baber/WOPTO huggingface dataset:
Patent GB-573447-A (GB)
Title: Improvements in ball or roller bearings
IPC: F16C33/60
Filed: 1943-12-10
Abstract: 573,447. Ball and roller bearings. DE HAVILLAND AIRCRAFT CO., Ltd., WARDE, R. H., and BROWN, J. A. Dec. 10, 1943, No. 20722. [Class 12 (i)] A ball or roller race for thrust bearings subject to radial loads is divided into two parts transversely to the shaft axis, each part being divided into segments with staggered joints and the two parts being locked together against transverse movement. The locking means comprises dowels parallel to the shaft axis or interfitting ridges and grooves on the mating faces of the two parts, the ridges being concentric or radial. Each part may be formed in one piece with incisions which nearly sever it, being readily broken into segments just prior to assembly. Fig. 1 shows an airscrew hub wherein the blade shank 16 rotates on an arm 18 of a spider 20 mounted on the shaft 22, the shank having a shoulder 26 which engages the race 28 of a roller thrust bearing, the other race 30 engaging a flange 32 on the hub 34. The race 28 consists of two parts such as 38, 40, Fig. 14, each with incisions 46, the load at these points being relieved by easing the race surface as at 48, and the ridges being cut away as at 68. Where a roller cage is employed, this is also made in segments, together with the race 30 to facilitate assembly on the shank after formation of the shoulder 26.
Patent GB-791139-A (GB)
Title: Improvements relating to electric batteries
IPC: H01M50/528
Filed: 1955-07-18
Abstract: 791,139. Batteries. MOLL, P. J. July 18, 1955 [July 16, 1954; Jan. 19, 1955; April 28, 1955; July 7, 1955], No. 20749/55. Class 53. In a storage battery, the vent plug seals the outer end of a tubular wall surrounding the filling opening and the vent in the plug cornmunicates with a passage leading outwardly to beyond one side of the battery. In the form shown in Fig. 1, the tubular wall 2 forms part of the cover 1 of the battery and the vent plug 8  seals the top and bottom of the wall by means of rings 12, 13. Gas vents 11 in the vent plug communicate, via passages 4, 6, with a venting connection 15. The tubular wall may also be formed (a) integral with a hood member extending above the cover (b) integral with a covering hood when the cover is omitted, or (c) part integral with the cover and part integral with the hood as shown in Fig. 12. In this form the plug 8 also retains the hood 32 in position. An acid- and gas-receiving bladder may be fitted to the end of the vent passage. The bladder can be filled with a filtering or neutralizing agent and may be fitted with a valve through which the gas is vented. Instead of a bladder a chamber 57 (Fig. 16) filled with filtering agent 56 can be secured to the battery casing. The gas exit tube 58 passing into the filtering agent has a length slightly greater than the height of the acid level in the battery if the battery is inverted. A vent plug as shown in Fig. 20, which is screwed into the top of the stack and which has a conical portion 78 sealing in the conical filling opening may be used. The vent passages from each filling opening can be interconnected by polystyrene hose and saddle type clamping terminals 63, Fig. 2, can be used to interconnect the cells, the terminals having voltage indicating pins 67.
Patent GB-1024596-A (GB)
Title: Improvements in or relating to master cylinders
IPC: B60T11/26
Filed: 1964-05-20
Abstract: 1,024,596. Master cylinders for brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINENUND ARMATURENFABRIK KOMM GES.]. May 20, 1964 [May 29, 1963], No. 20800/64. Headings F2E and F2F. A master cylinder 1 has a top-mounted plastics reservoir 2 secured to it by a screw 6 accessible through the reservoir aperture 4 and extending through the reservoir bottom 8; the reservoir being connected to the master cylinder through a formed-on nipple in fluidtight engagement with the cylinder. The screw 6 may also extend through a nipple formed on the reservoir, Fig. 2 (not shown), illustrates a reservoir with two compartments and two passages connecting with the master cylinder, the fastening screw being formed with a pressure medium passage and extending through one of them. Rubber gaskets are used to obtain seals around the passages and the screw.
Patent GB-1091639-A (GB)
Title: Apparatus for pressing cooked organic substances
Inventor: TAEUBER GOTTFRIED
IPC: A23K1/10
Filed: 1965-05-17
Abstract: 1,091,639. Extrusion press and vibrating screen filter. MASCHINEN-UND APPARATEBAU STRALSUND. VEB. May 17, 1965. No. 20839/65. Heading B1D. Cooked fish waste is pressed in a rotaryscrew extrusion press, and the sludge penetrating the axially arranged strainer elements 4 thereof falls on to a vibrating screen 2. The liquid content passes through screen 2 to outlet 13, and the solids are discharged from the press and from the screen at 14, 15 as one stream. The screen is suspended by springs 11 and the screw 3 varies axially in pitch and core diameter and is axially adjustable to vary the degree of pressing.
Patent GB-315006-A (GB)
IPC: C10L5/10
Filed: 1929-07-06
Abstract: 315,006. Roux, C. A. A. M. July 7, 1928, [Convention date]. Materials for making coke. - A composition fuel for use in gas producers is obtained by carbonizing a mixture of charcoal and mineral carbon (i.e. substances of vegetable origin wholly or partly transformed into coal) together with a mucilaginous binding material such as peat or seaweed and, if desired, a catalyzer. A cellulosic paste is obtained from peat by mixing the latter with water in a device adapted to increase the natural colloidal state of the peat, and to this paste is added seaweed or a cellulosic lye. The pulverized fuels are then added to the paste. Tar, preferably obtained from the carbonization of the composition fuel as indicated below, may also be added. A metallic powder or mineral substance such as pulverized iron ore is added to the paste to assist the reactions during the use of the fuel. The composite paste is then made into briquettes which are carbonized, preferably with the recovery of the tar. The briquettes are quenched without being completely cooled and are then immersed in a solution of a nitrate, preferably calcium nitrate, together with treacle. The briquettes may finally be placed in an atmosphere of hydrogen or of a hydrocarbon such as methane, the hydrogen, &c., sometimes being under pressure.
Patent GB-717013-A (GB)
Title: Improvements in or relating to paper pulp beater roll
Inventor: HAYES FRANK
IPC: D21D1/02
Filed: 1952-08-20
Abstract: 717,013. Paper pulp beaters. NOBLE & WOOD MACHINE CO. Aug. 20, 1952, No. 20903/52. Class 96. A paper pulp beater roll 11 is longitudinally grooved, e.g. at sixteen equally spaced positions to receive horizontal bars 16 between which are packed grinding bars 20 and spacers 21, all of which are held in place against radial displacement by undercut locking-rings 14 surrounding the roll shell, and by end-rings entering slots in the ends of the bars &c. The end-rings may be in sections, each screwed to the end-face of the roll and may be protected by cover-plates. Spacers midway between the bars 16 are inserted last when assembling, and removed first for dismantling.
Patent GB-929680-A (GB)
Title: Purifying synthetic phenol by distillation
IPC: C07C39/04
Filed: 1961-06-09
Abstract: In a distillation process for the separation of pure phenol from a crude reaction product containing a preponderance of phenol together with minor proportions of cyclohexanol and/or cyclohexanone, the crude phenol is first submitted to fractionation to distil off the lower-boiling impurities and the bulk of the phenol, leaving the higher-boiling impurities as p  distillation-residues; the distillate is then re-fractionated to separate pure phenol.  In an example, cyclohexane is subjected to air-oxidation, in the presence of a cobalt naphthenate catalyst; and the product is submitted to vacuum-distillation to obtain a "cyclohexanol cut".  This cut is dehydrogenated using a platinum-on-carbon catalyst.  The crude phenol is fractionated using a 35-plate column at a reflux ratio of 5 to 1; and a fraction boiling up to 184 DEG C. is withdrawn as distillate. This distillate is re-fractionated for the removal of water and light ends; and then, with a head-temperature of 178 DEG -182 DEG C., pure phenol is withdrawn as a side-stream from the 7th plate from the bottom of the column.
Patent GB-1504372-A (GB)
Title: Lighting switches for motor cars or other vehicles
IPC: B60Q1/42
Filed: 1975-05-16
Abstract: 1504372 Cam-operated switches SOC DE SIGNALISATIONS AUTOMOBILES SEIMA 16 May 1975 [16 May 1974] 20977/75 Heading H1N A lighting switch for motor vehicles comprises a selector shaft 13 controlled by a knob (not shown) and journalled in bearings 11, 12 on mounting plate 10, the selector having three positions corresponding to daytime driving, night driving in towns and night driving on highways respectively and defined by a square cam 18 pressing on a flexible blade 19 and a projection 14 engaging stops (15, 16, Fig. 14, not shown) to limit rotation to 180 degrees, repeated operation of a lever 63 in direction 73 (Fig. 1) giving successively minor lights with or without dim lights with the selector in the 'town' position and minor lights with dim lights or headlights in the 'highway' position. Plate 10 carries switches 25/25-1, 26/26-1, 27/27-1, 35/35-1 and 36/36-1 of which the contacts 25 to 36 are on flexible blades 22, 23, 24, 33 and 34 backed by springs (51, Fig. 3, not shown) and 25-1 to 36-1 are fixed, the plate also having an extension 37 used as a connector on which fixed blades 38 to 42 are mounted, 38 being connected to the dim lights, 39 to the headlights, 40 to the minor lights, 41 to warning means which may include the dim or head lights and audible warning means and 42 to the battery. In the 'daytime' position switches 25/25-1 and 26/26-1 are opened by cam 20 and 27/27-1 is opened by cam 21, all lights thus being disconnected except when the lever 63 is operated in direction 67 (Fig. 2) against spring 70 to allow contact 47 on blade 48 to be pressed against contact (46, Fig. 14, not shown) on blade 41 by spring blade 49 to operate the warning signals. In the night 'highway' position of the selector switches 25/25-1, 26/26-1 and 27/27-1 are closed by cams 20, 21, so that the minor lights are connected via blade 40, stud 45, blade 22 (Fig. 1) and switch 25/25-1 and stud 50 is connected to the battery via switch 26/26-1, blade 23, stud 45, blade 22 and switch 25/25-1. Successive operations of lever 63 in direction 73 (Fig. 1) against return spring 65 now close switches 35/35-1 and 36/36-1 in turn to connect the dim lights via blade 38, switch 35/35-1 and blade 33 or the headlights via blade 39, stud 44, blade 24 (Fig. 1), switch 27/27-1, connection 43, switch 36/36-1 and blade 34 to stud 50, each operation of the lever 63 moving a slide element 55 by a pin 60, the slide element rotating a ratchet 30 through 45 degrees by a dog (57, Fig. 12, not shown) to open switches 35/35-1 and 36/36-1 in turn by square cams 31, 32 which rotate with ratchet 30 on the cylindrical end of the selector shaft. In the night 'town' position the operation is identical except that switch 27/27-1 remains open, so that the headlights do not operate.
Patent GB-499834-A (GB)
Title: Improvements in or relating to nuts and bolts and the like fastening means
IPC: F16B37/00
Filed: 1937-07-29
Abstract: 499,834. Nuts &c. WALKER, T. H. V., and LINDSAY, T. July 29, 1937, No. 21027. [Class 89 (i)] A polygonal nut, union, or like internally screw-threaded fasten ing 1 is formed across a number o: its threads 2 with a plurality o: round-bottomed grooves, slots, or the like 3 for the reception of a lubricant or other loosening medium, said grooves being situated on more than one diagonal oi the nut and being provided at both ends with retaining means for the lubricant. The retaining means may comprise a plug of lead or other soft material for the open end or ends of each groove, or a washer fitting close against the bottom of,the nut.
Patent GB-587111-A (GB)
Title: Improvements in or relating to thermostats
IPC: H01H37/52
Filed: 1943-12-15
Abstract: 587,111. Thermostats. THERMEGA, Ltd., and SINGLETON, S. A. Dec. 15, 1943, Nos. 21065/43 and 24428/44. [Class 64 (ii)] [Also in Group XXXVII] A thermostat comprises two bimetallic strips 1, 2 movable in opposite directions on change in temperature, an electrical contact 4 on strip 1 and a blade spring 5 mounted parallel to and separately from the strips and having a cooperating contact 6 under the control of the strip 2 or of both strips. The bimetallic strips 1, 2 are mounted on opposite sides of an insulating holder 3, and adjacent and outside the strip 2 (Fig. 1) is mounted the blade spring 5 which presses the contacts together until, when the strips move apart on change of temperature in a given direction, the blade 5 first follows the strip 1 and later, when pressed by the strip 2, the blade moves away to open the contacts. In Fig. 4 the spring blade 5 is mounted between the strips and is bent at 17 to press at a point intermediate its length on a projection 18 on the strip 2 so that on a change of temperature in a given direction, the strips move apart and the blade also moves to open the contacts. The strip 2 is connected by a resilient strip 19 to the holder 3, and an adjustment screw 20 on a bracket 21 bears on the strip 2 to adjust the initial tension on the blade 5 and the distance apart of the contacts 4, 6 to regulate the temperature at which the contacts open. The contact 4 is adjustably screwed into the blade 1. The members 1, 2, 5 are held on the holder 3 by bolts 10 with insulating sleeves 12 and mica strips 13. The holder 3 carries terminals 16 and resilient strips 14 bent to hold the thermostat centrally in a glass tube, which may be evacuated or contain an inert gas.
Patent GB-387245-A (GB)
Title: Improvements in or relating to suction or so-called vacuum cleaners
IPC: A47L5/36
Filed: 1932-07-27
Abstract: 387,245. Dust-bags. MORRIS, A., 46, Commercial Street, London. July 27, 1932, No. 21226. [Class 94 (ii).] In a vacuum cleaner in which the dust-bag is enclosed in the cylindrical casing of the cleaner, a paper bag 11 is employed in the dust-bag, and the neck of the paper bag is gripped between a flange 25 on the endplate 20 detachably secured to the casing and a sliding intake tube 28, either by a rubber &c. ring 30 compressed by an enlargement 29 on the end of the tube, or directly by an enlargement on the tube. The sliding tube is guided by a pin and slot, and is drawn outwards to clamp the bag by a nut 35. The rim of the outer dustbag is clamped between the end of the casing and the endplate 20. The bag is made by folding and stitching a sheet of paper, an extra sheet 19, which may bear instructions, strengthening the neck ; the side portions 13, 14 about the neck are received in slots in the flange 25.
Patent GB-639944-A (GB)
Title: Hydraulic remote control apparatus
IPC: F15B7/02
Filed: 1947-08-05
Abstract: 639,944. Hydraulic machines; fluid-pressure servomotor-control systems. OILGEAR CO. Aug. 5, 1947, No. 21263. Convention date, Sept. 15, 1944. [Classes 69 (iii) and 135] In a hydraulic remote-control for an actuator 36 having in combination a transmitter pump 1 and a receiver pump 3 connected by channels 5, 6 in a substantially closed circuit, means, which may be a gear pump 9 and rotary valve 26, for varying the displacement of pump 1 to vary the rate at which it delivers liquid to pump 3, means for adjusting the displacement of pump 3 and means, which may be actuator displacement varying pistons 38, 40, responsive to variation in delivery of one pump relative to that of the other for effecting operation of the actuator, there are provided means, such as the link or lever mechanism 29, 44 responsive to the operation of the actuator 36 for operating the displacement-adjusting means :of .pump 3 to equalize the delivery of the pumps and thereby stop further operation :of the actuator. The unidirectional or reversible pumps 1 and 3 are each driven at constant speed by electric motors 2, 4, respectively. The gear pump 9, which is driven in unison with either pump 1 or 3 supplies " make-up " liquid to the system and is connected to the conduits 5 and 6 by non-return valves 13 and 14 respectively, also controls the displacement of transmitter pump 1 since it is permanently connected to the right-hand piston 15 of slide 7 and may be connected to the left-hand piston of larger area under the control of the manually-operated rotary-valve 26, the latter piston and valve giving a " follow-up " action. The pump 9 also maintains pressure in the system when both pumps have equal displacement. The receiver pump 3 may either have a similar displacement control or a mechanical one wherein the left-hand piston of its slide block 8 is loaded by a spring 31 and the right-hand piston is operated by the lever 29 in turn actuated through the pin 44 on the lefthand piston 40 of the slide block 37 of actuator 36, which latter may act as a pump or a motor. The right-hand piston 38 of the actuator is of the same effective area as piston 40, which pistons are connected to conduits 5 and 6, respectively. Upon moving the valve 26 from its neutral position so that slide block 7 moves say, leftwardly, the receiver 3 is at zero displacement so liquid will act upon piston 38 moving the slide block 37 leftwardly. Piston 40 will eject liquid into conduit 6 and cause slide block 8 also to move to the left until the receiver displacement is equal to that of the transmitter 1, so the former will draw liquid from conduit 5 at the same rate as the transmitter is discharging therein, and the actuator movement will therefore cease. The system is now stable, and the movement of the actuator may be read off on a dial 27 over which the valve lever moves since it is proportional to the operation of the valve 26. A number of receivers and actuators may be used in conjunction with one transmitter. In a modification, the actuator is in the form of a simple doubleacting piston.
Patent GB-962449-A (GB)
Title: Valve actuating mechanisms
IPC: F01L1/16
Filed: 1961-06-13
Abstract: 962,449. Valve gear. POLYMER CORPORATION. June 13, 1961 [June 15, 1960], No. 21264/61. Heading F1B. In a cam-operated valve-actuating mechanism having a push rod 12, a rocker arm 10 and a valve stem 56 a sythetic plastic polyamide bearing element 26 or 52 is interposed between the rocker arm and the valve stem and/or the push rod. The insert 26 is seated in a socket 16 mounted on the push rod 12. In further embodiments, the ball contact member is made in a polyamide, and a polyamide cap is fitted over a plain end or inserted in a recess in the end of the push rod, or locked over an enlarged end of the push rod. The valve stem may be fitted with a polyamide cap which has a flat upper surface or a convex upper surface on an enlarged flange or a flat upper surface in a recessed flange.
Patent GB-421292-A (GB)
Title: Improvements in enharmonic keyboard musical instruments
IPC: G10B1/00
Filed: 1933-07-28
Abstract: 421,292. Keyboard musical instruments. COMPTON, J. H., Chase Road, Willesden, London. July 28, 1933, No. 21308. [Class 88 (ii)] An enharmonic musical instrument, such as an organ, has an ordinary keyboard and is provided with means whereby a key, say A, which normally produces a note A which is in consonance with say E and F but which would be in dissonance with D, is caused, on the simultaneous operation of key D in order to sound note D, to sound a sharper A, consonant with D, in lieu of the normal A. In Fig. 1, depression of the A key 1, by closing contacts 3 sounds the normal A at 2. Depression of the D key 5, by closing contacts 9 sounds the note D at 10; it also breaks the normal A circuit at 4 and closes contacts 7, so that if the A key 1 is simultaneously depressed closing contacts 3, a sharper A is sounded at 8. Instead of using separate sounding means at 2 and 8 for the normal A and the sharper A, an aperture on the normal A pipe may be opened to produce the sharper A (Fig. 2, not shown). Circuits may be arranged so that all the D's control all the A's (Fig. 3, not shown).
Patent GB-1039738-A (GB)
Title: Improvements in and relating to data processing circuits and systems
Inventor: PELTIER MAX
IPC: H03K19/084
Filed: 1964-05-22
Abstract: 1,039,738. Transistor logic circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. May 22, 1964, No. 21333/64. Heading H3T. A bi-stable circuit is controlled by a gating circuit so as to follow the output of the gate except when a control signal is applied to cause the bi-stable circuit to act as a store. The bistable circuit shown comprises two transistors Q3, Q4 having collector-to-base cross-coupling paths D7, R6 and D12, R11 and provides complementary output signals from buffer stages Q5 and Q6. The circuit is controlled by a diode AND gate E comprising signal input diodes D1 and clock and control input diodes D2 connected respectively to terminals T and L, the latter terminals also supplying through an AND gate D3 a further transistor Q2. When the control signal L is positive the bi-stable circuit follows the AND signal. Thus, when all the signals are positive and the clock pulse appears, a transistor Q1 is rendered conductive by the changing current of a capacitor C1. This renders Q4 non-conducting (if it is not already so), changing over the bi-stable circuit and, through D5 holds Q2 non-conductive. If any of the E signal inputs are then removed the next clock pulse will not render Q1 conductive but it will pass through the gate D3, charge a capacitor C2 and to render Q2 conductive. This causes Q3 to be cut-off and thus change-over the bistable circuit. If however the control signal is removed from line L, neither of the AND gates will allow the clock pulse to pass and the bi-stable circuit will remain in its existing state irrespective of the logic output from the gate E. Diodes D7 and D12 in the cross-coupling paths of the bi-stable current maintain the steepness of the leading edges of the voltages. Diode D11 maintains the charge on C4 when Q3 cuts off and this is assisted by diodes D8 and D9 which increase the discharge path resistance for the coupling capacitors without increasing their recovery time and so allows the use of larger capacitors. Stages may be interconnected and successive stages may use clock pulses of different phase.
Patent GB-1279375-A (GB)
Title: Improvements in or relating to threshold voltage determination systems and character recognition systems incorporating threshold voltage determination systems
IPC: G06V30/162
Filed: 1971-04-19
Abstract: 1279375 Character recognition BURROUGHS CORP 19 April 1971 [24 Feb 1970] 21382/71 Heading G4R A character recognition system employs a potential divider fed by a signal derived from the outputs of a plurality of scanning transducers, the divider providing a reference level to threshold units fed by the transducers. As described a cheque is moved past phototransistor or magnetic transducers arranged to scan the characters in parallel lines. Each transducer feeds a signal, Fig. 5, to a respective amplifier 36, Fig. 2. Amplifier 36 feeds differential amplifier 44 associated with capacitor 42, which removes the D.C. (background) level 98, Fig. 2, and with feedback components 50, 52 which clamp the background level to zero and remove the cheque leading edge pulse 96. The signal, Fig. 7, at the output of amplifier 44 passes via threshold unit 56 to recognition unit 26. An OR gate comprising diodes 58 passes the highest instantaneous value of the signals from amplifiers 44 to potential divider 66, 68. The divider is associated with capacitor 74 which has a rapid charge and slow discharge so that the divider output, Fig. 8, varies slowly and remains at about 50% of the peak voltage from the amplifiers. This output is used as the threshold level for threshold units 56. To prevent the threshold from becoming excessively low in the absence of a character the divider is fed by a reference potential 76.