1965 [March 21, 1964], No. 12063/64. Heading E1F. To overcome cave-in problems when tunnelling through sand or like earth formations a liquid thixotropic suspension is delivered under pressure at the front of the shield of a tunnelling machine into contact with and to stabilise the face of the tunnel being formed by the machine and is then removed with spoil excavated by the digging mechanism associated with the shield.
Patent GB-633881-A (GB)
Title: Improvements in or relating to vacuum tube amplifiers
IPC: H03F3/36
Filed: 1947-05-06
Abstract: 633,881. Valve amplifying circuits. PHILCO CORPORATION. May 6, 1947, No. 12211. Convention date, June 20, 1946. [Class 40 (vi)] A wide-band amplifier having a characteristic which rises with frequency over the highfrequency portion of its pass-band comprises a pair of valves coupled at higher frequencies by means of an inductance L<1> and grid-leak and condenser R<3>, C<2>, and at low frequencies by means of a common cathode resistance R<5>. A shunting condenser C<3> reduces the coupling by the cathode path at high-frequencies and prevents regeneration, while coupling at low frequencies due to the residual resistance R<2> of the inductance L<1> is prevented by choosing R<3>, C<2> to fulfil the condition L<1>=C<2>R<2>R<3>. The arrangement is more particularly intended for use as a head amplifier for a television camera.