baber/WOPTO huggingface dataset:
Patent GB-666363-A (GB)
Title: Indicating elongation gauge
IPC: G01B21/32
Filed: 1949-09-09
Abstract: 666,363. Rolling. ARMCO INTERNATIONAL CORPORATION. Sept. 9, 1949, No. 23431/49. Class 83 (iv). In apparatus for indicating and/or recording the amount of elongation of a strip of material during a rolling operation and having means responsive to the strip speed prior to passing, and after it has passed, through co-operating rolling members, a movable device, whose movement is dependent on the responsive means, measures the relative variation of such responses. A disc 23, driven by a Selsyn motor 9 electrically coupled to a Selsyn generator 8 driven by a guide roller 5 rotated by the strip material 3, and a disc 29, driven by a Selsyn motor 7 electrically coupled to a Selsyn generator 6 driven by a roller 4 rotated by the strip material 3, rotate a sphere 31 about an axis A-A when the entering and exit speeds of the strip 3 to and from the rolls 1 are equal. The sphere 31 is held in contact with the discs 23, 29, by a disc 35, journalled in a fork 34 of a lever freely rotatable about a pivot 33 arranged directly below the centre of sphere 31. Should the exit speed of strip 3 leaving rolls 1 increase, the speed of roller 5 will be increased, whereby the sphere 31 will be rotated about a new axis B-B, or C-C or D-D, and the disc 35, which takes up a position perpendicular to the axis of rotation of the sphere 31, will be moved and will indicate the amount of elongation of strip 3 passing through rolls 1. The percentage elongation is recorded on a paper strip 13, driven by Selsyn motor 11 electrically coupled to a Selsyn generator 10 rotated by roller 5, by a pen 39 attached to an arm 38 secured to the lever holding the disc 35, or in an alternative arrangement, Figs. 3-8 (not shown), visual indication of the percentage elongation may be shown on a dial by a pointer gear-driven from a toothed segment attached to the lever. Provision is made to indicate the elongation and hence the reduction of strip thickness on either side of a zero line, should the rollers 1 be operable in either direction.
Patent GB-831235-A (GB)
Title: Improvements in fluid filters
IPC: B01D29/11
Filed: 1957-07-25
Abstract: 831,235. Filters. MULLER, J. July 25, 1957 [Oct. 6, 1956], No. 23587/57. Class 46. [Also in Group XXVIII] Unfiltered liquid is pumped into a vessel 49, Fig. 5, at 59 and passes inwardly through filter candles 7, each preferably comprising a pile of rings each having corrugations or grooves on its two faces. Each candle is located between two radial walls 60, Fig. 6. The temperature in the vessel 49 is stabilised by electric heating elements 48 having fins (not shown) and controlled by a thermostat 50, Fig. 6, communicating with tubular bellows 52 engaging a switch 55. The filtered liquid collects in a chamber 39 and is discharged at 56. When cleaning is necessary the operator unscrews a knob 47, Fig. 6, from a threaded projection 42, whereupon a spring 45 normally under compression forces a piston 44 along a pump body 36, thereby causing filtrate to be drawn into the pump from chamber 39 through an orifice 46. The knob is now pushed inwards again, whereupon the filtrate is discharged from the pump, causing backflushing of the candles, the expelled liquid and impurities passing back through duct 57, through a pressure relief valve (not shown) screwed in the opening 57a, and into a container (not shown). In a modification for automatic cleaning, the spring 45 is located between the piston 44 and the other end of the pump body 36, Fig. 10 (not shown), and filtered liquid is forced into the same end of the pump as before when unfiltered liquid delivered by the feed pump (not shown) on its compression stroke raises a spring-loaded valve 70, Fig. 9, now arranged in front of an aperture 68 communicating with the inlet duct 59, and enters the vessel 49. During the following suction stroke of the feed pump the valve 70 closes and the spring 45 restores the piston, filtered liquid being thereby forced back through the candles. Expelled liquid and impurities pass back along the ducts 59 and 67 and past a spring-loaded valve 73 to a container (not shown). Thus a backwash flow occurs with every complete cycle of the feedpump. In Fig. 1 (not shown), the pump is handoperated and closely resembles that of Fig. 6, but it is arranged vertically in the vessel 49 and communicates by a pipe with the chamber 39. The walls 60 and the thermostat are dispensed with.
Patent GB-1382038-A (GB)
Title: Invalid walking aid
IPC: A61H3/00
Filed: 1973-05-18
Abstract: 1382038 Invalid walking aid ROYALTY DESIGNS CORP 18 May 1973 [26 July 1972] 23737/73 Heading A6M [Also in Division F2] An invalid walking aid comprises frame means 10, two pairs of legs constituted by a front legs 14, 18 and a rear legs 16, 20 each of adjustable length, means coupling together the front leg and rear leg of each pair such that relative shortening of one leg simultaneously effects relative lengthening of the other and locking means disposed on the frame and actuable by the user to lock said front and rear legs of each pair at any desired length, release of the locking means enabling adjustment of the relative lengths of the front and rear lengths. In the embodiment shown legs 14, 16 and 18, 20 have pistons at their inner ends (Fig. 4, not shown) and telescopically slide within respective U-shaped frame members 22, 24. The latter are filled with hydraulic fluid, suitable seals being provided to prevent leakage and each has a valve 52, 54 to control or prevent movement of fluid in the members 22, 24. With the valves open, downward pressure on the front (or rear) of the frame causes the front (or rear) legs to shorten and the corresponding rear (or front) legs to lengthen by fluid passing from one side of the valve to the other. With the valve in its closed or locked position fluid cannot pass from one side to the other and the legs remain fixed in position. The device is of particular use in ascending or descending stairs.
Patent GB-377465-A (GB)
Title: Improvements in automatic controls for stitch regulating mechanisms of flat knittingmachines
IPC: D04B11/00
Filed: 1931-08-24
Abstract: 377,465. Straight-bar knitting- machines. PAGET, H. F., 4235, N. 7th Street, Philadelphia, U.S.A. Aug. 24, 1931, No. 23778. [Class 74 (ii).] Relates to flat machines for the manufacture of full-fashioned hosiery. The loose course &c. mechanism is brought into action automatically at times determined by a pattern chain which regulates the onward movement of a shaft 49 carrying edge ca:ns such as 47. Horizontal levers 40 running on the cams are thus enabled to shift handles 37 on the loose course &c. levers 31, so that sliding rollers 33 come into the track of cams 35 on the cam shaft 16. The stitchregulating shaft 26 is thus rocked to the required amounts when loose courses, welts, &c. are to be produced.
Patent GB-708960-A (GB)
Title: Improvements in instruments for measuring the relative humidity of a gaseous mixture
IPC: G01N25/56
Filed: 1951-10-12
Abstract: 708,960. Hygrometers. TESA SOC. ANON. Oct. 12, 1951 [Dec. 12, 1950], No. 23792/51, Class. 97(3) An instrument for measuring the relative humidity of a gas of the type equipped with a manometer having two legs, one leg being carried by and extending within a chamber having a porous wall and containing water vapour or a drying substance whilst the other leg is disposed outside the chamber, and comprising a movable chart provided with relative humidity curves from which the relative humidity can be read by noting the curve with which the liquid level in that leg of the manometer which is disposed outside the chamber intersects, is characterized in that the chart is carried by a transparent cylindrical element which pivots about its geometrical axis and in that a bi-metallic coil is attached at one end to the cylindrical element and at the other end to a fixed part of the instrument so that the cylindrical element pivots through an angle which varies with temperature. The hygrometer shown comprises a chamber 2 containing distilled water and comprising a cylindrical part 9, a porous part 10 and a lid 11, these parts being held together by a bolt 13, the head 12 of which forms the base of the chamber 2. One leg 6 of a manometer 3 extends into the chamber, the other leg 7 of the manometer being connected to leg 6 by an expansion chamber 5 and lying adjacent the inner wall of a transparent cylinder 20 bearing a chart of relative humidity curves 19. This cylinder is pivoted at 22 on a jewel set in an adjustable mount and a bimetallic coil 31 connected to the cylinder 20 and to a fixed part of this mount so that the angular displacement of the cylinder varies with temperature. The correct relative humidity of a gas which diffuses through the porous part 10 into chamber 2 is given by the intersection of the upper end of the liquid column in leg 7 of the manometer with one of the curves on the chart. The cylindrical element 20 is surrounded by a detachable metal sheet 36 provided with a window 39 through which the chart and the leg 7 can be observed and a window 40 through which the temperature on a scale 41 can be read. Chamber 2 may alternatively include a drying agent, Specification 612,716, is referred to.
Patent GB-238132-A (GB)
Abstract: 238,132. Loewy, J. Jan. 22, 1925. Two-stroke-cycle engines; cylinders, pumps, arrangement of ports in; crankchambers.-In a two-stroke. cycle engine using crankchamber compression, ports r, s at the ends of the transfer passages g, which contains the fuel nozzle i, are staggered, the ports r alone being in line with ports a in the piston. Filing-pieces mare prcvided to reduce the pump compression space.
Patent GB-936199-A (GB)
Title: Hair clips
IPC: A45D8/14
Filed: 1961-07-03
Abstract: 936,199. Hair clips. A. W. MACNAMARA. June 28, 1962 [July 3, 1961], No. 23885/61. Class 131. [Also in Group XXV] A hair clip comprises a U-shape member a, of resilient material, the free ends of the limbs a<SP>1</SP> having portions a<SP>3</SP> extending towards each other and formed with upturned, mutually inclined flanges a<SP>4</SP> which are engaged in a slot b<SP>1</SP> in a second member b to laterally stress the member a so that it assumes a bowed condition and can be snapped to a reversely bowed condition to open and close the clip. The members are cut from sheet metal, the member b having an end b<SP>2</SP> bent over the portions a<SP>3</SP> to retain them in position, a part b<SP>3</SP> bent to extend between the limbs a<SP>1</SP>, and a part b<SP>4</SP> which may be slotted at b<SP>5</SP> and is of such width and/or length that it cannot pass between the limbs a<SP>1</SP>.
Patent GB-1317094-A (GB)
Title: Circuit for enciphering device
IPC: H04L9/36
Filed: 1971-04-19
Abstract: 1317094 Digital transmission; ciphering systems ANSTALT EUROPAISCHE HANDELSGESELLSCHAFT 19 April 1971 [16 March 1970] 23888/71 Heading H4P In a ciphering system wherein input characters are mixed with key characters, the output of the key generator is examined for combination LLLLL whereby the generator is shifted to another combination; the ciphered output is further examined for combination OOOOO whereby the key character is caused to generate combination LLLLL hence the input character is fed directly to the output. In a ternary system the combination sought is OOO in each case. The position of contacts a1-e1 represent an input character which is modified by key character represented by contacts s11-s51. Series contacts s12-s52 reflect the positions of contacts s11-s51 and if combination LLLLL is represented a circuit to relay O is completed causing closure of contacts o1 hence the key generator moves one step forward or backward. The ciphered character is represented by energization of relays F-J temporarily self held by the contacts f1-j1 and n4 closed. Serial contacts f2-j2 detect combination OOOOO energizing relay K which opens contacts k2 causing contacts s11-s51 to assume the lower position (LLLLL) corresponding to clear text transmission.
Patent GB-789438-A (GB)
Title: Improvements relating to automatic adjusting means for chain drives
IPC: F16H7/08
Filed: 1956-08-02
Abstract: 789,438. Chain gearing. MOTO GUZZI SOC. PER AZIONI. Aug. 2, 1956 [May 24, 1956], No. 23889/56. Class 80 (1). The tension in a chain 5 connecting, for example, the crankshaft and camshaft of an internal combustion engine is maintained substantially constant in spite of temperature variations by a leaf spring 4 which bears against the chain and has its upper end acted upon by a rod 1 whose thermal expansion differs from that of the engine parts between the sprocket axes. The rod 1 acts upon the leaf spring 4 through a lever 2 pivoted at B and loaded by a compression spring 3 whose lower abutment may be adjustable. The chain tension is determined by adjustment of nuts 6 anchoring the lower end of rod 1. When the distance between the sprocket axes increases due to a temperature rise, the length of rod 1 remains unchanged, or changes differently, so that the lever 2 is rocked to adjust the curve of the spring 4, the chain tension being thus maintained constant in spite of the reduced amount of slack. The differential expansion may be obtained by making the rod 1 of a material having a coefficient of expansion differnt from that of the engine parts, or by insulating the rod, or by disposing it outside the engine enclosure. The spring 3 is sufficiently strong to maintain the curve of the leaf spring 4 should the slack side of the chain become the driving side.
Patent GB-835763-A (GB)
Title: Improvements in or relating to a pressure gauge
Inventor: WEBER WILLIAM HUDSON
IPC: G01L21/00
Filed: 1956-08-02
Abstract: 835,763. Measuring low pressures. CONSOLIDATED ELECTRODYNAMICS CORPORATION. Aug. 2, 1956, No. 23904/56. Class 40 (1). The electrically heated filament of a Pirani or thermocouple gauge is darkened by oxidation before calibrating the instrument, and the supply circuit is such that the temperature of the filament does not exceed 400‹ C. As shown, a bridge comprises on adjacent arms a sealed gauge 10 and a similar gauge 1 connected to the source to be measured and is fed from a stabilized voltage source. Switching arrangements are provided for scale changing and for the alternative use of the measuring milliammeter 20 as a voltmeter.
Patent GB-644637-A (GB)
Title: Improvements in or relating to continuous wave radio navigational systems
Inventor: WILLIAMS CARADOC
IPC: G01S1/02
Filed: 1947-08-29
Abstract: 644,637. Radio-navigation. MINISTER OF SUPPLY. Aug. 29, 1947, No. 23935. [Class 40 (vii)] A radio-navigational aid comprises a main transmitting station, which may comprise one of the transmitters of a known path difference navigation system, in the field of which is provided a relatively low-powered beacon radiating a frequency differing from the field frequency by a low (audio) frequency at a power proportionate to the field of the main transmitter so that a receiver may indicate its proximity to the beacon by the modulation depth of the received signal. The aid is stated to be of particular value in connection with continuous wave path difference navigation systems at considerable distances from the main stations where the bearing accuracy is good even though the position-fixing accuracy is low, and to overcome lane identification difficulties when entering the coverage area of such a system. In operation the beacon may radiate a frequency differing by #f from the frequency of one of the main transmitters creating circular lines of equal modulation depth round the beacon. Assuming the field strength e 1  of the main transmitter field to be constant the strength of the beacon signal e 2  will change inversely as the distance to the beacon, as will the depth of modulation of #f on the received signal. Instead of measuring modulation depth to determine the distance to the beacon it may be preferred to measure the phase modulation, the maximum deviation (# max.) being sin<SP>-1</SP> e 2 /e 1 . The secondary beacon, if sufficiently close to the main transmitter for the field strength of the latter not to vary in its locality, may be of fixed low power, otherwise its power output is controlled by a receiver determining the strength of the main field. Because the close proximity of the transmitted frequency to this received frequency causes difficulty in the receiver it is preferred to key the beacon signals and make the field strength determinations only when the beacon is keyed off. The keying or the value of #f may be used to identify the particular secondary beacon. At the receiver, signals from the main aerial MA are passed to the receiver DR which may feed the integrating indicator TI of the navigation system and also demodulator D for the signal having the secondary beacon modulation. The modulation depth of this signal is determined at MM and indicated at DI, the scale being calibrated in terms of distance. A frequency-selective filter unit FM provides an indication on meter IM and/or lamps IL as to the identity of the beacon. To determine the bearing of the beacon from the receiver the loop aerial LA may be switched into action, the direction at which no modulation is indicated at DI being the beacon bearing. Loop LA may be operated automatically by a follow-up system. A high-pass filter and noise meter may be introduced to indicate the degree of precipitation static.
Patent GB-431239-A (GB)
Title: Improvements in and relating to apparatus for the registration of signals in telephone installations
IPC: H04M11/06
Filed: 1934-08-20
Abstract: 431,239. Damped resilient drives. ZOLLER, E., 48, Dorfstrasse, Z³rich, Switzerland. Aug. 20, 1934, No. 23966. Convention date, Aug. 21, 1933. [Class 80 (ii)] [See also Groups XXXIX and XL] In telegraphic receiving- apparatus of the typeprinting type, the typewheel 2 may be connected to its shaft 1 through a spiral spring 53, a frictional coupling being provided by a spring 48 pressing the type-wheel against the edge of the spring- drum 50, and the relative movement being limited by a stop 44 on the spring-drum cooperating with two stops 45 on the type-wheel.
Patent GB-967673-A (GB)
Title: Method of making connections to semiconductive bodies
Inventor: SHARPLESS WILLIAM MERLIN
IPC: H01L21/288
Filed: 1961-07-04
Abstract: <PICT:0967673/C6-C7/1> A contact is made to a gallium arsenide body by depositing a layer of tin and an overlying layer of some other metal on it and subsequently heating to alloy the tin to the body. The other metal may be nickel, copper, gold or silver. In an example a disc of gallium arsenide doped with sulphur, selenium, or tellurium, is first rough lapped, etched in a hydrofluoricnitric acid mix for a minute and washed successively in distilled water and alcohol. The disc 10 is then heated to 100-150  DEG C. in vacuum in chamber 21 to degas it and tin deposited on it to a thickness of 4000<\>rA by heating the tin-coated tungsten filament 15. Nickel is next deposited on the disc by immersion for 6 minutes in a nickel solution of specified composition maintained at 88-94  DEG C. After washing as before the disc is heated at 590-610  DEG C. for 5 minutes in vacuum to alloy the tin to the water.  As an alternative the tin layer is formed by sputtering or electroplating.
Patent GB-615844-A (GB)
Title: Improvements in or relating to mechanism for driving an oscillatory member
IPC: F16H21/40
Filed: 1946-08-14
Abstract: 615,844. Linkwork. THOMAS, A. Aug. 14, 1946, No. 24201. [Class 80 (iii)] In mechanism for driving an oscillating member, a rod 34 connected by a rocking arm 35 is pivoted at 33 to a strap 21 which is connected to a plate 22 by bolts 24, 25 passing through blocks 19, 20. The latter are slidable in radial slots 17, 18 in a crank disc 16 on a shaft 13 driven from a shaft 10 through gears 11, 12. An extension of bolt 24 is pivoted in a strap 27 of an eccentric member 28 rotatable on shaft 13 and driven through gears 29, 30, 32 at the same angular speed as, but in the opposite direction to the shaft 13. The resultant motion of the pin 33 is such that the oscillatory member is given a relatively constant velocity during its operation. The device may be used for driving the oscillatory member in Specification 600,983, [Group XIX], or may replace the crank disc driving mechanism of the paper feeding device of Specification 491,866. It may also be used to operate the restoring bar for the settable type and rack bars of a statistical mechanism of the kind described in Specification 522,512, [Group XIX].
Patent GB-193079-A (GB)
Title: Improvements in retorts for distilling carbonaceous material
IPC: C10B27/02
Filed: 1921-09-12
Abstract: 193,079. Lutz, H. E. Sept. 12, 1921. Retort furnaces.-A retort for the distillation of carbonaceous materials is heated by burners 36 arranged opposite the walls 15 of the pockets which abut the retort wall 8 so as to diffuse the heating, lengthen the path of heat conductivity and prevent local overheating. The hot gases escape at the initial stages through a pipe 2 but later take an indirect path through a conduit 3 so as to be detained around the retort whereby the maximum heating effect and freedom from local overheating is obtained.
Patent GB-794688-A (GB)
Title: Lubricating compositions
Filed: 1956-08-08
Abstract: A lubricating oil composition comprises a major proportion of a mixture of a mineral lubricating oil and an asphalt and a minor proportion of a mixture of an oil-soluble heavy metal salt, an oil-soluble polyhalohydrocarbon thiocarbonate, and an oil-soluble ester of an aliphatic monocarboxylic acid (at least C10) and a monohydric alcohol (at most C10).  The mineral oil can range from a light distillate fraction to a heavy lubricating oil and the asphalt may be air-blown or unblown.  Heavy metal salts mentioned are the lead and zinc salts of cyclic carboxylic acids, e.g. naphthenic and abietic acids, organic sulphonic acids, e.g. petroleum sulphonic acids, and higher fatty acids, e.g. oleic and stearic acids.  Lead naphthenate is preferred.  The polyhalohydrocarbon thiocarbonates have the formula HamRCY3.R1Han, wherein the preferred halogen Ha is chlorine or bromine, m and n are zero or integers, their sum being at least 2, Y is oxygen or sulphur at least one being sulphur and R and R1 are hydrocarbon radicals (of which the Ha's are substituents) containing a total of at least 12 carbon atoms and are preferably long chain (>C10) aliphatic radicals.  These compounds can be prepared by the reaction of polyhalohydrocarbons and alkali- or alkaline-earth metal organo thiocarbonates, several examples of each being given and the preparation of chloronaphtha methyl xanthate and chloronaphtha amyl trithiocarbonate being described.  Examples of the ester ingredient are methyl, propyl, butyl and octyl laurate, palmitate, stearate and oleate and mixtures thereof.  Optional ingredients mentioned are alkyl phenols, amines, e.g. phenyl naphthylamine, organic phosphates and phosphites, and alkali nitrites.  In an example, a composition consisting of 7 per cent lead naphthenate, 6 per cent chloronaphtha alkyl xanthates, 1 per cent butyl stearate and 86 per cent of a mixture of 40 per cent pale oil and 60 per cent asphalt is contrasted with 10 similar compositions in which one or two of the additives of the invention are replaced by substances chosen from the following: phosphosulphurized sperm oil, chlorinated paraffin wax, sulphurized lard oil, tricresyl phosphate, wool-grease alcohol, primary cocoamine, polyoxyethylene di-fatty acid, sodium borate, and treated clay. In further examples the lead naphthenate is replaced by lead rosinate and abietate and zinc abietate and naphthenate, the thiocarbonates are chloronaphtha amyl trithiocarbonate, chloronaphtha ethyl xanthate and chlorinated kerosene isopropyl xanthate, and the butyl stearate is replaced by butyl ricinoleate and octyl palmitate.