baber/WOPTO huggingface dataset:
Patent GB-443217-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G4/258
Filed: 1934-08-22
Abstract: 443,217. Condensers. BEVAN, R. H. L., and HARRIS, G. W., H.M. Signal School, Royal Naval Barracks, Portsmouth. Aug. 22, 1934, No. 24178. [Class 38 (ii)] In parallel plate condensers, constraints are applied to the plates, so as to control the overlap . of the opposed plates in accordance with a definite relationship to temperature. Thus, the plates A, A1 are held rigidly at one edge while the opposite edges are free to slide in grooves in appropriate holders E, E1. As far as lateral expansion under heat is concerned, the overlap dimensions are constant and the expansion affecting capacity is confined to a direction at right angles, which will compensate wholly for decrease in capacity due to increased separation of plates on expansion of the supports B, B1 under heat if the spacing bars D, D are of negligible expansion. By making these bars of suitable materials or combinations of materials so as to have a positive or negative coefficient of expansion under heat, the capacity-temperature relation of the condenser may be controlled so as to compensate for temperature effects in associated inductances.
Patent GB-290089-A (GB)
Title: Methods of and apparatus for catalytically oxidising sulphur dioxide
IPC: C01B17/80
Filed: 1927-09-14
Abstract: 290,089. Fairweather, H. G. C., (Selden Co.). Sept. 14, 1927. Catalytic apparatus.-In the catalytic oxidation of sulphur dioxide at least a part of the reaction gas is passed through heat exchanging elements embedded in the catalyst, then in the reverse direction through a second series of heatexchangers surrounding the first, and then after a second reversal of direction through the catalyst itself. Additional quantities of gas may be admitted directly to the reaction space or may be mixed with the gas issuing from the heatexchangers before this is passed through the catalyst. The heat-exchangers may extend through the whole depth of the catalyst or only through part of it, or the principal layer of catalyst may be followed by a second layer through which the heat-exhan,gers do not externd separated frem the first layer by a gas space with or without baffles. Numerous embodiments of the invention are described, of which that shown in Fig. 11 is typical. The gas entering at 5 passes through the heat-exchangers 9, 11 and is mixed with cold gas from the tubes 27 before passing through the principal catalytic mass 19. Additional gas may be admitted at 14. A second uncooled layer of catalyst 29 is provided.
Patent GB-1072504-A (GB)
Title: Improvements in and relating to control-knobs
IPC: H05B1/02
Filed: 1964-06-11
Abstract: 1,072,504. Stud and socket fastenings. N. V. PHILLIPS GLOEILAMPENFABRIEKEN. June 11, 1964 [June 12, 1963], No. 24266/64. Heading E2B. [Also in Divisions F2 and H2] A rotatable control knob, particularly for an electric laundry iron temperature control element (e.g. thermostat), comprises an annular portion 1 having a reduced diameter depending cylindrical skirt 16 engaging a circular aperture in the wall 5 of a controlled mechanism housing and unequal width bayonet lugs 21, 22 engaging the underside of the wall, a closure lid 2 seated on a shoulder of the portion 1, and a spring 3 clamping the portion 1 between the wall 5 and the lid 2 to prevent inadvertent removal of the portion 1 should this be turned to align the lugs 21, 22 with corresponding entry slots 23, 24 in the wall. The portion 1 further comprises a slot 14 engaging a thermostat operating arm 4, and projections 20 engaging a projection 19 on the lid to entrain the latter with the portion 1. To assemble the knob, the spring is manually compressed and inserted in the portion 1 so that its ends 8, 9 engage slots 17, 18 provided in the inner wall of the portion 1 and extending through the skirt 16. The lid 2 is hooked by extensions 11, 12 thereon to the spring bowed central portion 10 and, with the arm 4 in its correct position for engagement with the slot 14 (e.g. an end stop and/or zero position), the portion 1 is engaged with the wall 5, the lugs 21, 22 passing through the slots 23, 24. With the arm 4 located in the slot 14 the portion 1 is turned to bring the lugs 21, 22 under the wall and the lid is downwardly pressed home to axially move the spring until its ends 8, 9 spring out through the slots 17, 18 and engage the underside of the wall. The knob, with the lugs 21, 22 and slots 23, 24 aligned, may be removed by the insertion and levering of a thin blade between the wall and the portion 1. The lid 2 and portion 1 are preferably moulded from synthetic material. The portion 1 is preferably knurled.
Patent GB-462006-A (GB)
Title: Improvements in rotary compressors, exhausters, pumps and the like
IPC: F04C18/344
Filed: 1935-08-30
Abstract: 462,006. Rotary pumps. NICHOLS, T. W. Aug. 30, 1935, Nos. 24268/35 and 6991/36. [Class 110 (ii)] A rotary pump or compressor having a slotted rotor a eccentrically arranged within a stator g, is provided with end plates c<1>, c<2>, which are attached to the rotor to strengthen the rotor segments. A packing ring k is spring-pressed against the outer periphery of each plate. Nuts d<1> and collars el secure the plates on the shaft b. The plates and rotor may be cored to permit the circulation of a cooling medium.
Patent GB-536939-A (GB)
Title: Improvements in and relating to photographic colour development
IPC: G03C7/34
Filed: 1939-08-24
Abstract: 536,939. Hydroxy-acidylamino-naphthalene derivatives. KODAK, Ltd. (Eastman Kodak Co.). Aug. 24, 1939, Nos. 24322/39, and 2705/41, divided out of 538,914. [Class 2 (iii)] [Also in Group XX] A colour development coupler for use in conjunction with an aromatic development agent has the general formulawhere Y and Z are monovalent organic substituents such as alkyl, aryl, or aralkyl, not containing solubilizing groups such as alcoholic hydroxyl or sulphonic or carboxylic acid or their derivatives. Either or both rings may be substituted by halogen atoms, which may be introduced after formation of the amide. The following examples of derivatives of 5 amino-1 naphthol are given : N-benzyl:N-α-naphthoyl ; N-benzyl:N-#-naphthoyl; 2:4-dichloro-N-benzyl: N-x-N-x-naphthoyl ; 2:4-dichloro-N-benzyl: N- α-naphthoyl: N-γ-phenyl-n-propyl:N-n-valeryl ; N-γ-phenyl-n-propyl:N-p-sec-amylbenzoyl ; N- α-phenyl-n-propyl: N-benzoyl and N-γ-phenyln-propyl: N.#. - naphthoyl. Specifications 458,664, 499,185, 500,611, 500,718, 500,826, 503,752, 503,814, 503,817, 503,818, 503,820, 503,821, 503,939, 503,940, 524,154, 524,554. 524.555, 530,685, [all in Group XX], and 531,312 are referred to.
Patent GB-360089-A (GB)
Title: Improvement in leather shaving machine
IPC: C14B1/04
Filed: 1930-08-14
Abstract: 360,089. Leather-shaving machines. WAYLAND, F., Salem, Massachusetts, U.S.A. Aug. 11, 1930, No. 24373. [Classes 31 (i) and 76.] Milling-cutters, machines with.-A machine of the kind having a rotary shaving-cutter 13 and a bed roll 14 which can be moved into operative rigid relation to the cutter e.g. by means of a toggle device 21, 22, 24, 28, 31, is provided with a positively driven pinch roll 11 which coacts with the bed roll to advance an endless apron 14a by which the work is fed. The pinch roll is mounted in adjustable bearings and is driven by a chain 40 actuated through chain and sprocket wheel gearing from the main haft 47. Also driven from the shaft 47 are the cutter 13, a brush 69 for preventing hides from sticking to the cutter, and a grinding wheel 8 splined on a shaft 7 and traversed therealong by an arm 59 carrying a shoe 61 engaging a helical groove in a rotated shaft 62. The shaft 7 is mounted in slide blocks and may be adjusted relatively to the cutter by worm gearing 54, 55, 56. A table 36 underlies the horizontal portion of the apron. The bed roll 14 may be mounted on a relatively flexible shaft 72, Fig. 3, its movement being controlled by rollers 75 on a shaft 73 parallel with shaft 72 and provided with an adjustable stop 76. A rigid guide roll 77 bears on the underside of the roll 14.
Patent GB-586099-A (GB)
Title: New mononitromononitriles
Filed: 1944-12-06
Abstract: New g -mono-nitro-mono-nitriles are prepared by reacting a primary nitro compound having the formula RCH2NO2, wherein R is a substituted or unsubstituted hydrocarbon radicle, with an unsaturated nitrile in the presence of an amount of a base which is at least equivalent to the nitro compound.  The unsaturated nitriles which are used must have an ethylenic linkage in the a  : b  or b  : d  position to the nitrile group.  In the examples: (1) a -phenylcinnamonitrile and nitroethane are condensed in the presence of piperidine to give 3-nitro-1 : 2-diphenylvaleronitrile; (2) acrylonitrile and nitroethane condensed with sodium hydroxide to g -nitrovaleronitrile; (3) 1-nitropropane and allyl cyanide with potassium hydroxide to 3-nitro-2-methyl capronitrile; (4) a -phenyl cinnamonitrile and methyl-b -nitroethyl ether with piperidine to 3-nitro-4-methoxy-1 : 2-diphenylvaleronitrile; (5) a -phenylcinnamonitrile and nitromethane with diethylamine to 3-nitro-1 : 2-diphenylbutyronitrile; (6) p-bromo-a -phenyl-cinnamonitrile and nitroethane with piperidine to 3-nitro-2-p-bromophenyl-1-phenyl valeronitrile.  Crotonitrile, cinnamonitrile, a -phenyl-p-methoxy-cinnamonitrile, phenyl-nitromethane, and p-bromophenylnitro methane are also specified as starting materials.
Patent GB-165685-A (GB)
Title: Improvements in and connected with door and the like locks
IPC: E05C9/04
Filed: 1920-08-24
Abstract: 165,685. Thomas, J. G. Aug. 24, 1920. Locking sliding latches; multiple-bolt fastenings.-The spring latch 11 of a door or safe lock is operated by a lever 29 and handle-follower 31, but is blocked against withdrawal when the bolt or bolts 10 are shot. The bolts 10 have racks engaging with toothed arcs 14 pivoted to the casing at 15a and to links 16 at 15. The links 16 are pivoted to the ends of a link 17 which can rock on the fixed pin 18. On the same pivot which connects one link 16 with the link 17 is mounted a tumbler 21 having an abutment 28, a stud 26 and a slot 23. Behind the tumbler is a ward 24, pivoted to the casing on a pin 22 which works in the tumbler-slot'23, and having a stud 27. When the correct key is inserted in the keyhole 19 and turned to the left, it first lifts the ward 24, raising its stud 27 out of the path of the tumbler-stud 26, enabling further rotation of the key to move the tumbler to the left, rocking the link 17 on its pivot and causing the links 16 to rotate the arcs 14 and shoot the bolts. The stud 27 engages behind the stud 26 of the tumbler when the ward drops, preventing unlocking motion of the tumbler till the correct key is again used. The locking position of the tumbler advances its abutment 28 into register with a shoulder 33 on the latch shank, preventing the withdrawal of the latch until the bolts are released.
Patent GB-1129853-A (GB)
Title: Improvements in or relating to hydrostatic bearing assemblies
Inventor: YOUNG ARTHUR GEORGE
IPC: F16C32/06
Filed: 1966-06-02
Abstract: 1,129,853. Bearings. MACHINE TOOL INDUSTRY RESEARCH. 21 July, 1967 [2 June, 1966], No. 24568/66. Heading F2A. [Also in Division B3] A fluid radial and thrust bearing, Figs. 1 and 2, has a bore A which receives a shaft F therein; is provided with four equi-spaced pockets C which are supplied with pressurized fluid through ducts D, each of which has a restrictor E, mounted therein; and is provided with side faces I, each having an annular pocket H therein. In use pressurized fluid flows from the pockets C and through the clearance between the bearing and the shaft into each annular pocket H which, in co-operation with a respective collar G mounted on the shaft, forms a thrust bearing. In modifications the two collars G are replaced by one collar J, Fig. 3 (not shown), and the bearing B is provided with inwardly-directed flanges K which co-operate with the side faces of the collar J; the annular pockets are provided in the collars and not in the bearing; a pair of spaced-apart bearings B, Fig. 5 (not shown) are located between a pair of collars G; annular pockets are provided in both the bear. ing and the collar; and the four equi-spaced pockets are provided in a non-rotary shaft instead of in the bearing.
Patent GB-1374192-A (GB)
Title: Oil well tool positioning and coupling starting apparatus
IPC: E21B19/18
Filed: 1972-05-25
Abstract: 1374192 Lever jacks H R HAWKINS 25 May 1972 24711/72 Heading B8J [Also in Division El] Apparatus for the rotational coupling of a lower tool (a bit 17) to an upper tool (a drill string 14) comprises a freely rotatable table 20 for supporting the lower tool for rotation about a vertical axis, and means 25 for raising the table vertically. The mean 25 comprises a lever 26 having a pivot tube 29. The table rotates about a member 51 pivoted about a horizontal axis at the end 27 of the lever. The bit is located by three adjustable arms 65 and a removable pin 61. The apparatus may be used for uncoupling.
Patent GB-487392-A (GB)
Title: Improvements in or relating to the manufacture of reinforced asbestos or asbestos cement sheets, blocks and the like
IPC: B28B1/52
Filed: 1936-09-11
Abstract: 487,392. Compound sheet materials. N.B. ASBESTOS HOLDING CO., Ltd. Sept. 11, 1936, No. 24824. Void. Convention date, July 17. [Class 140] A fabric reinforcement is applied to one or both sides of an asbestos or asbestos-cement sheet, the fabric having been filled with chalk, asbestos powder, cement, pumice or other filler before application to the sheet. The fabric and the sheet may be united while moist, a vacuum being applied to assist the union. The fabric may be fireproofed, and the compound sheet may be dipped in sodium silicate. The moist filled fabric may be drawn over a roller l applying an adhesive comprising silicate and bicarbonate of soda, and through the press rolls o, p with the asbestos sheet u, and the compound sheet may be matured under pressure, dried, and treated with sodium silicate. The layers may be corrugated.
Patent GB-883246-A (GB)
Title: Signal generating circuits
IPC: H02M7/162
Filed: 1957-08-07
Abstract: 883,246. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., EASTOP, R. H., and WALKER, A. H. B. Aug. 7, 1958 [Aug. 7, 1957 ; Nov. 5, 1957], Nos. 24865/57 and 34456/57. Class 38 (2). A circuit for generating a waveform to control a current converter comprises (Fig. 1, Provisional Specification 24865/57) a transistor 6 whose base potential depends on the charging of a condenser 4 and a control voltage Vc the compound waveform being shown as 17, Fig. 2a. The transistor 6 is poled to conduct on negative half cycles of the applied A.C. but is blocked by the potential on the base until the waveform goes negative at the instant # when the transistor 6 conducts through a resistor 7. The transistor 6 conducts during the period #-360 degrees. A second transistor 11, also poled to conduct during the negative half cycle, has its base connected to the collector of transistor 6 through a resistor 8 so that conduction of 6 causes transistor 11 to block, the transistor 11 conducting through a load 10 during the period 180-# shown shaded in Fig. 2b. A feedback resistor 9 is connected to the base of transistor 6. A further stage comprising an additional transistor may be provided in order to give conduction for the period 180 degrees - 0, and the final transistor stage may be supplied with D.C. to give a square waveform output. The instant # is varied by varying the control voltage Vc. In Fig. 2 of Provisional Specification 34456/57 a controllable rectifier 42 feeding a load 43 from a supply transformer 44 is controlled by a control circuit as above 15 together with an additional circuit 29, 30, 32, 33. During negative half-cycles when the emitter collected circuit of 42 does not conduct it is necessary to keep the base at a high positive voltage to prevent base/collector current flow. This voltage is provided by the circuit 29 ... 33, the waveform being given in Fig. 3c. The output of the circuit 15 is given by 3d, the controllable portion 37 controlling the conduction. Modifications are disclosed showing bi-phase and three-phase bridge rectifier arrangements.
Patent GB-686663-A (GB)
Title: Improvements in or relating to the wall structures of full-size or model log houses or huts
IPC: E04B2/70
Filed: 1948-09-23
Abstract: 686,663. Walls. STEINKOGLER, C. A. Sept. 23, 1948 [May 3, 1946], No. 24888/50. Class 20(iv) [Also in Group XV] The walls of a hut are formed of rectangular timbers 1, 2 engaging edgewise by tongues and grooves 4, 3 and at the corners 'by end face tongues 6 engaging vertical grooves 5 on the inner faces near the ends of the timbers, the arrangement of the tongue 6 and groove 5 in each timber layer being staggered or displaced by 90 degrees with respect to that of the adjacent timber layer. The timbers 2 provided with the tongues 6 are of less width than the timbers 1, thus giving a recessed appearance to the outside of the walls and providing heat insulating cavities between the wall and an inner wall lining.
Patent GB-311984-A (GB)
Title: Improvements in or relating to salvage cars and cranes therefor
IPC: B60P3/12
Filed: 1928-07-21
Abstract: 311,984. Lake, A. E. July 21, 1928. Couplings for tractors.-A single structural unit adapted to be fitted to the chassis of a motor lorry for raising and towing a disabled vehicle comprises a luffing jib crane constructed and arranged so as not to interfere with the use of the vehicle for transport. When towing a disabled vehicle, the crane hook is engaged with the tail-board 64, or with a steadying bar 65 hinged to the tail-board and supported by chains 67, the tail-board being held upright against stops 69. The bar 65 is normally held against the tailboard by a catch 68.
Patent GB-594414-A (GB)
Title: Combined feed mechanism and weighing device
IPC: G01G13/02
Filed: 1944-12-12
Abstract: 594,414. Weighing-apparatus. VALERINO, W. P., and MENENDEZ, J. A. Dec. 12, 1944, No. 24927. [Class 143] [Also in Group XXXVII] An electric motor-driven coffee or like grinder delivers the ground coffee to the scale-pan of a pendulum-weight weighing machine the movement of which closes a limit switch when a preselected weight has been delivered and thus energises a relay which breaks the circuit to the motor and stops it. A hopper 1 contains the coffee which is ground by a pulverising mechanism 2 (not described) and discharged through a tube 5 and an inverted funnel 6 on to a plate 13 which serves as the scale-pan for the weighing machine. As the plate moves down under the weight of the ground coffee it rotates a gear wheel 24 on a shaft 25 containing a pointer 26 used with a scale 27 to denote the weight, and also moves a contact 30 contained in a box 29 connected to it. This contact eventually engages a claw-shaped stop 32, thus energising a relay 38 which attracts an armature 39, deenergising another relay 43 and releasing an armature 44 which stops the motor. The curvature of the stop 32 is such that by turning a pointer 34 connected to it the motor will stop at a weight preselected by moving the pointer on a scale 35. The motor is started by pressing a button 49 against the action of a spring 50. This also energises the relay 43 which attracts the armature 44 and maintains the supply to the motor when the button 49 is released.
Patent GB-155935-A (GB)
Title: An improved shock absorber for the handle bars of motor and other cycles
IPC: B62K21/14
Filed: 1919-10-13
Abstract: 155,935. MacLean, J. P. Oct. 13, 1919. Handle-bars. - The handle-bars 3 of motor and other cycles are pivotally mounted at 4, and a spring resistance, formed of a number of component parts acting successively, resists movement in one direction, while a part only of the spring resistance comes into action to resist movement in the opposite direction. The bars 3 are linked or connected by gearing to a rod 9 provided with a flange 10, a loose disc 11, and a washer and nut 13, strong and weak springs 14, 15 being disposed as shown in the steering-stem 1, which is provided with a ledge 18 and with a sleeve 15<1> having an inturned flange 17. Specification 144,752, [Class 108 (iii), Springs &c.], is referred to.
Patent GB-247254-A (GB)
Title: Improvements relating to electric resistance furnaces
IPC: H05B3/00
Filed: 1925-07-20
Abstract: 247,254. Taylor, G. E., and Electric Furnace Co., Ltd. July 20, 1925. Furnace details. - In a three-phase resistance furnace the resistances 13, 14, 15 are mesh connected until the maxim.um temperature is attained and are then star connected to maintain this temperature, the furnace being designed so that the heat developed with the latter connection is approximately equal to radiation losses. The change over is effected bv a switch A. The Specification states that in a furnace operating at 900‹ C with a heat insulating layer of kieselguhr bricks 2¢ inches thick radiation losses are 2 watts per square inch of radiating surface. In a two-phase furnace the resistors 20, 21 are connected across the individual phases 17, 18 and 19. 19 until the maximum temperature is attained and are then connected across the two phases in series by opening a switch 16, the furnace being so designed that the heat developed with the latter connection is approximtely equal to radiation losses.
Patent GB-317826-A (GB)
Title: Improvements in or relating to radio direction finding
IPC: G01S1/02
Filed: 1929-08-16
Abstract: 317,826. Telefunken Ges. f³r Drahtlose Telegraphie. Aug. 23, 1928, [Convention date]. Synchronism indicators.-A luminous discharge tube L, or other indicating device, rotating with a disc M, in synchronism with a wireless transmitter sending out a rotating beam, glows when signals from the latter reach an aerial A which energizes it through receivers and amplifiers V, and indicates the position of the transmitter with reference to a datum line on the chart K. The transmitter may furnish the datum line also by sending out a non-directional radiation once per revolution when the directional beam is passing a specified direction, say north. The rotation speed of transmitter and receiving indicator may be fast enough to give a continuous impression at the receiver. Phase-shifting means may be provided to shift the received datum line to a definite mark on the scale K, and synchronism may be checked by keeping the received datum line stationary.
Patent GB-186072-A (GB)
Title: Improvements in chain hoists, pulley blocks, winches, and the like
IPC: B66D3/12
Filed: 1922-09-16
Abstract: 186,072. Quick, A. A. Sept. 16, 1921, [Convention date]. Variable - speed gearing for pulley hoists, winches, &c. of the type embodying a nutating or oscillating load chain wheel driven by epicyclic gearing. Fig. 2 shows the improvements applied to a pulley - hoist in which the rotation of a cranked shaft causes the nutating wheel 25 to rotate by gearing with the fixed bevel ring 23, the opposite end wall of the casing forming a rolling guide for the plain end of the chain wheel during the rotation. The nutating wheel 25 is mounted on ball bearings 22<1> on the inclined portion of the central shaft. A twospeed gear may be provided by fitting teeth at both ends of the chain wheel, gearing simultaneously with two ratchet rings having different numbers of teeth. A sliding bolt can be manipulated to fix either of the rings alternatively or to leave both free. In the case of a suspended pulley-hoist, two equal non-rotating bevel rings gear simultaneously with opposite ends of the chain wheel to give a balanced one-speed drive. The two rings are mounted resiliently to yield to inequalities in the teeth, by connecting them to a common pivoted equalising lever, which allows them to rock slightly. A two-armed reversible pawl is fitted to the self-sustaining gear in this construction and is manipulated to effect the change-over by a spring rod actuated by a pull cord.