baber/WOPTO huggingface dataset:
Patent GB-786291-A (GB)
Title: Improvements in or relating to means for duplicating
IPC: B41L11/00
Filed: 1955-04-26
Abstract: 786,291. Rotary duplicating-machines. RITZERFELD, W., and RITZERFELD, G. April 26, 1955 [April 28, 1954], No. 12011/55. Class 100(2) Copying documents; tripping arrangements. A rotary duplicating-machine for printing three or more text portions from a duplicating master sheet on to a copy sheet in closer space relationship than, that of the portions on the master sheet, comprises a rotatable printing drum 1, a rotatable impression roller 5 for effecting printing contact between the copy sheet 24 and the duplicating master sheet 2 when attached to the printing drum, the impression roller being movable towards and away from the printing drum to press the copy sheet against the master sheet and to release it from pressing against the master sheet, and a plurality of cams forming at least three assemblies, each adjustable in accordance with the portions of the text on the master sheet to be printed and controlling the movements of the impression roller towards and away from the printing drum during each complete revolution thereof, the arrangement being such that during each complete revolution of the printing drum the impression roller is, due to said assemblies acting in succession, at least three times moved towards the printing drum under the control of the cams. As shown, the master sheet 2, Fig. 1, is attached to a printing drum 1 by a clamping device 3, while the impression roller 5 is pivotally mounted on a shaft 4. The roller 5 is rocked towards and away from the drum 1 by a toggle joint 21, 22, 23 actuated by a lever 20 rocked by cam followers 18 on a shaft 19. The sharft 19 is also rocked by cam, followers 16 and 17, Fig. 5, having rollers 16<SP>1</SP>, 17<SP>1</SP> respectively which engage assemblies of cams 8<SP>1</SP>, 8<SP>2</SP>, 8<SP>3</SP> and 9', 9<SP>2</SP>. 9<SP>3</SP>, 9<SP>4</SP> respectively on a shaft 6. The followed 18 has a roller 18<SP>1</SP> engaging the cam discs 10<SP>1</SP>, 10<SP>2</SP>, 10<SP>3</SP> on the shaft 6, driven through pinions 13, 14 and 15, Fig. 1, from the printing drum 1. A cam 7, Fig. 5, for controlling the impression roller during the printing of a heading, and a cam 11 which ensures uninterrupted contact of the impression roller 5 with the drum 1 for printing the whole of the text on the master sheet are also mounted on the shaft 6. The assemblies of cams 9<SP>1</SP>, 9<SP>2</SP>, 9<SP>3</SP>, 9<SP>4</SP> and 10<SP>1</SP>, 10<SP>2</SP>, 10<SP>3</SP> are axially adjustable along the shaft 6 to effect printing of one, two, or three lines of text on the master sheet and angularly adjustable by pawls 29, 30 and 31, 32 respectively and spring- loaded ratches, not shown, to permit the raised portions of the cams being advanced by one, two or three lines as required. The assembly of cams 8<SP>1</SP>, 8<SP>2</SP>, 8<SP>3</SP>, together with the cam 11, are axially adjustable on the shaft 6. Specification 735,181 is referred to.
Patent GB-1353794-A (GB)
Title: Voltage multipliers
IPC: H05B41/282
Filed: 1971-04-29
Abstract: 1353794 Cardiac pacemakers WILSON GREATBATOH Ltd 29 April 1971 [29 April 1970] 12153/71 Heading A5R [Also in Division H2]  A voltage multiplier (e.g. for supplying power to a cardiac pacemaker) comprises a plurality of capacitors 86, 89, 92 charged in parallel from a supply 83 and discharged in series via a load 99 under control of triggered switching devices such as transistors 100, 101, 102. The load 99 is connected in the charging path of one of the capacitors 92 so that the average load current over a complete cycle is zero. As described, the source 83 may be a 0.8V rechargeable cell or a nuclear battery delivering from 0.2-0.75V. The discharging transistors 100..102 may be triggered by a pulse generator 120 which may comprise a low power oscillator driven by a tunnel diode r.f. converter. The trigger pulses are coupled to the discharging transistors 100, 101, 102 via an emitter follower 124. Voltage regulation. During each cycle, whenever the voltage across load 99 (simulating the pacemaker) reaches a value determined by the setting of potentiometer 135, transistor 136 becomes conductive short-circuiting the pulses to emitter follower 125 and terminating the charge. The transistors 100, 101, 102 may be germanium, silicon or field-effect transistors.
Patent GB-1020118-A (GB)
Title: Improvements relating to automatic telephone and like selective systems
Inventor: DRAKE BERNARD
IPC: H04Q1/24
Filed: 1964-03-23
Abstract: 1,020,118. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 22, 1964 [March 23, 1964], No. 12154/64. Heading H4K. In an arrangement for causing a selector GS seized by a test unit TU over an access switch AE to select a test line TL leading back to the test unit, earth is connected to the test wiper 10 over a rectifier MR1, while the test wire 3 of the line TL is connected to an anti-intrusion potential of about - 7 volts from a potentiometer comprising a resistor R1, rectifier MR4 and Zener diode MR5 in order to prevent the selection of the line by any other selector. When the selector GS reaches the test line, earth on test wiper 10 switches over the trigger circuit VT1, VT2 so that VT2 becomes conducting and relay T4 operates. Earth is removed from wiper 10, the anti-intrusion potential is disconnected, and the normal test is carried out by relay H. The arrangement shown assumes that the idle condition is represented by - 50 volts on the test wire, but modifications are mentioned in which the idle condition is - 100 volts, or merely the absence of earth.
Patent GB-236699-A (GB)
Title: Improvements in or relating to diaphragms for use in sound reproduction
IPC: H04R7/00
Filed: 1924-05-17
Abstract: 236,699. Graham, J. May 17, 1924. Diaphragms.-A built-up diaphragm for sound reproduction comprises two or more layers a of undressed pig skin joined together by any suitable adhesive b, for example the gum which exudes from lignum-vitµ wood when heated. For head-phones and loud-speakers, iron filings are disposed between the layers in well-known manner, or otherwise incorporated.
Patent GB-789389-A (GB)
Title: Improvements in or relating to method of and apparatus for applying caps to containers
Inventor: JACKSON JOHN MAXWELL
IPC: B67B3/064
Filed: 1955-04-27
Abstract: 789,389. Closuring containers. METAL BOX CO., Ltd. April 18, 1956 [April 27, 1955], No. 12175/55. Class 125(2). [Also in Group XXX] In applying to containers preferably having beaded rims, caps 40 with downwardly extending skirts 41 having out-turned beads 42 at their edges, the caps are held, each in horizontal disposition, in superimposed relation in a vertical feed guide from which the lowest is dropped on to a container underneath. A continuously or intermittently moving conveyer 2 having container-locating pockets 3, Fig. 1, carries the containers beneath the cap-dropping mechanism 10 and a further conveyer 8 carries the containers with caps to a cap-crimping machine 9. At the cap-dropping station, the containers are located in the pockets 6 of a starwheel 5 which is keyed to and rotates with the right-hand sprocket of conveyer 2. A stationary axle, not shown in Fig. 3, extending up through the conveyer sprocket and the star wheel 5 is fixed to a body 14, to the top of which is fixed an annular structure 22, 23 extending upwardly from which are vertical rods 39 constituting the cap feed guide. The star wheel 5 carries internally a gear ring 17 driving a shaft 19 through gear 18. This shaft is coupled through a spring-loaded dog or other clutch 45, 45a to a shaft 43 carrying a gear 24. This gear, through train 25, 27, rotates a ring gear 30 within the structure 22, 23 and the ring gear, through gears 31 rotates threaded members 34 disposed around the opening beneath the cap feed guide. The screw threads on members 34 engage the beads 42 on the caps to move them down the guide, the threads being of increasing pitch to accelerate the caps. The threads end abruptly so that the lowest cap drops cleanly on to the underlying container. Pivoted to the starwheel 5 are sensing fingers 61, one for each socket 6, adapted to extend into the socket and, as the star wheel rotates, a fixed abutment 65 carried on the cover 15 of body 14 engages the tail 59 of each sensing finger 61 which is thus swung into its socket. If a container be now fed into the socket it will push the finger back. If no container be fed, a cam surface 63 on the tail 59 engages under the end 58 of a lever 55 pivoted at 56 to the cover 15 and the other end 57 of the lever is thus lowered. This lowering moves down the tail 52, Fig. 3, of a lever 49 pivoted at 50 in the structure 23 so that a nose 48 rises to throw out the clutch 45, 45a to stop the rotation of threaded members 34. Hence no cap will be dropped on to the socket without the container. The clutch may be thrown out by a solenoid, actuated, upon absence of a container, by a photoelectric device or a spring controlled switch.
Patent GB-750131-A (GB)
Title: Improvements in or relating to the continuous casting of metal
IPC: B22D11/00
Filed: 1952-05-14
Abstract: 750,131. Continuous-casting machines. BRENNAN, J. B. May 14, 1952, No. 12215/52. Class 83 (1). In apparatus for continuous-casting, molten material flows from a reservoir such as 5, Fig. 1, to a cooling-die 7, and a plunger 4 is reciprocated within a guide 8 to engage the solidified end of the billet 11 to urge it through the die. The plunger 4 is made of ceramic and is attached to a disc 2 guided in the sleeve 8 and reciprocated by a hydraulic piston, or by a crank, or a lever 1 and link 3. The reservoir is heated by a highfrequency coil 9 and the die is cooled by a metal sleeve 10 having a passage 10a for coolant. The disc 2 and the upper end of the die 7 may also be cooled at 2a. The molten metal flows by gravity into the die through holes 8a in the guide 8. A protective atmosphere may be applied to the metal 6 and to the billet 11, and the apparatus may be enclosed in a vacuum &c. chamber, as in Specification 748,643. Extraction of the billet may be facilitated by rolls &c. In a modification, for producing tubular billets, a hollow plunger 12, Fig. 2, reciprocates between a guide 13 and a core 14, the latter being supported by pins 15 and the plunger having slots 12a to clear the pins. The molten metal flows by gravity through holes 8 or may be forced by fluid pressure on the surface of the metal 6, and the pins 15 may be extended downwardly into the cooling zone to divide the billet 11 into a number of strips of arcuate section, or into rods of round or other section. Flat strips may be produced by making the plunger and core of flat-faced rectangular section, or the hollow billet may consist of thick strips joined by thinner sections. The core 14 also may be reciprocated vertically or circumferentially. In another modification a plunger 24, Fig. 5, is reciprocated, by a crank 22 and motor 21, in a guide 26 apertured as at 26a to admit molten metal between the plunger and cooled die 30. The hollow billet 11 is slit by rolls 33 engaging the plunger, and the separate strips 34 are wound on drums 35 which prevent the billet from being drawn upwards by the plunger. Lubricant may be supplied between the billet and plunger, at 39 by a pipe 36. The slitting- rolls 33 may be replaced by feed-rolls, to produce continuous tubing.
Patent GB-552193-A (GB)
Title: Improvements in and relating to the joints of tubes and plates
IPC: F22B37/10
Filed: 1941-09-22
Abstract: 552,193. Pipe joints. ADAMSON & CO., Ltd., D., and PARKYN, P. A. W. Sept. 22, 1941, No. 12218. [Class 99 (i)] In a joint for a boiler in which a tube 11 is expanded in a hole in a tube-plate 12 a groove or grooves in the wall of the hole contain a ring or rings of fusible metal or metal of low melting point such as lead. As shown two half rings are arranged in one groove 9 and two half rings in a registering groove 10 in the tube, flat faces of the rings engaging. Other grooves may be provided in the tube plate into which the tube is expanded.
Patent GB-353022-A (GB)
Title: Improvements in or relating to apparatus for recording or reproducing sound on or from film
Filed: 1930-04-17
Abstract: 353,022. Optical sound-reproducing apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and ROUND, H. J., Westfield, Muswell Hill, both in London. April 17, 1930, No. 12229. [Class 40 (ii).] Comprises optical sound reproducing apparatus in which the film is passed round a composite pulley consisting of two parts, one of steel and the other of glass. In one construction the pulley, rotated by an axial shaft 1, Fig. 1, comprises a cylindro - conical steel portion 3 and a glass member 4 held against the steel portion by a screw 7 and washer 6. Sprocket teeth 2 are carried by the steel portion and sprocket teeth 10 are carried by a ring 5 embedded in the glass portion of the pulley. A light beam after passage through the film is reflected by the silvered sloping face 4a of the glass portion on to a light sensitive cell 9. In an alternative construction, Fig. 3, the pulley comprises a cylindrical steel portion 3<1> and an annular glass member 4<1>. Light passing through the sound record track is reflected by a stationary mirror 11 on to the light sensitive cell. The pulley is grooved at the part over which the sound track passes, and carries driving sprockets for the film.
Patent GB-222794-A (GB)
Title: Improvements in cocks
IPC: F16K7/02
Filed: 1924-05-19
Abstract: 222,794. Klein, J. May 19, 1924. Elastic valves.-In a valve or cock having a closing element in the form of a section of thick india-rubber tube 5, Figs. 1 and 2, which is compressed axially so as to close the water passage through the tube, the casing 11 is made removable from the water inlet conduit 1, as shown, the right-angled termination A of the said conduit being inserted through a slot 10 and interposed between the screwed spindle 14 and the annular compression washer 4. The cock may be fitted with a doubly-curved removable outlet nozzle 8, as shown, or with a straight outlet.
Patent GB-109098-A (GB)
Title: Improvements in or relating to Trolley Poles for Electric Cars and the like.
Inventor: WARSOP THOMAS
IPC: B60L5/06
Filed: 1916-08-31
Abstract: 109,098. Warsop, T. Aug. 31, 1916. Trolly heads.-Trolly pulleys are kept in alinement with the pole by means of a spring-pressed plunger D coacting with a flat or V.groove on the trolly spindle A, or a portion of the spindle may be made of an oval or V shape in section. The plunger may be withdrawn by means of a solenoid which is energized when the pulley engages the conductor. The compression of the spring is adjusted by the screw H. In a modified construction, the plunger is pressed against the flat &c. by a pull on a cord connected to a right-angled lever attached to the plunger, and the plunger is withdrawn by a flat spring. Reference has been directed by the Comptroller to Specifications 9511/00, 19746/05, and 5235/09.
Patent GB-494079-A (GB)
Title: Flexible wooden sole
IPC: A43B13/08
Filed: 1938-04-25
Abstract: 494,079. Flexible wooden soles for footwear. FERET, A. April 25, 1938, No. 12324. Addition to 463,177. [Class 17 (ii)] A peripheral groove g is provided around the whole or a portion including the toe end of the sole of the parent Specification for the reception of the margin of an upper h. The front end b<1> of the flexible band b which connects the transverse strips forming the sole is terminated a short distance from the toe end.
Patent GB-1097855-A (GB)
Title: Proximity fuze
Inventor: LAGERSTROM KARL OLOF GUNNAR
IPC: F42C13/00
Filed: 1966-03-21
Abstract: 1,097,855. Proximity fuzes. DIRECTOR GENERAL OF FÍRSVARETS FABRIKSVERK. March 21, 1966, No. 12351/66. Heading F3A. A projectile proximity fuze which radiates sound or electromagnetic waves which are partially reflected by the target and received by the fuze, comprises a number of series 1 or parallel connected impedance elements 5 in an electrical circuit for determining the sensitivity of the fuze, each impedance element being located inside an envelope 4 of the fuze and connected to conductors 2 or 5, respectively, which penetrate the wall of the envelope but which are electrically insulated from the latter by means of an insulation member 3, the conductors being readily cut through by means of a knife so as to influence the impedance of the connected impedance elements thereby effecting stepwise adjustment of the sensitivity of the fuze.
Patent GB-1089704-A (GB)
Title: Process for preparing pyrocatechol-mono-hydroxyalkyl ethers
IPC: C07C43/23
Filed: 1966-03-21
Abstract: Monohydroxyalkyl ethers of catechol are prepared by reacting equimolar amounts of molten catechol and a C2- 4 alkylene oxide, in presence of Fe or a salt thereof.  The preparation of the 2-hydroxyethyl, 2-hydroxypropyl and 2-hydroxy-3-chloropropyl monoethers is exemplified.
Patent GB-288447-A (GB)
Title: Improvements in and relating to oil filters for internal combustion engines
IPC: B01D35/00
Filed: 1927-05-09
Abstract: 288,447. Rackham, G. J., and Leyland Motors., Ltd. May 9, 1927. Filtering lubricant. -Oil thrown from one or more of the connecting-rods 1 or other moving parts within the crank case of an internal - combustion engine is collected in one or more troughs 2 integral with or secured to the upper part of the crank case, and falls through one or more conduits 3, which may be cored in the crank case walls, to the underside of a filter 5, through which it passes upwards into the sump 7, whence it is circulated by a pump draining through a strainer 8. The filter 5 is carried by a detachable cover 6 on the bottom of the crank case.
Patent GB-962573-A (GB)
Title: Improvements relating to helicopter rotor
IPC: B64C27/615
Filed: 1961-04-06
Abstract: 962,573. Helicopters. KAMAN AIRCRAFT CORPORATION. April 6, 1961 [July 19, 1960], No. 12462/61. Headings B7G and B7W. A helicopter blade, pitch adjustment flap 24 is controlled via linkage 158, 150, 146, 136 on the outboard blade portion 16, and a linkage 130, 38, 36, 34 on the inboard portion 120, and connected via linkage 32, 30a to a pilot actuated mechanism, Fig. 3 (not shown). Bearings between a part 126 of portion 16 and portion 120, Figs. 8, 12 (not shown), permit limited relative rotation between portions 16, 120 about an axis radial of hub 22. A bellcrank 238 pivoted to bracket 194 on portion 120, Fig. 13, connects a lever 218 to a split sleeve element 226 clamped to rotate with part 126. For positive blade pitch, links 136, 146 are moved outwardly of the hub by rotating lever 130 about pivot 132, and so producing a negative rotation of flap 24. As the pitch of portion 16 increases positively, bell-crank 238 is rotated to move link 130 clockwise about pivot 128 to move links 136, 146 inwardly to move flap 24 positively relative to portion 16 to prevent the increasing tendency of portion 16 to rotate positively. Hence only a small torsional resistance is needed (a strap between portions 16, 120, Fig. 8, not shown), to maintain the relationship of the flap and blade. A spring-loaded, centrifugally released catch prevents relative rotary movement of portions 16 and 120 when the rotor is stationary or rotating below a predetermined speed, Figs. 8, 11, 12 (not shown). Specification 676,398 is referred to.
Patent GB-1341603-A (GB)
Title: Correlators
IPC: G06G7/19
Filed: 1971-04-30
Abstract: 1341603 Correlators COMMISSARIAT A L'ENERGIE ATOMIQUE 30 April 1971 [26 May 1970] 12493/71 Addition to 1187491 Heading G1U In a correlator of the kind disclosed in Specification 1187491. Samples of the input signal X(t), taken (22-24) at the frequency of the shift register clock pulses, are supplied to the signal inputs of the switches 6 rather than the continuously-variable signal X(t) itself.
Patent GB-504773-A (GB)
Title: Improvements in bodies for passenger motor vehicles
IPC: B62D29/04
Filed: 1938-04-27
Abstract: 504,773. Vehicle roofs. VOSWINCKEL, K. G. April 27, 1938, No. 12571. Convention date, April 30, 1937. [Class 108 (i)] The roof of the body of a passenger motor vehicle is formed over substantially its whole area of transparent material, such as artificial resin, without the introduction of supports dividing such area, in order to increase the field of view of the occupants. The roof may be rounded or arched and may be secured to the body at its edges, e.g.. by embedding the edges in grooves, or may be wholly or partially removable, slidable, or adapted to be rolled or folded. To protect the occupants from dazzle &c. a roller-blind or blinds of lightabsorbing &c. material movable longitudinally, transversely, or otherwise, or curtains or sun-shields capable of being rolled, folded, &c., may be provided inside the vehicle. Alternatively or. additionally, a non-transparent, weather-proof covering, e.g. of rubber &c. may be stretched over the roof.
Patent GB-494965-A (GB)
Title: Method of and apparatus for treating molding sand
IPC: B22C5/04
Filed: 1937-05-03
Abstract: 494,965. Sand mixing &c. apparatus ; ball-and-ring mills. TATE, F. R. (Beardsley & Piper Co.) May 3, 1937, No. 12598. [Classes 59 and 86] In apparatus for repeatedly and alternately squeezing and scattering moulding sand in order to aerate it, the squeezing is effected by spherical bodies having elastic friction faces. The sand is placed in a fixed annular trough 15 around which two balls 25, with rubber coverings 25a, are pushed by rollers 26 carried by a rotating head 16. The sand, pressed against the wall 15b by the balls 25, is scraped off and thrown inwards by blades 28 and collected and reapplied to the wall by blades 27 to be acted on by the following ball, the blades also being carried by the head 16. With a trough 5 feet in diameter and the head rotated at 90 R.P.M. seven cubic feet will require 45 seconds treatment and can then be discharged by a door, not shown.
Patent GB-215956-A (GB)
Title: Improvements in and relating to antifriction wheel bearings
IPC: F16C35/02
Filed: 1923-05-10
Abstract: 215,956. Bachelor, D. H., Bachelor, J. B., and Cockey & Sons, Ltd., E. May 10, 1923. Rectilinear-motion bearings. - Bearings for spirally guided gas-holders, of the type in which rollers bear on opposite sides and on the face of a guide rail, have the rollers mounted in a single frame. As shown, rollers 9, 10, 13 are journaled in a main frame 2, the rollers 9, 10, bearing on opposite sides and the roller 13 bearing on the face of a spiral guide rail 1. The rollers 9, 10, which may be grooved to engage the bulb of the guide rail are in a horizontal plane and the axis of the roller 13 is at right angles to the longitudinal axis of the guide 1.
Patent GB-294311-A (GB)
Title: Improvements in locomotives
IPC: B61C1/00
Filed: 1927-05-11
Abstract: 294,311. Eley, C. V. A. May 11, 1927. Steam-electric vehicles comprise water-tube boilers 16, 17, 18, a turbine 5. dynamo 6, electric motors 7 and a rear vehicle 8 carrying cooling and condensing plant. The gases from the furnace 19 may pass by openings 20 into passages 22, Fig. 3, in a jacket 21 or into the atmosphere by way of a funnel 24 fitted with a damper 25. If the damper is closed the smoke passes rearwardly to an absorbing device constructed as described in Specifications 199,425, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], or 285,544, [Class 55 (ii), Gas manufacture &c.]. Air for the furnace enters at 30 and may pass by way of passages 23, 31, 32 to the furnace. The driving-wheels a are driven by worms 34. The jacket 21 may be fitted with a partition 44 and with tubes 45 for superheating used steam. The boilers may be of the construction described in Specification 285,154, [Class 123 (ii), Steam generators].