baber/WOPTO huggingface dataset:
Patent GB-408227-A (GB)
Title: Improvements in signs
IPC: G09F11/29
Filed: 1932-07-30
Abstract: 408,227. Changing signs. KEHRMANN, H., 32, Avenue Belle Vue, Nice, France. July 30, 1932, No. 21531. [Class 3 (i).] A display band 3 is wound step-by-step from a roller 9 on to a friction disc driven roller 11, and returns either in one movement or step-bystep. A flexible shutter 2 is wound on and off an upper roller 40 and a lower spring roller to conceal the band 3 when moving. An endless translucent colour filter 4 is kept in continuous motion to produce colour effects on the band 3 by transmitted natural or artificial light. The mechanism for effecting the intermittent movement of the band 3 consists of a pivoted pawl 19 pressed against the band 3 by a counterweight 20<1> and by a spring 23 acting through a rod 21. Spaced openings 181 in the band margin allow the pawl 19 to move into engagement with the band, which drags the pawl down and allows a spring-pressed brake 25 to engage the roller 9 and stop the band. A cam 28 on a spindle 8 geared to the driving shaft 6 releases the brake 25 after an interval of time and allows the band 3 to proceed ; a disc 29 on the spindle 8 carries pins 30 which move the rod 21 to withdraw the pawl 19 from the band openings. At the end of the wind a cam 35 on a subsidiary spindle 38 pushes a rod 34 to engage by a clutch the roller 9 with its shaft 10 and to wind the band 3 back on to the roller 9. The shutter 2 is drawn up after each movement of the band 3 by a clutch actuated by a cam 39 on the spindle 8 and is held against movement during the reversal of the band 3 by a clutch rod 341 engaging the rod 34. Magnetic clutches may be employed, or the band 3 may be wound up by reversing the motor.
Patent GB-532334-A (GB)
Title: An improved process for making road tar
IPC: C10C1/00
Filed: 1939-07-25
Abstract: 532,334. Road tar. GLUCKLICH, A. July 25, 1939, No. 21636. [Class 22] A viscous road tar is prepared by adding conifer wood tar and a condensing agent such as zinc chloride or sulphuric acid to a crude tar such as gas tar or coke oven tar and heating to 220-250‹C. to remove volatile constituents. Solutions containing the tar may be used cold for street constructional purposes.
Patent GB-300678-A (GB)
Title: Improvements relating to pipes, barrels or like containers
IPC: F16L9/01
Filed: 1927-08-17
Abstract: 300,678. Ivitsky, V. Aug. 17, 1927. Spigot-and-socket joints. - Relates to pipes &c. comprising an intermediate wall 3 composed of a number of longitudinally arranged wooden or other members, and inner and outer walls one or each of which is composed of a series of rings 1, 4, with, if desired, an intermediate or other layer 2 of asphalt, thin metal, or indiarubber. In connecting two such pipe sections together the longitudinal members are staggered, . alternately projecting and leaving gaps, so that the projecting members of one section enter the gaps in the other.
Patent GB-929173-A (GB)
Title: Improvements in or relating to timing devices
IPC: G04F8/08
Filed: 1958-07-07
Abstract: 929,173. Musical timing apparatus. L. SALMON. July 7, 1959 [July 7, 1958; March 25, 1959], Nos. 21687/58 and 10390/59. Class 139. A timing apparatus is started by the commencement of a musical note. The timing apparatus may be of the stop-watch type arranged to be started and stopped by the action of a solenoid. The latter may be energized directly by contacts operated by the depression of a key in a keyboard instrument or by sound-operated electronic relay energized by a microphone arranged to pick up the sound. The duration of the note may be indicated by the rotation of a pointer from a zero position or by the rotation of a marked disc past a datum line or past a slot in a cover-plate. Alternatively, the disc may be moved under a pen, also arranged to move in a direction perpendicular to the direction of movement of the disc, so as to record also the pitch of the note. Zeroizing of the indicator after each note may be effected manually or after a delay controlled by a dash-pot mechanism. In a preferred embodiment however, the disc is provided with a plurality of different contiguous zero positions differently coloured and positioned at different radial distances as indicated by the shaded portions in Fig. 2. The slot in the front plate 12, Fig. 1, is then provided with a cursor 15 which is set adjacent the colour showing through the slot, and the duration of the note may then be read off opposite the cursor. Specification 811,259 is referred to.
Patent GB-500356-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/08
Filed: 1937-08-07
Abstract: 500,356. Electron multipliers; electron gun. BOSCH, F. J. G. VAN DEN. Aug. 7, 1937, Nos. 21788/37 and 20776/38. [Class 39 (i)] In an electron multiplier the thermionic cathode is enclosed in a tube 12, Fig. 1, open at the end facing the first secondary - emitting electrode 16, the electron flow being controlled by one or more grids 15 of wire, mesh or like form. In a modification the grid 39, Fig. 4, surrounds the cathode and a concentrating electrode 40 is placed in front of the enclosing tube 38. A number of secondary-emitting electrodes 16-20 are used, preferably with mica separators 24 as described in Specification 500,189. A signal potential may be applied to either of the grid electrodes or to the enclosing tube and the remaining electrodes have steady biasses to control the electron density.
Patent GB-464185-A (GB)
Title: High frequency electric wave transmission system
IPC: H04B3/52
Filed: 1936-08-07
Abstract: 464,185. Electric resonant units. STANDARD TELEPHONES & CABLES, Ltd. Aug. 7, 1936, No. 21816. Convention date, Dec. 31, 1935. Addition to 420,447. [Class 40 (iii)] [Also in Groups XXXVI and XXXIX] Relates to a transmission line of the kind described in the parent Specification, in which electric waves of the order of centimetres are propagated along or within a " dielectric guide," which may be simply a rod of some substance with a high dielectric constant such as fused quartz, or a rod of dielectric provided with a metal sheath such as copper, or a single hollow conductor. Such guides are characterized by the fact that there is a dielectric " boundary " or discontinuity surrounding the medium in which the waves travel. Different types of waves may be created, the electric and magnetic components being always in space and time quadrature. In. effect, displacement currents in the dielectric are continued as conductive currents in the tube. Being confined within the guide they do not set up external fields liable to create interference ; and dielectric losses are nil. Some types of waves, as shown for instance in Figs. 4A and 9, are separated into sectorial regions. According to the invention, the wave guide is divided by two or more conducting partitions which lie along radial planes, as shown for instance at 6 in Fig. 10. Each of the compartments so formed carries an independent wave which may be separately modulated for multiplex working. Alternatively, the guide may be built up of several segments of triangular or other cross-section, as shown in Fig. 14. In Fig. 15 television signals from 18 are applied to a central guide 15, and telephony signals from 17 are applied across the guide and an outer tube 1, which together with the guide form an ordinary co-axial transmission line. To terminate the guide so that no end-reflection takes place, a transverse resistive disc 20, Fig. 17, is spaced a quarter wavelength away from a closed copper cap 21 ; or as shown in Fig. 18 a diametrical wire 22 is connected to a variable load 24, and is backed by a reflecting piston 25. Fig. 19 shows a typical balanced-impedance coupling between a circular magnetic wave (started in a co-axial transmission line 27, 28) and the dielectric guide 1. In Fig. 24 current from a source S is fed to a series of arc-shaped wires 40 to start a circular electric wave along the guide line, whilst Fig. 28, shows the direct coupling of a shielded transmission line 52 to a guide line 1 through impedance-matching discs 56 and spheres 57. Because the guide comprises distributed series inductance and capacitance, associated with shunt capacitance, it acts as a high - pass filter with a definite cut-off frequency.
Patent GB-507814-A (GB)
Title: Improvements in pipe joints
IPC: F16L41/02
Filed: 1938-07-23
Abstract: 507,814. Pipe joints. PARFITT, A. W. (Zutphen, A. Van, and Ten Noort, J. A. H. op.). July 23, 1938, No. 21901. [Class 99 (i)] In a pipe joint having a sleeve e in the ends of which pipes d<1>, d<2> are held by packing-rings h<1>, h<2> and clamping-rings f<1>, f<2>, the sleeve has a central collar k in which are screw-threaded holes which can take screw-threaded plugs, or when required adaptors l or cocks m for the connection of branch pipes. The sleeve e may be of concrete, in which case the screwed holes are formed in metal bushes in. the concrete.
Patent GB-975164-A (GB)
Title: Bunion splint
IPC: A61F5/01
Filed: 1963-05-31
Abstract: 975,164. Bunion splint. SCHOLL MFG. CO. Ltd. May 31, 1963 [May 31, 1962], No. 21926/63. Heading A5R. A bunion splint comprises an elongated shank 7 with a resilient clip 12 mounted at one end and a toe-embracing member 9 at the other end thereof. Dome 8 on shank 7 receives the bunion. The shank 7 may be moved relatively to the clip 12 by being connected thereto through loops 13 and 14 or the shank 7 and clip 12 may be made in one piece. A heel seat 17 may be connected to the heel clip. The shank may be provided with a longitudinal rib to strengthen it.
Patent GB-394155-A (GB)
Title: Improvements in and relating to vehicle head-lamps
IPC: F21V11/16
Filed: 1932-08-05
Abstract: 394,155. Reflectors. ADAMS, B., 14, Bedford Chambers, Covent Garden, London. Aug. 5, 1932, No. 22021. Convention date, June 6. [Class 97 (i).] In a vehicle headlamp, a small opaque shield, placed close in front of the source of light and provided with an inner reflecting surface 3, has an outer convex reflecting surface 4, in front of which is a maroon, magenta, or similarly coloured screen, so that light from an external source falling on that convex surface is reflected as a coloured divergent beam on to the main reflector 14. The colour screen in the form shown comprises a varnish coating, which may extend over the lower face and sides of the shank 1 forming part of the shield. The shank 1 is hollow, and grips the limbs 10 of a spring clip 11 which can be attached to the cap 12 of the electric bulb. The inner and outer reflector may be formed separately. Specification 394,154, [Group XI], is referred to.
Patent GB-793187-A (GB)
Title: Improvements in or relating to stop motion
IPC: D05B69/22
Filed: 1954-07-28
Abstract: 793,187. Gearing for starting and stopping machinery. REECE CORPORATION. July 28, 1954 [March 18, 1954], No. 22105/54. Class 80 (2). A clutch-brake control for stopping button and buttonhole sewing-machines, paper box making and clicking machines in a predetermined (e.g. needle up) position, includes a driving member having small rotational momentum which is stopped first and initiates brake means for subsequently stopping the machine itself. The low momentum part is a shaft 36 having cam, worm or screw-threaded connection 46 with a clutch-brake' disc 25, in permanent drive connection through an axially slidable tongue 38 with a main gear 42 driving the machine. On the left of the disc 25 is a clutch-disc facing 18 on an axially fixed, continuously-rotating drive pulley 15, and on the right an axially yieldable non-rotary cone or disc brake 24. Starting the machine is by depressing a treadle 95, Fig. 7, which pulls a notched lever 60 away from a stop 63, thus releasing the previously detained end 55 of a clutch-key 48, which is then urged by a spring 57, Fig. 10, along a diametral slot formed by a forked end 144 of the shaft 36, into engagement with a drive-projection 52 inside a boss of the drive-pulley 15, thus positively clutching the shaft 36 to the pulley 15. Initially the friction clutch disc 25 is in its rightward position held from rotation by the brake disc 24, so that the rotation of the shaft 36 causes the clutch disc 25 to screw leftwards along it, the brake disc 24 following by spring load 32, until axially slidable adjustable guide-plungers 23, secured to the brake disc, contact adjustably fixed stops 28, thus arresting the brake disc. The clutch disc 25 then leaves the brake disc 24 and frictionally engages the driving clutch-pulley 15 with a torque-responsive axial force to drive the machine gear 42. Stopping is by release of the treadle 95, whereupon the end 55 of the rotating clutch-key 48 rides up a cam surface 73 into a notch 71 in the spring-returned lever 60, thus declutching and positively stopping the screwshaft 36 immediately. Machine momentum then screws the clutch disc 25 rightwardly along the now-stationary shaft 36 to declutch, contact and take along the brake disc 24. As the brake-springs 32 yield, a gradually increasing torque-responsive brake-torque is applied to the clutch disc 25 and hence the machine, until nuts on the brake-guides 23 contact the fixed casing, which finally stops the machine in the required adjustable position.
Patent GB-644600-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B9/02
Filed: 1947-08-11
Abstract: 644,600. Reciprocating pumps for lubricant. SATZGER, E. Aug. 11, 1947, No. 22218. Convention date, Nov. 4, 1943. [Class 102(i)] A reciprocating pump for lubricant comprises a number of pump units each having a supply piston 8 which delivers lubricant from a reservoir 37 to the working space 21 of a variable-stroke measuring piston 12 from which any excess lubricant escapes through an overflow, the cylinder 19 of the measuring piston being formed in the supply piston whereby during the intake stroke of the latter the measuring piston abuts a screw 53 and is forced into its cylinder thereby delivering lubricant to an outlet 35 from whence it drops into a bowl 36 leading through a passage 36<SP>11</SP> to the working space 34 of a fixed-stroke delivery piston 11, disposed parallel to and connected by a crosshead 14 With the supply piston, by which delivery piston it is delivered to a point of use. The supply piston is actuated by an eccentric 2 through a rocking lever 3. On the downstroke of the supply piston the lubricant is forced from its working chamber 44 through a groove 59 and passages 58, 24, 23 into the 'working space 21 of the measuring piston forcing the latter upwards until its shoulder 18 abuts the crosshead 14 whereupon any further lubricant delivered thereto escapes past a check valve 20 and passage 22<SP>1</SP> into the reservoir. During the next upward stroke the measuring piston abuts the screw 53, which is adjustable to vary the stroke of the measuring piston and is pressed into its cylinder forcing the oil from the space 21 through passages 29, 29', which are then in communication, and recess 30 in the delivery piston to a drip pipe 35 from which the oil falls into the bowl 36 past a filter 38<SP>1</SP> to the working space 34 of the delivery piston. Upon the next downstroke thereof the oil is forced past a spring loaded piston valve 39 which opens a delivery passage 42 communicating with an outlet nipple 33. Oil leaking past the valve 39 is collected in a groove 51 and returned through a passage 52 to the bowl. In another embodiment the measuring piston is secured to the adjusting screw 53 and the excess oil supplied thereto by the supply piston escapes to the reservoir through an aperture in the wall of the cylinder 19 which is uncovered during its movement. Check valves are also fitted in the communicating passages between the working spaces 44 and 21 and between the latter and the drip pipe 35. The excess oil escaping from the measuring cylinder is used to lubricate the working parts of the pump.
Patent GB-786111-A (GB)
Title: Dynamic microphone having a preferential response in one direction
IPC: H04R1/38
Filed: 1955-08-03
Abstract: 786,111. Directional microphones. AKUSTISCHE UND KINO-GERATE GES. Aug. 3, 1955 [Aug. 7, 1954; Dec. 1, 1954], No. 22249/55. Class 40 (4). In a dynamic microphone having a preferential response in one direction, the single diaphragm has behind it an air chamber, the rear wall of which is substantially parallel to the diaphragm and of the order of one millimetre distant therefrom, this chamber being connected to the atmosphere by an acoustic path, the length of which is substantially larger than the wavelength of the highest frequency to which the microphone responds, and the total cross-sectional area of the opening(s) at the chamber end of which is such that the diaphragm forms with respect to the path a terminating impedance substantially equal to the characteristic impedance of a path having opening(s) of the same total crosssectional area and of an infinite length, a second air chamber being provided, together with frictional resistance means connecting the second chamber to the first chamber. As shown diagrammatically in Fig. 1, the first chamber 2 behind the diaphragm 1 has a tube 3 inserted therein, to constitute the acoustic path to the atmosphere, and an acoustic frictional resistance 4 disposed between the first chamber 2 and the second chamber 5. If the tube 3 is terminated at the diaphragm end in the characteristic impedance of an infinitely long tube no reflections occur and standing waves are avoided. The magnitude of the impedance of the diaphragm depends upon the magnitude of the frictional resistance 4, the rim clamping of the diaphragm and the returning force of the chamber 5 and the Specification includes equations for evaluating the various parameters to obtain the required impedance value. Several embodiments are described together with their electrical analogues.
Patent GB-702258-A (GB)
Title: Flat type switch
IPC: H01H67/12
Filed: 1948-12-17
Abstract: 702,258. Electric selectors. AUTOMATIC ELECTRIC LABORATORIES, Inc. Dec. 17, 1948 [Dec. 18, 1947], No. 22282/52. Divided out of 702,194. Drawings to Specification. Class 40 (4) In a switching apparatus of the X, Y coordinate type wherein a primary carriage movable in the X direction carries a secondary carriage movable thereon in the Y direction, and the switch contacts are mounted on the secondary carriage, the X, Y carriages are movable away from their normal positions by a spring under the control of a common escapement and returned to normal by a transmission mechanism. A drive magnet is selectively associated with the escapement or tne transmission mechanism according to the switch operation desired. The detailed description is contained in Specification 702,194 (as open to inspection under Sect. 91).
Patent GB-511814-A (GB)
Title: Improvements in drop-hammers
IPC: B21J7/44
Filed: 1938-07-27
Abstract: 511,814. Motor mountings. OECKL, O. July 27, 1938, No. 22351. [Class 35] [Also in Group XXII] The trip of a drop hammer is raised by ropes passing around a drum constantly driven by an electric motor 5 capable of swinging freely .about an axis x-x by means of a hinge pin 5a. The motor is connected with the frame 3 by a flexible coupling 6, a damping spring device 7 being provided. The few turns of ropes around the drum only follow movement thereof when a tug is exerted at the common end 10. A twoarmed lever 11 above the centre of gravity of the trip serves to ensure uniform loading. Bolts 13, adapted to be thrust into the path of the trip in the upper position, allow the lever 11 to be adjusted by a one sided pull on the ropes without the trip being raised.
Patent GB-1603686-A (GB)
Title: Current transformer system
IPC: H01F27/06
Filed: 1978-05-25
Abstract: To protect the secondary circuit of a main current transformer to be connected upstream against unwanted disconnection, the current transformer arrangement, having at least one ring core transformer (RW), contains a conducting body (LK) acting as primary winding which passes through the ring core (RK), and a terminal connection at the primary side which is constructed as a plug-in device (ST) and engages end sections (KE1, KE2) on both sides of the conducting body (LK). This produces a rugged and reliable-contact connection to the secondary circuit of the main current transformer to be connected upstream. <IMAGE>
Patent GB-751067-A (GB)
Title: Improvements in electrically driven kitchen machines
IPC: A47J43/046
Filed: 1954-08-03
Abstract: 751,067. Universal joints. AKTIEBOLAGET ELEKTROLUX. Aug. 3, 1954 [Aug. 18, 1953], No. 22454/54. Class 80(2) [Also in Group XXXV] In a domestic machine in which the coupling half on the driven device extends through an aperture in a casing containing the motor for engaging the motor halfcoupling, the aperture is not appreciably larger than the coupling. As shown, 42 is a holder for a vessel 10 supporting in its base bearings 21 for a shaft 23 carrying knives for the treatment of food in the vessel 10 and a coupling half 35 which projects into a groove in motor half-coupling 39 for engagement by pin 36. The small aperture increases the screening effect of cover 41 when the vessel 10 is withdrawn: The cover 41 also forms a seat for a rubber ring 43 within which the wall 44 of the motor housing is guided.
Patent GB-137780-A (GB)
Title: Improvements in journal boxes for railway cars and similar vehicles
IPC: B61F15/12
Filed: 1919-09-12
Abstract: 137,780. Marks, E. C. R., (Nordiska Kullager Aktiebolaget). Sept. 12, 1919. Ball and roller bearings.-In a railway-vehicle axle-box fitted with two rows of ball or roller bearings, the inner and outer races are separated by distance sleeve 4, 5, and removable rings 9, 10 are placed between the outer race 3 and the cover 2 and between the inner race 3 and a shoulder on the axle, against which the inner rings are clamped by a nut 7. The ring 9, which is wider than the space between the ring 10 and cover 2, is made in sections for easy removal, so that in dismounting the parts, after the ring 9 has been removed, the cover 2 can be moved up against the ring 10 to force the inner rings off the axle. Covers 8 are provided to enable the axle to be mounted for treatment in a lathe without removing the axle-boxes.
Patent GB-301408-A (GB)
Title: Improvements in and relating to holders for thermionic valves
IPC: H01R33/76
Filed: 1927-08-26
Abstract: 301,408. Paroussi, E. Aug. 26, 1927. Vacuum tubes.-A holder for screened grid, double - ended valves having an external screen consists of two independent holding members, one for each end of the valve, one of these members, being formed in two, parts so that the valve can be disconnected without removing it from its position in the screen.. A pillar A, situated on one 'side of the screen S, is adapted to receive in sockets or clips f, the pins g at one end of the valve. At the other side of the screen, a block B, smaller than the block A, is provided with spring pins a to engage sockets e carried by conducting bars d on a second block C, the bars d also carrying sockets b which are engaged by the valve pins p.