baber/WOPTO huggingface dataset:
Patent GB-120633-A (GB)
Title: Improvements relating to Muffle Furnaces.
Inventor: HUTCHINS THOMAS WILLIAM STAINE
IPC: F27B5/00
Filed: 1917-11-17
Abstract: 120,633. Hutchins, T. W. S. Nov. 17, 1917. Muffle furnaces.-A furnace for drying and heating carbon blocks &c. comprises a number of chambers arranged round a gas-producer and connected for operation after the manner of a continuous kiln. In the construction shown, six vertical muffles a<1> - - a<6> arc arranged in chambers, which cun be put into communication with the central gas-producer c and with one another through flues at the top of the furnace controlled by dampers d, c respectively. At the bottom, each chamber communicates through connexions g with a flue h having dampers for controlling the passage of the combustion products to the stack, and inlets, controlled by dampers g', for admitting air to the various chambers. In operation, assuming that the muffle a<1> is open for drawing and re-charging, and the muffle a<4> is being fired, air is admitted to the chamber surrounding the muffle a<2>, and passes through the chamber of the muffle a' to burn with gas from the producer admitted to the chamber of the muffle an. The products of combustion escape through the chambers of the muffles a', a<6>. Vertical partitions may be provided in each chamber, to cause the air and gases to take a longer path.
Patent GB-257376-A (GB)
Title: Improvements in reversible rotary electric switches
IPC: H01H19/24
Filed: 1925-07-02
Abstract: 257,376. Oliver, C. July 2, 1925. Reversible, rotary, snap-action switches are arranged so that the movement of the contact member from one angular position to another is effected by disengaging a pawl from a pair of opposed abutments which normally retain said contact-carrying member locked, the relative movement between the pawl and the abutments being in an axial direction and upwards or downwards according to the direction of rotation. As shown in Fig. 1, the rotation of the handle C mounted on the operating spindle B causes the upward or downward movement of the end of a pawl J which is normally held 'between staggered abutments H', H<2>, Fig. 3, at the ends of inclined stops in a fixed ring G. The motion of the pawl is produced by an inward projection on the pawl engaging a helical slot B in the operating spindle which passes through the pawl, the pawl pivoting about its end J<1> which is held in a slot in the member F attached to the movable contact D which is loosely mounted on the operating spindle B. As soon as the pawl is released from the abutments H<1> or H<2> according to the direction of rotation the spring E which has been strained during the motion of the spindle producing the disengagement of the pawl moves the contact member to its next angular position with a quick action, the pawl reacting on the inclined surface of the stop H and being arrested by the next abutment H<1> or H<2>. In the modified form of the invention shown in Fig. 5, the stops K are not inclined but are arranged in the same plane, the pawl L itself being given an inclination at its engaging end so that its opposite faces L<1> and L<2> are displaced in a lengthwise direction of the operating spindle. In a further modification, the pawl may be fixed and the stop-plate carrying the series of abutments is made to reciprocate along the spindle. The switch is arranged so that lost motion occurs in its operation, the movement of the spindle B being greater than that necessary merely to ensure angular movement of the pawl to the next position.
Patent GB-1108243-A (GB)
Title: Improvements in apparatus for moulding articles from sheet plastics material
Inventor: SCHNEIDER JACK MARVIN
IPC: B29C51/20
Filed: 1964-04-22
Abstract: 1,108,243. Sheet forming. CALMEC EXTRUFORM Ltd. 22 April, 1965 [22 April, 1964; 21 Oct., 1964], Nos. 17023/65 and 17024/65. Heading B5A. Hollow articles are formed from freshly extruded plastics sheet material 6 by cooperating hydraulically operated platens mounted upon a carriage 85, the carriage being advanced down columns 16 with the sheet during the moulding operation and being retracted to its original position after disengagement of the platens in order to mould a succeeding portion of the sheet. The sheet is driven downwards by upper and lower pairs of co-operating rotating rollers 18, 19 and 21, 22 respectively, driven by chains 52, 53 which also engage a clutch mechanism mounted upon the carriage. The carriage itself is mounted upon columns 16 by four hollow cylinders 86, a diagonal pair of which slide over pistons fixed to corresponding columns so that by applying pressure fluid above or below the pistons the carriage is retracted or advanced, the rate of advancement being controlled by chains 52, 53 actively engaged therewith by the abovementioned clutch during said advancement. The other diagonal pair of cylinders 86 slide over smooth columns and are filled with pressure fluid which actuates, via suitable flexible connections, platen operating cylinders mounted upon the carriage. One of the platens carries female vacuum moulds (see Figs. 7A-7E, not shown) about which are located cutting blades, whilst the other comprises a flat platen, having blowing orifices, which may carry assist plugs if required. During the moulding the platens are advanced into contact with a stop device, in which position the cutting blades partially penetrate the sheet. After the moulding operation the platens are put under greater pressure and despite the stop device, the inherent resilience of the platens allows them to move closer together and completely sever the sheet. Instead of the sheet being vertical and extruded, separate heated preformed sheets may be horizontally moulded using the cutting arrangement described above.
Patent GB-336249-A (GB)
Title: An improved mud guard for motor bicycles
IPC: B62J15/00
Filed: 1929-06-04
Abstract: 336,249. Burke, H. H. June 4, 1929. Mudguards.-Side shields 2 applied to the peripheral mudguard 3 of a motor cycle are made in one piece, the lower portion of which is bent outwardly and downwardly at 1, 4, 5 to form a wing of concave formation. The rear ends of the parts 1 on opposite sides of the wheel are connected together at 10, Fig. 3. Each wing is fixed to a bracket 13 through which passes a bolt 14, upon which is pivoted one leg of the front wheel stand 15. The rear portions of the parts 1 are connected to a cross-bar 16, which is fixed to the end of the mudguard 3 by a bolt 17, adapted to carry the bracket clip 18 of the stand 15. The side shields may be connected to the mudguard 3, or, as shown, are connected by a bracket 19 to the front fork 20, and by a bracket 21 to the mudguard stay 22. Gutters may be fixed inside the shields to carry water rearwardly.
Patent GB-737825-A (GB)
Title: Improvements in or relating to resilient support arrangements for electric motors
IPC: H02K1/18
Filed: 1953-06-19
Abstract: 737,825. Mounting electric motors. GENERAL ELECTRIC CO., Ltd., and PAGE, B. H. June 15, 1954 [June 19, 1953], No. 17056/53. Class 35. A motor for a hair dryer has its laminated stator 2 supported within a tubular housing 1 made of insulating material by rubber or rubberlike U-shaped members 7 spaced around the periphery and having parts 8 adapted to engage keyways 9 in the inside of the housing. The free limbs of the supporting members 7 are embraced by metallic shoes 10. The stator laminations are riveted to a steel end-plate 3 having lugs 5 which locate screws 6 for holding together the frame, the yoke 2 and the supports 7.
Patent GB-222226-A (GB)
Title: Improvements in game apparatus
IPC: A63B63/00
Filed: 1923-07-02
Abstract: 222,226. Whitney, A. C. July 2, 1923. Golf, tennis, &c. practising appliances. - Relates to an apparatus for use in practising golf, tennis and similar games, of the kind comprising an arrangement whereby a ball driven into a flexible screen or net carries a portion of the screen through the mesh of an adjacent net to form a retaining pocket. The invention consists in providing one or both nets with bars, bands or equivalent devices enclosing predetermined areas for scoring purposes. As shown, a flexible net f of small mesh is suspended in front of a taut net a of large mesh. Coloured bars g forming a series of areas x, y, z of predetermined scoring values are secured to the net a. The areas may be of different colour and may be circular or of other shape. In a modification, bands of material are worked into the front flexible net to delineate the scoring areas, the back net being plain if desired. Side and top nets may be provided as shown.
Patent GB-388271-A (GB)
Title: Improvements in or relating to drives for weaving machines
IPC: D03D51/00
Filed: 1932-06-16
Abstract: 388,271. Loom driving-arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl- Ufer, Berlin.) June 16, 1932, No. 17083. [Class 142 (i).] A drive for a loom comprises a clutch K, reduction gearing Z, R, and an electric motor M provided with a flywheel S arranged either on a stub shaft, as shown, or on the shaft carrying the pinion R. The motor preferably has a pull-out slip of at least 50 per cent, i.e. has a large slip when developing maximum torque.
Patent GB-1209087-A (GB)
Title: Slide gauge
Inventor: BANCESU RADU
IPC: G01B3/20
Filed: 1968-04-09
Abstract: 1,209,087. Caliper gauges. RUMANIA MINISTRY OF MACHINE BUILDING INDUSTRY. April 9, 1968, No. 17095/68. Heading G1M. Vernier calipers which may use one scale on one side of the bar 1 for normal measurements and a double or twice full scale on the other side of bar 1 for measuring the distance between hole centres, comprise a fixed jaw a, Fig.4, movable jaws b and c on a slider 2, and a movable jaw e on a slider 4. To measure the distance between bore centres the distance A, Fig. 3 is first set off between the jaws a and b and the slider 2 screw fixed in position. The calipers are then turned over and the distance B set off between jaws c and e. Now the initial displacement of the slide 2 by the distance A means that the total displacement of slide 4 in Fig.4 is D + d + 2A and this is read on the vernier scale which is twice full scale as ¢ (D + d) + A, which is the distance C between bore centres. Distances between a and b are measured on the normal full scale and the zero of the double full scale starts at the right hand edge of the slider 2 when a and b are closed together.
Patent GB-1246229-A (GB)
Title: Ball attachment
Inventor: GORMLEY IAN GAVIN
IPC: A63B43/00
Filed: 1970-04-10
Abstract: 1,246,229. Tethered ball. SWINGBALL INVESTMENTS (PTY) Ltd. 10 April, 1970, No. 17216/70. Heading A6D. A line 20 is attached to a ball 10 by means of a curved plate 16 conforming to the inside curvature of the ball, the plate having a raised portion 14 fitting a hole 12 in the ball, the line passing through a bore 18 in the plate and being attached to a bullet shaped piece 22. The width of the plate 16 may be the same as the diameter of the raised portion 14. A ring 24 on the line may be fitted to a spiral formation on top of a pole. The bullet piece 22 and plate 16 may be made from the same material to reduce friction.
Patent GB-362877-A (GB)
Title: Improvements in the manufacture of chill and die castings
IPC: C22C9/04
Filed: 1930-06-04
Abstract: Chill and die castings are made from copper-silicon alloys which may also contain zinc and not more than 2 per cent of one or more of the metals lead, antimony, bismuth, cadmium, tin, nickel, cobalt, manganese, iron, chromium, aluminium, titanium, tungsten, molybdenum, zirconium.  A suitable alloy has the composition: 65-94 per cent of copper, 2-6 per cent of silicon, 3-28 per cent of zinc.
Patent GB-631171-A (GB)
Title: Improvements in and relating to circuits for converting a periodic voltage into a voltage of stepped wave-form
IPC: H04B14/04
Filed: 1946-06-06
Abstract: 631,171. Converting and phase changing. PHILIPS LAMPS, Ltd. June 6, 1946, No. 17293. Convention date, Oct. 1, 1945. [Class 38 (ii)] [Also in Group XL (c)] In a circuit for converting a periodic voltage into a stepped voltage, particularly for demodulating phase modulated pulses, use is made of a secondary emission valve 1 (Fig. 1). The secondary emission electrode 5 is connected to the cathode 2 via a series connection of a condenser 8 shunted by a resistance 7, a source of supply 9, supplying the voltage to be converted, and a source 10 of D.C. voltage. The anode 6 is connected to the screen grid 4 and to the source of supply 10, so that the anode has the same D.C. voltage with respect to the cathode as the secondary emission electrode 5. The impedance between the cathode and electrode 5 of the valve 1 is variable, the voltage, current curve of electrode 5 being as shown in Fig. 2. The time constant of the charging circuit of the condenser 8 comprising the source 10, the variable impedance and the source of supply 9 is made small so that the condenser 8 is readily charged when the valve conducts, whereas the time constant of the condenser 8 and resistance 7 is large so that the condenser remains charged when the valve is non-conducting. Phase-modulated pulses 19 (Fig. 5) are applied to the grid 3 of the valve via a condenser 12, and the source 9 generates a saw tooth wave 20 of the same frequency as the pulse recurrence frequency, the centre of the inclined edge of the sawtooth wave coinciding with the position of unmodulated pulses. The valve is normally cut-off, but when a pulse is applied to the grid allowing the valve to conduct the condenser 8 is charged (or discharged) to the instantaneous value of the sawtooth wave 20. It then remains charged (or discharged) until the next pulse is applied, thus producing the envelope 21, which when passed through a low pass filter produces the wave 22. If the pulses are unmodulated then a steady D.C. may be derived from the condenser circuit. Should the source 9 drive the secondary emission electrode 5 negative with respect to the cathode, then the condenser may be charged in the opposite sense as indicated by the characteristic curve of Fig. 2. In a modification the source of supply 9 may be contained in the anode 6 lead (Fig. 7, not shown). In a further embodiment phase-modulated pulses are first converted to a variable sawtooth wave, the mean value of which corresponds to the signal, and the variable sawtooth then smoothed by using it as the source 9 and applying the modulated pulses to the grid 3 (Figs. 8 and 9, not shown). Specification 628,551, [Group XL (c)] is referred to. In the Specification as open to inspection under Sect. 91, a tetrode may be used, employing the screen grid as the secondary emission electrode (Fig. 8, Cancelled, not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-439892-A (GB)
Title: Improvements in and relating to the manufacture of concrete or like pipes, culverts and the like
IPC: F16L1/038
Filed: 1934-06-12
Abstract: 439,892. Moulding pipes, culverts, &c. SMITH, F. H., 30, Craven Street, Strand, London. June 12, 1934, No. 17363. [Class 87 (ii)] Pipes, culverts, or other hollow bodies of cement, concrete or the like, are moulded around a flexible inflatable core which is coupled at its open end to an extension pipe, longitudinally rigid, so that after the concrete has sufficiently set, the core may be pulled inside the extension pipe. The apparatus is shown for moulding a pipe in situ, the rubber core 4 having a withdrawing lanyard 6 which is carried through the flexible metallic extension tube 8 of the core to a winch 11. A metal connecting tube 9 is secured between the core 4 and the extension 8, and a pipe 13 connects the tube 9 with the bottom of the pressure-head tank 12 through a valve 14. The upper end of the tube 8 may be raised or lowered by the pulley structure 15, 16 to vary the head applied to the core. The tube 9 is preferably of somewhat larger diameter than the core to facilitate the withdrawal of the core, which need not be by reversing, as shown, but by bodily withdrawing it after deflation. The pipe 13 may be dispensed with, the pressure being applied to the core by connecting the tube 8 with the lower part of the tank, the lanyard being disconnected from the winch, or the tube 8 may be permanently connected to the lower part of the tank, the lanyard then passing over the tank side to the winch. A vertical series of valve controlled overflow apertures may be provided in the side of the tank for the regulation of the pressure head, and a water supply cock may be provided to compensate for leakage from the core. The pressure within the core may be increased above the standing head by closing the end of the tube 8 and pumping in air, gas or water through a branch pipe. A relief valve and pressure gauge may be provided on the tube 9 or elsewhere. Specification 355,517 is referred to.
Patent GB-255104-A (GB)
Title: Improvements in or relating to processes for the separation of the constituents of ternary gaseous mixtures
IPC: F25J3/04
Filed: 1926-07-12
Abstract: 255,104. Air Reduction Co., Inc., (Assignees of Nuys, C. C. van). July 11, 1925, [Convention date]. Separating gases by liquefaction. - A ternal'y gaseous mixture, e.g. air considered as a mixture of oxygen, argon, and nitrogen, is separated to obtain a gas rich in the element (argon) of intermediate boiling point, by withdrawing from the usual rectification column a liquid or gas rich in this element and rectifying this extract in an auxiliary column heated by the whole or a part of the incoming compressed and cooled gas mixture to be separated. The cooled compressed air &c. is delivered through a pipe 33 to a heatexchanger 34 through which the separated elements pass away. A portion is led through a liquefier 44 traversed in the opposite direction by the separated elements, and either directly or through the heating coil 26 of the auxiliary column to pipes 49, 9 leading to the base of the main column. The other portion is led through an expansion engine 39 and either directly or through the auxiliary heating coil to the pipe 9 and the main column. In this column liquid is formed in the base, and gas rises through tubes 10, where it is selectively liquefied, and passes into a condenser 15 where. the gas, being nearly pure nitrogen, is liquefied by liquid flowing over it, viz. liquid oxygen supplied from the base through a valved pipe 18 and liquid nitrogen delivered from the lower header of the condenser through a valved pipe 20. These liquids pass over trays 22, 23 and are rectified, the liquefied portion falling into the space around the tubes 10. At a point where argon accumulates the liquid is withdrawn by a pipe 24 into the auxiliary column, where it is selectively vaporized, the argon and nitrogen rising through tubes 27 and passing off to the liquefier 44, while the oxygen is drawn off in liquid form through a valved pipe 30 to the main column. The tubes 27 are surrounded by nitrogen gas delivered through a pipe 53 from the top of .tlhe main rectifier and by liquid nitrogen from the condenser 15, the nitrogen being led off to the liquefier through a pipe 54. Oxygen gas is delivered to the liquefier through a pipe 32 leading from the space surrounding the tubes 10 in the main column.
Patent GB-329191-A (GB)
Title: Improvements relating to safety devices for press and other machinery employing reciprocable tools
IPC: F16P3/00
Filed: 1929-06-06
Abstract: 329,191. Steuart, J. N., and Kork-NSeal, Ltd. June 6, 1929. Throwing machinery out of action by obstruction of guard device.-A safety device for pressing, stamping, drilling, and like machines having a reciprocating tool comprises means normally lying in or movable into the path of the tool to arrest its descent unless put out of action by the unobstructed descent of a guard member. A flanged guard sleeve 15 rests on the tool 12 and is caused to descend therewith by a spring 21 acting on the supporting rod 18, which has a cam or swelling 22 adapted to close pivoted clamping-jaws 26 about the tool-carrier 13. If the guard 15 is not obstructed by the operator's hand the cam 22 passes beyond the jaws, which are then reopened by a spring 29 just before a collar 27 on the tool-carrier 13 reaches them, so that the descent of the tool 12 is not interrupted. In a modification, the jaws 26 are crossed scissors-fashion and are spring-closed, the cam 22 being placed higher on the rod 18, so that it positively opens the jaws as the guard reaches the work-support 10. The guard 15 and collar 27 are adjustably carried by the parts 18, 13 respectively, and the safety device, being detachable, can be applied to existing machines. The arresting-device is mainly applicable to machines in which the tool is lowered by the foot-pressure of the operator, but can be used on power-driven machines if a slipping coupling is provided in the drive. The Provisional Specification describes also the guard as acting to declutch the machine instead of positively arresting the tool.
Patent GB-912520-A (GB)
Title: A steam turbine with axial steam admission
IPC: F01D9/04
Filed: 1961-05-12
Abstract: 912,520. Turbines. LICENTIA PATENTVERWALTUNGS-G.m.b.H. May 12, 1961 [May 16, 1960], No. 17413/61. Class 110 (3). In an axial flow steam turbine with a single or double casing split along an axial horizontal plane comprising inlet nozzles divided into groups, each group being within a separate nozzle casing one or more of which are partially or wholly below the horizontal dividing plane and detachably fastened to the lower half of the casing has the lower nozzle groups detachably connected to a valve casing disposed at the outer side of the upper part of the housing by inlet pipes which extend substantially vertically inside the housing and are supported by the housing at one or more bearing-points so that they can expand freely in a longitudinal direction. The casings 4 and 5 of an axial flow steam turbine are split along an axial horizontal plane 44. Nozzle groups 22 in nozzle casings 33 are connected to the valve casing 6 by inlet pipes 34 split along the horizontal plane. The two parts of each pipe are sealed at their joint by a piston-ring seal 7, so they may each expand longitudinally. The upper parts of the tubes 341 are fastened to the upper part of the casing 51 and are made integral with the nozzle casings 33 above the dividing plane except for the central nozzle casing which is connected directly to the valve easing by an integral inlet pipe. In the space 45 between the casings the inlet pipes are combined to form connecting-pieces 9. Where all the inlet pipes join the valve casing they are sealed by piston-ring seals 7 so that they may expand longitudinally. The lower nozzle casings are fastened to the lower casing 52 by connecting-members 55 and the inlet pipes supported by groove-shaped bearings 8 that allow longitudinal movement. In a modification the inlet pipes are integral with the nozzle casings and pass through both inner and outer casings into the valve casing.
Patent GB-201361-A (GB)
Title: Improvements in, or relating to, wire fencing
IPC: E04H17/26
Filed: 1922-06-24
Abstract: 201,361. Bayliss, Jones, & Bayliss, Ltd., and Bayliss, F. W. June 24,1922. Securing fence wires to standards and droppers.-Headed pins Bare passed from the outside through holes in the base of V- or other section droppers &c., and are subsequently bent round the liorizontal wires C. The pins may be bent in the form of an L before insertion in the droppers, so as to leave a space c into which the wire is placed before the pins are bent further,