baber/WOPTO huggingface dataset:
Patent GB-1453818-A (GB)
Title: Dual-belt cooling apparatus
IPC: F25D25/04
Filed: 1975-05-16
Abstract: 1453818 Cooling apparatus SANDCO Ltd 16 May 1975 [5 June 1974] 20833/75 Headings F4H and F4U Apparatus for cooling material, e.g. a highly viscous liquid such as hot-melt adhesive or liquid resin, comprises two superposed endless belts 7, 8 and an arrangement for cooling the inner sides of the facing belt portions and of the upper run of the upper belt 8, the material being fed on to the upper surface of the upper belt through outlets 13 of containers 12. As shown, spray nozzles 14, 15 are supplied by a common pipe system 16 with brine, water or other coolant and nozzles 19 are supplied through a pipe 20. In operation, material supplied to the upper surface of the upper run of the belt 8 is cooled by the spray nozzles 14, adheres to the belt and passes between the belt runs 7a, 8a where it is further cooled by the nozzles 15, 19, only the upper belt 8 being driven, and the spacing between the belt runs 7a, 8a being adjustable.
Patent GB-254547-A (GB)
Title: Improvements in reciprocating flat bed cylinder printing presses for office and other use
IPC: B41L15/02
Filed: 1925-08-20
Abstract: 254,547. Hõssler, W., and Schirmeister, C. Aug. 20, 1925. Cylinder machines; impression surfaces.- In a flat-bed cylinder printing-machine, the impression cylinder D is carried by oscillating levers He and, when in printing position, rests on side rails Re on the forme S, which serve to retain the cylinder at the required height for printing, and also rotate it frictionally. The periphery of the cylinder has a continuous elastic covering or rubber and its length does not bear an integral relation to the length of the forme, so that different parts of the cylinder come into contact with the forme and wear is consequently more uniform.
Patent GB-878975-A (GB)
Title: Improvements in or relating to pressure responsive devices
IPC: F15B11/12
Filed: 1960-06-15
Abstract: 878,975. Digital - to - analogue converters. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 15, 1960 [June 25, 1959], No. 20968/60. Class 40 (1). A member 13 is selectively positioned at any one of positions 0-12 by means comprising a plurality of units 10a-10d each of which is slidable in a tube 16 and includes a ball 24 which is adapted to protrude a distance " X " from the end of the unit when pressure is supplied thereto, for example through a solenoid-actuated valve 35a-35d. The distances " X " for units 10a-10d may be in the ratios of 1 : 2 : 4 : 5 as shown. A biasing pressure is supplied through valve 38 to return the balls to the inside of the units when the pressure is removed by valves 35a- 35d. An additional unit 39 supplied with pressure through a valve 41 may be included in tube 16 to act as a shock absorber.
Patent GB-276971-A (GB)
Title: Improvements in and connected with the sound boxes of talking machines
IPC: G11B3/02
Filed: 1927-08-09
Abstract: 276,971. Miles, H. B. Sept. 2, 1926, [Convention date]. Sound-boxes, connecting to tone-arms.- Relates to devices for connecting a gramophone sound-box to the tone-arm by means of one or more springs, in such a manner that when a record is being played the sound-box is able to turn slightly about the axis of the tone-arm, under the action of the needle engaging the record groove. According to the invention, a spring, or as shown, two curved springs 9, is or are attached at one end to a sleeve 6, and at the other end to a housing 5 surrounding the sleeve. The part 5 is secured to the back plate of the sound-box 4, and the sleeve 6 is fixed to the end of the tone-arm 7 by means of set screw S.
Patent GB-532324-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B15/10
Filed: 1939-07-19
Abstract: 532,324. Refrigerating. HOOVER, Ltd. July 19, 1939, No. 21006. Convention date, July 20, 1938. [Class 29] Absorption systems. The evaporator E of a continuous-cycle inert gas system in which liquid is swept or dragged there-through by the forced circulation of inert gas as described in Specification 504,374, comprises a lower flat coil portion 27 immersed in brine or other liquid in a finned tank 56 extending substantially over the area of the top of the storage space of a cabinet, and an upper flat coil portion 26 adapted to support ice-making trays 54, Fig. 4, in an upper compartment separated from the storage space by a heat insulated partition 52. The inert gas is circulated by a fan F from the absorber A through the outer passage of the gas heat exchanger H and enters the upper evaporator coil by a conduit 23, and some of the gas is led by a conduit 32 to a gas-lift pipe 30 to supply liquefied refrigerant from the condenser C to a vessel 31 and thence to the evaporator by a conduit 37 formed with a dam 38. The flow through the evaporator may be obstructed by a fine spiral wire baffle inserted in the pipe. The control of fuel supply to the generator B is effected by thermostats 50, 51 sensitive to the temperatures in the lower and upper compartments respectively. The gas heat exchanger may be located in the insulation of the back of the cabinet and the evaporator is carried by a removable insulated panel 46, Fig. 4. The fins of the brine tank direct condensed moisture to a trough 58 and drain 59. To prevent loss of cold air when the main cabinet door 45 is opened for access to the upper compartment, a supplementary metal door 62 may be provided for the storage space. This door may be operated with the main door by manipulation of a latch 67 associated with the main door latch 66. A modified evaporator is described in which the liquefied refrigerant flows by gravity into the lower section to which the inert gas is supplied, the liquid being forced by the gas flow into the upper section. The Specification, as open to inspection under Sect. 91 comprises also the following:- In the arrangement shown in Fig. 7 (Cancelled) in which no fan is employed in the gas circuit, the inert gas enters the upper section and flows downwards, and condensate is supplied through upper and lower conduits 115, 116. A separate door 121 is provided for the ice-making compartment, and the condenser C is located in an inclined position at the top of a flue extending up the back of the cabinet. This subjectmatter does not appear in the Specification as accepted.
Patent GB-238387-A (GB)
Title: Improvements in or relating to bakers' ovens
IPC: A21B1/00
Filed: 1924-09-06
Abstract: 238,387. Collins, T. B. Sept. 6, 1924. Bakers' ovens.-A hinged or folding platform is fitted on to the front of a two-deck bakers' oven to facilitate access to the upper deck. As shown, the platform consists of a cranked counterweighted tubular steel frame c mounted by pivot pins e in bearing-blocks f bolted to the oven front g. The frame is preferably made in two parts hinged together at the pivot c<4>, and the outer part has supporting legs j, which are made of semi-tubular form, so that when the platform is folded into its inoperative position, as shown in Fig. 2, the legs will fit round the outer part of the frame. The platform proper consists of expanded metal d spot welded to the frame. The side plates of the oven front are made removable to facilitate fitting of the platform, and are formed with stops g' for the counterweights i.
Patent GB-531382-A (GB)
Title: Improvements in and relating to carrier wave transmission systems
IPC: H01Q5/00
Filed: 1939-07-20
Abstract: 531,382. Wireless transmitting apparatus. McLEAN, F. C. July 20, 1939, No. 21150. [Class 40 (v)] A transmitter T is connected over a switch 1, alternative feeders A, B, and a switch 16 to an aerial 18. Operation of the switch 1 causes corresponding movement of switch 16 by supplying, over the selected feeder, a D.C. or low frequency current from a source 2 to a reversible motor 10. Limit switches 8, 13 stop the motor in the limit positions of switch 16 and chokes L1, L2, L3 keep the H.F. currents from the control circuits. A coil 3, which operates contacts 4 in the event of a flashover, is shorted by a switch 5 whilst the motor is operating.
Patent GB-217097-A (GB)
Title: Improvements in or relating to adjustable spanners
IPC: B25B13/14
Filed: 1923-08-21
Abstract: 217,097. Faram, A. H. Aug. 21, 1923. Sliding-jaw wrenches of the kind comprising a solid head having one jaw formed integral therewith and a sliding jaw member guided in a slot in the head and actuated' to grip the work by a lever pivoted to the slotted head and provided with teeth engaging rack teeth on the sliding jaw member, are constructed with a slot on one side of the sliding jaw member to engage a corresponding ledge in the head and with a flat plane surface in the head, such construction facilitating production with a minimum number of simple milling operations ana providing ample wearing surfaces. The movable jaw member c slides in the slotted head a carrying the fixed jaw b and is actuated by the lever h pivoted' at k and having teeth g engaging the rack teeth f. One side of the movable jaw member c has a flat surface d and the other side has a bearing surface e<1> and a groove e engaging a ledge in the head.
Patent GB-1376972-A (GB)
Title: Frozen food substance from egg its production and apparatus  therefor
IPC: A23B5/04
Filed: 1972-05-08
Abstract: 1376972 Frozen foods CANADIAN PATENTS & DEVELOPMENT Ltd 8 May 1972 [11 May 1971] 21288/72 Heading A2D [Also in Division F4] A frozen food substance from egg comprises free-flowing, discrete pellets of said egg within the size range 3mm to 7mm. The substance may be prepared by causing egg to fall from at least one nozzle, in the form of discrete globules into contact with a liquified gas refrigerant at a temperature of below -150‹F so that said globules are frozen to form pellets which are then removed from the refrigerant, and the refrigerant is then permitted to evaporate therefrom, the pellets being stored in a frozen condition. The flow rate from the or each nozzle is from 1 to 5 lbs/hour. Suitable raw materials are egg yolk, egg white or homogenised blend of egg yolk and egg white. The material, when in the form of homogenized blend of egg yolk and egg white, may also include meat, onion, spices, salt, pepper, flour, sugar and shortenings. The method may be carried out in the apparatus of the accompanying Figure wherein egg is delivered via peristaltic pump 28 and inlet 22 to a liquified gas refrigerant 4 in thermally insulated container 1. The refrigerant is fed in by pipe means 2. The discrete globules 8 are frozen to pellets 12 and then removed from the refrigerant by screw conveyor 40, which passes the pellets to a collection tray 46. Suitable gas refrigerants are nitrogen, helium, hydrogen or a fluorinated hydrocarbon.
Patent GB-597704-A (GB)
Title: Improvements in cellulose derivative materials
IPC: C08K5/10
Filed: 1945-08-21
Abstract: The deleterious action of ultra-violet light upon cellulose esters or ethers particularly in the form of filaments, fibres, foils and films is reduced by incorporating not more than 15 per cent, based on the weight of the ester or ether, of an ester of an aromatic hydroxy carboxylic acid with a phenol, an alcohol containing an aromatic nucleus, or a cycloaliphatic alcohol, said ester containing in its molecule the residues of two or more molecules of aromatic hydroxy carboxylic acid.  The ester may be incorporated in the cellulose derivative composition, or in the formed filaments, films &c. by impregnating them with a solution of the said ester in a volatile liquid which is a softening agent for the cellulose derivative, and then removing the volatile liquid by evaporation.  Suitable esters are salicoyl-salicylic acid phenyl ester, resorcinol disalicylate, hydroquinone disalicylate, b -naphthohydroquinone disalicylate, resorcinol di-p-cresotinate, and hydroquinone di-p-cresotinate. Plasticizers may be present.  In an example a film of from 0.001 to 0.003 inch in thickness is prepared from a dope consisting of resorcinol disalicylate, 0.759, cellulose acetate 15.0 g. diacetone alcohol 10.0 ccs. and acetone 90 ccs.  The film so produced loses very little tensile strength when exposed to ultra violet light under conditions which reduce by 90 per cent the tensile strength of a film prepared in a similar manner without the resorcinol disalicylate. There is also no discoloration, and no brittleness on bending.
Patent GB-224320-A (GB)
Title: Improvements in apparatus for grinding and/or polishing glass
IPC: B24B7/24
Filed: 1923-08-23
Abstract: 224,320. Pilkington Bros., Ltd., and Waldron, F. B. Aug. 23, 1923. Disc apparatus.- In continuous glass grinding and polishing apparatus, having a series of glass supporting tables moving beneath the grinding &c. tools, means are provided for transporting the tables from the finishing end to the starting end of the apparatus a table being lowered on to a runway beneath the apparatus, moved thereon to the starting end and then raised and pushed to contact with a table already in place on the apparatus. The tables 3, 4 are supported on, and travel along a frame 1, 2, the table 3 being at the starting end and the table 4 at the finishing end. Platforms 7 are provided at both ends of the apparatus, the platform at the finishing end being adapted to lower a table 6 thereon to rest on a runway comprising wheels 13, 13<1>, 13<11> by which it is moved beneath the frame 1 to the platform at the starting end and there lifted. The platforms are carried by supports 8 slidable vertically on guides 9, are lifted by weights 21, and are lowered by the contact of blocks 19 with stops 20 on connecting rods pivoted to the tables. The blocks 19 are carried by crank pins 17 on wheels 18 and when a platform has been raised to the level of the frame, as determined by stops 24, 25, slide in the connecting rods until on another downward stroke they re-engage stops 20 on the rods; a similar lost-motion effect is obtained with a platform in its lowered postion. The tables at the finishing end are pushed on to the platform by pushers 26 mounted on a shaft 28 which is rocked by a lever 29 and a connecting-rod 31 moved by a crank pin 32, and the tables are pushed on to the frame at the starting end by pushers 39 operated by a connecting rod 44 moved by a crank 45, a spring 36 being provided on the connecting rod to maintain pressure on the table whilst the crank passes its d'ead centre. The wheels 18, the wheels 13, 13<1>, 13<11> and the crank-pins 32, 45 are driven through gearing from a main shaft 48, from which also the tabledriving pinion shaft 74 is driven. A shaft 88 carrying a pinion engaging the starting table also is provided, and is driven from the shaft 74 through a spring device 91 in order that a new table may be engaged and driven immediately it is on the frame. The operation of the apparatus may be intermittent, and controlled bv switches or valves operated by the travel of the last table or by a cam gear.
Patent GB-1147967-A (GB)
Title: Improvements in the treatment of ammonium nitrate
Inventor: ENOKSSON BERTIL PETRUS
IPC: C01C1/18
Filed: 1967-05-09
Abstract: 1,147,967. Treatment of ammonium nitrate. NITRO NOBEL A.B. 9 May, 1967, No. 21491/67. Heading C1A. Ammonium nitrate is treated by a method which comprises adding a mixture of an alkylamine and an aliphatic acid each having at least 6 carbon atoms in order to reduce the tendency to cake and to obtain water repellant properties, wherein the mixture contains 2 to 10 moles of alkylamine per mole of aliphatic acid. The alkylamine and the aliphatic acid preferably contain from 12 to 20 carbon atoms in the molecule and are said to form a salt. Amounts of from 85 to 50 parts by weight of alkylamine and from 15 to 50 parts by weight of fatty acid may be used. The acid may be lauric, stearic, or palmitic acid, and the amine may be stearylamine, octadecylamine, or stearylpropylenediamine.
Patent GB-166819-A (GB)
Title: A machine for ornamenting glass articles, such as tumblers and the like
IPC: B24B19/03
Filed: 1920-07-17
Abstract: 166,819. Page, S. E., (Greer, J. B.). July 17, 1920. No Patent granted (Sealing fee not paid). Disc apparatus.-A machine for ornamenting glass-ware by grinding has a series of mechanisms which give an intermittent step-by-step rotation to a tumbler &c., while grinding-wheels are automatically moved towards and cut the glass when it is held at rest. Fig. 3 is a rear view of the machine, Fig. 4 is a side elevation with one of the sides removed and Figs. 7, and 9 show details of the feeler and slide mechanism. The chuck, which comprises two sets of spring-adjusted radial fingers 47, 48, Fige. 3, 4 and 11, each surrounded by rubber bands, is mounted to rotate on an inclined hollow shaft 18. For placing a tumbler in position on the chuck, the fingers 47, 48 are first retracted by pressure on a knob 44 of a slidable bar 41 within the shaft 18 this bar carrying conical members 52, 59 normally holding the radial fingers extended by the action of springs 43, 57. The shaft 18 is given a step-by-step motion from a cam C through a rocking-shaft lever 23, a slide and pawl 20. and a ratchet-wheel 19, the cam-shaft 16 being driven through worm gearing by the main belt-driven shaft 6. The grinding-wheels A, B, on belt-driven shafts 61 mounted in sliding blocks 63, 64, are moved towards and away from the glass by a cam-groove in the cam-wheel C, which, through links 81 and friction devices 79, imparts a rocking motion to side shafts 70. This motion is transmitted to slide the grinding-wheel shafts towards the glass by links 72, 73, Figs. 3 and 9. and auxiliary shafts 75 slidably mounted in sliding blocks 63, 64. Sliding blocks 83, Figs. 7 and 8, are mounted in adjacent slides and are provided with a feeler 84 to limit the advance of the grinding-wheels, the feelers being moved by rocking the shafts 75 far enough to allow them to touch the glass. A restraining-screw 88 on each block 63, 64 is then set to engage a projection 86 on the feeler slide 83 to prevent the grinding-wheel from cutting the glass too deeply. The feeler slide 83 is temporarily locked when the chuck is at rest by a cam-operated locking-device. To limit the amount of withdrawal of each grinding-wheel, a stop-wedge-piece 107 is applied to an extension 96 of the arm 72, but the cam movement is able to continue on account of the friction drive. To cut a number of ornamental circular bands on the glass, the chuck shaft is automatically slid axially by a, spring-pressed bell-crank lever 28. A stepped bar 32 holds the chuck shaft in position against the spring-pressed lever 28 by bearing against a flanged wheel 34 fixed on the shaft. After each revolution, the cam 40 on the wheel 34 presses the stepped bar 32 upwards against a spring 34a and allows the spring-pressed lever 28 to move the whole chuck shaft axially a distance of one step until the wheel 28 engages the next step of the bar 32. On completion of the last cut, a trip-finger on the chuck shaft operates a lever, which moves the starting-lever 12 to disengage the clutch 14 on the main shaft 6.
Patent GB-729055-A (GB)
Title: Improvements in or relating to electrical apparatus for effecting frequency compression of speech or other intelligence
Inventor: PETHERICK ANTHONY CORNWALLIS
IPC: H04B1/66
Filed: 1952-08-27
Abstract: 729,055. Transmission systems. GENERAL ELECTRIC CO., Ltd.. Aug. 26, 1953 [Aug. 27, 1952], No. 21590/52. Class 40 ( 4). The original speech or other intelligence signal is translated to a relatively higher frequency band and is then sampled, the time scale of the samples being expanded so as to produce a frequency-compressed signal. As shown, a speech signal in the frequency range 300-3000 c/s. passes through an amplifier 2 to a mixer 3 where it modulates a 1 Mc/s. oscillation. A band-pass filter 5 selects the upper sideband which then amplitude-modulates the beam of a cathode-ray tube 6. This beam is arranged to produce a circular trace on a luminescent screen 7 at a frequency of 3.33 kc/s. and this trace is scanned by the beam of an iconoscope 8 at a frequency of 330 c/s., the effect being to sample the output signal from the filter 5 at a frequency of 3 kc/s., and to expand the time scale of the samples to ten times its original value so that the output signal of the iconoscope 8 lies in the frequency range 100.03-100.30 kc/s. This signal is passed through an amplifier 11 and a band-pass filter 12 and is then either transmitted as it is or demodulated by means of a mixer 14 and a filter 16 to produce an output signal in the frequency range 30-300 c/s. In modifications, the cathode-ray tube 6 may be of the storage tube type, and it may share a common screen with the iconoscope 8.
Patent GB-755845-A (GB)
Title: Improvements relating to semi-conductors
Inventor: BILLIG ERNEST
IPC: C30B15/20
Filed: 1953-08-05
Abstract: A PN junction is produced by growing a crystal ingot from a seed in a melt of semiconductor material such as germanium of one conductivity type, removing the ingot and inserting it in a melt of the opposite conductivity type where the ingot is partly melted back before growth is continued.  The arrangement provides a single crystal.  The crystal is grown in an inert or reducing atmosphere and preferably rotated in the melt.  The ingot may be replaced in a melt of the first conductivity type to form an NPN or PNP body A series of crucibles containing melts of opposite conductivity types may be arranged in a circle, the crystals being suspended from a rotatable frame, so that a plurality of bodies comprising PN junctions may be produced simultaneously. Imperfections may be removed from the grown crystals by subsequent annealing.
Patent GB-698989-A (GB)
Title: Improvements in or relating to piezo-electric crystal pick-ups
IPC: H04R1/16
Filed: 1951-09-17
Abstract: 698,989. Gramophone pick-ups. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Sept. 17, 1951 [Sept 16, 1950]. No. 21731/51. Class 40 (iv). In a piezo-electric pick-up, a bender or twister crystal unit has a fixed axis of bending about a pair of resilient strips of material which engage opposite sides-of the crystal. As shown in Fig. 1, the resilient strips constitute the vertical arms 8 of a pair of rubber T-shaped members 9 which clamp a rectangular twister unit 3 between similar halves of a casing 1. The base of the crystal is coupled to a stylus 7 by a U-shaped holder 4 which is provided with a rubber-sheathed pivot 5 seated in corresponding recesses in the two casing halves. A viscous damping material 12 such as silicone resin is applied to the upper corners of the crystal and to the holder (not shown). In an embodiment applied to a bender unit 14, Fig. 4, the crystal is clamped at its upper end between resilient strips 19, 20 while the axis of bending is fixed by resilient strips 21, 22. Viscous damping material 23 is applied to both crystal faces intermediate the pairs of strips and to a stylus holder 15. In a modification, Fig. 6, a shaft 27 having an extension arm 28 carrying a stylus 16 is rigidly fitted to and constitutes a pivot for the stylus holder. Specification 568,881 is referred to.