baber/WOPTO huggingface dataset:
Patent GB-1135150-A (GB)
Title: Photographic camera
IPC: G03B17/42
Filed: 1967-08-18
Abstract: 1,135,150. Double-exposure preventing mechanism. AGFA-GEVAERT A.G. Aug.18, 1967 [Aug.27, 1966], No.38224/67. Heading G2A. A spring-loaded locking slider 4 which prevents double exposure and double winding also provides the motive power which actuates the shutter. When the camera release 2 is pressed in the direction of arrow 8, a lug 2b thereon passes through a recess 4d in the slider, and at the same time a further lug 2c with an oblique surface pushes the slider in the direction of arrow 9 about its pivot point 10. This brings lug 4b of slider 4 out of engagement with a cam 1a on the film advancing means 1, and allows the slider to be pulled to the left by spring 11. (The release 2 cannot be pressed again in this position, since recess 4d is no longer below lug 2b.) During this movement, a lug 4c on slider 4 engages a lug 29a on the shutter blade 29, and swings it about pivot 28 to uncover the aperture 15, and then slips away from it to allow the shutter blade to swing back under the action of a spring 30, so closing the aperture again. As the blade swings open, an arm 29b thereon engages a contact 33, so closing a flash circuit. Knob 1 is now turned to operate the film transport, until cam 1a once more engages against lug 4b and pushes the slider to the right against spring 11, until the position of Fig.2 is reached again, lug 29a having an oblique surface which allows lug 4c to slide over it. (A further film transport movement of knob 1 is now prevented until after the next actuation of release 2.) Figs. 3 and 4 (not shown) are of a modification in which the flash contact is completed by a lug (4k)on the slider itself. Also, a retarding mechanism (36) providing various shutter speed settings is mounted so as to act on the slider. The part of the housing defining the shutter aperture is of plastics material, and the shutter blade is separated from this by a wire (35) in order to prevent charging with static electricity. In a further modification, Figs. 5, 6, (not shown) a mechanism is provided for retarding the running-down movement of the slider in order to obtain "bulb" exposures.
Patent GB-336162-A (GB)
Title: Improvements in or relating to episcopic projection apparatus
IPC: G03B21/06
Filed: 1929-12-13
Abstract: 336,162. Leitz, E. [Firm of]. Dec. 21, 1928, [Convention date]. Optical-projection apparatus.-A fan B within the casing A of an episcopic projector extracts the heated air and draws in fresh air: the inlet lor the fresh air is in proximity to the object being projected. The bottom of the casing may be formed of two plates C, D which are separated to provide the air inlet.
Patent GB-1501673-A (GB)
Title: Process for the manufacture of alkyl-tin trihalides
IPC: B01J31/00
Filed: 1975-09-18
Abstract: 1501673 Preparing alkyl tin trihalides SCHERING AG 18 Sept 1975 [19 Sept 1974] 38391/75 Heading C2J An alkyl tin trihalide is prepared by reacting an aluminium trialkyl or an alkyl aluminium halide with a tin tetrahalide, the aluminium compound being in the form of a donor complex with an ether or a tertiary amine and at no stage of the reaction being present in more than the stoichiometric amount required for monoalkylation of the tin tetrahalide. The complexing agent may particularly be diethyl ether, di-n-butyl ether, THF, dioxan, anisole, triethylamine, pyridine or dimethylaniline. In Examples, the aluminium reactants used are (C 4 H 9 ) 3 Al, (C 8 H 17 ) 3 Al, (C 18 H 37 ) 3 Al and C 8 H 17 - AlCl 2 .
Patent GB-941877-A (GB)
Title: Underframe for sewing machine table
IPC: A47B13/06
Filed: 1962-10-11
Abstract: 941,877. Work benches. H. G. C. FAIRWEATHER. (Singer Manufacturing Co.). Oct. 11, 1962, No. 38538/62. Heading B4X. [Also in Divisions A4 and D1] In a stand for a treadle operated sewing- machine, relatively slidable members are locked together by bolts engaging screw-threaded pushouts formed integrally with the slidable members. A treadle rod 55 is locked against the flanges of channel section members 53, 53<SP>1</SP> by means of bolts 57, 57<SP>1</SP> screwed into push-outs in U-shaped brackets 63, 63<SP>1</SP>. Bolts 28, 29, 28<SP>1</SP> and 29<SP>1</SP> pass through slots in channel section members 36, 37, 36<SP>1</SP> and 37<SP>1</SP> and enter screwthreaded push-outs in the nesting channel sections 26, 27, 261 and 27<SP>1</SP>, respectively.
Patent GB-327187-A (GB)
Title: Improvements in photographic printing devices
IPC: G03B27/32
Filed: 1928-12-31
Abstract: 327,187. Rennick, L. S. Dec. 31, 1928. Projection printing-apparatus. - In a copying camera for use with opaque originals, the light box and lens carriage are independently adjustable by pinions engaging the same racks. The apparatus comprises a light box 3 supported by counterweights 27 on a framework 1, and bearing on its upper surface a series of nesting frames 9 to receive the negative, which is illuminated from the front by a mercury vapour lamp 12; a lens carriage 14 connected to the light box by bellows 17; and a paper support 19. The lens carriage and light box bear pinions 31, 23 engaging racks 22 on the framework 1. A shutter 18 allowing the passage of non-actinic light for focusing is fitted to the lens holder.
Patent GB-1352426-A (GB)
Title: Electrically driven timer device
IPC: G04C11/08
Filed: 1971-08-17
Abstract: 1352426 Magnetic couplings; motor driving arrangements SIEMENS AG 17 Aug 1971 [17 Aug 1970] 38609/71 Heading H2A [Also in Divisions G3 and H1] An electrically driven timer, e.g. a time switch comprises a mechanical oscillator 1 which is powered by D.C. and able to drive a gear train 6-8 via a magnetic coupling 4, 5; and a synchronous motor 13 which is releasably coupled to the gear train to drive the latter when the motor is energized. As shown, one tine of tuning fork 1 carries a permanent magnet 3 co-operating with a driving coil 2 which is powered by D.C. The other tine carries a U-shaped magnet 4 which embraces a wavy-track magnetic wheel 5 so that the latter is normally stepped around by the oscillating magnet 4. The wheel 5 carries a pinion 6 meshing with a gear 7 on a shaft 14, Fig. 2. A serrated iron wheel 9 is mounted on the shaft 14 by means of a clip 15 so as to revolve with the gear 7 but be capable of a small axial movement. An end 10 of shaft 12 of the motor 13 has magnetic poles around its periphery. -The motor is a sliding armature motor so that when it is energized to synchronize the timer with the mains, the shaft end 10 slides into engagement with the wheel 9 and is magnetically coupled thereto. Engagement is assisted by the conical shaft end and the wheel 9 is coated with plastics to present a smooth, unbroken surface. This coupling is stronger than that between the parts 4, 5 so that the gear train is driven by the motor 13, independently of the fork 1. A magnetic clutch 11 may alternatively be used. The gear train may be normally driven by the motor 13 in which case the oscillator 1 is powered by a battery which is charged from the mains and constitutes a standby supply in the event of mains failure.
Patent GB-1457676-A (GB)
Title: Stepper motor for a quartz crystal timepiece
IPC: G04C13/11
Filed: 1974-09-04
Abstract: 1457676 Electric motors SUWA SEIKOSHA KK 4 Sept 1974 [5 Sept 1973] 38643/74 Heading H2A  A stepping motor comprises a permanent magnet rotor interacting with a stator including two pole pieces 201, 202 fixed to and in engagement with a member 223 of smaller magnetic permeability than the stator pole pieces. The member 223 may be of non-magnetic material. Both pole pieces may be permanently fixed to member 223. Alternatively one pole piece, 202 as shown, may be adjustably secured to member 223. The pole pieces are connected to a core carrying an energizing coil. The rotor may rotate in one direction or oscillate. The motor is intended for use in a quartz crystal timepiece.
Patent GB-1058055-A (GB)
Title: Improvements in or relating to ring spinning and twisting machines
IPC: D01H1/38
Filed: 1964-09-23
Abstract: For building a bunch above the main winding when the latter is completed in ring-spinning apparatus, an auxiliary cam is provided having a radius which enables the ring-rails to be lifted beyond the stroke-range of the main builder cam into an upper winding position. The main cam (7, Fig. 7, not shown) is fast on a shaft (3), and the auxiliary cam (25) can be clutched to the shaft but is normally held out of engagement with the follower (8) of the reciprocating arm (9) by a spring (31) or a counterweight.  The auxiliary cam has a larger radius than the main cam, and may have a notch (32) to engage the follower whereby it will continue to depress the arm (9) even if the clutch is de-energized.  The effective face of the auxiliary cam may be a part at right angles to the body of the cam which extends beneath the main cam when the auxiliary cam is operative.  In the circuit diagram (Fig. 8, not shown) switches (38, 36) are closed when the main wind is completed by a cam (37) on the main cam (7) and a length-measuring device (35).  Relay (33) is thus connected to close switches (42 and 34) the latter closing the circuit of the clutch (23/24), to set the auxiliary cam in motion.  When the bunch is completed, a second cam (43) on the main cam closes a switch (44) to connect relay (41) and open switch (40) for the clutch and close switch (52) for a motor (51) which winds the ring-rail down to starting position as determined by limit-switch (46).  In an alternative arrangement, the second-cam (43) is replaced by a yarn-length switch to control the size of the bunch.
Patent GB-1185397-A (GB)
Title: Improvements in or relating to Machines for the Cold-Heading of Screws, Rivets and the Like Articles.
Inventor: FERRE AMADEO
IPC: B21K1/46
Filed: 1967-08-23
Abstract: 1,185,397. Heading; shearing. A. FERRE. 23 Aug., 1967 [8 Sept., 1966], No. 38791/67. Headings B3H and B3W. In a cold heading machine for making screws, rivets and the like, rod stock 6 is fed through the reciprocating head 2 into a die 5 and is sheared off by an apertured blade 9. The stock is fed by rollers 7, 8 into one of a plurality of dies 5 carried on an intermittently rotatable tunnel 4 which brings the workpieces successively into alignment with heading punches such as 3. The turret is rotated by gearing 15. Each die has a knock-out rod 16. The blade 9 is removably mounted on the end of a lever 10 movable about a pivot 12 by an actuating rod (11), Fig. 2 (not shown), and co-operates with a fixed blade (13), Fig. 2 (not shown), for shearing off the workpiece. The blades are movable longitudinally of the rod for varying the length of the workpiece.
Patent GB-902834-A (GB)
Title: Machine suitable for packaging and like functions
IPC: B65B41/18
Filed: 1960-11-14
Abstract: 902,834. Seaming non-metallic sheet material. JOHNSON & JOHNSON. Nov. 14, 1930 [Nov. 12, 1959], No. 39081/60. Class 42 (1). [Also in Group XVII] A vertically movable die for heat-sealing the edges of paper strips 11, 12 to form a package about a gauze pad 10 is secured to a carriage 45 reciprocated by mechanism 53. A member 43 of the die carrying electric heating elements 94 is secured to a spider 87 lowered from the position shown in Fig. 12 by a piston 86 as the carriage 45 begins to advance. The piston 86 is cam-operated through parallel motion linkage. Pressure on the lowered die is exerted pneumatically, a chamber 116 above a diaphragm 117 being connected to a source of air pressure under control of a valve 122 operated by cam mechanism. As the diaphragm 117 flexes downwards it transmits pressure to the spider 87, thereby drawing down the member 43. The die is in sealing position, Fig. 14 (not shown), throughout almost all the forward stroke of the machine, the carriage 45 travelling at the same speed as the strips 11, 12. The member 43 is raised before return of the carriage 45. Safety mechanism is provided to exhaust the chamber 116 and raise the member 43 should the machine stop. The strip 11 carries adhesive material on its underside.
Patent GB-1160447-A (GB)
Title: Improved Folding Stand Means for Unstable Articles.
Inventor: DONALDSON WILLIAM WILSON LODGE
IPC: A63B55/04
Filed: 1966-09-01
Abstract: 1,160,447. Golf bag support. STANDEASY CO. Ltd. 1 Sept., 1966, No. 39117/66. Heading A6D. A folding stand attachable to an unstable article, e.g. a golf-bag, comprises a member 1, made of round rod having a U-form foot 2 to be disposed beneath the bottom of the golf bag and two upright limbs 3. This member is attached in suitable manner to the wall of the bag. At a suitable distance above the foot 2 a bent element 4 is welded between the limbs 3, and a pair of legs 5 are pivotally mounted on the inclined parts of the element 4. The lower end of each of the legs 5 has a ball foot 6 and the upper ends are embraced within the curve of a U-form plate 7 which has in its wings a pair of aligned holes by which the plate is pivotally mounted on the element 4. Each of the plates 7 has drilled in its wings another pair of aligned holes holding a pin 8 upon which is articulated the upper end of one of two actuating struts 9 forming part of a unitary displacing member 10 having a U-form base 11 substantially at right angles to the struts 9. The lower parts of these struts are guided loosely in a stirrup 12, 13 of strip metal welded across the lower parts of the limbs 3. The arrangement of the stand is such that in the folded position the foot 11 of the displacing member 10 projects beyond the foot 2 of the attachment member 1 and the ball feet 6 of the pivoted legs 5. When the bag is set down the foot 11 of the displacing member first contacts the ground and under the weight of the bag this member is moved upwards relatively to the attachment member 1 so as to turn the plate mountings 7 of the legs 5 until the foot 11 lies within the foot 2 of the attachment member 1 and both of these feet are resting on the ground; the legs 5 are displaced outwards to the position 5A thus giving a three-point support to the bag.
Patent GB-1024571-A (GB)
Title: Apparatus for separating a solvent in substantially pure form from solutions
IPC: C02F1/22
Filed: 1962-01-01
Abstract: 1,024,571. Distillation apparatus. DESALINATION PLANTS (DEVELOPERS OF ZARCHIN PROCESS) Ltd. Jan. 1, 1962 [April 14, 1961], No. 39154/61. Heading BIB. [Also in Division F4] Apparatus suitable for separating potable water from sea water comprises an evaporation chamber 20 surrounded by an annular condensation chamber 50. The sea water, which is introduced through pipe 18, partially evaporates as it flows in film-form down vertical plates 156 and the inner wall 94 of chamber 20, which is maintained under reduced pressure. Owing to the partial evaporation, the sea water is cooled, and ice is formed. The mixture of ice and brine is withdrawn from chamber 20 through pipe 100, and the ice is separated from the brine. The ice is then mixed with desalinated water to form a slurry which is distributed through pipes 126 into trays 48 in chamber 50. The vapour formed in chamber 20 is conveyed by compressor 54 into chamber 50, where the vapour condenses and the ice on the trays melts. Desalinated water flows through perforations in the trays. Residual vapour is condensed on conventional cooling coils 64. The desalinated water is withdrawn from the base of chamber 50 through pipe 108. The sea water, supplied through pipe 18, is distributed from manifold 148 to the top of plates 126 and of the inner wall 94 of chamber 20 by means of conduits 152 which are open at the top and at the ends.
Patent GB-1473543-A (GB)
Title: Gas turbine powerplants
IPC: F02K1/56
Filed: 1974-09-07
Abstract: 1473543 Deflecting propulsion jets ROLLSROYCE (1971) Ltd 2 Sept 1975 [7 Sept 1974] 39171/74 Heading B7G In an aircraft having a powerplant comprising a fan for delivering compressed air to laterally disposed rotatable nozzles movable between jet lift and forward thrust positions the exhaust efflux from the engine is delivered through a jet pipe 17 to a nozzle assembly 18 at the rear of the fuselage which is constructed to provide both forward thrust and pitch and yaw control thrusts. The nozzle 18 has two pairs of opposed openings in its walls, the opening 24 of one pair being provided with doors 26, 27 hinged at 28, 39 and having edge closure panels 34, and the opening 25 of the other pair having similar doors 35, 36. The doors may be selectively adjusted to discharge exhaust efflux rearwardly, forwardly, laterally or vertically.
Patent GB-903202-A (GB)
Title: Improvements in or relating to connecting rod and crank-pin bearing arrangements forv-type piston engines
IPC: F16H21/34
Filed: 1960-11-15
Abstract: 903,202. Driving gear. MOTOREN-WERKE MANNHEIM A.G. Nov. 15, 1960 [Dec. 3, 1959], No. 39206/60. Class 7(2) [Also in Group XXVI] In a connecting rod and crankpin bearing arrangement for a V-type engine and comprising an auxiliary connecting rod 14 pivoted to the crankpin bearing of a main connecting rod 1, the crankpin bearing comprises an upper part 2 and a bearing cover 5 detachably secured together to the main connecting rod foot 10, as by bolts 6, 7, and the auxiliary rod 14 is pivotally connected to the upper part 2. The rod 14 is pivotally secured to a lug 15 on the part 2 by a pin 13. Shoulders 17 and 18 and 19 and 20 on the part 2 co-operate respectively with the opposite sides of the foot 10 and the cover 5. A stud 21 serves to hold the part 2 and the foot 10 together to facilitate assembly of the bearing. The dimensions of the foot 10 and part 2 are such that the rods, with the part 2 attached to the auxiliary rod 14, can be withdrawn through their respective cylinders. In modifications, Figs. 2 and 3 (not shown), the dividing planes 9 and 12 between the foot 10 and the part 2 and between the part 2 and the cover 5 respectively are at right angles to the longitudinal axis 11 of the rod 1.
Patent GB-1093290-A (GB)
Title: Electrical game apparatus
IPC: A63F3/00
Filed: 1965-09-14
Abstract: An electrical game apparatus, useful for playing games, e.g noughts and crosses by players who may be separated visually and/or audibly, comprises a board for each player having its surface divided into areas which are provided with a number of electric light bulbs each of which is identified with one of the players, the bulbs being connected to contact making and breaking means mounted on the board and adapted to connect the bulbs individually to a source of electrical potential so that each player can light those bulbs which are identified with him on his own and the other player or players' board or boards.  The board is preferably made of a plastics material and the bulbs are of different colours to identify the different players.
Patent GB-800288-A (GB)
Title: Method of isolating substantially pure dextran from fermentation products and the degradation thereof
Inventor: STOYCOS GEORGE
IPC: C08B37/02
Filed: 1956-12-27
Abstract: Native dextran in a highly viscous crude fermentation product is purified by adding 15 to 30 per cent by weight of water-miscible aliphatic alcohols or ketones, preferably isopropanol, and removing precipitated impurities by filtration or centrifuging.  Preferably the fermentate containing the additive is held at room temperature for 30 minutes to an hour before separation of the impurities.  The separation is preferably effected at a pH of 2-5.  The dextran in the filtrate is precipitated by a further addition of alcohol or ketone, preferably the same as originally added, e.g. isopropanol in an amount of 35-50 per cent by weight, and may be further washed with isopropanol and dried.  The dextran may be partially hydrolysed, e.g. by acid, by dissolving it in water to the extent of about 30 per cent of the original fermentate volume, adding caustic soda solution to raise the pH to 6.8-7.0, heating to 75-85 DEG  C., adding strong mineral acid and hydrolysing at this temperature.  For producing dextran for clinical use (M.W. 20,000 to 200,000, average 60,000 to 80,000) hydrolysis is effected at pH 1.04 to 1.26 for about one hour. The hydrolysis is stopped by adding sodium hydroxide solution to a pH of 6.8-7.0 and the solution cooled to 35-40 DEG  C.  The solution may be decolorized, de-ionized and clarified before recovering the degradation products, e.g. by spray-drying or by adding alcohol or ketone to precipitate the dextran products.  The last operation may be carried out in stages so as to fractionate the degradation products.
Patent GB-967974-A (GB)
Title: Improvements in or relating to open hearth furnace doors
Inventor: DEMAISON RAYMOND JULES
IPC: F27D1/18
Filed: 1962-10-17
Abstract: 967,974. Open hearth furnace doors. QUIGLEY CO. Inc. Oct. 17, 1962, No. 39342/62. Heading F4B. A water-cooled, open hearth furnace door has a frame 10 comprising peripheral hollow flanges 12 interconnected by vertical water passages 15 and enclosing refractory blocks or panels 17 detachably secured to the back frame wall 11. The latter has slots 16 receiving threaded studs 18 screwed into nuts flush with the outer face of the blocks and engaging clamping nuts 20 with washers 19. The blocks are made of chrome magnesite and have crossed U-shaped metal reinforcements welded to the flush nuts and formed with splayed ends, Figs. 5 and 6 (not shown). In a modification, Figs. 3 and 4 (not shown), the vertical water passages engage a header spaced from the top of the door by the width of one block, the blocks filling said space being attached to brackets on the header.
Patent GB-331474-A (GB)
Title: Improvements in fire extinguishing apparatus
IPC: A62C13/00
Filed: 1929-12-24
Abstract: 331,474. Pyrene Manufacturing Co. Jan. 18, 1929, [Convention date]. Portable pressure reservoirs; chemicals.-In an extinguisher of the gas cartridge type, particularly one charged with a volatile extinguishing medium, such as methyl bromide, the container 10 is provided with a sealing disc 27, which cuts off its contents from the discharge tube 45. A gas cartridge 12 and a piecer 37 for the cartridge are mounted respectively on the outer and inner sides of the sealing disc. A cutting member 38 carried around the neck of the cartridge is adapted to cut away the central portion of the sealing disc. The cartridge is slidably carried within a housing 14 which is screwed to a bushing 13 which forms a filling opening for the container. An extension 31 of the housing engages a member 28 to force the latter into sealing engagement with the disc 27. In use, a plunger 18 is struck to drive the cartidge inwardly. The cutter 38 first destroys the seal 27, and the piercer 37 then punctures the cartridge. The piercer is carried by a frame 35 formed with apertures 36 by which the gas passes into, and the liquid is ejected from, the body of the container. The discharge tube is in two parts 45, 62 connected by a valve housing 48 in which is a spring-pressed valve 53 operable from outside the extinguisher.