baber/WOPTO huggingface dataset:
Patent GB-952894-A (GB)
Title: Improvements in textile combing machines
Inventor: SHAW JACK
IPC: D01G19/04
Filed: 1961-02-21
Abstract: 952,894. Ratchet gearing. T.M.M. (RESEARCH) Ltd. Feb. 13, 1962 [Feb. 21, 1961], No. 6393/61. Heading F2Q. [Also in Division D1] A textile machine (see Division D1) has a feed roller 10 rotated intermittently by a ratchet 11 and pawl 13, the latter being mounted in a catch box 12 which is rotatable on the roller 10 and which in common with the roller swings about a pivot 7 under the influence of a rocker shaft 1 operating through linkage 2, 3, 6. An arm 15 is pivoted at 16 to the box 12 and at 17 to a bar 18 clamped to the link 3 so that the box 12 oscillates on the roller 10 as it swings. Sliding adjustment of the bar 18 in its clamp adjusts the time at which the feed roller begins to rotate relative to its swinging motion. By altering the point of pivotal attachment of the arm 15 to the catch box, forward rotary movement of the roller 10 may be effected during its rearward swing.
Patent GB-837114-A (GB)
Title: Fluid-actuated valves
Inventor: FURNIVALL IVOR MAURICE
IPC: G05D16/20
Filed: 1957-02-26
Abstract: 837,114. Valves. INDUSTRIAL GUARDING EQUIPMENT Ltd. Feb. 11, 1958 [Feb. 26, 1957], No. 6397/57. Class 135. In a fluid-actuated valve comprising inlet, outlet and exhaust ports 11, 13 and 14, Fig. 1, respectively, a main closure 15 for connecting the outlet port 13 to the inlet or exhaust ports, a pair of pistons 16, 17 for moving the closure 15, and electromagnetic valves 21, 25 for controlling the supply of actuating fluid to the pistons, it is arranged that when both electromagnetic valves are energized fluid is supplied to one piston and when both of these valves are de-energized fluid is supplied to the other piston. Valve 21 has an inlet passage 22 through the solenoid core, which is closed when the solenoid is energized, whilst an associated exhaust passage 23 is closed when the solenoid is deenergized. The inlet and exhaust passages 27, 26 of valve 25 are similar to those of valve 21 but are closed upon de-energization and energization, respectively, of the valve solenoid; the inlet 27 is in permanent communication with the'rear surface of piston 17 via a passage 28. The valve solenoid S1, S2, Provisional drawing, are in a circuit comprising switches E, O responsive to the pressure acting on pistons 16, 17 respectively, and relay R1, R2, the former having normally open contacts R1a, R1b, Rlc, and the latter having a normally open contact R2a and a normally closed contact R2b. Upon closing a switch C, the relay R1 is energized and solenoid S1 is energized over contact R1b; the consequent pressure drop in the fluid acting on piston 16 moves the switch E to cause energization of solenoid S2, the resulting admission of fluid on to piston 17 causes switch O to open. Opening of the switch C de-energizes the solenoids, the reduced pressure acting on piston 17 and the increased pressure acting on piston 16 enabling the switches O, E and relay contacts to return to the position shown. The main valve will always return to the closed position with ports 13, 14 in communication should there be a failure of one or both electromagnetic valves or of the electrical control circuit.
Patent GB-997236-A (GB)
Title: Improvements in electric pulse transmission circuits
IPC: H03K5/003
Filed: 1962-02-19
Abstract: 997,236. Pulse modulation circuits; transistor clamping and negative resistance circuits; automatic exchanges. AUTOMATIC ELECTRIC LABORATORIES Inc. Feb. 19, 1962 [Oct. 10, 19611, No. 6399/62. Headings H3T, H4K and H4L. In an electrical, signal transmission system including a conductor arranged to carry pulses separated by guard intervals, a circuit network is connected to a point on the conductor and is arranged to clamp the conductor at a predetermined potential during the guard intervals to remove any signal remaining on the conductor during those intervals. As shown in Fig. 1, the clamping circuit comprises transistors Q 1 , Q 2 , Q 3 , the transistors Q 1  and Q 3  being connected in a common collector configuration and the transistor Q 2  in a common emitter configuration. The base 10 of transistor Q 1  and the emitter 12 of transistor Q 3  are arranged to be biased at zero volts, adjustment being provided by resistors 16, 24. The overall voltage gain of the three stages is arranged to be unity, the gain of stage Q 2  being adjusted by potentiometer 20, and any input signal will appear at the output in inverted form due to the 180 degree phase charge in stage Q 2 . The terminal 30 is connected to a point in the transmission link of a pulse signalling system, the switches 17, 28 shown for convenience as contacts, being controlled by timing pulses so that they are closed during the guard intervals between pulses to hold the terminal 30 at zero volts. Other clamping levels may be provided by correspondingly adjusting the bias on the base of transistor Q 1  and the emitter of transistor Q 3 . The transistor Q 3  may be dispensed with and the output coupled directly via the capacitor 22 to the switch 28. In a modification, Fig. 2 (not shown) direct coupling is used between the stages. In an alternative arrangement Fig. 3, transistors Q 1  and Q 3  function as before and the two stages are coupled by a transformer T 1  having two primary windings N1, N2, alternately connected by switches 19, 23. The terminal 30 is connected to the transmission line and during a pulse period the switch 19 is closed and switch 23 open. In this position the input signal is increased by the turns ratio N1:N3 of the transformer T1. In the guard intervals the switch 19 is open and the switch . 23 closed and interstage coupling is via winding N2 which is arranged so that the output signal is 180 degrees out of phase with the input signal and balances it to hold the transmission line at zero potential. The application of the clamping circuits to a time-division multiplex telephone switching system using resonant transfer is described, each station including a low pass filter comprising a shunt capacitance and series inductor connected to the transmission line via a gate circuit the duration of a time slot being equal to half the resonant period of the tuned circuit thus formed.
Patent GB-249500-A (GB)
Title: Improvements in and relating to paper ruling machines
IPC: B41G3/00
Filed: 1926-03-08
Abstract: 249,500. Prentice, T. F. March 17, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Ruling - machines. - A ruling-machine comprises a ruling cylinder or cylinders 3, ruling means such as discs 13, a reciprocating sheet-feeding carriage 26, and a device such as a gate controlling the feed of the sheets, the discs 13, carriage 26, and gate being operated by a cam cylinder 7, the speed of rotation of which may be varied with respect to that of the cylinders 3 so that sheets of any length may be ruled. As shown applied to a doublecylinder machine, the cylinders 3 are driven by gearing from a main shaft 4, and associated with each cylinder is a cam cylinder 7, that of the second ruling-cylinder being rotated from that of the first by gears 35 - - 38. The first cam cylinder 7 is rotated from the shaft 4 through change wheels 15 - - 18. Adjustably fixed on this cylinder are cams 8, 9, the former acting on a roller 10 to trip the discs 13 and the latter raising and lowering the gate (not shown) by means of a roller arm 11 and a link 12. The sheet-feeding carriage 26 is reciprocated over a pile of sheets by an arm 25 fixed on a shaft 33 carrying a second arm 32 actuated through a rod 31 by an eccentric sheave 29 mounted on the first cam cylinder 7. The arm 32 is provided with a series of holes 34 or a slot, or the throw of the eccentricmay be varied whereby the stroke of the carriage may be adjusted to suit the length of sheet in use.
Patent GB-990861-A (GB)
Title: Improvements relating to the mounting of fluid-operated implements on vehicles
IPC: E02F3/38
Filed: 1962-02-20
Abstract: 990,861. Shovelling machines. L. B. THWAITES. Feb. 8, 1963 [Feb. 20, 1962], No. 6447/62. Heading E1F. An assembly for detachably mounting on a vehicle involves a frame on which is mounted a fluid-actuated implement and associated fluid transmission lines 57, 58, valve control means 56, reservoir 53 and pump 51, 52; the pump being so positioned that it can be coupled to the power take off unit of the vehicle when the assembly is mounted on the vehicle. The implement is preferably a drag shovel and the vehicle is the chassis of a dumper truck from which the skip has been removed.
Patent GB-1262354-A (GB)
Title: Process for preparing polyester fibers having non-uniform dyeability
IPC: D02G1/00
Filed: 1969-02-06
Abstract: 1,262,354. Polyester filaments. TEIJIN Ltd. 6 Feb., 1969 [7 Feb., 1968], No. 6572/69. Heading B5B. [Also in Division D1] A process for imparting non-uniform dyeability to polyester fibre comprises suspending the fibre in a fluid maintained at a temperature above the fibre melting temperature for a period having a lower limit defined by log 10  T - log 10  T m  = -0À688 - 0.588 log 10  t; where T is the heat treatment temperature in ‹ C., T m  is the fibre melting temperature in ‹C., and t is the lower limit of the treatment period measured in seconds; and maintaining the fibre tension below 0À03 g./d. to produce a filament whose final degree of crystallinity after heat treatment is at least 40%. The upper limit of the treatment period is preferably defined by log 10  (T - T m ) = 1.576 - 1.085 log 10  t, where T and T m  are defined as above and t is the upper limit of the treatment period measured in seconds. The suspension period is preferably from 0À02 seconds to 0À10 seconds. Heat treatment temperature T is preferably at least 100‹ C. higher than the fibre melting temperature T m , and preferably lies in the range 370‹ C. to 1000‹ C. The fibre may be heated by passing it through a flowing, heated gas or by infra-red radiation. The treatment and dyeing of heat-set and non-heat-set polyethylene terephthalate fibre is exemplified.
Patent GB-289217-A (GB)
Title: A new or improved method of coupling thermionic valves for the amplification of electrical impulses
IPC: H03F1/50
Filed: 1927-03-10
Abstract: 289,217. Johnston, J. F. March 10, 1927. Thermionic amplifiers and detectors, of the kind employing direct plate-to-grid connections between successive valves, have the various electrodes connected to suitable points on a voltage source having a continuous potential gradient. Fig. 3 shows the system applied to a three-valve wireless receiver, comprising a high-frequency amplifier V1, an anode-bend detector V2, and a low-frequency amplifier V3. Each plate is directly connected to the following grid, and tappings for the plate and grid voltages of the several valves are taken from suitable points on a battery B4 providing a continuous potential gradient, to which the cathodes with their separate heating-batteries B1, B2, B3 are also connected. When high ohmic resistances are used, say in place of the choke L3, the corresponding connection to the battery B4 is beyond the connection of the filament battery B3. The filament batteries B1, B2, B3 may be interposed in the battery B4 instead of being merely connected to it. When four-electrode valves are used, the space-charge grids are also supplied from suitable points on the battery B4. The valves may have indirectly-heated cathodes, and more than one set of electrodes may be arranged in one envelope. When reaction is employed with the detector valve V2, the reaction coil (or a choke coil where capacity control of reaction is employed) is included between the plate of the detector valve V2 and the junction of the grid lead of the amplifier V3 and the choke L3.
Patent GB-562472-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H01F7/02
Filed: 1943-05-14
Abstract: 562,472. Permanent magnets. HITCHCOCK, S. I. May 14, 1943, No. 6642/42. [Class 35] A permanent rectangular bar magnet 1 has two laminated polepieces 2, each of which is recessed at 4 to receive the end face of the magnet and a part at least of two opposite sides, the magnet and polepieces being secured by spot-welding 6. The top and bottom of each polepiece may be unrecessed so that the magnet ends are totally enclosed in a box-like recess ; these laminations are assembled after the spot-welding.
Patent GB-427137-A (GB)
Title: Method and means for controlling gas or vapour electric discharge tubes
IPC: H02M1/04
Filed: 1934-03-02
Abstract: 427,137. Converting. KRAMOLIN, L. L. DE, 25, Nassauischestrasse, Wilmersdorf, Berlin. March 2, 1934, No. 6739. Convention date, March 7, 1933. [Class 38 (ii)] The discharge device d in a converting arrangement is provided with two grids c, g to which are applied phase displaced voltages the amplitude of at least one of which can be varied so as to displace the phase of the resultant field and thus vary the moment of ignition. The phase displaced voltages are obtained from a potentiometer k supplied from a transformer tr, phase displacement being obtained by a condenser i and a choke h. Rotation of the arm increases the amplitude of one voltage and decreases the amplitude of the other voltage. The choke h may be replaced by a resistance and the transformer tr may be omitted. The Specification states that three grids fed with three phase displaced voltages may be used, the grid control voltages may be obtained by means of a discharge tube as shown in Fig. 4, the voltages being obtained from between the electrodes o, p and n, p. The magnitudes of these voltages are varied by turning the tube in one direction or the other. In another modification the voltages are obtained from across resistances connected in the anode circuits of saturated diodes the filament supplies of which are varied simultaneously.
Patent GB-707334-A (GB)
Title: Improvements in rubber compounding
Inventor: SLOVIN DAVID GEORGE
IPC: C08K5/13
Filed: 1952-03-15
Abstract: The development of pink discoloration in a vulcanized rubber article, e.g. the core of elastic yarn, containing symm. di-beta-naphthyl-p-phenylene diamine as antioxidant is inhibited by incorporating in the rubber formulation before vulcanization 2,5 di-tert. butyl hydroquinone.  The rubber may contain 0.25-2.0 per cent. of symm. di-beta-naphthyl-p-phenylene diamine and 0.25-5.0 per cent. of 2,5 di-tert. butyl hydroquinone. Accelerated testing of samples by exposure to carbon arc light, filtered to approximate natural sunlight, is described. Specification 380,368, [Group IX], is referred to.
Patent GB-102017-A (GB)
Title: Improvements in Lock Nuts.
Inventor: PATENTMOER VAN DER VALK S CERT
IPC: F16B39/32
Filed: 1916-05-11
Abstract: 102,017. Van der Valk's " Certitudo " Patentmoer, and Eck, F. M. van Panthaleon, Baron van. May 11, 1916. Addition to 101,133. Locking nuts.-Comprises the following improvements in the locking - device claimed in the parent Specification. The threads on the locking-pin are made of square section, or, if of tapered form, are made of such a depth that they do not touch the bottoms of the bolt-threads. Fig. 3 shows a pin with tapered threads, and Fig. 3<a> shows a pin with square threads.
Patent GB-307624-A (GB)
Title: Improvements in or relating to metal flasks for use in the vulcanisation of dental plates or the like
IPC: A61C13/16
Filed: 1928-03-05
Abstract: 307,624. Hallam, A. E. March 5, 1928. Dental flasks. - Two-part dental flasks are furnished with means whereby the flask can be handled by a hook-shaped piece of wire. As shown in Fig. 1, the upper section of the flask is formed with a channel f bridged by a bar or web g apertured at h to receive the wire. Fig. 3 shows a modification in which the channel f is formed by a. pair of parallel ribs extending across the flask.
Patent GB-869471-A (GB)
Title: Improvements in and relating to apparatus for proving the position of lift cages in their shafts
IPC: B66B1/50
Filed: 1958-03-04
Abstract: 869,471. Lifts; unlocking shaft gates; feeding trams to mine cages. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., and MARIS, N. May 26, 1959 [March 4, 1958], No. 6871/58. Classes 78 (3) and 78 (4). A device mounted in a lift or mine shaft for sensing when a lift car or mine cage is aligned with a landing, comprises a roller 11 which cooperates with a cam 17 on the car or cage and is mounted on an arm 10, a block 6 carrying a shaft 3 to which the arm 10 is secured, and an electric switch or a fluid pressure valve 14 which is actuated when, due to the engagement of the roller with the cam, the block is moved along guides 8 against the action of a spring or springs 7. Operation of the switch or valve is used to initiate decking, tram loading, gate opening or other operations. A jack 15 is provided to extend or retract the arm 10 by rotating shaft 3 through piston rod 1, link 1A and arm 2, and a switch or valve 19 co-operates with a roller 21 on the piston rod to register when the arm is fully extended. In a modification (Fig. 3, Complete, not shown) the cam 17 is provided with a step and the block 6 operates a pair of switches or valves in sequence as the two levels of the cam contact the roller. Also the switch or valve 19 is operated by direct engagement with the roller 11, and the lower end of the jack is pivoted so making the provision of link 1A. unnecessary. In a further modification (not shown) the arm is not retractable.
Patent GB-210650-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B35/10
Filed: 1923-03-09
Abstract: 210,650. Witkowitzer Bergbau-und- Eisenh³tten Gewerkschaft, and Hein, R. March 9, 1923. Rolling.-In a rolling-mill wherein one of the rolls is normally driven by the action of the work, this roll is provided with hand-controlled friction gearing by which it may be temporarily driven so that the work may be inserted without shock. In Fig. 2 the driven roll U, and the idle roll 0 are respectively provided with friction members R1, R2 which are brought into engagement to drive the upper roll when required by means of a double lever H operated through a member T and threaded spindle S from a hand wheel H<1>. After insertion of the work a slot s in the spindle is slipped over a fixed pin b to disengage the friction gears, a spring f assisting the disengagement. In a modification, Fig. 3, a gear Z on the driven bottom roll engages a gear Z' fixed on the upper idle roll and bolted to a friction member S' which may be engaged with a complementary friction member on the upper roll by means of a screwed spindle s<1> acting through a spring f<1>.
Patent GB-288018-A (GB)
Title: Improvements relating to apparatus for the softening or purifying of water or for carrying out processes based upon exchange reactions
IPC: C02F1/42
Filed: 1927-03-11
Abstract: 288,018. United Water Softeners, Ltd., Thomson, R. H., and Lawrence, H. S. March 11, 1927. Purifying liquids.-The valves controlling treat. ment, regeneration, and washing-out in base-exchange plant for softening water &c. are automatically operated by balance mechanism which includes a receptacle to which some of the liquid under treatment is led. Softened water from a treatment vessel 1 passes through a pipe 5 to a vessel 26 having a main outlet 27 and an outlet 28 through which a small proportion of the water is discharged to a pipe 22 and a receptacle 21 forming one arm of a lever 20. The other arm of the lever is tubular and contains a rolling weight 23. The lever has a lost-motion connection to a spindle which has link connection to a valve 6, on the pipe 5, a valve 3 on the inlet pipe 2 to the treatment vessel, a valve 8 on a pipe 7 connecting the pipe 5 to waste, and a valve 13 on a pipe 12 connecting a brine-measuring vessel 11 to an injector nozzle 14 on the inlet pipe 2. The fall of the vessel 21 thus closes the valve 6, opens the valves 8, 12 and partially closes the valve 3. Water from the pipe 2 draws in brine through the injector, and the base-exchange material is regenerated, the used brine passing to waste. Concentrated brine is supplied to the vessel 11 through a pipe 10 from a storage tank 9, being normally maintained in the vessel 11 to the level of the lower end of a pipe 32. The level sinks, however, when the valve 13 is opened, the pipe 12 having a cross-section greater than that of the pipe 10. Eventually the inlet to the pipe 12 is closed by a float 34, and the period of regeneration is followed by a washing period. In its lower position the bucket 21 is slowly emptied by a siphon 24 controlled by a valve 25. When the bucket is empty the weight 23 causes 'the valve-operating mechanism to return to its initial position and re-set the valves in the treatment position. A float 31 in a vessel 29, to which softened water is delivered from the outlet 27, controls a valve 30 on the pipe 5. The proportioning tank 26 may be connected in the main for the untreated water instead of in that for the treated water. Or instead of the proportioning tank a meter may be used which is arranged to close an electric circuit and thereby release a catch which frees the balance mechanism, the receptacle 21 having been previously filled.
Patent GB-934317-A (GB)
Title: Improved bust supporting device
IPC: A41C3/06
Filed: 1962-02-22
Abstract: 934,317. Brassieres. G. DERNBURG. June 28, 1962 [Feb. 22, 1962], No. 6899/62. Class 141. A strapless or other brassiere is stiffened by stays and a support wire of double U or double V shape covered in fabric is attached only at points 30, 31, 32 in a straight line. The wire may be one piece or two pieces joined at the centre.
Patent GB-804321-A (GB)
Title: N-ª‰-[cyclohexyl (or hexahydrobenzyl)-aryl (or aralkyl)-amino]-ethylpiperidines and process for their preparation
IPC: C07D295/12
Filed: 1955-03-09
Abstract: The invention comprises compounds of the general formula <FORM:0804321/IV (b)/1> (wherein n1 and n2 are 0 or 1 and R and R1 are H or -OCH3, or, if adjacent, represent a dioxymethylene group) and their salts (e.g. hydrochlorides); and their preparation by heating an N - (b  - halogeno) - ethylpiperidine with the appropriate secondary amine and an acid-fixing agent, e.g. magnesium oxide or an excess of the secondary amine, in the absence of solvents, or by heating piperidine with the N-b -chlorethyl derivative of the secondary amine under similar conditions.  In examples, the following ethyl piperidines are prepared by one or both of the above methods: N-b -(cyclohexylbenzylamino)-, N - b  - (phenyl-hexahydrobenzylamino)-, N-b -(benzyl - hexahydrobenzylamino) -, N - b  - (cyclohexyl - 4 - methoxybenzylamino)-, N-b -(4 - methoxyphenyl - hexahydrobenzylamino)-, N - b  - (hexahydrobenzyl - 4 - methoxybenzylamino) -, N - b  - (cyclohexyl - phenylamino) -, N - b - (hexahydrobenzyl - 3 : 4 - dimethoxy - benzylamino)- and N-b -(hexahydrobenzyl-3 : 4-methylenedioxy - benzylamino) - ethyl piperidines; N - b  - (cyclohexyl - phenylamino) - ethyl - piperidine is also prepared by heating cyclohexylaniline with diethylene - bis - piperidinium dichloride (obtained by heating b -chlorethyl-piperidine).  Hydrochlorides of all the above products are described.  All the secondary amine starting materials except those in which both n1 and n2 are zero are obtained by catalytic reduction of the Schiffs bases resulting from the condensation of the appropriate primary amine with hexahydrobenzaldehyde or with benzaldehyde which may be substituted by R and R1.