baber/WOPTO huggingface dataset:
Patent GB-201524-A (GB)
Title: Improvements in or relating to apparatus for winding a blank of paper or like flexible material into the form of a cone
IPC: B31C1/08
Filed: 1923-04-14
Abstract: 201,524. Southern Novelty Co., (Assignees of Kennedy, G. H.). July 25, 1922. [Convention date]. Paper and fibrous pipes and tubes.-Conical paper tubes, especially for use in the textile industry, are made by winding paper blanks on a mandrel provided with a rotary device for gripping the central part only of the front edge of the blank. A slotted sleeve 18. Figs. 1 and 2, may be let into the middle part of the mandrel 10. One edge 21 of the sleeve is bevelled inwardly so as to facilitate insertion of the paper 32 between this edge and a flattened part 29 of the mandrel. Beyond the ends of the sleeve this flat portion merges into curved recesses 30, allowing the end parts of the edge of the paper to lie on the surface of the mandrel. The sleeve can be turned into or away from the gripping position shown in Fig. 2 by means of a radial pin 26 and axial shaft 24. A spring 37 normally retains the shaft and sleeve in the gripping position. Release is. effected by means of a rack 40 and pinion 41, operated by hand or by a cam 47 and lever 43. When the shaft is rotated to free the paper, the second bevelled edge of the sleeve wipes the pasted edge of the paper against the interior of the cone tube, so as to produce a smooth inside surface. The ends of the tube may be trimmed while on the mandrel. The Specification as open to inspection under Sect. 91 (3) (a) describes also another construction, in which the mandrel is made with a recess 59, Fig. 6 (Cancelled), and an overhanging lip 60 against which the paper, inserted over a flat surface 62, is clamped by ,a radially-sliding block 63. This is actuated by a longitudinally-sliding bar 5-3 the wedge-shaped end of which is connected to the block by tongues and grooves 55. This subject-matter does not appear in the Specification as accepted.
Patent GB-309589-A (GB)
Title: Improvements in or relating to tripod stands
IPC: F16M11/16
Filed: 1929-04-02
Abstract: 309,589. Akt.-Ges. C. P. Goerz Optische Anstalt. April 14, 1928, [Convention date]. Tripod stands; stand heads.-In order to adjust an instrument carried by the head of a tripod stand, one leg is eccentrically secured to the stand head. In the construction shown a non-rotatable bolt 5, carried by the bifurcated end of the leg 4, passes through a hole in a block 7, provided with a handle 6, rotatably secured in lugs 3 of the stand head, the bolt being positioned eccentrically relative to the axes of the block.
Patent GB-817611-A (GB)
Title: Improvements in and relating to fluid-blast electric circuit breakers
Inventor: HEWITT JOHN
IPC: H01H33/04
Filed: 1955-04-07
Abstract: 817,611. Fluid-blast switches. ENGLISH ELECTRIC CO. Ltd. April 5, 1956 [April 7, 1955], No. 10253/55. Class 38 (5). An oil or other fluid blast switch has a moving contact 11 which is withdrawn through an arcing-chamber 13 and has a shoulder 11a which allows a bridge 23 to move downward so that the movement of a linkage 24... 27 allows the contact assembly 10a, 18, 10, 21 to move upward under the action of a spring 20. When contact is broken arc pressure transmitted through contact 10 to chamber 17 exerts a pressure on the contact assembly at 18 so that the assembly is prevented from moving under heavy current conditions. Under light current conditions the pressure is insufficient to prevent the movement of the assembly and this produces the contact separation characteristic shown in Fig. 2. A valve 19 allows the fluid to enter chamber 17 but ensures that it is driven into the contact chamber 12 when the assembly 10 rises.
Patent GB-268971-A (GB)
Title: Improvements in and relating to telephone receivers
IPC: H04R13/02
Filed: 1926-04-19
Abstract: 268,971. Sterling Telephone & Electric Co., Ltd., Blades, N., and Beard, J. R. April 19, 1926. Magnetic instruments. - A moulded insulating casing for telephone receivers is recessed to receive the magnet structure so that only a small fraction of the length of the magnet poles projects beyond the general interior surface of the case, this interior surface being in close proximity to the rim supporting the diaphragm. The casing is preferably of the kind shown, comprising a circular portion 1 with a rectangular portion 2 extending transversely across the back thereof. The interior of the portion 1 is made very shallow and a deep rectangular recess 5 extends trough this portion into the rectangular portoin 2. The straight permanent magnet 6 and L-shaped pole pieces 8 are secured by screws to metal insets 7 in the bottom of the recess 5, each pole piece being prevented from turning on its screw by a slip of steel 9 having its edges bent at right angles to produce a channel section. The circular portion 1 is provided with three small recesses 3, Fig. 3, which receive metal terminal slips, two of which receive the terminals of the magnet winding and the ends of the flexible conductor which enters the casing through an opening 4, Fig. 1, the third terminal slip being used, if desired, to join the adjacent ends of the two bobbins. The Provisional Specification describes an alternative method of recessing the casing so as to accommodate the magnet and its pole pieces.
Patent GB-718546-A (GB)
Title: Plaster compositions and products
IPC: C04B14/42
Filed: 1952-04-24
Abstract: A mouldable and settable mass is obtained by adding water to a mixture of calcined gypsum plaster and drawn textile glass strands, each strand section comprising a plurality of substantially straight resilient textile glass filaments 1/8 to one inch long, which has been mixed until the fibres are uniformly distributed, the glass fibres being from 0.03 to 1.0 per cent. of the total weight of gypsum and filaments.  Drawn textile glass fibres are produced as continuous filaments each of which is discharged in a molten state through an orifice and is attenuated by winding on a high-speed drum.  The filaments may be held by a temporary binder such as up to 1 per cent. starch or a thermoplastic resin.  Wallboard may be produced by plying between paper.
Patent GB-927345-A (GB)
Title: Swaging machine
IPC: H01R43/042
Filed: 1962-03-19
Abstract: 927,345. Jointing by stamping. BURNDY CORPORATION. March 19, 1962 [March 20, 1961], No. 10411/62. Class 83 (4). A crimping tool for indenting a workpiece, particularly for securing an electrical contact 91 to a wire 110 comprises a set of radiallyacting dies 80 spaced from each other by less than 180 degrees, and means for transporting the workpiece to the centre of the dies along a path lying in the plane of the dies. The latter are actuated through spring-biased rockers arms 26, Fig. 4, by cam rollers 24 mounted for universal alignment between upper and lower rotatably mounted cam plates 18, 22. The latter are oscillated by a crank-arm 86 pivoted at 90 and having gear teeth 88, Fig. 3 (not shown), engaging a gear sector on the camplate 18. The contacts 91 are supplied in a belt 92 which is moved stepwise through the tool by a reciprocating finger 104, Fig. 13 (not shown), actuated from the cam-plate 18 through a rocker-arm 124, Fig. 8 (not shown). After crimping the contact to the wire they are released from the belt by severing the tie strip 100 which holds the contact in the belt. This is effected by radially acting tools 232, 234, Fig. 7 (not shown), actuated from the camplate. The empty belt may be wound on a reel or chopped into pieces by a blade 114.
Patent GB-233869-A (GB)
Title: Improvements in dies for moulding phonograph records and the like
IPC: B29C43/02
Filed: 1924-04-28
Abstract: 233,869. Golby, F. W., (Brunswick-Balke- Collender Co.). April 28, 1924. Moulding phonograph records.-In dies for moulding phonograph records &c. of the type wherein an ejector pin 59 journaled slidably in the die is held yieldably in projecting position through an apertured matrix 20, a manuallyoperable plunger 68 journaled in the die is adapted to actuate the ejector-pin and normally is held in retracted position by yielding means. The plunger 68 is mounted at right angles to the pin 59 and has an inclined surface 67 at one end adapted, in operation, to engage a corresponding surface 66 of a block 65, which is supported by the pin 59 and mounted slidably in a platen 18 of a moulding press. A spring 70 holds the plunger 68 in inoperative position. The matrix is mounted in a die-member secured to the platen 18 and the coacting matrix 21 is mounted on a die-member 11 secured to the plunger 16. A spring 60 holds the pin 59 in extended position,. and a stop 63 limits the downward movement. The central aperture in a record is formed by a punch-pin 50 screwed in an aperture in a labeldepressing disc 29 on the matrix 21, and when the members 10, 11 are brought into engagement a head 52 of the pin 50 forces a button 58 of the mouldable compound 47 into an aperture 55 formed in the label-depressing disc 28 of the upper matrix 20. When the members 10, 11 are brought out of engagement the pin 59, actuated if necessary by the plunger 68, operates to eject the button 58 and also the record. Heating and cooling channels 12 are formed in the plates 13, 14 of the upper and lower die-members. The matrices are held in position by clamping-rings 22, 24, and locking-rings 23, 25, and the labeldepressing discs 28, 29 have bevelled edges which engage the corresponding matrix. The, diemembers are insulated from the various parts of the press by asbestos pads 17, 19. A record of the kind described in Specification 233,511, [Class 40 (ii), Phonographs &c.], having a cylindrical aperture with flared ends is formed by providing the pin 50 with an annular ring 56, and the labeldepressing disc 28 with a lip 57. Specification 233,518 is also referred to.
Patent GB-492199-A (GB)
Title: Improvements in or relating to synchronising clutches
IPC: F16D23/04
Filed: 1937-04-14
Abstract: 492,199. Change-speed gearing; claw clutches. OLIVER, A. V. April 14, 1937, No. 10558. [Class 80 (ii)] In a clutch for use in change-speed gears of motor vehicles in which positive and silent engagement between a driving and driven element is obtained by first bringing their rotational speeds into synchronism, friction plates such as k, l slidably mounted upon and in constant positive operative connection with a driving element h and driven element i respectively and embraced by a fork m, are clutched together to synchronize the speeds of the driving and driven shafts by moving the fork in one direction, and when the fork is moved in the other direction, one of the members is brought into a position in which it positively engages both the driving and driven shafts. In the change-speed gear shown, four clutch engaging forks m-m<3> are preselectively connected to an operating bar n, operated from the main clutch pedal in the manner described in Specification 484,816. Specification 459,556 also is referred to.
Patent GB-1063893-A (GB)
Title: Process for the manufacture of hydrazine and derivatives thereof
Inventor: RILEY CHARLES PHILIP
IPC: C01B21/16
Filed: 1964-03-12
Abstract: Semicarbazide is produced by adding Cl2 to an aqueous slurry of urea at a temperature below 95 DEG  C., e.g. 0-40 DEG  C., reacting the mixture with an aqueous alkaline solution at a temperature of at least 85 DEG  C., e.g. 90-95 DEG  C., and then either (a) acidifying to pH 7-9, e.g. with H2SO4, HCl or H3PO4, or acid salts thereof, at 50-95 DEG  C., or (b) acidifying to pH 1-2 to precipitate the salt of the hydrazine present which is separated, and bringing the filtrate to pH 5-7 with NaOH, e.g. at 25 DEG  C.  The semicarbazide may be recovered as the semicarbazone of benzaldehyde, acetone or furfural. 2.7-5 mol of urea may be used per mol of Cl2; part of it may be replaced by gaseous, liquid, or aqueous NH3, and part of it may be added later. The addition of gaseous or liquid Cl2 may be effected at 0-30 DEG  C.  At least 3.75, e.g. 4, mols alkali, e.g. NaOH, KOH, CaO, may be used per mol Cl2.  The reaction may be effected in the presence of metal ion inhibitors, e.g. gelatine, glue, Na diethanol-glycine.  The process may be operated continuously or in batch. The initial steps are identical with those used to produce hydrazodicarbonamide in Specification 969,439.ALSO:Hydrazine is produced by adding Cl2 to an aqueous slurry of urea at a temperature below 95 DEG C., e.g. 0-40 DEG C., and reacting the mixture with an aqueous alkaline solution at a temperature of at least 85 DEG C., e.g. 90-95 DEG C.  The N2H4 may be recovered by distillation or by acidifying to pH 1-2 with H2SO4, HCl, or H3PO4 or acid salts thereof, at 0-30 DEG  C., to precipitate the acid salt, e.g. monohydrazine sulphate.  2.7-5 mol. of urea may be used per mol. of Cl2; part of it may be replaced by gaseous, liquid, or aqueous NH3, and part of it may be added later. The addition of gaseous or liquid Cl2 may be effected at 0-30 DEG C. At least 3.75, e.g. 4, mol. alkali, e.g. NaOH, KOH, CaO, may be used per mol. Cl2.  The reaction may be effected in the presence of metal ion inhibitors, e.g. gelatine, glue, Na diethanolglycine. Salts, e.g. NaCl, Na2CO3, precipitate out and are removed. The process may be operated continuously or in batch.
Patent GB-105704-A (GB)
IPC: B25B13/46
Abstract: 105,704. Trengove, G. H. Sept. 12, 1916. Ratchet braces.-In a combined ratchet spanner and drilling-device, the spanner, Figs. 3 and 4, comprises a shank 1 having at one end an hexagonal ratchet jaw 2 jcurnalled in a recess 5. Ratchet teeth 8 around the jaw 2 are engaged by one end of a double-ended pawl 9 pivoted on one of the rivets 7 which secure a cover plate 6 over the recess 5. A leaf spring 10 controls the pawl 9, and the pawl may be reversed when worn by removing it from its pivot and turning it over. The drilling-device, Fig. 6, is preferably in two parts A, B, the member A having a conical point a' to engage a fixed abutment and a threaded bore a to receive the screwed projection b of the member B, which has an hexagonal exterior b<1> for engagement by the ratchet spanner, a shoulder b' preventing the spanner from slipping downwards. The member B is formed with a socket for the bit c. The spanner may have a fixed jaw 3 at the end of the shank.
Patent GB-491394-A (GB)
Title: Improvements in or relating to pallet levers for clockwork mechanisms
IPC: G04B15/14
Filed: 1937-04-14
Abstract: 491,394. Clockwork escapements. JUNGHANS AKT.-GES., GEB. April 14, 1937, No. 10632. Convention date, April 25, 1936. [Class 139] An anchor a if made by a pressure casting or moulding process, preferably from synthetic resin and is formed with pallet slots in which the pallets b are held by screws f, the main axes of which extend in the longitudinal direction of the anchor arms. The anchor may be of metal alloy ; and the pallets may be cast or moulded into the anchor during the formation of the latter. The pallet slots are closed at the front and rear faces of the anchor. The Specification as open to inspection under Sect. 91 comprises also the two constructions of Fig. 2 (Cancelled). As shown in the right half of this Figure, the pallet b is held in an open-sided slot by a plate d and screws c which pass transversely through the pallet arm. As shown on the left, the pallet b is held by the head of the screw e. This subject-matter does not appear in the Specification as accepted.
Patent GB-1457616-A (GB)
Title: Switching arrangement
Inventor: STADIGH H-G
IPC: H01F7/20
Filed: 1974-03-11
Abstract: 1457616 Electromagnets; Electromagnetic switches LINDEN-ALIMAK AB 11 March 1974 [9 March 1973] 10671/74 Headings H1P and H1N A switching arrangement (Figs. 1, 2) comprises an elongated electromagnet and a magnetic field controlled switching element 6, 7 wherein either the magnet or the controlled element is movable in a straight line longitudinally of the electromagnet axis one relative to the other; wherein the electromagnet is enclosed within a non-magnetic housing 5 and comprises an elongated magnetic core 1 with dependent ferromagnetic portions 2, 2<SP>1</SP> together with non- magnetic bars; extending longitudinally so as to define guides extending laterally of the coil for an elongated longitudinal winding 4. The magnetic field F is concentrated in a longitudinal region outside the coil surface to operate the adjacent switching element 6, 7 within a substantially longitudinally extending switching zone. The electromagnet may alternatively operate magnetically controlled semiconductors, and is applicable to the locking and flow positioning switches of elevators. The core may be shaped as a U-beam, or be a composite of rectangular magnetic and non-magnetic sections (Figs. 3, 4 not shown).
Patent GB-311901-A (GB)
Title: Improvements in or relating to thermostats
IPC: G05D23/12
Filed: 1929-01-03
Abstract: 311,901. Catton, J. L. Jan. 3, 1929, Thermostats.-A thermostat of the kind in which a float resting on an expansible.liquid acts as a valve in conjunction with an adjustable seat has a further seat on which the float can be pressed by the adjustable seat to seal the liquid within its container and so make safe for transit and storage. In the form shown in the Figure, the float is formed as a ball K and rests on the liquid H in a container A, the capacity of which can be varied by means of a displacer N. The seat F is adjustably screwed in the casing by means of a head M and has ports J communicating with the outlet. The supplementary seat X is formed on a flange between the container A and a chamber E housing the ball. A conical or flat lift valve, a hinged valve, or a piston valve may replace the ball, and the seat may be notched or provided with a bleed port or overflow chamber to prevent complete extinction of the burner. An adjustable bye-pass may be provided in the casing.
Patent GB-1093505-A (GB)
Title: Improvements in or relating to forced flow boilers
IPC: F22B37/14
Filed: 1966-03-11
Abstract: 1,093,505. Forced flow steam generators. BABCOCK & WILCOX Ltd. March 11, 1966 [March 11, 1965], No. 10712/66. Heading F4A. Feed water, after passing through a preheater 1, and heat exchange surfaces 2 forming part of the lining of the hopper of a combustion chamber, enters the upper part 4 of the radiant evaporative surface of a forced flow boiler through a pipe 5. It is then discharged through pipe 6 into a header box 7 to pass through a second lower part 3 of the radiant evaporative surface. Part of the feed water under control of regulating valve 11 may by-pass the upper part 4 and flow directly to the lower part 3 through by-pass line 8. The parts 3 and 4 are formed from vertical loops made up by upright tube lengths interconnected by return bends. This arrangement minimizes temperature differences between adjacent tubes, even at low loads, enabling the boiler walls to be of welded tube construction.
Patent GB-514481-A (GB)
Title: Improvements in means of adjusting rotatable control spindles
IPC: H03J1/14
Filed: 1938-04-08
Abstract: 514,481. Wireless receiving sets. COLE, Ltd., E. K., and SHACKELL, A. April 8, 1938, Nos. 10750 and 16811. [Class 37] [Also in Group XXIV] A coarse and fine tuning adjustment comprises an epicyclic friction gear between the control knob 14 and the spindle 2 of the variable tuning-element 1, wherein fine tuning is obtained by rotation of the knob in either direction until a member 15 on the knob strikes an abutment 16 connected to the reaction member 7 of the gear, whereafter the entire gear rotates to give a direct drive for coarse tuning. The gear comprises a reaction member constituted by a cup 7 mounted freely on the shaft 2 and normally prevented from rotation by frictional engagement with a fibre washer 6 on the condenser end plate 3. A differential assembly 9 is secured to the spindle 2 and comprises two dished wheels 12, the hubs 11 of which frictionally engage the lip of the cup 7 while the wheel edges are in frictional engagement with a sleeve 4, to which the knob 14 is attached and which rotates on the spindle 2. Thus rotation of the knob rotates the discs 12 in opposite directions, and the assembly 9 rotates, together with the tuning spindle 2, at a much reduced speed, by means of the hubs 11 which travel round the rim of the cup 7. When the member 15 on the knob 14 strikes projection 16 on the cup 7, the friction between cup 7 and fibre washer 6 is overcome and the entire gear rotates as a direct drive. The only unbalanced reaction in the gear is that due to the axial pressure of the members 11 on the cup 7, and this reaction provides the necessary frictional engagement between the cup 7 and washer 6. The contact between members 15 and 16 may be used electrically to mute the receiver while tuning, or to disable the A.F.C. circuits.
Patent GB-1137513-A (GB)
Title: Improvements in and relating to processes for the manufacture of heat-recoverable articles
IPC: B29C61/04
Filed: 1966-03-11
Abstract: 1,137,513. Cable jointing. RAYCHEM CORP. 11 March, 1966 [12 March, 1965], No. 10817/66. Heading H2E. A heat-unstable article with a polymeric fusible insert for use, as described in Specification 1,062,043. in sealing and enclosing cable joints, is made by placing the insert, which is of stressed material, e.g. due to extrusion-forming, within the heat-unstable article, and applying sufficient heat to release the stresses in the insert so that it expands into engagement with the heat-unstable article without either melting the insert or causing recovery of the article. In the example, an extruded tube of ethylene-ethyl acrylate copolymer is fitted within an irradiated polyethylene tube by heating for 10 mins. at 105 C.
Patent GB-892395-A (GB)
Title: Improvements in or relating to the reduction of zinc ores and other zinc-bearing materials
Inventor: QUINTIN ALBERT ANDRE JOSEPH
IPC: C22B19/16
Filed: 1960-03-28
Abstract: In a modification of the apparatus described in the parent Specification the mixture of Zn and CO leaving the retorts passes through a filter medium to remove droplets of impure zinc.  The filter may be in the "collector-condenser" chamber into which the retorts discharge and in which impure zinc condenses or may be interposed between it and the subsequent condensers.  The medium may consist of calcined refractory earth, coke, semi-coke or charcoal. Filtration efficiency may be increased by wetting the medium, with for example molten zinc or lead, which is recycled. Alternatively, molten zinc chloride, sodium chloride or ammonium chloride or small amounts of gaseous chlorine may be sprayed into the gaseous mixture. Before filtration, the gases may be subjected to physical forces such as induced turbulence, vibrations, ultrasonic waves, and magnetic or electromagnetic fields to improve coalescence of the drops.