baber/WOPTO huggingface dataset:
Patent GB-593232-A (GB)
Title: Improvements in and relating to the baking of hot-plate goods
IPC: A21B5/02
Filed: 1945-07-13
Abstract: 593,232. Baking-apparatus. WESTMORELAND, A. G. July 13, 1945, No. 17896. [Class 28 (i)] Hot-plate goods, e.g., crumpets, are baked on hot-plates (e.g. 10a or 11a) which form part of a conveyer (10 or 11) moving in synchronism with another conveyer 12 carrying the batter holding rings, the batter resting on or being near to the hot-plates. The raw material, e.g., batter, is placed in moulds or rings 12a open at top and bottom, carried by an endless conveyer 12, the lower run of which contracts the upper run of the hot-plates 10a of an endless conveyer 10, so that the bottom of the crumpet is first cooked. The moulds may have bevelled sides the minimum diameter being at the middle of the height to hold in the crumpet. At the end of the bottom cooking, a fixed parting knife 16 separates the bottom of the crumpets from the hot-plates as the conveyers 12 and 10 diverge at the left end of the machine. A band support 14 and a plate support 15 prevents the crumpet from falling out of the moulds until they reach the upper run when they contact the hot-plates 11a of the upper run of a shorter endless conveyer 11, the hot-plates of which cook the other side of the crumpet. Thereafter another fixed parting knife frees the cooked crumpet from the hot plates. The crumpets are ejected from their moulds by the projections 20 of a sprung rotary frame 19 so that they drop down to a delivery conveyer 13 for packing. The upper runs of each hotplate conveyor are heated, e.g., by gas burners or electric radiants 21 with thermostatic control. The apparatus may be cased in as much as convenient.
Patent GB-437760-A (GB)
Title: Pistons
IPC: F02F3/00
Filed: 1934-06-16
Abstract: 437,760. Casting composite pistons. FLAMMANG, J., 364, Mission Court, University City, BOWSER, P. L., 6111, Plymouth Avenue, St. Louis, and ERNST, H., 6110, Wyman Avenue, Pine Lawn, all in Missouri, U.S.A. June 16, 1934, No. 17924. [Class 83 (i)] [See also Group XXVI] A piston comprises a ferrous skirt 1 having an extension 4 embedded during casting in a light metal head 6. A mould for the piston comprises side sections 10 carrying cores 13 for the pin bosses and members 12 between which and the sections 10 the preheated skirt member 1 is mounted. A central core section 11 is movable downwardly to free the members 12 from the interior of the piston after casting. The extension 4 may have dovetail notches in its edge.
Patent GB-623396-A (GB)
Title: Improvements in or relating to voltage regulators
IPC: G05F1/33
Filed: 1946-06-14
Abstract: 623,396. Automatic voltage regulation- STANDARD TELEPHONES & CABLES, Ltd. June 14, 1946, No. 18005. Convention date, Aug. 6, 1945. [Class 38 (iv)] A voltage regulator for a rectifier power supply system comprises a " primary " rectifier 3, which may be a motor generator or a copper oxide type rectifier, with its input connected through the winding 5 of a saturable reactor to an A.C. supply 1, and its D.C. output connected through a winding 7 of the saturable reactor to a load circuit 4. An auxiliary rectifier 9 fed through a transformer connected across the A.C. supply energizes two other D.C. windings 13 and 8 respectively on the reactor, the polarity of winding 13 being in opposition to that of windings 7 and 8, and the current through winding 8 being controlled by a variable resistor 10 which is in series with it and regulated by means responsive to the D.C. output voltage of the system. Since all the D.C. load current passes through winding 7 the latter acts as a filter choke, and the number of turns is such that the flux produced at full load is just insufficient to provide saturation, the saturation being completed by the flux derived from winding 8. The variable resistance 10 in series with the winding 8 comprises a carbon pile which is regulated by an electromagnet 11 connected to a tapping from a potentiometer 12 across the output leads 4. The flux derived from winding 13 is arranged substantially to neutralize that due to winding 7 at zero load. An anti-hunting effect on the operation of the carbon-pile is obtained by connecting the winding of the electromagnet 11 in series with the primary winding of a transformer 14 which has its secondary winding across the choke winding 8.
Patent GB-920362-A (GB)
Title: Improvements in or relating to machinery guards
Inventor: ATKINSON RICHARD LESLIE
IPC: F16C35/067
Filed: 1960-05-21
Abstract: 920,362. Bearings. ATKINSON'S AGRICULTURAL APPLIANCES Ltd. April 10, 1961 [May 21, 1960; Aug. 20, 1960], Nos. 18027/60 and 28905/60. Class 12 (1). [Also in Group XXIV] A telescopic guard 20 is mounted on a telescopic shaft 21, 22, universally coupled at 23, 24 to driving and driven shafts by radially expansible bearings 40 which engage grooves 38 in the shaft or universal joint yoke. As shown, the bearing 40 comprises an axially split nylon ring 37 surrounded by a steel spring clip 46 and connected by a reduced neck portion 42 to a collar 36 which is riveted at 33 to the guard 20. In Figs. 5-10 (not shown), the bearing comprises balls carried in radial holes in a member fast with the guard and surrounded by a spring clip which urges the balls into the groove in the shaft or yoke. The ball carrying member may be provided with a grease nipple.
Patent GB-595814-A (GB)
Title: Improvements relating to motor fuels
IPC: C10L1/10
Filed: 1945-07-14
Abstract: Gasolines containing tetra-ethyl lead as an anti-knock reagent, are stabilised by the addition of a small proportion of a lead salt. Mixtures of salts may be used, which may be inorganic or organic lead salts.  The gasolines may contain free or inorganically or organically combined sulphur and the lead salts are somewhat selective in their stabilising action accordingly. The lead salt may be added to the finished fuel, or to its constituents prior to blending, or incorporated during blending or by washing the gasoline with a solution of the lead salt.  The lead salt may be added in alcoholic solution.  The salts specified comprise lead acetate, chromate, nitrate, chloride, stearate, palmitate and oleate and mixtures of equal weights of lead chloride and acetate, lead chloride and nitrate, lead palmitate and acetate.
Patent GB-680950-A (GB)
Title: Improvements in cutting devices for mounting on a chain in cutting machines
IPC: E21C35/19
Filed: 1950-07-19
Abstract: 680,950. Pick mounting endless chains. MEUTSCH. A. July 19, 1950 [Jan. 20, 1950; Feb. 1, 1950], No. 18061/50. Class 68(i) To enable one or more picks to be mounted in a holder 1 on a link of an endless chain, the shank 12 of each bit has a conical taper and fits into a complementary shaped cavity 2 in the holder, the cavity widening in the form of a hollow cone in the direction of the holder's advance, the axis of the cavity being parallel to this direction. The bit head 13 is' set at an angle of between 90 degrees and 100 degrees to the axis of the shank. To prevent rotation of the bit a slot is formed in the holder running parallel to the axis so that the faces of the slot support the bit. The cutting tip 15 of the bit is held in position prior to being soldered therein by a retaining body of solderable unalloyed steel. formed of two legs 25, 26 bent at an angle to each other of less than 90 degrees, one leg being secured by riveting or being screwed into the shank, whilst the other leg bears against the cutting tip to hold it in position.
Patent GB-1244531-A (GB)
Title: Improvements in feeding devices for suction air conveyors
IPC: B65G53/42
Filed: 1969-04-09
Abstract: 1,244,531. Pneumatic conveyers. ATLAS COPCO A.B. 9 April, 1969 [29 April, 1968], No. 18093/69. Heading B8A. A suction head 11 for feeding granular material 14 to a suction pipe 17 includes two longitudinal side walls 13 which support the head on the material as it is slid along the surface through, a channel 12 between the walls 13 and open to the leading edge of the head so that the channel is filled with material as it is advanced, a suction mouth 16 in the channel, and an air passage 18 opening into the channel at the leading side of the suction mouth. The channel 12 extends right through the head but is closed on the trailing side of the mouth 16 by plate 22 or 23 depending on which way the head is being moved by a handle 24. The latter is coupled to a valve mechanism 20 including the plates 22, 23, whereupon the relevant plate closes the channel 12 according to the direction of force on the handle 24, an appropriate air passage 18, 19 being simultaneously closed by the appropriate plate. The air drawn through the passages 18, 19 tends to fluidize the material in the region of the mouth 16.
Patent GB-826198-A (GB)
Title: Improvements in or relating to oxygen breathing masks and helmets
IPC: A62B18/08
Filed: 1957-06-07
Abstract: 826,198. Respiratory masks. FRANKENSTEIN & SONS (MANCHESTER), P., and NEUMARK, O. W. June 9, 1958 [June 7, 1957], No. 18114/57. Class 81 (2). A head harness for use with high-altitude breathing equipment has an inflatable bladder placed at the back of the head, connected to the mask by inextensible straps and inflated by the oxygen supplied to the mask. As the oxygen pressure is increased with altitude the increased backward pull by the bladder holds the mask more firmly against the face and thereby prevents leakage. In one form the bladder 14 is fitted at the back of a flying helmet 19 and has a cover 15 of inextensible fabric connected by straps 21 to plates 22, which are joined by adjustable connections 19 to the mask 10. The interior of the bladder communicates with the oxygen supply pipe 17 through a flexible pipe 16. The plates 22 are attached to the helmet by one of several press studs 23 but when they are disconnected from these the mask can be readily swung clear of the face. In another form, the bladder is built into the back of a helmet and, if desired, the adjustable connection to the mask may be replaced by a light chain with a toggle connection on the mask for rapid removal.
Patent GB-169037-A (GB)
Title: Improvements relating to furnace fronts for water tube steam boilers
IPC: F23M7/00
Filed: 1920-07-02
Abstract: 169,037. Baillie, R., (Reid, J.). July 2, 1920. Liquid-fuel furnaces; furnace ports.-A furnace front for water-tube boilers adapted for coal or oil firing and having the usual front plate a, Figs. 2 and 4, and back-plate b provided with projections which meet to form the ash-pit flare c and air casing d is provided below the level of the sill e, which may be removable or adapted to be tilted on the pivot f, as shown in Fig. 4, with lateral valves k, Fig. 3, for controlling the distribution of air to the ash-pit and air casing surrounding the firing opening. For coal firing, the sill e is held in its horizontal position by the lower part of the removable casing g forming the firing-opening. Air passes through openings l in the air casing to air supply baffle-boxes m. Fig. 4 shows the fire-door replaced by a plate p carrying a burner, the casing g and baffle-boxes m being removed and a plate q carrying a burner opening, being bolted to the plate a.
Patent GB-318231-A (GB)
Title: Improvements relating to regenerative braking
IPC: B66B1/08
Filed: 1928-12-05
Abstract: 318,231. Marion Steam Shovel Co., (Assignees of Jacobs, H. S.). Aug. 31, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Divided on 318,216. Drawings to Specification. Exciting. - The subject-matter described is identical with that described in Specification 318,216, claims being made for a regenerative braking arrangement in which the separatelyexcited field of the generator discharges quickly through a resistance and the motor field discharges more slowly through an exciter, for the purpose of producing an approximately constant braking effect.
Patent GB-255873-A (GB)
Title: Improvements in rotary piston machines
IPC: F04C2/348
Filed: 1926-07-21
Abstract: 255,873. Sturm, E. July 22, 1925, [Convention date]. Fixed-abutment type; balancing moving parts; regulating motors and pumps.-In a, rotary pump or motor wherein a rotor drum 2 carries outwardly-sliding vanes 8, the casing 3 is mounted so as to be freely rotatable. Ducts 9 in the drum 2 register in turn with inlet and outlet passages 12, 13 formed in a hollow central member 10 having a partition 11. The inner ends of the vanes are periodically exposed to the suction and delivery pressures to balance end-thrust by means of ducts 16, 16<1> in the member 10 leading to grooves 14, 14<1> separated by abutments 15, 15', the spaces 7 behind the vanes communicating with the grooves 14, 14' by ducts 17. In a modification for use in both directions of rotation pressure-operated valves are provided in ducts in the member 10 so that pressure fluid for balancing is supplied behind the vanes for both forward and reverse working. The capacity and the direction of delivery of the pump may be regulated by displacing the bearings of the rotary casing with respect to those of the drum. Reference has been directed by the Comptroller to Specifications 16252/99 and 24512/08.
Patent GB-1407563-A (GB)
Title: Carrier bag
IPC: A45C3/00
Filed: 1973-04-16
Abstract: 1407563 Plastics carrier bag R H SANDVIK AS 16 April 1973 18249/73 Heading A4G A plastics shopping bag is manufactured from a single plastics film bag blank by folding the blank to form a front panel 10, a back panel 12, a covering flap 13, and a closing flap 11, the panels 10 and 12 being secured together along lines 15a, 16a and the covering flap 13 being secured to the panel 12 on the same side as the panel 10 along lines 15b, 16b which are aligned with the lines 15a, 16a respectively, to form a pocket 19 to receive the flap 11. The panel 12 and flaps 13 and 11 have apertures 21, which when the flap 11 is inserted in the pocket 19 to close the bag are aligned to form a hand hold. The flap 13 may be folded double to comprise sections 13a, 13b and the flap 11, Fig.3, may have its edge cut to form tongues 11b either above or below the flap 13 and welded thereto by welds which form parts of a single continuous weld along lines 15a, 15b.
Patent GB-356814-A (GB)
Title: Surgical stocking
IPC: A61F13/08
Filed: 1930-06-14
Abstract: 356,814. Surgical stockings. FREI, E., 31, Bl³mlisalpstrasse, Zurich, Switzerland.-(Assignee of Frei & Kasser; 83, Bahnhofstrasse, Zurich, Switzerland.) June 14, 1930, No. 18283. Convention date, June 14, 1929. [Class 81 (ii).] A knitted rubberless surgical stocking, in which a reinforced ankle part 2 is attached to a foot part 3 and a calf part 1, is formed with a separate heel piece 5 knitted with diminishing and then increasing numbers of stitches in the rows so as to be of the shape shown in Fig. 2, whereby openings 6 are left in the finished stocking. The heel piece is attached by sewing along the lines B, C. Alternatively the heel piece may be knitted from the line C<1> and the end B only be sewn.
Patent GB-961935-A (GB)
Title: Improvements in electroluminescent materials
Inventor: RANBY PETER WHITTEN
IPC: H05B33/14
Filed: 1960-05-24
Abstract: An electroluminescent material consists of a red luminescing zinc cadmium sulphide in which the atomic ratio of Zn to Cd is from 1: 1 to 1: 6, preferably 1: 1.5 to 1: 4, and the material contains Cu in an amount of from 0.005 to 2% of the weight of zinc cadmium sulphide. The material is prepared by heating to a temperature of at least 800 DEG  C. in a non-oxidizing atmosphere a mixture of ZnS, CdS and a copper compound.  In one example, MgCl2.6H2O is mixed with the starting materials and the mixture fired twice with re-crystallized sulphur at 1100 DEG  C. in a covered silica crucible and then washed with acetic acid and distilled water and dried.  In a second example photo-conducting Cu-activated CdS prepared as described in Specification 875,259, in which a mixture of precipitated CdS and a copper compound is heated with a halide flux and a lithium compound, is fired with ZnS and recrystallized sulphur in a covered silica crucible at 1100 DEG  C. and washed and dried as above.
Patent GB-1434192-A (GB)
Title: Electric motors
IPC: G11B19/20
Filed: 1972-04-20
Abstract: 1434192 Electric motors; control of electric motors METTOY CO Ltd 19 April 1973 [20 April 1972 4 Oct 1972] 18389/72 and 45684/72 Headings H2A and H2J An electric motor includes a permanent magnet rotor and a starter including a winding energized in dependence on rotor position, the rotor comprising an annulus formed of magnetic material embedded in plastics material and magnetized to provide a plurality of poles of alternate polarity. The motor shown includes a rotor 11 forming the turntable of a gramophone and carrying the radially magnetized annulus 24, and a stator winding 25 associated with two polepieces 23 extending partly round the rotor periphery and having interdigitated poles co-operating with the rotor poles. Rotor position is sensed by a reed switch 28 associated with a biasing magnet 30. The magnet 30 may also serve as a detent holding the rotor (when the motor is de-energized) in a predetermined position which ensures rotor movement in a desired direction when the motor is re-energized. The motor is operated on pulsed D.C. and ineludes circuitry to ensure that the rotor accelerates from rest to a predetermined speed and continues at that speed even if the load changes. The circuitry includes drive transistors Tr8 and Tr9 controlled by a bi-stable circuit ineluding transistors Tr4, Tr5 and Tr7. The bi-stable is changed over when the latter of a transistor Tr3 and the reed switch 28 changes state. Transistor Tr3 provides reference speed pulses and is controlled by a long-tailed pair Tr1, Tr2 supplied from a bridge network including variable resistors Rx and Ry for adjusting the motor speed. In a modification, Fig. 9 (not shown), the winding is centretapped and is supplied from an oscillator including two transistors (Tr10, Tr11). Rotor position may be sensed by a reed switch or by a coil (L10).
Patent GB-676768-A (GB)
Title: Paper medium for magnetic recording and reproducing
IPC: G11B5/84
Filed: 1948-07-08
Abstract: 676,768. Magnetic recording. BRUSH DEVELOPMENT CO. July 8, 1948 [July 21, 1947], No. 18399/48. Drawings to Specification. Class 38 (ii). [Also in Group VIII] Paper for transducing records by magnetic flux interlinkage has powdered magnetite, γ-ferric oxide, or oxides of cobalt or of ferromagnetic metals of particle size one micron or less incorporated therein so that the paper is incompletely penetrated by the magnetic powder and has a concentration of 8 to 25 per cent by volume near at least one surface. The paper is glazed or calendered &c. and may be used as a tape between magnetic polepieces. Specifications 647,962 and 676,761, [both in Group XXXVIII], are referred to.
Patent GB-375551-A (GB)
Title: Method for the utilisation of residual heat in industrial thermal apparatus or systems having recuperators or regenerators
IPC: F22B1/18
Filed: 1931-06-26
Abstract: 375,551. Furnace regenerators ; utilizing waste heat. CHAUDRONNERIES A. F. SMULDERS, Grace-Berleur, Belgium. June 26, 1931, No. 185.05. Convention date, Dec. 10, 1930. Addition to 369,996. [Classes 51 (i) and 51 (ii).] In the method of utilizing in steam boilers the residual heat of the products of combustion of regenerative furnaces according to the parent Specication, the temperature of the products of combustion leaving a furnace is raised by delivering into its regenerators 2 air heated by the waste gases escaping from the regenerators 3 of another furnace and which have already given up part of their heat in a boiler 4. The burnt gases from the regenerators 2 pass through an air heater 2a to the chimney 2b, the heated air being supplied to the regenerators 3 in which the hot gases are thus cooled to a less extent enabling them to be utilized in a superheater 42 and boiler 41 from which they pass through an air heater 3a to the chimney 3b, the heated air from the heater 3a being supplied to the regenerators 2. More than two regenerative furnaces may be used, the burnt gases from the last furnace passing to the boiler and then through a heater for the air supplied to the first furnace.
Patent GB-277593-A (GB)
Title: Improvements in or relating to sweat-bands for hats
IPC: A42C5/02
Filed: 1927-07-12
Abstract: 277,593. Walters, 0. B. July 12, 1927. Sweat bands.-A multiple woven band is inserted between the usual sweat band 4 of a hat and the crown 1, the insertion comprising an outer part 6, fully impregnated or coated to render it impervious, an inner part 8, so impregnated or coated only to within some distance from its top edge, and a central part 5, which is absorbent. The parts are united at the bottom to form a roll or tube in which is a wire 11.
Patent GB-187006-A (GB)
Title: Improvements in or relating to electric controllers for alternating current electricmotors
IPC: H02P1/26
Filed: 1921-07-09
Abstract: 187,006. Steven, J. A. July 9, 1921. Automatic motor starters.-In starters for alternating-current motors, resistance is cut out by the fall of a weight 2 retarded by a dash pot or the like 5 and a solenoid core 9 having a oneway mechanical connection with the resistance member acts in opposition to the weight so as to reinsert resistance when the solenoid is de-energized. In the construction shown, rollers 11 attached to the bottom of the core bear upon a swinging guide 13 connected through a link 16 and a lever 8 with a shaft 6 adapted to operate contact fingers 3. When the solenoid is energized the core is lifted clear of the swinging guide. A spring may replace the falling weight. The invention is designed for use with hoists controlled by remote push-buttons.
Patent GB-625091-A (GB)
Title: Improvements in or relating to automatic fluid-operated valves
IPC: F04B39/12
Filed: 1945-07-20
Abstract: 625,091. Preventing oscillations in valves. SULZER FRERES SOC. ANON. July 20, 1945, No. 18634. Convention date, Aug. 3, 1944. [Class 135] [Also in Group XXVIII] Apparatus such as piston-type engines or pumps having a fluid-actuated valve is provided with a system capable of oscillation and so dimensioned and arranged that it dominates all other influences of the fluid tending to make the valve vibrate. In a scavenging pump 1, 2, Fig. 1, the dominating oscillating system is provided by resonance tubes 17<SP>1</SP>, 17, mounted at the suction and delivery ports 5, 6, controlled by spring-loaded disc valves 7, 8 respectively, the length from the free ends of the tubes to the valves being approximately 0.1 of the wavelength in the fluid corresponding to the natural frequency of oscillation of the valves. In general, the length is at least 0.03 and at most 0.2 of the wavelength, and the cross-sections of the tubes are the same or nearly the same as those of the port openings. In a modification, the passage from a scavenging air container to a valve controlling a passage leading to scavenging and extra-charging ports of an internalcombustion engine is used as the dominating oscillating system. In another modification, part of the piping beyond the valve may be so used. Specification 555,944, [Group XXVIII], is referred to.