baber/WOPTO huggingface dataset:
Patent GB-1089109-A (GB)
Title: Signalling system for the interchange of supervisory signals between telephone exchanges
Inventor: CAVES KEITH
IPC: H04Q1/38
Filed: 1966-05-31
Abstract: 1,089,109. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. May 31, 1966, No. 24192/66. Heading H4K. Supervisory signalling over a 2-wire junction between exchanges consists of, in one direction, a positive pulse on the a wire or a negative pulse on the b wire or both, and, in the reverse direction, a negative pulse on the a wire or a positive pulse on the b wire or both. The signals concerned are, in the forward direction, seize, answer acknowledge and clear forward, and, in the backward direction, answer, clear back and release guard. The arrangement is particularly relevant to a fixed-pulse TDM system in which each subscriber is allocated a pulse position and an audio-link is used to transfer the pulse positions. Separate highways are provided for the two directions and also for supervision. Circuits are described for the transmission and reception of the supervisory signals.
Patent GB-598835-A (GB)
Title: Improvements in or relating to photographic washing devices
IPC: G03D3/02
Filed: 1945-09-20
Abstract: 598,835. Photographic washing apparatus. MASON & SONS, Ltd., E. N., and GOLDRING, E. A. H. Sept. 20, 1945, No. 24334. [Class 98 (ii)] A spray unit for a photographic washing tank 4 consists of a feed pipe 1 having a series of screw-threaded holes 5 along it, a similar series of holes 10 in the wall of the tank, and spray jets 2 each having a hollow spigot 6 which passes through a hole in the tank and screws into the corresponding threaded hole in the feed pipe.
Patent GB-754295-A (GB)
Title: Preparation of ª -chloro-ª -methyl aliphatic acids and acid chlorides
IPC: C07C51/093
Filed: 1954-08-20
Abstract: A method for the production of an a -chloro-a -methyl aliphatic acid or acid chloride of formula <FORM:0754295/IV(a)/1> where R is a straight chain alkyl radical having 1 to 6 carbon atoms, and X is chlorine or hydroxyl, comprises reacting a 1,1,1-trichloro-2-methyl-2-alkanol of formula <FORM:0754295/IV(a)/2> with sulphuric acid of 90 to 106 per cent concentration at a temperature between 10 DEG  and 75 DEG  C.  When preparing the acid chlorides 97 to 106 per cent sulphuric acid is used at a temperature of 10 DEG  to 30 DEG  C., with the alkanol containing 0.5 to 2 per cent water; when preparing the acids 90 to 97 per cent sulphuric acid is used at a temperature of 20 DEG  to 75 DEG  C., with the alkanol containing 2 to 5 per cent water, the reaction mixture being diluted with water or ice on completion.  The reaction may be carried out in an inert solvent such as petroleum distillates, benzene, toluene, chlorobenzene, carbon tetrachloride, and methylene chloride.  In examples, a -chloro-isobutyryl chloride and a  - chloro - isobutyric acid are obtained from 1,1,1-trichloro-2-methyl-2-propanol, and a -chloro-a -methyl n - butyryl chloride from 1,1,1 - trichloro - 2 - methyl - 2-butanol.  Acid chlorides and acids obtained from 1,1,1 - trichloro - 2 - methyl - 2 - pentanol, -hexanol, and -octanol, are also mentioned.  The 1,1,1 - trichloro - 2 - methyl - 2 - alkanols may be obtained by reacting a ketone of formula R-CO-CH3 with chloroform in the presence of a strong base such as potassium hydroxide.
Patent GB-338148-A (GB)
Title: Device for the hot stamping of bolts and rivets of large dimensions
IPC: B21K1/46
Filed: 1929-08-08
Abstract: 338,148. Kikot, P. T. Aug. 8, 1929. No Patent granted (Sealing fee not paid). Metal - heating furnaces. - In the manufacture of bolts and rivets a furnace for heating the blanks is provided with a row or rows of holes in its periphery and is rotated intermittently, the blanks being automatically pushed into the holes and removed therefrom after heating and then passed to matrices in the rotating carrier of the heading press. The furnace 5 is rotated stepwise by a wheel 18 and single tooth pinion 19 driven by bevel wheels 22, 23 from the shaft 21. Blanks 2 in a container 1 are pushed one at a time into the holes 4 in the furnace wall by a rod 3 operated by a cam 24 on the shaft 21, and are withdrawn after heating by tongs 6 linked to the rod 3 and then allowed to fall into a pipe leading to the heading press. Three rows of holes 4 are provided in the furnace, the rod 3 and tongs 6 being elevated automatically to the level of either row by a three step eccentric 29 engaging a roller 28 on the standard 27 supporting a table 26 on which the rod and tongs are mounted; two furnaces may be served by one table 26. The furnace is heated by oil burners 13 supplied with oil from a tank 8 by pipes 9 - - 12 and supplied with air by pipes 14 - - 17. Reference has been directed by the Comptroller to Specifications 9023/89; 4134/01, [Class 83, Metals, Cutting &c.] ; 11094/13 and 134,770.
Patent GB-1343860-A (GB)
Title: Apparatus and method for testing magnetic head elements
IPC: G11B5/31
Filed: 1972-05-24
Abstract: 1343860 Testing magnetic read/write heads INTERNATIONAL BUSINESS MACHINES CORP 24 May 1972 [4 June 1971] 24379/72 Heading G1N Magnetic read/write head assemblies batch fabricated on a substrate are tested for satis-  factory performance during manufacture before final separation into discrete multi-track magnetic heads by subjecting the heads to a magnetic field and monitoring the electric current picked up in the heads. In the arrangement of Fig. 7B the magnetic field is produced by conductive strip 702 deposited on substrate 210 adjacent the gaps of the magnetic heads which are in the form of a conductor 211 and a horseshoe of magnetic material 212 defining the gap. The currents induced in each wire 211 are sequentially compared at 220 with the output from nominal head output signal generator 216 which also supplies the current producing the magnetic field. If the electric current falls outside acceptable limits as indicated by go/no go indication 221 the respective head is rejected. The strip 702 may be omitted Figs.8A, 8B (not shown) in which case rows of heads are arranged parallel to each other on a substrate and the magnetic field is produced by applying a driving current to the heads in one row and sensing the electric current induced in the heads of the adjacent row. Various forms of magnetic heads and their manufacture are described Figs. 1 to 6 (not shown).
Patent GB-277687-A (GB)
Title: Improvements in or relating to automatic controlling devices for electric motors and the like
IPC: H01C10/02
Filed: 1927-09-16
Abstract: 277,687. Lagniez, R. Sept. 16, 1926, [Convention date]. Alternating-current induction machines.-A rotary device for automatically short-circuiting resistance in starting an electric motor consists of a sealed casing A hollowed out to form two or more annular grooves G', G<2> containing two or more half-turns of a continuous resistance wire B, and a quantity of mercury or other conducting liquid M free to be spnead out along the grooves by centrifugal force. The casing which is attached to the motor shaft x, may be made of toughened glass, and may be filled with inert gas at low pressure. Any number of casings may be employed. The device may be assembled in the rotor frame of the machine to be controlled.
Patent GB-746062-A (GB)
Title: Device and method for controlling the circulation of finely divided material in a system consisting of a riser and a downcomer
IPC: B01J8/00
Filed: 1953-09-04
Abstract: <PICT:0746062/III/1> In a system, e.g. as described in Specification 715,789 [Group XIII], in which finely divided material is entrained in a riser 4 by gas and the material then passes through a downcomer 7 in a fluidized state back to the riser, the circulation of material is controlled by adjustment of an auxiliary fluidizing gas flow to an auxiliary chamber 15 connected by narrow openings 5, 14 to the riser and downcomer.  Heat may be supplied to the finely divided material in the riser 4 and be withdrawn therefrom in the downcomer 7, or vice versa.  The material may be the catalyst mass in a cracking plant or it may be sand entrained and heated by gases from an oil or gas burner 1 and a combustion chamber 3.  In the example, through a pipe 11 passing through the downcomer 7 flows a medium to be heated by a settling dense bed 10 of the sand which is fluidized by gas from an inlet 12.  The pipe 11 may be replaced by several pipes and the riser 4 may also be located inside the downcomer 7.  Sand separated from the combustion gases in a cyclone 8 is fed back to the downcomer. Difference of temperature between thermostats at points 17, 18 controls the flow of auxiliary fluidizing gas in a line 16 to the chamber 15 in which the gas is directed, for cooling, towards the riser wall. Increase in this gas flow increases the circulation of sand and tends to equalize the temperature at points 17, 18.  In addition, the fuel feed 2 to the burner 1 may be controlled according to the condition of the medium in pipe 11.  U.S.A. Specification 2,412,152 is referred to.
Patent GB-405727-A (GB)
Title: Directional radio transmitting arrangements particularly for use with ultra-short waves
IPC: G01S1/02
Filed: 1932-09-02
Abstract: 405,727. Directive wireless signalling. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Sept. 2, 1932, No. 24496. Convention date, April 19. [Class 40 (v).] In a direction finding system in which two angularly displaced beams are radiated, the field strengths of which are to be compared, a dipole aerial E is continuously energized from a source S and dipole reflectors R1, R2 are alternately keyed either by making and breaking their circuits by relays M1, M2 energized successively by a motor-driven distributer K, or by detuning. The leads to the relays M1, M2 may be of resistance wire to prevent the passage of H.F. currents and the reflectors, one of which may be omitted, are preferably longer than the aerial. In one embodiment the letter A is transmitted in one direction and the letter N in the other. In a modification a characteristic modulation frequency is transmitted in each direction either by providing a further distributer arranged to modulate the transmitter at one or other of two frequencies depending on the keying of the reflectors, the two frequencies for example being obtained by a cam-controlled two-frequency machine.
Patent GB-1492019-A (GB)
Title: Noise suppressing assembly for track of crawler type vehicle
IPC: B62D55/096
Filed: 1976-06-14
Abstract: 1492019 Endless track vehicles CATERPILLAR TRACTOR CO 14 June 1976 [14 Oct 1975] 24529/76 Heading B7H Each shoe 14 of the track of an endless track vehicle is fitted with a noise suppressing device 18 comprising a resilient contacting element 38 which is formed by a stack of discs compressed between end plates 24, 26 mounted on a spindle 36 passing through openings 40 in the discs and is attached the shoe 14 by bolts 48 extending through the shoe and the element 38 into screw-threaded engagement with the spindle 36. Each disc is made of rubber stengthened by fibres or woven material and has a D-shaped profile providing a flat surface 67 which engages the shoe 14 and a curved surface for engaging between the teeth 20 of a track drive sprocket 16 or with the periphery of another track wheel.
Patent GB-379513-A (GB)
Title: Improvements in or relating to the regulation of the unwinding of strand materials from stationary spools
IPC: B65H59/06
Filed: 1931-09-01
Abstract: 379,513. Controlling and tensioning yarn during unwinding from stationary spools. BRUGGER & CO., TEXTILMASCHINENFABRIK, Horgen, Switzerland. Sept. 1, 1931, No. 24563. Convention date, Sept. 4, 1930. [Class 120 (ii).] An arrangement for regulating the unwinding of yarn from a stationary spool 14 comprises a dish-shaped deflecting member 15 which fits over the top of the spool and is provided with a curved lip terminating in a polished non- cutting guiding edge 16 with which the yarn only makes point contact. The member 15 may be turned from a solid piece of metal or drawn from sheet metal. The Specification as open to inspection under Sect. 91 (3) (a) comprises also tension regulating means for the yarn 8 unwinding from the spool 14, the yarn passing between yokes 4 on a member 3 secured to a support 1, and fingers 5 on a member 6 pivoted at 9 to the support 1. The ends of the fingers 5 have grooves 7 for guiding the yarn. Adjustably mounted on the member 6 by means of a stud 11 is a wire arm 12 carrying a roll 13 for guiding the yarn so that as the tension on the yarn increases the arm 12 is depressed and the member 6 moved so that fewer friction elements engage the yarn, and vice versa. A torsion spring mounted on the pivot 9 normally urges the member 6 into a position wherein all the friction elements engage with the yarn. It also comprises a device for use when unwinding cross wound supply bobbins comprising a smooth dished supporting disc on which the bobbin rests with its lower edges contacting with the disc. This subjectmatter does not appear in the Specification as accepted.
Patent GB-608864-A (GB)
Title: Improvements in apparatus for projecting thermal or visible or ultra-violet radiation
IPC: A61N5/08
Filed: 1945-09-21
Abstract: 608,864. Radiation treatment apparatus. ROTH, G. Sept. 21, 1945, No. 24569. [Class 81 (ii)] [Also in Groups XI and XX] In a radiator for thermal, visible or ultra-violet radiation three or more directionally radiating units, each comprising an elongated source with a reflector, are distributed round an axis, and control means can displace at least the reflectors so that the radiation converges to a region which can be moved axially with respect to the projector. The range of displacement can obtain divergence of the field of radiation. The upper and lower halves of Figs. 1 and 2 show such a radiator in different positions of adjustment. A tube 12 houses the reflector of a mercury-vapour discharge device 11 radiating ultra-violet rays. A cupped member 13B has a tubular part 13A of increased diameter, which, together with the tube 12, forms an annular housing for hexagonally arranged infrared generators 21, each in the form of a straight wire-wound former, and rigidly connected by rods 22. The rods 22 pass through bearings on brackets 28 which carry reflectors 23, each of which has a pair of arms 24, 25 passing respectively through apertures in the tube 12 and plates 26 in the tube 13A. A spider 20, fixed to the tube 12, is attached to a rod 19 threaded through a bushing of a handle 17 whereby the relative position of the tubes 13A and 12 can be changed thus turning the reflectors about their respective generators 21. A key and key-way 14, 15 prevent rotation of the tube 12. The heating wires can be connected as a ballast impedance in the power supply to the discharge device 11. In a medication for infra-red radiation only, six units, similar to those described, extend radially from an axis along which the focus of radiation is moved by a mechanism for simultaneously tilting each unit, as a whole, in planes containing the axis.
Patent GB-1195192-A (GB)
Title: Crimping and Swaging Machines.
Inventor: FAIRNIE RONALD ARTHUR
IPC: B21D41/04
Filed: 1966-06-02
Abstract: 1,195,192. Pipe fittings. HYDRAUL FITTINGS Ltd. 2 June, 1967 [2 June, 1966], No. 24666/66. Heading F2G. [Also in Division B3]  A coaxial or angled pipe fitting 5b is provided with a captive nut 7 by crimping a skirt 7a on the nut about a nipple 5c on the fitting. A sleeve or elbow fitting may be swaged to the end of a base, which may be reinforced with braided wire.
Patent GB-1435782-A (GB)
Title: Paper stacker
IPC: B65H45/101
Filed: 1973-05-24
Abstract: 1435782 Delivering fan-fold stationery PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 May 1973 [27 May 1972] 24833/73 Heading B8R A web 30 of fan-fold stationery is delivered to form a stack in a bin 1 by a feed device including pin traction feed belts 10 arranged to swing to- and-fro about a shaft 4 and so lay the web in the bin. The swinging movement is caused by a gear wheel (attached to a shaft 20) which engages in an endless toothed rack path formed by two parallel racks 23 and 24 and two semicircular gear rings 26 and 27. The shaft 20 is connected to the lower pin-tractor shaft 15 by bars 21 and is driven from the pin tractor feed so that the gear wheel runs around the endless path. The distance between rings 26 and 27 is adjustable so that the length of the swing of the pin tractor may match the fold frequency in the web. A guide plate 31 holds the web on the pins 12 of the pin tractor.
Patent GB-699580-A (GB)
Title: Improvements in and relating to tube vibrators
IPC: B06B1/16
Filed: 1950-10-12
Abstract: 699,580. Vibratory .mechanism. LINDKVIST, K. V. Oct. 12, 1950, No. 24910/50. Class 80 (iv). A tube vibrator 4 for insertion in and mixing plastic material such as concrete comprises a cylindrical casing 5 housing rotatable outof - balance masses 11 which are driven by a flexible shaft 6 from a motor 2 connected to the casing 5 by a Bexible portion 3. The masses 11 rotate in bearings 12 held in position by inserted sleeves 14, 13, 16, 17, spring washers 10 and an end plug 9. The sleeve 17 is formed as a bonnet to act as an oil container from which oil is forced upwards to the bearings by an impeller 19, on the spindle of the rotating masses. In an alternative construction a single out-of-balance cylindrical mass is provided which rotates in plain bearings in a sleeve member inserted in the casing and the oil container is formed as a separate bonnet member.
Patent GB-745896-A (GB)
Title: Improvements relating to cellulose acetate compositions
Inventor: BEESLEY STANLEY
IPC: C08K5/45
Filed: 1951-10-25
Abstract: The invention comprises compositions of cellulose acetate of at least 52 per cent acetic acid content with beta-monoacylmethylene sulpholanes or similar b -esters or ethers, (see Group IV (b)), as plasticizers.  In examples, films are cast from acetone solutions of cellulose acetate especially triacetate with various proportions of sulpholauryl acetone, and sulpholauryl derivatives of other aliphatic ketones, and acetophenone; 3-sulpholauryl acetate, butyrate, and derivatives of aliphatic acids up to 5 C atoms; 3-sulpholauryl benzoate in conjunction with alkyl phthalate, phosphate and glycolate plasticizers; methoxyethyl-3-sulpholauryl ethers, and other sulpholauryl aliphatic ethers containing either groups of up to 5 C atoms, and diethers such as the ethoxy ethyl-, and phenyl ether in conjunction with other plasticizers.  The plasticizers may also be used in making sheets by block process, moulding compositions, and lacquers, and in proportions of about 20 to 80 per cent.  The Provisional Specification refers also to sulpholauryl products from other ketones, and other ethers and esters, and other derivatives, which may be used for plasticizing cellulose nitrate and cellulose ethers; and to the use of these compounds as plasticizers &c. for acetone-soluble polymers and co-polymers including polyvinyl acetate, acrylates, vinyl chloride, vinylidene chloride, acrylonitrile, vinyl acetate and isopropenyl acetate. This subject-matter does not occur in the Specification as accepted.ALSO:The invention comprises compositions of cellulose acetate of at least 52 per cent acetic acid content with b -mono-acyl-methylene sulpholanes, or similar b -esters or ethers, as plasticizers. The sulpholane derivatives may be made by the condensation of 3-sulpholene with ketones, esterifying 3-sulpholanol (obtained by hydrating sulpholene), with acids, especially paraffin monocarboxylic acids and by etherifying sulpholanol with alcohols or ethers of glycols.  In examples, the preparation is described of sulpholanyl acetone, from sulpholene and acetone, sulpholanyl butyrate from 3-sulpholanol and n butyric anhydride, sulpholanyl benzoate, from sulpholanol and benzoyl chloride, methoxy ethyl-3-sulpholanyl ether from 3-sulpholene and monomethyl ether of ethylene glycol, and also a phenyl ether of 3-sulpholanol; a number of other esters and ethers and ketone derivatives are specified.  The products are incorporated into cellulose acetate compositions for making foils, mouldings, &c.  The Provisional Specification refers also to sulpholanyl products from nitromethane, diethyl malonate, with hydrolysis to sulpholanyl acetic acid, ethyl cyanoacetate, with hydrolysis to sulpholanyl acetic acid, and the esters of this with alcohols; the preparation of 3-sulpholanyl - 2 - ethyl - hexoate is described; other sulpholanyl esters including the laurate, and derivatives substituted at the 3 and 4 C-atoms including diesters and diethers of 3 : 4 dihydroxysulpholane, and a 3-hydroxy-4-chlorosulpholane are included.
Patent GB-681851-A (GB)
Title: Improvements in time delay devices
Inventor: ALTER SEIGFRIED
IPC: G04F1/00
Filed: 1949-09-29
Abstract: 681,851. Dashpots. CRABTREE & CO., Ltd., J. A., CRABTREE, J. A., and WINTLE, T. D. G. July 20, 1950 [Sept. 29, 1949], No. 24989/49. Class 108 (iii). A pneumatic time delay device comprises a flexible and deformable diaphragm and a closed circuit including an externally adjustable throttle valve, for the passage of air from one side to the other of the diaphragm. In the arrangement shown a rubber diaphragm a, Figs. 2 and 5, is clamped between mouldings b, b<1> defining air chambers c, c<1> on either side of the diaphragm and is provided with a centrally disposed spring-loaded non- return valve d<1>. The chambers c, c<1> communicate through ducts m, m<1>, Fig. 5, the duct m<1> being controlled by an adjustable needle valve n<1>. The valve d<1> is connected through a stem d and link h, Fig. 2, to a spindle e, one end of which operates a switch mechanism (not shown), through an arm g, Fig. 1, and the other end of which is actuated by the armature of an electromagnet, through a bar s, crank p<11> and lever p<1>, p<2>, Fig. 3. The arm p<2> of the lever p<1>, p<2> is loaded by a spring o against an end r<1> of a slot r in the bar s, so that upon energization of the electromagnet, movement of the arm p<2> away from the end r<1> permits the bar s to turn the spindle e against a, spring t and to depress the diaphragm a until the end r<1> abuts the arm p<2> or the electromagnet is deenergized. The switch mechanism actuated by arm g may be that disclosed in Specification 681,818, [Group XXXVII].
Patent GB-749991-A (GB)
Title: Improvements in or relating to electric incinerators
Inventor: LENG THOMAS RICHARD
IPC: F23G5/10
Filed: 1951-10-25
Abstract: 749,991. Ratchet gearing. GENERAL ELECTRIC CO., Ltd. Oct. 27, 1952 [Oct. 25, 1951], No. 25007/51. Class 80(3) [Also in Group XI] A ratchet gearing, which is used in conjunction with an electric incinerator (see Group XI) to ensure that a timing device 101 is wound up after a predetermined number, e.g. four, operations of a foot pedal, operates as follows:-Operation of the pedal oscillates an arm 70 to cause a pawl 138 to rotate a plate 128 through 45 degrees until a pawl 118 falls over a tooth 129 on the plate 128 to prevent the return of the plate 128 on the return of the arm 70. Projections 124, 125 on a plate 122 engage respectively slots 126, 127 in the plate 128, and therefore the plate 122 is rotated through 45 degrees. Cams 136 on a part 135 of the arm 70 are spaced by 180 degrees, and hence after each sequence of four 45 degrees movements a cam 136 comes opposite a projection 124 on the plate 122. Cams 137 on the part 135 and projections 125 on the plate 122 are similarly disposed. When the cams 136, 137 engage respectively the projections 124, 125, the plate 122 is pressed back against a spring 121, and in this position of the plate 122 projections 123 thereon coincide with and are pushed through apertures 116 in a bridge-piece 115 to engage projections 117 on an arm 112 which is hence rotated, through the previously described linkage, on moving the arm 70, to wind the timing device 101. Specifications 715,623, and 750,038 [both in Group XI] are referred to.