baber/WOPTO huggingface dataset:
Patent GB-320924-A (GB)
Title: Improvements in machines for making or duplicating sound records
IPC: G11B5/86
Filed: 1928-07-23
Abstract: 320,924. Stephens, A. J., (Loughridge, M. H.). July 23, 1928. Records, duplicating ; feed-mechanism ; driving; multiple machines. - A machine for making or duplicating gramophone records comprises a vertical stand preferably having two standards 13, between which brackets 20 are secured at intervals, each supporting a turntable 27. Adjacent to each bracket 20 is another bracket, 41 for guiding a stylus-carrying arm 51, and providing support for feed mechanism for these arms. A vertical shaft 19, driven by a motor 15, is arranged between the standards 13, and carries friction-wheels 32 adapted to drive the turntables 27. Each turntable is mounted on a stem 26 on an arm pivoted to one of the brackets 20, a spring 29 normally holding the turntable in engagement with its driving wheel 32. By means of a thumb nut 31, any turntable can be moved out of action when required. Each bracket 41 has a guide-rod 43 on which one of the arms 51 is slidably pivoted, a slot 42 being provided in all the brackets 41 and a corresponding slot in each bracket 20. A vertical pipe 47 passes through all the slots 42 and couples together cross-heads 48 which are slidably mounted on the rods 43 and have a jaw engagement with the arms 51. The top and bottom brackets 41 also carry feedscrews 44 driven by worm and wheel gearing from the shaft 19, the screws being engaged by feed arms 49 which also engage the respective parts 48, 51. By this means all the stylus-arms 51 are fed simultaneously across the turntables at the same speed. A master record may be placed on the top turntable, and a pick-up on the corresponding arm 51 applied thereon. Amplified currents from the pick-up are transmitted to recording-heads acting upon metal or other blanks on the other turntables, to produce duplicate records. Mechanism is provided whereby the stylus-arms may be raised simultaneously from the records, and the feed mechanism disengaged at the same time. For this purpose, a. rod 57, Fig. 4, provided within the pipe 47, has projections 58 extending through slots in the pipe and engaging projections 59, 60 on the parts 51, 49, respectively, when the rod 57 is lifted by means of a hand-operated eccentric 56.
Patent GB-667790-A (GB)
Title: Improvements in or relating to beckmann thermometers
Inventor: BROAD WALTER ALFRED
IPC: G01K5/26
Filed: 1949-08-16
Abstract: 667,790. Thermometers. ELLIOTT, Ltd., H. J. July 4, 1950 [Aug. 16, 1949], No. 21317/49. Class 97 (iii). In a Beckmann thermometer, the reservoir for receiving excess liquid detached from the main column instead of being bent with consecutive U-formations, as is usual, comprises a rectilinear tube 10 in prolongation of the main column 12 and communicating with it through the intermediary of a droplet splint 14. To set the thermometer it is inverted until the desired amount of liquid has passed through the droplet splint 14. It is then turned on its side with the auxiliary reservoir 10 lower than the main reservoir (not shown) and given a sharp tap, whereby the liquid in the reservoir. 10 separates from the droplet splint and runs through a narrowing 15. On return of the thermometer to the upright position the droplet splint empties into the main column and the liquid in the auxiliary reservoir falls and rests on the now empty droplet splint, the cross-section of the orifice therein being so chosen as to support a column of liquid of the desired height. For a mercury column of 1 inch in the auxiliary reservoir, the cross-section of the orifice should be 0.0395-0.0625 sq. mm.; for greater heights the cross-section must be proportionally. decreased. The liquid in the reservoir may be returned to the main column by violent shaking or by centrifugal action. The internal diameter of the auxiliary reservoir is increased where it surrounds the droplet splint, and this enlarged part is provided with a central indentation so that mercury cannot crash against the joint of the droplet splint and the main column. Instead of being formed as shown, the auxiliary reservoir may consist of a tube of large diameter with a top section of small bore; in this case an indentation may be provided in the large diameter portion just below its joint with the top section. The bore of the main column 12 is increased to form a cavity 16 just below the droplet splint. An auxiliary scale 11 is provided behind the reservoir 10.
Patent GB-933453-A (GB)
Title: Improvements in or relating to machine tools
IPC: B23Q5/36
Filed: 1961-06-13
Abstract: 933,453. Lathes; machine details. H. ERNAULT-BATIGNOLLES. June 13, 1961 [July 21, 1960], No. 21370/61. Class 83 (3). A controlled fluid-pressure feed movement for the slide of a lathe or other machine has means for maintaining the feed movement proportionate to a rotating part such as the work spindle of the lathe. A lathe saddle 1 is rigidly connected to the differential piston 3 of a piston and cylinder actuator supplied with fluid pressure from a pressure source 7 and exhausting through line 14 to a reservoir 15. The actuator is controlled by a piston valve 12 which is rigidly connected to a worm 20. In addition to its sliding control movements the valve is rotated by gears 21, 22 from a gear-box shaft 27, the input drive of which is from the lathe spindle by a belt. The lathe saddle is provided with a screw or rack 46 which engages a gear 39 carried by a shaft 38 supported on a fixed part of the machine. The shaft 38 may be clutched to a shaft 36 carrying a worm gear 33 meshing with the worm 20 connected to the valve 12. The feed movement in either direction is thus controlled to " follow " the speed chosen for shaft 27. The screw 46 may be hand-rotated. The drive from the gear-box 27 is through an electromagnetically operated clutch and brake 26, 29 respectively. Electromagnetic clutch arrangement 41, 37 enables the saddle to be driven at high speed for quickreturn movements. An adjustable stop bar is provided to cut-off the feed movement at the end of predetermined strokes.
Patent GB-436323-A (GB)
Title: Improvements in systems for the automatic control of winders and like installations
IPC: B66B1/26
Filed: 1934-07-21
Abstract: 436,323. Winding-apparatus. SMITH, D. M., 37, Church Street, Stretford, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. July 21, 1934, No. 21398. Addition to 392,155. [Class 78 (v)] The invention described in the parent Specification is modified by introducing between the rotary switch 7 and the differential gear mechanism 8 an operative connection consisting of a crank-arm 8b mounted on a spur-wheel 8a, the position of which is controlled by the casing member 8 of the differential gear mechanism of which the members 10 and 11 are driven respectively by the winding drum 1 and the pilot motor 12. The arm 8b is held in a medial position, normally, by springs 8c, 8d, with or without limit abutments. The outer end of the arm is connected by a link to a floating lever 8e pivoted near its middle to the piston rod 8f of a piston valve 8g, and at its outer end joined by a link to a lever 8h pivoted to a fixed entity at one end. The outer end of the lever 8h is pivoted to the piston-rod 8j of a cylinder 8k, and the upper end of this rod actuates the rotary switch 7, e.g. through a pivoted rack element 8l. The upper part of the cylinder 8k is in fluid connection with a source of pressure fluid and with the between-piston region of the piston-valve 8g, and the lower part of the cylinder 8k communicates by conduit 8n with the cylinder 8g at a point where it can be blocked by the valve piston or be put through to the waste 8m. In action, a difference in speeds of the drum 1 and motor 12 moves the arm 8b either to raise or to lower the lever 8e and rod 8f. Raising of this rod puts the lower part of cylinder 8k in connection with waste, and as the upper part is always under source pressure, the piston rod 8j moves downward bringing with it the piston-rod 8f till the valve piston blocks the conduit 8n. Lowering of the rod 8f puts top and bottom parts of the cylinder 8k into connection with source pressure, thus forcing up the rod 8j, owing to the difference in top and bottom areas of the piston, and raising 8f till conduit 8n is again blocked. Fig. 2 shows a modified connection between the arm 8b and the lever 8e consisting of an intermediate float 80b suspended near its middle from the outer end of the arm 8b and having its inner end pivoted to a dash-pot piston-rod and connected by a spring 80c to the arm 8b. This connection brings about an enhanced initial movement of the switch 7, with normal subsequent movement. Both forms of connection effect diminution of hunting on the part of the switch 7, and the springs 8c, 8d are sufficiently strong to affect the speed of the motor 12.
Patent GB-443150-A (GB)
Title: Improvements in or relating to electrical tuned circuit arrangements suitable for use in wireless signalling apparatus
IPC: H01P7/04
Filed: 1934-07-21
Abstract: 443,150. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and O'DONOVAN, D. E., Russets, Vicarage Road, Chelmsford. July 21, 1934, No. 21401. [Class 37] [See also Group XL] In a rejector circuit for eliminating a harmonic from the output of a wireless transmitter, the inductance is constituted by a pair of coaxial copper tubes 1, 2 whose effective length is determined by a conductive bridge 7, while the capacity comprises condensers 3 located at one end of the pair of tubes. The bridge 7 is annular and of springy material, and constitutes an adjustable piston. It is adjusted by means of a lever 14 fulcrumed on a link 16 and connected by trunnions to a sliding sleeve 18 which is fast to the bridge 7. In this way fine adjustment of the wave-length is obtained. When the bridge has been adjusted its position is fixed by means of a clamping-nut 11 and bolt 10 which draws together the plates 8, 9 so as to expand the member 7. Coarse adjustment is effected by changing the six condensers 3, whose terminals 3a are clamped against the faces of a hexagonal conductive nut 21 by pressure of screws 4, while their other terminals are clamped between the end of the outer tube 1 and a flange 24a on the end cap 24. The nut 21 is in conductive connection with the inner tube 2 through its stem which fits into the split end of the tube and is clamped by bands 23. The external terminals of the rejector circuit are at 25, 26. The outer tube 1 may be 7 ft. long and 7 in. in diameter and the system may be tuned to a wave-length of 694À5 metres. In modifications the end of the tube 2 may be hexagonal to accommodate the condensers 3, or may be threaded to take a hexagonal nut for that purpose. Instead of the lever 14 a removable bolt and nut may be provided for the fine adjustment.
Patent GB-262170-A (GB)
Title: Improvements in or relating to apparatus embodying the use of a movable endless ribbon, tape, film or the like for advertising, cinema picture projection or other purposes
IPC: G09F11/26
Filed: 1925-08-26
Abstract: 262,170. Duchard, H. M. Aug. 26, 1925. Kinematograph apparatus.-Endless kinematograph film strips are formed into a coil which is loosely suspended from a single freely-rotatable holder, the strip being withdrawn from the interior of the coil by the apparatus and being returned to the exterior of the coil. The coil a<1> may be formed by winding the strip on the holder b with the aid of a distance piece h which is afterwards removed. The holder comprises a drum having a disc b<1> and arms e carrying rollers e', the drum being mounted on an inclined spindle c. The strip is fed from the interior of the coil over a roller having its axis so inclined to the axis of the drum that the strip clears the side of the coil. Specifications 233,454, [Class 118 (ii), Signals]; and 234,041. [Class 37 (ii), Punching and perforating machines &c.], are referred to.
Patent GB-206897-A (GB)
Title: Improvements in or relating to foundry moulding boxes
IPC: B22C21/00
Filed: 1922-08-05
Abstract: 206,897. Edwards, L. Aug. 5, 1922. Camping flasks. - Flasks are clamped with superposed boards 4, 5 if desired in a frame composed of side members, that may be adjustable in height, connected by cross-bars 2 on which the flasks rest. Clamping pressure is applied by segmental rods 8 engaging inclined surfaces on the side members.
Patent GB-811718-A (GB)
Title: Improvements in fasteners such as bolts or rivets
IPC: F16B43/00
Filed: 1955-07-25
Abstract: 811,718. Joint-making packing. IAIA,   J. A. July 25, 1955, No. 21454/55. Class 122 (3). [Also in Group XXV] A fastener, e.g. a bolt or rivet, comprises a shank A, Fig. 1, with a head B, at one end, having a work-engaging face 20 containing a channel 15 for a seal ring D of rubber or the like. A disc E, e.g. of polytetrafluoroethylene, is provided between the ring and the base of the channel to slide relatively to the head, when the fastener is tightened, and protect ring D from damage. In a modification, the ring D<SP>1</SP>, Fig. 4, is of tubular resilient metal and is suitable for fasteners subject to high-temperatures, and the disc E (not shown) may be of metal.
Patent GB-294549-A (GB)
Title: Improvements relating to apparatus for the limitation of high short-circuit electric currents
IPC: H01C1/14
Filed: 1928-07-25
Abstract: 294,549. K³ppers, K. July 25, 1927, [Convention date]. Protective arrangements.-In power circuits in large electrical power stations, short-circuit currents many times the normal working currents are restricted by connecting directly in the protected circuit resistances of metal, such as iron, nickel or tungsten, having a high temperature coefficient, the resistances remaining cool for working currents but being rapidly heated by shortcircuit currents. The resistances may be contained in evacuated spaces or spaces filled with inert gases. Artificial cooling may be employed to keep the resistance value low at normal loads. Reactance coils may be used in series with the resistances to limit impulse short-circuit currents or the resistances may be wound into air-cored chokes. Specifications 22624/11; and 252,181, [Class 37, Electricity, Measuring &c.], are referred to.
Patent GB-1085221-A (GB)
Title: Improvements in or relating to apparatus for measuring the mass flow of fluids
Inventor: MATTHEWS ROBERT BARRY
IPC: G01F1/80
Filed: 1963-05-29
Abstract: 1,085,221. Electro-physical measurement, control, &c. PLESSEY-UK Ltd. May 26, 1964 [May 29, 1963], No.21522/63. Heading G1N. [Also in Division F1] In the mass-flow meter as described and claimed in Specification 1, 027, 291, the angle of the vanes of the stationary deflector device are varied automatically in accordance with the mass-flow of fluid through the meter. As described, the signals representing the rotational speed of the freely rotating speed paddle 2, Fig. 2, and the signals representing the torque reaction of the paddle 8 are fed to computer-input units 13, 14 respectively to represent the digital values of swirl speed and torque. The outputs of these two units are fed to a divider unit 15 which is connected to a display unit 17 to record mass-flow and also to a programming unit 18, which latter determines a speed N, at which the paddle 2 should be run for the mass-flow concerned. This speed signal N 1  together with the actual speed signal N fed to the input unit 13 are fed to an algebraic adder 19, amplified by an amplifier 20 and used to operate an electric motor 21 to rotate a ring 22 in one or other direction to adjust the angle of the vanes 6 of the stationary deflector device. The motor being driven to reduce the blade angle and hence the speed when N is higher than N 1  and increases the blade angle and hence the speed when N is lower than N 1 .
Patent GB-220175-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22B7/16
Filed: 1923-08-25
Abstract: 220,175. Watson, E. Aug. 25, 1923. Partitions in water space. - To promote the water circulation in a Cornish or like boiler, the water space is divided longitudinally into two compartments by a horizontal partition G of such a length that a space is left at each end of the boiler. The partition is formed of plates which mav rest upon arms N secured to the flanges of the furnace flues or upon angle-irons secured to the sides of the flues.
Patent GB-498154-A (GB)
Title: Improvements relating to the tuning of radio receivers
IPC: H03J5/08
Filed: 1937-08-05
Abstract: 498,154. Adjusting wireless apparatus. COLE, Ltd., E. K., and ROWE, JUN., H. C. Aug. 5, 1937, No. 21566. [Class 37] [Also in Group XL] In a press-button tuning device, the tuning element is moved manually or automatically until arrested by an abutment associated with an actuated press-button and is then locked by the abutment against movement in either direction until depression of another button. Each press button 13 is rigid with a catch rod 2 having notches 9, 10, a depressed button being locked in position by a pivotal locking bar 1 engaging the notch 10 thereof. A cam surface is provided on each catch rod 2 between the notches 9, 10 so that during depression of any button the interlinked locking bars 1 are all rocked to release any previously depressed button which is returned to the outer position by a spring 11. A shaft 14 located inside each catch rod 2 ends in a cranked stud 3 which in the depressed position of the associated button forms the abutment which determines the tuning position of the corresponding station. For fine adjustment of the stud 3, the cover of the button 13 is removed and the shaft 14 rotated by means of the screw head 15, the shaft being threaded into a member 16 at the upper end of the associated rod 2 and locked in its adjusted position by a lock nut (not shown). To tune in a station, after depression of the associated press button, a sliding carriage 4 is moved along guide rods 18, 19, by a manually operated lever 5, Fig. 4, and at the same time the tuning shaft is rotated through a tensioned cord 24, until the operative stud 3, Fig. 2, depresses one of two spring biassed pivotal plates 20, 21 in the carriage 4 and then engages in the slot 23 between these plates to lock the carriage and the tuning shaft in the " tuned in " position. The lever 5 has slight angular play whereby switches are actuated by initial movement of the lever 5 to mute the receiver and disable the automatic frequency control circuit during movement of the tuning shaft. The carriage 4 may, alternatively, be moved electromagnetically through a circuit closed by the depressed press-button or by any other automatic means. For normal timing, a switch 25 is actuated to cut out the automatic frequency control circuit and a cam on the axis thereof causes the locking bars 1 to be rocked away from the catch rods 2 to disable the press-button tuning gear. The switch also extinguishes the illumination of the press-button panel and illuminates the ordinary tuning scale.
Patent GB-755793-A (GB)
Title: Improvements in or relating to annular permanent magnets secured to shafts
Filed: 1954-07-23
Abstract: 755,793. Machines with permanent magnets. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 23, 1954 [July 24, 1953], No. 21569/54. Classes 35 and 38 (2). An annular permanent magnet 1, e.g. for a motor, generator or coupling, made of material of high retentivity and coercivity and of the formula MO.6Fe 2 O 3 , where M represents one or more of barium, strontium or lead such as forms the subject of Specification 708,127, is secured to a shaft 5 by a sleeve 3 of non-porous material cemented at 4 and 6 to the magnet and shaft respectively. The sleeve may be of ceramic and the cement an ethoxyline resin. The sleeve prevents the cement 6 surrounding the shaft 5 where the stress is greatest from being absorbed by the porous magnetic material, or from absorbing moisture and oil whereby its strength is reduced. The diameter of the bore of the magnet may be twice that of the shaft, and the thickness of the cement may be 0.3 mm.
Patent GB-370294-A (GB)
Title: Improvements in or relating to closures for powder-distributing cartons and the like
IPC: B65D83/06
Filed: 1931-07-28
Abstract: 370,294. Cartons for powder. HOSKING, H. G. W. and SPICER, J. L., 19, New Bridge Street, London. July 28, 1931, No. 21578. [Classes 18 and 125 (iii).] The end of a carton &c. for powder is closed by a thin metal cover a which may be seamed over and is provided with a shallow recess whose diameter is considerably less than that of the end of the carton ; and the floor b of the recess is plain and provided with one or more perforations which are covered by a disc d of cardboard, paper, &c., whose diameter is slightly less than that of the recess and which is clamped in position by forcing the upper edge c of the recess down on to the disc by applying dies to the upper surface of the cover a and the lower surface of the floor of the recess. The disc may be clamped all round its circumference or only along certain sections thereof, and, to facilitate removal of the disc, it is provided with a slit on its upper side or a semi circular gap on its edge for the insertion of a pointed instrument. The recess need not be concentric with the cover.
Patent GB-1465721-A (GB)
Title: Ground fault detector
IPC: H02H3/33
Filed: 1974-05-15
Abstract: 1465721 Protective systems MITSUBISHI DENKI KK 15 May 1974 [19 May 1973] 21589/74 Heading H2K A core balance ground fault protective system has the secondary of the core balance transformer 20 arranged to control a semi-conductor switching device such as a thyristor 32 which when mode conducting effects tripping of a circuit interrupter 18 and the circuit between the transformer secondary and thyristor includes a resistor 52, a capacitor 58 serially connected to the resistor 52 and a constant voltage element such as a Zener diode 54 connected across the resistor 52 and having a resistance much lower than the resistor so that when the transformer 20 has an output less than a first predetermined value current passes through the resistor 52 to gradually increase the potential on the capacitor to a second predetermined value at which the thyristor is made conducting and when the transformer output exceeds said first predetermined value current passes through the diode 54 to substantially increase the potential on the capacitor to the value at which the thyristor is mode conducting. The transformer secondary output is fed to the resistor 52 and diode 54 via an adjusting resistor 22 across a further Zener diode 24 and a series combustion of a temperature compensating resistor 26 and thermistor 28 and the resistor 22 with a capacitor are arranged to absorb the effects of line surges. The tripping of the interrupter 18 is controlled by an electromagnet 34 connected to the thyristor 32 and fed with power from a rectifier bridge 38, 40, 42, 44 connected to a transformer 46 fed from the line conductors 10, 12.