baber/WOPTO huggingface dataset:
Patent GB-1040075-A (GB)
Title: Improvements relating to difference circuits for pulse trains
Inventor: GIERTZ WOLFGANG
IPC: H03K21/02
Filed: 1963-07-19
Abstract: 1,040,075. Electric digital calculators. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. July 19, 1963, No. 28737/63. Heading G4A. Referring to Fig. 1 (not shown), pulse trains U10, U20 are fed to AND-gates 11, 21, controlled through delay units 31, 41 by a bistable circuit 51 which is itself controlled by the pulse trains so that it opens the gate receiving the train to which the pulse which last reached the bi-stable circuit 51 belonged and closes the other gate, the delay units 31, 41 ensuring that a pulse which switches the bistable circuit 51 is not itself passed by the gate but subsequent pulses in that train are (unless the bi-stable circuit 51 is switched back in the meantime). By having a sufficient number of such circuits connected in cascade as in Fig. 1, all the pulses in the shorter train (U10 or U20) can be cancelled out together with an equal number of those in the other train, thus giving a single train (at U1n or U2n) which is the difference of the input trains U10, U20. The circuit of Fig. 1 may be preceded by a device to eliminate pairs of coincident pulses. The delay units 31, 41 &c. may be delay lines or R.C. circuits. The device may feed a digitalanalogue converter feeding an indicator.
Patent GB-519852-A (GB)
Title: Improvements in electrical switching apparatus especially adapted for use with pneumatic tube conveying systems
IPC: B65G51/42
Filed: 1938-10-04
Abstract: 519,852. Valve relay circuits. LAMSON ENGINEERING CO., Ltd., and BESSON, A.. Oct. 4, 1938, No. 28776. [Class 40 (v)] Momentary closure of contacts 2 causes a striking-voltage, obtained via a rectifier a, to be applied to a neon valve L. The valve then continues to conduct by reason of a maintaining voltage obtained via a rectifier b. The anode current operates a relay R. The contacts 2 are closed by a carrier of a pneumatic tube conveyer and the relay R may control guiding &c. means. The carrier in its further progress closes a limit switch S, shorting the valve L and so restoring it to the non-conducting state.
Patent GB-355986-A (GB)
Title: Improvements in electrical cable joint boxes
IPC: H02G15/26
Filed: 1930-09-26
Abstract: 355,986. Junction boxes. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm, and OLSSON, E., Alsten, both in Sweden. Sept. 26, 1930, No. 28937. [Class 38 (i).] An underground cable 1 having oil-filled joint sleeves 2, 3 is laid below an inspection box 30 into which projects an oil expansion vessel 18 provided with means for ascertaining the oil level without the necessity of access to the junction box. The vessel 18 is housed in a protecting cap 17 with a cover 25, and supported by solid insulation 24 similar to that in the junction box. The indicator may consist of a float 26 attached to a stem 27 that moves in a transparent tube 28, or it may be a simple dipping aperture. The junction box is made in four parts bolted together and has cable clamps 13, 14 at its ends.
Patent GB-387047-A (GB)
Title: Improvements in means for protecting papers of value and the like
IPC: B41M3/14
Filed: 1931-10-19
Abstract: 387,047. Typewriters &c. CONALBI, P., 23, Viala Piceno, Milan, Italy. Oct. 19,1931, No. 28969. [Class 100 (iv).] Index type-wheel machines hammerimpression arrangements; line-spacing mechanism; carriage-releasing arrangements ; heating-arrangements for types. -In apparatus for protecting papers of value and the like by pyrographically impressing the amount of value of the document on its reverse side, and comprising a plurality of type-wheels 9 having an electric heating-device 10 lodged inside, means are provided to advance the document in such a manner that the impression may be repeated any number of times. Each of the type-wheels 9 is rotated by means of a pinion 18 driven by a toothed sector 19 secured to a setting-lever 20. A handle 2 actuates gears 3, 4 to rotate the cam 5 which operates on a pivoted lever 6, 61 to move upwardly an impression surface 8 to press the document on the type-wheels. A cam 11, rigid with the cam 5, moves a bar 12 connected to a spring-retained sliding plate 13 which advances the carriage 14 on which the document is retained by clips 15. The carriage 14 runs in grooves in the base 1 and is provided with a toothed rack 17 with which engages a spring-pressed pawl 23, Fig. 9, connected to the sliding plate 13. Before beginning its forward stroke the pawl 23 is held away from the rack 17 by a stop 24, and the carriage, which is moved against the action of a spring connected to the carriage and to a drum under spring-action, is retained in position by means of a second spring-pressed pawl 26, Fig. 6, pivoted on a fixed plate 27. The carriage 14 is advanced step by step until at the end of the movement a cam 28 on the rack 17 pushes back the pawl 26 so that it is held in inoperative position by a spring-pressed stop 30 ; also in this position the pawl 23 is disengaged by the stop 24 and the carriage then returns to its initial position. At the end of the return movement a latch-piece 32 on the rack 17 disengages the pawl 26 from the stop 30. The casing 21 is provided with a heat-insulating lining and the impression surface 8 and mechanism for advancing the document are insulated from the base in order to prevent the heat being transmitted from the type-wheels to the rest of the apparatus.
Patent GB-1168140-A (GB)
Title: Pipe Extrusion Method
IPC: B29C48/90
Filed: 1967-06-23
Abstract: 1,168,140. Extruding polypropylene pipes. AVISUN CORP. 23 June, 1967 [28 June, 1966], No. 29017/67. Heading B5A. A method of making polypropylene piping of uniform wall thickness and with a smooth internal surface comprises extruding molten polypropylene at a constant rate through an annular die 21 having a width "W" at least 13% less than that of the desired wall thickness "T" of the finished pipe, then passing the extruded pipe through a cooled sizer 19 in contact with the die and drawing off the pipe on take-off rolls (not shown) at a constant speed. Air enters the interior of the pipe through a bore 29 in a mandrel 15 and ensures contact of the pipe exterior with the sizer interior surface. The width "W" of the die is preferably not less than 22% the desired wall thickness of the pipe and the molten polypropylene is delivered to the orifice at about 410 F., the sizer being maintained at about 80 F.
Patent GB-280526-A (GB)
Title: Method of loading or discharging cargo, spoil, and the like and apparatus therefor
IPC: B63B27/22
Filed: 1927-10-31
Abstract: 280,526. Atkins, J. F., and irvine, H. S. Nov. 12, 1926, [Convention date]. Derricks; transferring and paying- out between elevated supports; grabbuckets.-A grab 4 is raised by a winch 6 and rope 8, and the weight is then transferred to a hanger 12 suspended from an inclined rope 7, so that on paying out the rope 8 the hanger swings with the grab to a position over the discharging point whilst the rope 8 remains under tension. When the hanger 12 reaches the lowest position, further paying out of the rope 8 opens the grab. As shown, the derrick 2 is stationary and the suspension rope 7 passes over a head-sheave 3a on a derrick 3 which is slued by the load between positions determined by guy-ropes 57, 56. The ring 5 co-operating with hook 42 in the grab-head is suspended by chains from the hanger 12. The hook 42, Figs. 10 and 13, is provided with a shaped slot 44 cooperating with a button on the lifting chain, and is kept in position for engagement with the ring by a spring 51. Slings.-The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of slings in place of grabs.-This subject-matter does not appear in the Specification as accepted.
Patent GB-152882-A (GB)
Title: Improvements in sleeve valve operated internal combustion engines of the two-stroke cycle type
IPC: F01L7/04
Filed: 1919-11-22
Abstract: 152,882. Paterson, T. W. Nov. 22, 1919. Valves; valve-gear.-A rotary sleeve-valve 3 between the piston and the cylinder has three ports controlling respectively the inlet port 5 to the crank-chamber, a terminal transfer port 6, and an exhaust part 9 near the cylinder head. The opening and closing of the transfer port 6 are effected by the combined movements of the piston and sleeve. The port 5 is arranged low down in the cylinder so as to be opened in the early part of the up-stroke. The invention is shown applied to an engine with twin-opposed cylinders. The valves may be worked by gearing direct from the crank-shaft, as shown, or they may have stub spindles passing through the cylinder heads and driven by chain gearing from a side shaft.
Patent GB-357789-A (GB)
Title: The method of manufacturing t-irons
IPC: B21B1/08
Filed: 1930-09-29
Abstract: 357,789. Rolling flanged bars. GRAVE, 0., 10, Gerhardstrasse, Peine, Hanover, Germany. Sept. 29, 1930, No. 29148. [Classes 83 (ii) and 83 (iv).] Sheadring.-T-section bars are formed by severing the web of an I beam without waste in a rolling mill with a pass shaped as shown in the Figure.
Patent GB-487202-A (GB)
Title: Improvements relating to circular looms for weaving
IPC: D03D37/00
Filed: 1937-10-25
Abstract: 487,202. Circular looms. JASICEK, A., POLNAUER, F., and HORN, G. Oct. 25, 1937, No. 29148. [Class 142 (ii)] The shuttles 3 are driven by a moving magnetic field generated by a stator 1 provided with a polyphase or rotary field winding 2, a synchronizing device being used comprising iron laminated stops 4 provided in front of each shuttle. These stops are spaced apart by attachment to the arms 9 of a rotor 8, which is positively and mechanically connected to all the other moving parts of the loom. If a shuttle should overtake a stop, it is diverted thereby radially into contact with a fixed guide ring 5, and braked until its speed resumes normal value. Rollers 7, 7a are provided on the stops or shuttles or both to facilitate the passage of warp threads between them. The rotor 8 actuates the beat-up blades and may be driven from a shaft 11 actuated by a variable speed motor 12. This shaft may actuate apparatus 14 for moving the healds and warp regulators. The stops 4 may serve to drive the rotor &c., and the motor 12 be dispensed with and be replaced by a mechanical or electrical regulator in order to allow of regulating the working speed or the slip in relation to the rotary field. The loom may be rotated backwards by a hand wheel 16 if the weft breaks, the winding 2 being then disconnected from the mains, the stops carrying round the shuttles by means of their thickened ends.
Patent GB-742305-A (GB)
Title: An electronic device for producing electric pulses which occur in a random manner and which may be used for drawing lots
Inventor: KOSTEN LEENDERT
IPC: G07C15/00
Filed: 1951-12-13
Abstract: 742,305. Pulse generating circuits. STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Dec. 13, 1951 [Dec. 18, 1950], No. 29251/51. Class 40 (6). In a circuit for producing random pulses, the frequency of a pulse generator is varied by applying a voltage or current derived from a fluctuating phenomenon to the generator. A multi-stable state trigger circuit is operated by the pulses to change its state and a switching connection is provided to cause the generator to operate. The recurrence frequency of the blocking oscillator V6 back-coupled over transformer L1, L2 is varied by altering the grid potential of cathode follower V5(1) which varies the cathode potential and thus controls the discharge of capacitor C15. The output from gasfilled triode V1 in a magnetic field is fed over amplifying stages to the grid of the tube V5(1). Depression of the key S<SP>1</SP> applies a paralysing bias to tube V6 through tube V5(1) after a short delay. The switch arm S<SP>11</SP> closes immediately after S1 to allow tube V9 to pass pulses from the trigger pair V7, V8 to a second trigger pair V10, V11, the potential from the anode of tube V11 being used to operate a device. A tertiary winding L3 feeds the grid of cathode follower V5 (11) biased negatively to suppress small pulses which may occur at the time the key S is depressed. The apparatus is stated to be employed in operating a device for drawing lots.
Patent GB-617451-A (GB)
Title: Stabilized photoprinting materials and process of producing them
IPC: G03C1/60
Filed: 1946-10-01
Abstract: 617,451. Photographic diazotype processes. GENERAL ANILINE & FILM CORPORATION. Oct. 1, 1946, No. 29263. Convention date, Jan. 4, 1945. [Class 98 (ii)] The stability of a light sensitive layer containing a diazo compound and an azo dye coupling component therefor is increased by adding a sulphonated ortho-hydroxy-carboxylic acid of the benzene or naphthalene series to the coating solution used to form the layer. Premature coupling is thereby avoided. Specified stabilising compounds are 5-sulpho-salicylic acid, 5-sulpho-o-cresotic acid, and 6- and 8- sulpho - 2 - hydroxy - 3 - naphthalene - carboxylic acids. Examples 1, 2 and 3 describe coating solutions which include p-diazodiphenylamine sulphate and acetoacetamide and as stabilisers 5-sulphosalicylic acid, 5-sulpho-ocresolic acid, and 8-sulpho-2-hydroxy-3-napthalenecarboxylic acid respectively. Examples 4 and 5 describe coating solutions including the zinc chloride double salt of diazotized N : N- dimethyl - p - phenylenediamine, 2,3 - dihydroxy-naphthalene and sodium naphthalene 1,3,6-trisulphonate and respectively 5-sulphosalicylic acid and 5-sulpho-o-cresolic acid. Examples 6 specifies a coating solution including the zinc chloride double salt of diazotized N, N-diethyl-p-phenylene-diamine, 1- phenyl-3-methyl-pyrazolone and 5-sulpho-ocresolic acid, and examples 7 and 8 coating solutions including 2,1-diazo-hydroxy-naphthalene-5-sulphonic acid, nickel sulphate and phloroglucinol and respectively 5-sulpho-ocresolic acid and 6-sulpho-2-hydroxy-3-napthlenecarboxylic acid.
Patent GB-723329-A (GB)
Title: Improvements in and relating to the non-destructive testing of solid bodies
Inventor: HALLIDAY WILLIAM
IPC: H04R17/00
Filed: 1951-12-13
Abstract: 723,329. Ultrasonic transmitting and receiving apparatus. KELVIN & HUGHES, Ltd. Dec. 12, 1952 [Dec. 13, 1951; Dec. 6, 1952], Nos. 29270/51 and 31021/52. Class 40 (4). Ultrasonic apparatus for the testing of solid bodies comprises a member for transmitting vibrations to the body and a second member for receiving echoes from the body, one member at least partly embracing or surrounding the other. Receiving and transmitting probes may be shaped as shown in Fig. 1 and assembled as shown in Fig. 2 which shows also the positions of the crystals 13, 14. Acoustic screening may be provided by layers of cork between adjacent teeth. Acoustic screening may be provided by making probes of different lengths. In Figs. 5 and 6 wedge-shaped probes are used, one transmitting probe 24 being placed between two receiving probes 26. In Figs. 11 and 12 a transmitting crystal 36 is pressed against a thin slab 35 of methyl methacrylate and enclosed in a block 38 of laminated resin. Two receiving crystals 42 are similarly associated with blocks 40 of methyl methacrylate and two further blocks 43, 44 are clamped to the outer faces of the receiving probes and hold a sheet of rubberised fabric 45 over the probes. A metal cover 47 screens the receiving crystals electrically.
Patent GB-781407-A (GB)
Title: New quaternary amino ethers
IPC: C07D295/088
Filed: 1955-10-14
Abstract: The invention comprises quaternary amino-ethers of the general formula <FORM:0781407/IV (a)/1> wherein X represents a halogen atom, and the preparation thereof by reacting at an elevated temperature an amino-alkoxide of the general formula <FORM:0781407/IV (a)/2> with a diethylaminoethyl halide of the general formula <FORM:0781407/IV (a)/3> wherein M represents an alkali metal and Y represents a halogen atom, and the tertiary amino-ether thus obtained is reacted with approximately two molecular proportions of a methyl halide.  The reaction with the amino-alkoxide may be carried out at a temperature within the range of 150 DEG  to 250 DEG  C.  The reaction with the methyl halide is preferably carried out in an inert organic solvent, e.g. methanol.  In an example, the sodium salt of b -pyrrolidino-ethanol is reacted with diethylaminoethyl chloride to form the b -(N-pyrrolidinyl)-ethyl b 1-diethylaminoethyl ether which is then reacted with methyl iodide to form the diodide of N-diethylmethylammonium-ethoxyethyl - N1 - methylpyrrolidine of the above general formula wherein X represents iodine.
Patent GB-280710-A (GB)
Title: Improvements in or relating to hand wheels
IPC: B62D1/08
Filed: 1926-11-19
Abstract: 280,710. Dover, H. W. Nov. 19, 1926. Hand-wheels.-A hand-wheel with a rim formed in three parts a, b, c brazed, welded. &c. together, substantially as is described in Specification 162,544, has the mid-member a formed with recesses d and the inner member b slit to form tongues f which are turned down, the spokes e such as those, described in Specification 162,499, being introduced into the apertures thus formed and secured in place by casting molten aluminium, brass, or typemetal or jike alloy h about their ends. The spoke ends are preferably compressed to prevent entry of molten metal therein and perforated and twisted to improve the connection. The spokes may be cast as a preliminary operation, or they may be formed by casting them, together with the metal h, in situ.
Patent GB-1449118-A (GB)
Title: Aluminum sacrificial anode
IPC: C23F13/14
Filed: 1975-07-11
Abstract: 1449118 Hot-worked aluminium alloy anodes DOW CHEMICAL CO 11 July 1975 [15 July 1974] 29285/75 Heading C7A [Also in Division B3] An alloy containing in percentage by wt:- Bi 0À02 -2 Ga 0À005-0À05 In 0À005-0À5 Al balance is hot-worked to form a sacrificial anode. Working is preferably carried out by extrusion with a reduction ratio of at least 9:1 and a starting temperature of at least 200C and particularly 400- 600C. The alloy may be hot-worked sufficiently to produce an oxidation potential of 1.0 to 1À3 volts at a current density of 108 ma/m<SP>2</SP> when measured with reference to a saturated calomel half cell in an aqueous electrolyte having a resistivity of 5000 ohm cm. or an oxidation potential of 1.3 to 1.6 volts at a current density of 538 ma/m<SP>2</SP> in saturated calcium sulphate solution.
Patent GB-533408-A (GB)
Title: Improvements in or relating to axles, shafts and the like
IPC: F16C3/02
Filed: 1939-11-04
Abstract: 533,408. Shafts and shafting. OAKDEN, H. Nov. 4, 1939, No. 29399. [Class 80 (ii)] An axle, shaft, or the like, comprises two concentric members 2, 4 each supported independently in its own set of bearings, 3, 5, a small clearance 6 being provided between the members 2, 4. During normal running the load is supported by only one of the members 2, 4. If this one should fail the load will be transferred to the other concentric member. The latter may be fitted with an indicator, such as a clapper 9 and bell 10, which rings when the second concentric member commences to rotate.
Patent GB-1116073-A (GB)
Title: Method of separating glass frit sealed glass parts
IPC: H01J9/26
Filed: 1965-07-12
Abstract: To separate two glass parts, particularly of a cathode-ray tube, joined together by a glass frit seal, either the inner or the outer surface of the parts adjacent the seal are alternately heated and cooled respectively above and below the temperature of the opposite surface to cause bending fatigue and fracture of the seal, neither the heating nor the cooling being sufficient without the other to cause separation of the parts. Heating and cooling may be by flowing hot water at about 52 DEG  C. and cold water at about 21 DEG  C. over the outer surface of the tube envelope.  Any external bead is preferably first removed as by etching.  Other thermal treatments, such as the use of hot and cold air, are referred to and preferably low air pressure is applied to the inside of the envelope.
Patent GB-1247509-A (GB)
Title: Feed chute for metal-melting furnaces
IPC: F27B3/18
Filed: 1970-06-17
Abstract: 1,247,509. Charging metal melting furnaces. ELECTROLYTIC ZINC CO. OF AUSTRALASIA Ltd. 17 June, 1970 [19 June, 1969], No. 29413/70. Heading F4B. Control of zinc sheets being fed down a shoot 2 of substantially rectangular cross-section to an induction melting furnace 1 is ensured by a pivoted flap 3 forming part of the shoot lower wall and actuated by the piston rod 4 of a double-acting pneumatic motor 6. The two side walls adjacent the flap are flared from 4-6 degrees to allow the flap an additional degree of outward movement while maintaining the enclosure. The motor 6 is controlled by a double solenoid valve (7, Fig. 2) itself controlled by a spring-loaded switch (8).
Patent GB-1477320-A (GB)
Title: Circuits for equalising sampled signals
IPC: H03K7/02
Filed: 1974-07-03
Abstract: 1477320 Transistor gating circuits; active filters; equalizing sampled signals WESTERN ELECTRIC CO Inc 3 July 1974 [9 July 1973] 29433/74 Headings H3T H3U and H4R A signal sample equalizing arrangement for use in a time division communication system incorporates two storage capacitors 108, 107 which may be coupled together either through an inverting buffer amplifier 105 and switch 106 or directly through a switch 107. There is a further switch 104 via which an input at 100 may be applied to the capacitor 108. In a sampling operation beginning with all switches open, the switch 106 is first closed such that the voltage on capacitor 108 from the previous sample is transferred via the inverting amplifier 105 to the capacitor 107. Switch 106 is opened and 104 closed, so that a new sample is applied to charge capacitor 108. Switch 104 is then opened and switch 109 closed so that the charge on the two capacitors is shared and the voltage on capacitor 108 alters accordingly. The voltage after amplification through 105 appears at the output 112. It is shown in the Specification that by appropriate choice of the capacitance ratio (m) and gain of the amplifier 105 (- G) frequency attenuation in the range between zero and the sampling frequency may be avoided. In one embodiment (Fig. 6, not shown) IGFETS are used as the switches and in the inverting amplifier circuit. A further IGFET is provided as a load for the amplifier circuit to compensate for its non-linear response. In an alternative arrangement (Fig. 9, not shown) a further switch in the input line with a large capacitor in parallel with the switch output is provided and this switch is operated in phase with the switch 106, and in the opposite phase to the switches 104, 109, which can now be operated in synchronism. This arrangement simplifies the switching signal requirements, by rotating the capacitor 108 from the input. A suitable IFGET circuit for the arrangement is shown.