baber/WOPTO huggingface dataset:
Patent GB-389662-A (GB)
Title: Improvements relating to tramway and other vehicle brakes
IPC: B60T13/74
Filed: 1932-04-19
Abstract: 389,662. Electric and magnetic brakes. SMITHSON, J. G., Oakdale, Alvechurch, Worcestershire. April 19, 1932, No. 11182. [Class 103 (i).] In a brake system for tramway and other vehicles wherein electromagnetic brakes are in series with the propelling motor automatic means are provided adapted to short circuit the magnetic brakes when the motor is driving and to bring these brakes into operation when the motor is being driven for regenerative braking and the regenerative current reaches a pre-determined value. The automatic device shown comprises a polarized relay having a winding d in series with the motor a and magnetic brake b and a winding e connected directly with the supply f. The arrangement is such that when current flows from the supply f to the motor for driving, the magnetic flux in the winding d acts with that in the coil e so that the armature g closes the circuit of a coil h which closes a switch c thus short-circuiting the windings of the magnetic brake b and rendering it inoperative. When, however, in regenerative braking, the current in the motor and coil d is reversed, the magnetic flux in this coil acts in opposition to that in the coil e so that when the regenerative current reaches a predetermined value the armature g breaks the circuit of the coil h, the switch c opens and the magnetic brakes are supplied with the regenerative current.
Patent GB-653340-A (GB)
Title: Electronic musical instrument
IPC: G10H5/02
Filed: 1948-04-23
Abstract: 653,340. Electrical musical instruments. MARTIN, C. April 23, 1948, No. 11280. Convention date, May 3, 1947. [Class 88 (ii)] An oscillator in an electronic musical instrument comprises a multivibrator 1, 2, Fig. 1, in which one of the two normally capacitative anode/grid couplings is replaced by a pure resistance 6. The frequency may be adjusted in octaves by switch 15 controlling condensers 13 and in semitones by key switches 34 controlling resistances 30 through contacts 39. To avoid the transmission of transients when a key switch is operated, a short delay occurs before a normally blocked output tube 3 is conditioned to transmit. The cathode of tube 3 is grounded through a contact 44 and a delay circuit 18 to allow transmission to an amplifier 49, a filter unit 50 and a loudspeaker 51. The attack may be varied by means of a switch 23 in the delay circuit. Variable resistances 7, 16 are provided for initial adjustments. Vibrato, Fig. 2 (not shown): the oscillators and a conventional low-frequency multivibrator are coupled by means of a common H.T. feed resistance so that the oscillator frequencies vary in phase with the multivibrator. The amplitude and frequency of the vibrato effect may be controlled by separate resistances. Filters: the filter 50 may comprise a tuned transformer, Fig. 3, the characteristic of which can be adjusted by means of switches 69, 72, 75, 79.
Patent GB-539216-A (GB)
Title: Improvements in or relating to metal racks for holding tools
IPC: B25H3/04
Filed: 1940-07-11
Abstract: 539,216. Making tool-racks from scrap. STEVENSON, A. July 11, 1940, No. 11539. [Classes 83 (ii) and 83 (iv)] Racks for holding boiler-room tools are stamped out from pieces of sheet metal scrap, pairs C and E being stamped from strip as shown in Fig. 1 to avoid waste. Holes for fixing screws are punched and the projections D and F are bent up to an acute angle as shown in Fig. 6.
Patent GB-288042-A (GB)
Title: Improvements in under clearers for the drawing rollers of textile machines
IPC: D01H5/62
Filed: 1927-04-30
Abstract: 288,042. Fine Cotton Spinners' & Doublers' Association, Ltd., and Bellhouse, W. S. April 30, 1927. Rollers, clearing.-Reciprocating underclearers A for the bottom delivery or drawing rollers of textile machines are carried on cradles C so that they may be readily detached therefrom and removed whilst the machine is in motion, the cradles being pivotally mounted and controlled by a spring H or springs to hold the clearers against the rollers. The clearers are shown as applied to a Nasmith combing-machine, and the cradle is formed of sheet metal with webs formed with slots C<5> which engage studs d<2> screwed into the ends of a rod D pivoted in the framework D<1>, one of the pivots d<1> thereof being extended and provided with a slotted arm E engaged by a crank pin f whereby the cradle and underclearer are oscillated. A projection c<6> from the cradle engages the framework D<1> when the underclearer is removed and prevents the cradle from contacting with the rollers .
Patent GB-557149-A (GB)
Title: Improvements in and relating to means for operating limit electric switches
IPC: H01H19/18
Filed: 1942-08-18
Abstract: 557,149. Actuation of switches. SMITH, W. Aug. 18, 1942, Nos. 11576/42 and 6217/43. [Class 38 (v)] The operating shaft 4 of a limit switch 3 has mounted on it either a wheel 5 with a few gearteeth cut in its edge, or a lever with an extending pin. In each case the teeth or the pin are adapted to mesh with the teeth or a slot in a co-operating wheel 6, mounted upon a screw shaft 7 rotated in one or other direction from a rotating part 1 of a crane, hoist &c. The wheel 6 is prevented. from rotation, except in the extreme position when against a fixed collar 8, by the engagement of a rib 10 in the groove or teeth so that it in normal use travels back and forth along the screw rod 8. In the extreme position it is free from the rib, it rotates and operates the switch.
Patent GB-457035-A (GB)
Title: Improvements in filters and other apparatus containing porous parts
IPC: C04B38/00
Filed: 1935-04-15
Abstract: In filters, gas-diffusion apparatus, extraction apparatus of the Soxhlet type, or other apparatus having non-porous parts of glass or quartz glass and porous parts of fireproof material, the porous and non-porous parts are fused together.  If the non-porous p  parts are of glass the porous parts are of material other than glass and if the non-porous parts are of quartz the porous parts are of material other than quartz.  The porous parts may be of elementary silicon or its alloys, silicon dioxide, silicon carbide, porcelain, clay, stoneware, zirconium, graphite, metals, such as iron, nickel, copper or silver, and their oxides, of magnesium oxide or aluminium oxide or of mixtures of these substances.  If of electrically-conducting material the porous parts may serve as heating plates or electrodes.  The porous parts may support or be impregnated with catalysts.  Reference is made to an electric arc for the electro-thermic treatment of gases or vapours having one or more electrodes of porous silicon carbide and a mantle of either glass or quartz.  Examples are described in which porous plates are made by mixing silicon, silicon carbide, quartz glass powder, quartz sand, or calcined alumina grains with boric acid, dextrine and water, forming the mixture into plates or cylinders by pressure and then drying and firing.  The cylinders may be cut into plates before or after firing.  According to a further example, discs cut from cylindrical sticks, made from copper foam, as described in Specification 339,645, [Class 1 (i)], are fused into glass tubes.  To facilitate cutting the sticks may be oxidized by glowing in air.  In this case the discs are reduced, for example by means of methanol vapour, before or after they are fused into the glass tubes.ALSO:Porous filtering partitions of fire-proof material are fixed into vessels of glass or quartz glass.  The fire-proof material may be elementary silicon or its alloys, silicon dioxide, silicon carbide, porcelain, clay, stoneware, zirconium, graphite, metals, such as iron, nickel, copper or silver, or their oxides, aluminium oxide, or magnesium oxide, or mixtures of these substances. If electrically-conducting the filtering partitions may serve as heating plates or electrodes.  They may support or be impregnated with catalysts.  Examples are described in which porous plates are made by mixing silicon, silicon carbide, quartz glass powder, quartz sand or calcined alumina grains with boric acid, dextrine and water, forming the mixture into plates or cylinders by pressure and then drying and firing.  The cylinders may be cut into plates before or after firing.  According to a further example discs cut from cylindrical sticks, made from copper foam, as described in Specification 339,645, [Class 1 (i)], are fused into glass tubes.
Patent GB-1348338-A (GB)
Title: Photoelectrophoretic imaging
IPC: G03G17/04
Filed: 1971-04-27
Abstract: 1348338 Electro-photography XEROX CORP 27 April 1971 [27 April 1970] 11606/71 Heading G2H In a photo-electrophoretic imaging process, the image or border area on an injecting plate electrode is transferred to a separation roller electrode in an electric field between the injecting electrode and the separation electrode after application of a repulsive charge to the separation electrode in an area corresponding to one of said areas or after reversal of the electrostatic charge on one of said areas. In Fig. 4, after formation of a positive image and border areas of negatively charged particles on an injecting electrode 75 and a negative image of positively charged particles on a blocking electrode 71, border area particles are transferred to a separation electrode 37 which is charged in an area corresponding to the image area by a negative corona device 28 and image area particles are transferred to a web 82 passing between electrode 75 and a transfer electrode 72. A further corona device may be situated above electrode 75 between electrodes 37 and 72. In Fig. 5, two blocking electrodes 86 and 87, a positive corona device 21 which directly recharges the image area, and a combined separation/transfer electrode 23 are employed. The corona device has an arcuate shield 29 which is rotated to allow charging for a limited period through a variable width opening, Figs. 2 and 3, (not shown).
Patent GB-224199-A (GB)
Title: Improvements relating to the production of lead acetate
IPC: C07C51/41
Filed: 1924-05-10
Abstract: 224,199. Plaueln, R. Oct. 30, 1923, [Convention date]. Lead acetate.-Basic lead acetate is obtained by oxidizing metallic lead fibres in acetic acid or lead acetate solution by injecting air and circulating the liquor vertically in an apparatus consisting of a cylindrical chamber a having an open-ended tapered cylinder b standing concentrically within it and containing the charge of lead. The cylinder b is made in sections, one of which is provided with rows of perforations e at or just below the surface of the liquid. At the bottom of the cylinder b is arranged a tripod c of airnozzles supplied by a pipe d. The injection of air from these nozzles causes the liquid to rise in the cylinder b and pass outwardly through the perforations e and downwards in the annular space outside the cylinder b. By this process raw lead containing antimony can be employed instead of the usual refined lead and the fibres do not cake together.
Patent GB-476220-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/28
Filed: 1937-04-23
Abstract: 476,220. Vacuum cleaners. HOOVER, Ltd. April 23, 1937, No. 11712. Convention date, Feb. 18. [Class 8 (i)] In a vacuum cleaner a ventilating fan D for cooling the motor is arranged in an extension of the motor casing B. Air is drawn through slots H in the outer casing and is discharged through a passageway E<2> formed in the outer casing of the cleaner. In a modification, the air is discharged through a passageway formed by the reflector of the lamp.
Patent GB-669301-A (GB)
Title: Improvements in or relating to variable stroke pumps
IPC: F04B1/06
Filed: 1947-05-01
Abstract: 669,301. Reciprocating pumps. HAYWARD, TYLER & CO., Ltd., and HOWARD, G. P. E. May 25, 1948 [May 1, 1947], No. 11713/47. Class 102 (i) In a reciprocating pump, the piston 1 is reciprocated by a crank 5 connected by a link 6 to a lever 3 pivoted at 4. The lever passes through a hole in a trunnion 9 secured to the member 8 secured to the piston 1 and the stroke of the pump is varied by adjusting the pivot 4 so that the lever 3 slides through the trunnion. The pivot 4 is carried by an arm 12 on a sector 14 adjusted by a worm 15 ; the sector can be locked by a pin 37. The arm 12 can enter the hole in the trunnion so that the axes of the pivot 4 and the trunnion align and the stroke is zero. Arrangements are described wherein one or more pumps are mounted on a bedplate together with an electric motor for driving the crankshaft 19.
Patent GB-969167-A (GB)
Title: A device for transmitting impulses
IPC: H01H35/40
Filed: 1963-03-25
Abstract: 969,167. Thermal switches; fluid actuation of switches. K. T. KALLE. March 25, 1963 [March 26, 1962], No. 11727/63. Heading H2B. [Also in Divisions G1 and G3] The response time of a bimetallic switch is improved by using a high heating current and a local fan for cooling the strip. As shown for controlling the gas pressure in a conduit, a bimetallic strip 7 (Fig. 1), which is subjected to intermittent heating through a circuit 13 including contacts which are operated at a controlled rate, is enclosed in an open-ended tube 8 and subjected to cooling by a fan 18. The strip 7 is attached to a wider strip 6 secured to the interior of the tube 8, which compensates for variations in ambient temperature. In another embodiment for measuring fluid pressure, a diaphragm 24 (Fig. 4) is subjected to the pressure on one side and carries a rod 25 terminating in a contact 26 on the other side, the contact co-operating with a further contact 27 carried by the bimetallic strip 7 to close a heating circuit for the strip, whereby the contacts 26, 27 make and break at a rate determined by the pressure behind the diaphragm 24, and represented by the average current in the heater circuit, as indicated by a meter.
Patent GB-222531-A (GB)
Title: Loud-speaking apparatus of the electro-magnetic type
IPC: H04R7/16
Filed: 1923-05-02
Abstract: 222,531. Lumiere, L. May 2, 1923. Magnetic instruments.-A diaphragm having warped members as described in Specification 11015/09, is provided with a peripheral circular supporting frame R<1> connected, preferably by radial arms g, to a casing f containing an electromagnetic receiver. The transformation of vibrations takes place through a point k resting on the vibrating element, such as a diaphragm e, and the latter can be displaced so that the point may rest on the most suitable spot. The whole of the electromagnetic receiver may be movable within the casing. There may be a number of points of contact with the diaphragm e or other vibrating member to convey vibrations, and these are preferably disposed in a line or with equal spacing.
Patent GB-837181-A (GB)
Title: Improvements in or relating to methods of manufacturing helically wound filaments
IPC: H01K3/04
Filed: 1958-04-15
Abstract: 837,181. Cathode constructions. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 15, 1958 [April 16, 1957], No. 11943/58. Class 39(1). [Also in Groups XI and XXII] A heater element, Fig. 4, has the helical filament reinforced at the ends, to prevent overheating and to facilitate welding, or clamping of the filament to supply conductors 13, by winding superposed helices at intervals in the coiling machine using a continuous tunsgten wire. Individual filament coils are then cut so that the ends of the filament comprise an odd number of superposed helices. As applied to an indirectly-heated cathode, Fig. 5, for an electric discharge tube the ends only of the filament protrude from the cathode so that they are not overheated by the anode current.
Patent GB-184229-A (GB)
Title: Discharge cooks
IPC: F16K31/56
Filed: 1921-04-26
Abstract: 184,229. Bruce, R. A. April 26, 1921. Ball and float valves; lift valves; actuating- mechanism.-A discharge valve for the petrol tank of a seaplane is provided with toggle mechanism for rapid opening in emergency, and with float-operated mechanism for closing the valve in the event of immersion in water. A valve seating a is secured to the bottom of the tank band carries a guiding-socket d for the valve stem e The valve f is faced with resilient material g to provide a tight closure. The seating-member carries two brackets h supporting a transverse shaft j which is connected to a rod s for operating the valve. The shaft i is connected to the valve by a shank m and lever r, which form a toggle device. A spring u ensures that the toggle-links are brought to rest in a stable position beyond their dead-centres. The valve may be adjusted more tightly to its seating by means of a screw n. The shaft j carries a lever w and float y, so that if the seaplane settles on the water, the float rotates the shaft by means of the projection 4 and pin 3, and thus clcses the valve and prevents ingress of water to the tank.
Patent GB-1347087-A (GB)
Title: Provision and distribution of liquid test samples
IPC: G01N35/02
Filed: 1971-04-28
Abstract: 1347087 Distributing samples for analysis SIEMENS AG 28 April 1971 [28 April 1970] 11996/71 Heading B1X [Also in Division B8] A sample distributor comprises a unit 4 for reading sample identification and test information from an information carrier part of a "total-sample" container (Fig. 1 not shown) moving along line 11, a sample doser 7 which may be a motor driven burette (Fig. 6 not shown) controllable to extract sample liquid from a total sample container and to deliver preselected quantities of it into respective test sample containers at station 6 along line 12, an information transferrer 8 (Fig. 7 not shown) connected for receiving information from the reader unit 4 and controllable to impose information on the test sample containers, conveyor means (Fig. 5) for presenting the test sample containers to the sample delivery station 6 and information transferrer 8 and subsequently delivering the containers to a collection location 9 and programmer means 10 connected to co-ordinate and control operation of units 4, 7, 8 and the conveyor means. The test sample containers may be delivered to the conveyor means from a rotating and vibrating container (24) (Fig. 4 not shown) by spirally ascending trough (25) and guide means such as pins 28 (Fig. 5). The sample doser 7 (Fig. 6 not shown) may comprise a motor driven piston-cylinder device (30, 31) with a separate similar device (33, 34) for supplying wash liquid from (35) to cannula (36) between samples. Sorter unit 9 may comprise (Fig. 8 not shown) comb-like member (53) pivoted eccentrically to wheel (52) and operable to advance a row of test sample containers (1) in channel (27) a certain distance with each stroke, and ejector members (55) each actuated when containers (1) are stationary to push a container into intermediate store (16) for subsequent delivery into store (17) which may be in the form of a manually removable disc (Fig. 9 not shown).
Patent GB-473750-A (GB)
Title: Improvements in or relating to lifting trucks
IPC: B62B3/06
Filed: 1937-04-27
Abstract: 473,750. Hand-trucks. ANDREASEN, A. April 27, 1937, No. 12001. [Class 108 (i)] In lifting trucks in which the lifting platform is elevated by means of the handle exerting a leverage on a connecting link the upper end of the link 18 is adapted to bear against the heel of the steering handle and to be locked thereto during elevating the locking coupling being released when the platform is elevated to free the handle for steering and hauling purposes. The lifting platform 15 is connected to the underframe by parallel links 16 and the upper end of the lifting link 18 is adapted to bear against the heel 19 of the steering handle 10 adjacent the pivot 12 thereof with the steering spindle 9. A secondary link 23 of U- or hookshape is pivoted to the primary link 18 and is adapted to engage a projection 11 on the handle 10 to lock the upper end of the link 18 to the heel 19. On being raised to the elevated position the platform is engaged by a catch 24 co-operating with a pin 26 and on movement upwardly of the handle 10 the secondary link 23 is disengaged from the projection 11 to permit the handle 10 to be used for steering and haulage purposes. The platform is released to descend under the control of a dash pot 29 by releasing the catch 24, 26 by a pedal 27.
Patent GB-527845-A (GB)
Title: Improvements in or relating to cigar-making machines
IPC: A24C1/30
Filed: 1939-04-21
Abstract: 527,845. Cigar-making machines. MULLER, J. C. April 21, 1939, No. 12023. Convention date, June 22, 1938. [Class 130] The whole of the suction surface of a suction head 21, which carries wrappers from a cutting bed to a rolling device, is cleaned by a scraper 3 during the return movement of the head. The scraper is carried by a bar 5 which is raised and lowered in guides 6 by a lever 14 actuated by a cam 17, and the scraper is held stationary in its upper position while the head is cleaned.
Patent GB-126864-A (GB)
Title: Improvements in Starters for Electric Motors.
Inventor: RAILING ADOLPH HARRY
IPC: H02P1/02
Filed: 1918-07-24
Abstract: 126,864. Railing, A. H., Garrard, C. C., Jackson, P. H., and Bonner, C. July 24, 1918. Controllers, actuating-mechanism for. - To secure a step-by-step motion in a forward direction of a starter arm, an indented quadrant A is attached to the arm and is engaged by a spring- pressed plunger C arranged radially with respect to the quadrant. The plunger is carried by a frame D which is revolubly mounted and is held by a spring against a stop L. When the starter is moving to the on position, the plunger C enters each of the indentations in succession, but during the return movement the frame D is rotated to take the plunger C out of action.
Patent GB-1199802-A (GB)
Title: Improvements relating to Electrical Surface Wiring
Inventor: GOODIER GEOFFREY THOMAS
IPC: H02G3/04
Filed: 1967-03-15
Abstract: 1,199,802. Trunking. VOLEX ELECTRICAL PRODUCTS Ltd. 29 March, 1968 [15 March, 1967], No. 12048/67. Heading H2C. [Also in Division E1] Cable trunking used as skirtings, architraves, and coning, comprises plastics members and metal mounting clips 20. Skirting trunking has a dependent lip 19 the joggle 26 of which snap engages a hook 22 at one end of the clip whilst the clip's other end 25 forms an abutment for the vertical part of the trunking. A trough 27 rests in complementary clips 28 and can accommodate supplementary cables. The members are modified to form junction pieces and channel sections for architrave and coning, the latter used in conjunction with spring steel mounting clips.
Patent GB-370206-A (GB)
Title: A new or improved portable mixing apparatus for cement or other calcareous solutions
IPC: B28C5/44
Filed: 1931-04-23
Abstract: 370,206. Mixing cement &c. BYRD, A. A. A., 110, Mansion House Chambers, Queen Victoria Street, London. April 23, 1931, No. 12065. [Class 86.] A portable apparatus for mixing cement &c. in small quantities comprises a planetary motion, hand-operated mixing blade mounted on a detachable frame which straddles a bucket, in combination with another frame which can also be placed on the bucket and carries receptacles for measured quantities of water and cement &c. The mixing blade p carried by an arm which s rotated by bevel gear from a hand crank f, the blade spindle having a pinion meshing with a fixed central pinion. Another blade q, having a simple rotary motion, scrapes the side of the bucket. The cement &c. is placed in a container u having a pivoted discharge door and mounted pivotally on a frame r, a jogging motion being imparted to the container by a cam w on the crank shaft engaging an arm w on the container. The frame also carries a water vessel z closed by a hand-operated plug.