baber/WOPTO huggingface dataset:
Patent GB-450679-A (GB)
Title: Improvements in outlet fittings for underfloor electric conduits
IPC: H02G3/18
Filed: 1934-12-17
Abstract: 450,679. Conduit fittings ; plug couplings. SARGEANT, E. B., 95, Inglewood Drive, Mt. Lebanon Station, and ROBERTSON CO.. H. H., Grant Building, 3rd Avenue, both in Pittsburg, U.S.A. Dec. 17, 1934, No. 36212. [Classes 36 and 38 (i)] An outlet fitting 15 for a sheet metal conduit 13, Figs. 1 and 3, comprises a hollow pillar 15 which stands over an aperture in the wall of the conduit and is secured thereto by a base member 20 having flanges 21 which are welded to the conduit, the fitting having a deflecting member 18 which extends into the conduit for deflecting a conductor from the conduit into the fitting. An outlet aperture 16 is provided in the pillar 15. The conduits 13 may be formed by hollow beams of a floor 10, Fig. 1, consisting of superposed channelled metal plates 11, 12. A curved plate 19, Fig. 3, of the pillar faces the deflecting member and provides a smooth surface over which the conductors may be pulled without chafing. In a modified construction, the pillar has a vertical partition which is provided at its lower end with oppositely directed deflecting members, so that conductors may enter the fitting from opposite ends of the conduit.
Patent GB-362664-A (GB)
Abstract: 362,664. Interrupters. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Dec. 5, 1930, No. 36675. Convention date, Jan. 3. [Class 38 (v).] Timing devices.-In order to prevent the adjustable cam casing 3 of an ignition interrupter from being moved by vibration from a position to which it has been moved, such as the fully advanced or fully retarded position, if, for example, the operating rod has been detached, the blade spring 8 which secures the cover 4 of the interrupter in position is formed with a projection 13 adapted to snap into recesses 10, 11 in the cover corresponding to one or other of these positions, the cover having a recess 5 formed in its flanged periphery which engages a pin 6 on the cam casing to prevent relative rotation between the cover and cam casing. The adjustment of the cam casing is effected through an arm 14 attached to a spring band clamped around the casing and the angular motion of the casing 3 is limited by a pin 15 projecting from the cam ring into a slot 16 formed in the baseplate 1. The spring arm 8 is positioned against the interrupter cover by a central stamped up projection 9 on the latter engaging a similar recess formed in the holding spring. A second reinforcing spring 8a is also provided.
Patent GB-1483933-A (GB)
Title: Dowelling
IPC: F16B12/24
Filed: 1975-08-18
Abstract: 1483933 Dowelling PARNALL & SONS Ltd 18 Aug 1975 [17 Aug 1974] 36295/74 Heading F2H [Also in Division B3] In a method of dowelling together two members 10, 11, e.g. of chipboard, a tubular dowel 12 having at least one open end is driven into the member 10 by combined rotation and axial pressure so that the open end 15 cuts its way into the member 10, the driving being continued to a predetermined depth, to leave the other end 14 of the dowel protruding for subsequent engagement in a bore 13 in the member 11. The core 16 of wood left in the end 15 of the dowel helps to stabilize the dowel. The dowel is rotated at between 500 and 1500 r.p.m. during driving. The leading end 15 may be bevelled, notched or toothed to improve cutting, or may have longitudinal slits (22) (Fig. 6, not shown). The rear end may be internally threaded to receive a threaded bolt rotated by a reversible motor of the type used for screw tapping, or may have slots (21) (Fig. 5, not shown) to receive a screwdriver bit type of insertion tool. Alternatively the rear end 14 can be gripped by a chuck or collet for driving. The rear portion 14 of the dowel may be of greater external diameter than the front portion 15, to provide a shoulder to positively limit the depth of penetration of the dowel into the member 10.
Patent GB-159170-A (GB)
Title: Improvements relating to mercury-vapour rectifiers
IPC: H01J13/02
Filed: 1920-12-29
Abstract: 159,170. Nienhold, J. Feb. 14, 1920, [Convention date]. Low-pressure metallic-vapour apparatus. - A mercury-vapour rectifier has a cathode consisting of an alloy of mercury with an alkali metal, alkali metal alloy, thallium, gallium-aluminium, cadmium, or bismuth, and the tube contains a rare gas such as helium, neon, argon, krypton, or xenon, or a mixture of. these gases, at a pressure of 0.1 to 0.8 mm. of mercury. The alloy is solid when the tube is cold. Starting is effected by raising the potential. The cathode alloy may consist of mercury with 30 per cent of the total volume of alkali metal, alkali metal alloy, or gallium-aluminium, or 30 per cent by weight of thallium, or 10 per cent by weight of cadmium or 5 per cent by weight of bismuth.
Patent GB-830221-A (GB)
Title: Improvements in or relating to electric torches
IPC: F21V19/02
Filed: 1956-11-28
Abstract: 830,221. Electric battery lamus. NING, T. Oct. 23, 1957 [Nov. 28, 1956], No. 36394/56. Class 39(2) The reflector 5 in the head 4 of an electric battery lamp has a slot passing through the apex and an arm 13 is pivotally mounted on the head and carries two or more bulbs in threaded holders 14 so that a selected bulb can be brought into operative position, where it is in electric connection with one pole of the battery. For this purpose, the head may carry an insulating disc 16 supporting a stud in contact with the central pole of the battery and bearing a spring contact 17 to engage the centre contact of the bulb. The arm may be moved into a position where no bulb engages the contact 17, thereby avoiding the necessity for the separate switch. The outer electrode 2 of the battery may be threaded at the top end to receive the threaded stem 7 of the head 4 whereby a separate battery casing is rendered unnecessary. The power of the bulbs used may be different or the bulbs may be of different colours.
Patent GB-954221-A (GB)
Title: Improvements in yarn clamping and severing mechanism for knitting machines
IPC: D04B15/60
Filed: 1960-10-24
Abstract: 954,221. Knitting machines. C. W. PERRY, R. B. CRAWFORD, S. M. ORR, and R. J. FROEBER, [trading as GORDON CO.]. Oct. 24, 1960 [Nov. 2, 1959], No. 36431/60. Heading D1C. In a rotary cylinder circular knitting machine with main and auxiliary knitting stations 17, 20, individual yarn cutting means and yarn clamping means are provided for each knitting station which are both released by the same actuating device. The yarn cutting means comprise cutting elements 36 on a fixed support member 27 co-operating with sharp-edged teeth 35 on an annulus 32 rotating with the needle cylinder. The yarn clamping means comprise clamping members 90, 97 co-operating with restraining elements 85, 96 for the knitting stations 17 and 20 respectively. The member 90 is adapted to be raised by a pneumatic cylinder 92 and member 97 is actuated from member 90 by a lever 101. Guide fingers 21 for the yarn at both main and auxiliary stations 17, 20 are adapted to be retracted to move the yarns from knitting position as required by means not shown. When such a guide finger is retracted the yarn is carried down by the last needle to knit this yarn to engage a tooth of the annulus 32. The yarn is then carried around by the needles and annulus to pass over the respective restraining element 85 or 96 to be engaged under the clamping member 90 or 97 and then to be cut by the severing element 36 which is moved by a cam on a pattern drum to engage the annulus 32. When a yarn is tb be returned to knitting position the relevant guide finger is moved to its active position and the yarn is drawn into engagement with the annulus 32 by the first needle to knit the yarn and the yarn is drawn beneath the restraining element whilst being held above by the clamping member. The yarn is then again cut by the severing element and the waste length is released from the clamping member, by actuation of the pneumatic cylinder 92, to be sucked away into a receptacle 116. Specifications 842, 501 and 856, 574 are referred to.
Patent GB-426283-A (GB)
Title: Improvements in water-colour boxes
IPC: B44D3/04
Filed: 1933-12-28
Abstract: 426,283. Artists' colour boxes. BADCOCK, I. B., Fysh House, Bures, Suffolk. Dec. 28, 1933, No. 36461. [Class 11] A water-colour box comprises palette lids A, B, Fig. 1, of an unbreakable white material, connected to a box-portion comprising compartments C, D for brushes and colour-pans, and provided with a brushholder E, Fig. 4, with a graduated slot adapted to hold brushes of various sizes and protect their points. The holder E may be removed from its housing slots so as not to interfere with the thumb-hole K. The lids A, B are unpolished on the inner side and have rounded corners. The colour-pans are held in the compartment D by the wire frame F, Fig. 3. The arms of the frame slide through holes in the end wall of the box and the outturned ends of the arms engage in holes H in the sides, but may be pressed in by aid of finger-pieces I, so that the frame can be slid outwards to release the pans for removal or interchange. The frame and hinge-pins for the lid are of rustless metal. According to the Provisional Specification, the two palette lids slide on the top and bottom of the box, and the colour-pan compartment has permanent top flanges to retain the pans, but has an opening through the end of the box which can be closed by a pivoted shutter.
Patent GB-840459-A (GB)
Title: Esterification of pyridine carboxylic acids
Filed: 1957-11-22
Abstract: Esters of pyridine carboxylic acids are prepared by reacting a pyridine carboxylic acid with an aliphatic alcohol containing at least 5 carbon atoms in the absence of a catalyst by heating under reflux at a pot temperature of at least 100 DEG  C. and at normal atmospheric pressure with continuous removal of the water formed from the reaction mixture by azeotropic distillation with a solvent which has a lower boiling point than the aliphatic alcohol employed, continuing the reaction until substantially no free pyridine carboxylic acid remains, distilling any unreacted aliphatic alcohol and remaining solvent from the resulting reaction mixture, and recovering the desired pyridine carboxylic acid ester from the residue.  About 5 mols. of alcohol may be used per mol. of acid.  The solvent may be benzene, toluene, xylene or cyclohexane.  The solvent may be separated from the azeotrope and returned to the reaction. Examples describe the preparation of n-hexyl, ethylbutyl, ethylhexyl and n-octyl nicotinates.
Patent GB-412272-A (GB)
Title: Improvements in or relating to electro magnets for alternating current circuits
IPC: H01F7/08
Filed: 1932-12-24
Abstract: 412,272. Electromagnets. HOLME & CO. (1931), Ltd., E., Moss Lane, Altrincham, Cheshire, and FAWCETT, R. H., Alrae, Rosslyn Road, Firswood, Chorlton-cum-Hardy, Manchester. Dec. 24, 1932, No. 36588. [Class 35.] An alternating-current electromagnet of the type provided with a direct-current holding-on coil, the alternating current being switched off after the armature has been attracted, is so arranged that the direct-current coil is energized as soon as the alternating-current coil. Fig. 6 shows a circuit for such an arrangement. The direct-current coil g<1> is connected across the alternating-current leads by a bridge-connection g of known type, including rectifiers as shown. The alternating-current coil h is cut out after the armature has been attracted by a switch i, and a resistance w may be put in series with the coil g<1> at the same time by a switch w'. Other forms of circuit are described. Fig. 7 shows a change-over switch equipped with the circuit described. On a square spindle 17 are mounted arms 18 carrying the main contacts and arms carrying contacts 21, 22 forming the switches w<1> and i of Fig. 6. Arms 27 carry the armatures of magnets 30, 31 corresponding to the coils h and g of Fig. 6.
Patent GB-1243233-A (GB)
Title: Brush shearing machine
IPC: A46B13/00
Filed: 1968-08-01
Abstract: 1,243,233. Trimming brushes. RANK XEROX Ltd. 1 Aug., 1968 [4 Aug., 1967], No. 36777/68. Heading A4K. In trimming apparatus for a cylindrical brush 9 of pile fabric or fur, a series of clipper heads 50, of the kind in which pairs of comb teeth 61, 62 are relatively oscillated to effect cutting, are mounted on a guide 76, 91, which is reciprocated longitudinally, as long as electric motor (MOT-2) is energized. The comb teeth 62 are oscillated, by a motor (MOT-3), through a flexible drive (70), so that half of them are in the opposite phase to the other half. The positions of heads 50 and the brush, which is rotated rapidly during trimming, are controlled by hydraulic means, actuated by solenoid-operated valves. Two brushes are held in a frame (13), which is swingable back and forth through 180 degrees, to bring one brush 9 into a working position opposite clipper heads 50, while the other is brought into a loading and unloading position. The frame 13 is swung by means of a hydraulic drive (25, Fig. 6, not shown) under the control of a valve, responsive to solenoids (SOL-1 and SOL-2, Fig. 7, not shown). When the brushes reach their positions, either limit switch (LSI or LS2) is closed by arm (122) pressing on button (123 or 124). An electromagnetic clutch (51), an electromagnetic brake (58), a timer and a solenoid (SOL-3) are energized through the limit switch (LS1 or LS2). The solenoid opens a valve to extend the hydraulic ram 103. This tilts the table 96 to bring the heads 50 into contact with the brush, which is rotated by a motor (MOT-1) through the electromagnetic clutch (51). The table 96 continues to tilt about pivots 101 until stop 105 contacts base frame 113. When the timer times out, contacts (ITD-3) are opened to de-energize the clutch and brake and solenoid (SOL-3). The heads 50 are retracted by spring-operated dash-pot 107, until stop 106 contacts base 110. A further timeroperated switch (ITD-2) energizes solenoid (SOL-2) to operate the valve of the hydraulic drive (25), so as to swing frame (13) back into its original position. As the brushes leave their positions, both limit switches (LS-1 and LS-2) are open to leave the timer on open circuit while it re-sets itself. A suction head 120 removes the clippings and helps to straighten the brush filaments, in the cutting zone.
Patent GB-302317-A (GB)
Title: Improvements in fire and water tubes
IPC: F22B37/04
Filed: 1928-12-13
Abstract: 302,317. Peters, M. Dec. 14, 1927, [Convention date]. Drawings to Specification. Materials for making.-The water or fire tubes of steam boilers are made seamless of carbon steel containing chromium, nickel and molybdenum. The Specification as open to inspection under Sect. 91 (3) (a) mentions the proportions 0.2-10 per cent chromium. 0.2-6 per cent nickel and 0.2-2 per cent molybdenum, two or more of the metals being employed together in making boiler tubes. This subject-matter does not appear in the Specification as accepted.
Patent GB-518058-A (GB)
Title: Improvements in rotary engines and compressors
IPC: F04C18/18
Filed: 1938-12-19
Abstract: 518,058. Rotary engines. TUMEY, C. M. Dec. 19, 1938, No. 36964. [Class 110 (ii)] An engine or compressor comprises rotors 10, 12, meshing together by means of teeth 14, and having a number of larger teeth 15 which form pistons in annular working chambers 11, 13. Two rotors 12, 26, Fig. 5, may be arranged on one shaft 21, and two 10, 25, on another shaft 18. The rotors are provided with labyrinth packing rings 19, 20, and further packing 47. Inlet and exhaust ports 30, 29 are provided for each pair of rotors. The working-fluid entering the port 30 may be controlled by a piston in a cylinder 35, cam-operated from the shaft 21 to periodically cut off the fluid, which may be steam. In a modification, two rotors have each, two or more sets of teeth 15 around their peripheries, and their shafts are coupled by external gearing. The valve control means for the working - fluid is dispensed with in this arrangement. The engine may be modified to act as a supercharger.
Patent GB-1517925-A (GB)
Title: Storage field effect transistors
IPC: G11C17/00
Filed: 1975-09-09
Abstract: 1517925 Storage FETs SIEMENS AG 9 Sept 1975 [20 Sept 1974 12 Feb 1975] 36979/75 Heading H1K In an N-channel field effect transistor for the non-volatile storage of information comprising a floating insulated gate located over the channel between source and drain region formed in a substrate and a control gate capacitively coupled to it, and so constructed that it can be programmed by negatively charging the floating gate by channel electron injection the capacitance between the two gates is substantially, e.g. 5 times greater than that between the floating gate and the substrate, thereby allowing the use of lower operating voltages and reducing the influence of source and drain voltage on the floating gate. The desired capacitance ratio may be achieved by providing both gates with large overlapping extensions laterally of the channel or by disposing the control gate over such an extension of the floating gate. The transistor may be of the enhancement or depletion type. To facilitate programming the channel may be necked or underlie a thickened section of gate insulation adjacent the drain to provide an acceleration zone. The charge may be erased by irradiation with ultraviolet or X-rays, by avalanching of the source or drain junction or by channel injection. It is however preferred to erase using Fowler- Nordheim tunnelling and/or the gate surface effect. To allow the charge separation necessary for gate surface effect the floating gate should be at least 10,000 Š thick and consist of P-type polycrystalline silicon. Both effects are optimized at the expense of other mechanism involving greater heat dissipation, such as source or drain avalanching, by using silicon dioxide between 400 and 1200 Š thick as gate insulation, to so reduce heat dissipation that if desired all the transistors of an integrated matrix may be simultaneously erased without damage. The erasing voltage, direct for Fowler-Nordheim tunnelling and/or in the form of a train of steepfronted pulses or lower amplitude for gate surface effect, is supplied between the control gate and the source, drain or substrate region with the other regions preferably left floating and the control gate generally earthed. Undesirable contamination of the gate insulation can be reduced if the charging and erasing currents are arranged to pass through different parts of it, e.g. adjacent the source and drain respectively.
Patent GB-878552-A (GB)
Title: Improvements in or relating to power transmission systems
Inventor: LEAVER RALPH HOWARTH
IPC: F16H61/14
Filed: 1957-11-27
Abstract: 878,552. Change-speed and clutch control. ROLLS-ROYCE Ltd. Oct. 29, 1958 [Nov. 27, 1957], No. 37055/57. Class 80 (2). In a vehicle transmission of the type comprising a torque converter, a first clutch to connect the impeller and the converter input shaft, a second clutch for direct drive, and an over-running clutch between the turbine and power output shaft, control means is provided to ensure that in changing to direct drive from drive through the converter the second clutch is first engaged and the first clutch is disengaged only after the second clutch is fully disengaged. In the rail vehicle transmission shown the input shaft 10 may be coupled to the output shaft 11 through the converter 18 and a free-wheel device 15 by a clutch 13, or directly coupled thereto by a second clutch 14. The clutches are of the hydraulically operated disc type, the pressure liquid supply from inlet 30 to the clutch supply pipes 23, 25 being controlled by a piston valve 35, which may be operated manually or, as shown, by pneumatic rams 41, 42, 43 acting in series, the air supply from a cylinder 44 being controlled by solenoid shuttle valves 45, 47 operated by a hand switch 50a. In the neutral position shown a land 35c of the piston valve cuts off both pipes 23, 25 from supply inlet 30. Upon moving switch arm 50a to position O 1  valve 45 admits air through a pipe 46 to ram 41, which moves land 35c to place inlet 30 in communication with pipe 23 for engagement of converter drive clutch 13. For direct drive switch arm 50a is moved to position O 2  so that air is admitted through pipe 48 and opening 52 to ram 42, land 35c then placing inlet 30 in communication with both pipes 23, 25, so that both clutches are engaged. At the same time air from pipe 48 leaks through an orifice 57 in a vent valve 56, and passes through opening 55 to act upon the third ram 43 which, after a predetermined time interval, moves so that a second land 35b cuts off pipe 23 from inlet 30 to disengage the converter drive clutch 13. Upon moving contact 50a from position O 2  to O 1  chamber 51 is vented and air supplied through pipe 46 to ram 41; valve 56 opens to allow escape of air from chamber 54 and a spring 36 moves piston valve 35 and rams 42, 43 to the right to restore the converter drive.
Patent GB-1066713-A (GB)
Title: Hydraulic apparatus for tensioning and anchoring wires, rods and similar members
Inventor: DRYSDALE JOHN
IPC: E04G21/12
Filed: 1962-10-02
Abstract: 1,066,713. Tensioning devices. CABLE COVERS Ltd. Jan. 1, 1964 [Oct. 2, 1962; Aug. 14, 1963], Nos. 37245/62 and 32077/63. Heading F2G. An hydraulically-actuated jack for tensioning wire ropes &c. employed in a pre-stressed structure comprises a compound tube 1 located within a compound tube 2 surrounded by a main member 3, the annular channels 1A, 2A between the pairs of tubes being interconnected by ports 19, an internally, tapered gripping barrel 14 secured to the tube 1 and a cooperating longitudinally slotted barrel 15, and a nose 10, formed with a recess 9, screwed into a locking-off cylinder 6. A cap 11 connected to the tube 1 has inlet ports 20. A wire rope is passed through the tube 1 and fluid under pressure is passed to the rear of a piston 21 to  move rearwardly the barrel 14 which causes  the barrel 15 to grip and tension the rope, the loading being indicated by a load-sensitive device 18 which, through a switch, operates a solenoid or other means applied to a control valve. Delivery of the fluid is transferred to a second inlet port and the fluid passes through the passages 1A, 2A to the collar 8A of a piston 8 which is moved forwardly against the pressure of a spring to force wedges positioned in the recess 9 into gripping engagement with the finally tensioned wire whereafter the release of pressure from the piston 21 allows the members 1, 3 and barrel 14 to move forwardly to the original positions thereof and the cap 16 to move the barrel 15 to release the wire.
Patent GB-1060927-A (GB)
Title: Feeding and delivery apparatus for egg washing machines
Inventor: WILLSEY CHARLES HOWARD
IPC: A01K43/00
Filed: 1965-09-01
Abstract: 1,060,927. Cleaning eggs. NORRIS GRAIN CO. Sept. 1, 1965, No. 37289/65. Heading A1M. [Also in Division B8] In egg-washing apparatus in which the eggs are carried through a washing apparatus on a conveyer 11 comprising parallel roller assemblies 20 extending between side chains 21, 21<SP>1</SP>, the eggs are fed into the apparatus arranged in rows on trays (15) carried on a parallel conveyer (10) and are lifted on to the conveyer 11 by means of egg-gripping loops 55, 56 opened and closed under the control of a cam and linkage arrangement. The frame 41 carrying the gripper assembly 50 is swung over the conveyer 11 by means of a rock shaft (47) oscillated to move the frame through 180 degrees by a linkage and ratchet mechanism operated by a motor. A stacking mechanism is provided for stacking the trays (15). After passing through the washing apparatus the eggs are transferred to further trays (15) located on the conveyer (10) by means of an egg-gripper assembly similar to assembly 50.