baber/WOPTO huggingface dataset:
Patent GB-563309-A (GB)
Title: Oil economizing system for compressors
IPC: F04C29/02
Filed: 1943-02-03
Abstract: 563,309. Air compressors; recovering oil. FREEMAN, W. R., and FITES, C. B. Feb. 3, 1943, No. 1814. [Class 8 (i)] A rotary compressor 1 is supplied with oil from a reservoir 9 through a pipe 11 leading to a slot in the rotor and delivers compressed air through the reservoir, by a pipe which may be fitted with a coarse oil separator 18, to an oil separator 22 with a delivery pipe 38. The compressor has an unloading valve 54, Fig. 3, subject to the compressed air supplied by a pipe 58 leading from separator 22, and acting on a piston 56 on the valve stem. This valve closes the filtered air inlet from a pipe 50 to a pipe 51 having a check valve 74, at a certain. pressure, and suction caused by the continued pump operation opens a valve 69 and connects the inlet pipe 50 through a passage 71 and pipe 72 with the reservoir. The excess pressure in the separator 22 then opens a valve 45 allowing oil from the separator to pass back to the reservoir through a bore 26 and pipe 20.
Patent GB-1291974-A (GB)
Title: Improvements in treating particulate materials
IPC: F27D99/00
Filed: 1970-01-14
Abstract: 1291974 Rotary kilns; drying particulate material F L SMIDTH & CO A/S 14 Jan 1970 [15 Jan 1969] 1846/70 Headings F4B and F4G A rotary kiln for roasting ores or drying particulate material comprises a shell 10 with refractory lining 18, a feed tube 41 entering an unlined upper portion 20 of the shell with which are associated preheating cylinders 24, a discharge pipe 57 extending from a stationary casing 53 receiving material from planetary cooling cylinders 47, and an axial heating tube 33 receiving hot furnace gases through a pipe 67 and discharging waste gases through radial branches 39 into a housing 30 surrounding the preheating cylinders 24. Feed tube 41 extendings through a fixed casing 42 and known labyrinth seals 45 and 55 are disposed between the kiln shell and this casing and also casing 53. A treatment gas, which may be admitted through pipe 58, passes over a guiding member 59, through ports 22 into the kiln and discharges through pipe 66. An additional furnace (44, Figs. 1 and 5) may open into housing 30. The guiding member 59 comprises a funnel shaped member 60 enclosing a cylindrical member 61 closed by end plates 63 and 64, the former being formed with openings receiving delivery conduits 51 from the cooling cylinders 47. Guiding member 59 shields the cooled material from the extension 62 of the heating tube 33 as said material passes to discharge pipes 57. Cylinders 47 may be additionally cooled by power driven fans or by water sprays. Expansion bellows 29, 46 and 68, and 71 are provided respectively on the preheating cylinders 24, the heating tube 33 and the cooling cylinder 47. The particulate material may include oxide or sulphide ores of Ni, Co, Mn, Fe, Zn, Cd, Cu and A2 or sulphide ores of Pb and Sn.
Patent GB-914305-A (GB)
Title: Improvements relating to washing machines
IPC: D06F19/00
Filed: 1958-01-20
Abstract: 914,305. Washing-machines. WELTER, O. Jan. 13, 1959 [Jan. 20, 1958; Aug. 12, 1958], Nos. 1857/58 and 25946/58. Class 138 (2). [Also in Group XXIII] Washing is effected by a liquid stream on which are superimposed vibrations at a sonic frequency and at an ultrasonic frequency. In Fig. 1 the vibration generator comprises an impeller 4 rotated in a housing 19 by a motor 6. The impeller has vanes 16 whose axial and radial edges 20, 17 are closely spaced from the housing 19 and a rigid annular member 18. The impeller is made of a hard elastic material, e.g. bronze, gun-metal, chromium-steel, glass or ceramic, and vibrates axially at e.g. 18,000 c.p.s. with a node at the centre of the impeller. Liquid circulates through four slots 21 in the housing 19, through a perforated false wall 23 and through holes (not shown) in an annular member 14. The slots 21 are shaped to give a rotary component to the liquid stream (Fig. 2, not shown) and the washing container 2 is square in section. The housing may be detachably mounted on the member 18 by means of a bayonet joint. Figs. 3, 4 show a modification in which a single slot 21 extends around e.g. 180 degrees of the periphery of housing 19 and is located with its centre in the upper lefthand part of the housing when viewed as in Fig. 4. The strength of the washing action can then be varied by altering the direction of rotation of the impeller. The liquid is returned to the impeller 4 through a perforated false bottom 38 which may be covered by a filter. Air may be supplied through a pipe (not shown) connected to a bush 40. Forced highfrequency vibration of the impeller may be produced by providing a pattern of radial crests and troughs on the upper face of the impeller and a closely adjacent rigid ring secured inside the housing (Figs. 7 to 9, not shown). In a modification the crests and troughs may be formed on the member 18 and the edges 17 of the impeller vanes. The second Provisional Specification describes also a modification of the arrangement in Fig. 3 wherein a cylindrical sleeve is rotatably mounted between the impeller and housing. When the impeller is rotated in one direction apertures in the sleeve and housing are in alignment. If the direction of rotation is reversed the sleeve rotates through such an angle that the apertures are out of alignment, and the increased pressure produced within the housing is used to empty the container through a suitable connection.
Patent GB-779679-A (GB)
Title: Improvements in or relating to closure means for cabinet apertures
Inventor: HUGHES PERCY DAVIES
IPC: H01H3/04
Filed: 1955-01-21
Abstract: 779,679. Switch handles. ENGLISH ELECTRIC CO., Ltd. Jan. 13, 1956 [Jan. 21, 1955], No. 1887/55. Class 38(5) [Also in Group XXIV] An operating lever 16 for a circuitbreaker or other apparatus is pivoted behind a panel 11 about an axis 18 parallel to the panel which has an aperture of a size sufficient both to permit an actuating movement of the lever while projecting through the panel and to permit a pivotal movement of the lever to and from a retracted position behind the panel in which position a cover plate 20 attached to the lever closes the aperture. The lever 16 is slidably mounted in an actuating member 17 freely pivoted on a shaft 18 carrying a bell crank lever 15 which is part of the circuit-breaker closing linkage. The cover plate 20 is slidable on the lever 16 and a light spring 22 is arranged between the member 17 and a bracket 21 on 'the plate 20. The Figure shows the lever 16 extended ready for a closing operation and to close the circuit-breaker, the lever is moved down until it is horizontal. To retract the lever, it is initially pushed in until the knob 25 abuts the bracket 21 and the lever and the cover plate 20 are then pushed in against the bias of the spring 22 until the lower end of the bracket 21 abuts the member 17. The lever and cover plate are now pivoted upwardly until the knob 25 engages behind a catch 19 with the cover plate 20 closing the aperture in the panel. The lower part of the plate 20 has a serrated area 20a which is pressed to cause the lever and cover plate to pivot out from the panel.
Patent GB-221143-A (GB)
Title: Improvements in carburetting apparatus and vaporizers for internal combustion engines
IPC: F02M69/00
Filed: 1924-01-24
Abstract: 221,143. Thomas, J. Jan. 24, 1924. Spray carburettors.-The. nozzle h<6> is supplied with fuel and with gas under pressure, the two supplies being simultaneously controlled by a hand-operated cock g provided with two ports coacting respectively with the fuel supply pipe e, f, and with the gas inlet pipe h which communicates with the pipe h<3>; the gas employed may be air, oxygen, exhaust gas or a mixture, and may be heated. The nozzle cap f<1> is detachable for cleaning, and is interchangeable. The main air is supplied through an inlet b controlled by a slide d or a valve. A conical baffle j<1> is provided in the mixture outlet, the baffle and the fuel supply pipe e being heated by exhaust gases supplied by a pipe j, and escaping to the atmosphere through perforations j<4>. In a modification, the gas is supplied to a nozzle surrounding the outlet end of the fuel pipe.
Patent GB-1482851-A (GB)
Title: Rotary tool such as a drill and a receiving device therefor
IPC: B23B31/00
Filed: 1975-01-17
Abstract: 1482851 Drill shank ROBERT BOSCH GmbH 17 Jan 1975 [17 Jan 1974 22 Feb 1974] 2183/75 Heading B4C [Also in Division B3] The shank end 9 of a rotary tool, such as a masonry drill 5 is of multi-start helical spline form of helix angle jrom 75-85 degrees and directed so that when used in a tool holder with a complementarily formed socket, such as a receiving device 12 in holder 2 of a hand-held, rotary and percussive power drill 1, the torque reaction between the tool and the holder causes the tool to be axially urged into the holder and, as shown, against the percussion dolly 18. The spline may have six to ten teeth and the base width t 10  of the tool spline teeth 13, is in the ratio range of 1 : 2 to 3 : 4 relative to the base width of the spline teeth 14 in the receiving device 12. The shank end only, or the whole tool, may be made of plastics material or steel and formed by casting, extrusion moulding or injection moulding. Similarly, the device 12 may be of plastics or steel made by the same processes.
Patent GB-808243-A (GB)
Title: Toy revolver
IPC: F41A15/06
Filed: 1957-01-22
Abstract: 808,243. Toy revolvers. HUBLEY MANUFACTURING CO. Jan. 22, 1957 [Nov. 5, 1956], No. 2262/57. Class 132(3) A toy. revolver includes a rotatable magazine cylinder C for receiving simulated shells D which detonate caps D' placed on anvil elements 9 forming part of an ejector E. The ejector is slidable within the cylinder and each cap seating face is provided with an opening 11 leading to a chamber having an open end 12 for the escape of gas and smoke. The ejector body is secured on a shaft 14 slidable in a bearing portion 7 and in a journal sleeve 13a, and a spring 17 surrounding part of the shaft is located between the ejector and the cylinder. The barrel portion A is pivoted to the stock B on a pin 1 which also supports a cam F having a finger 21 and a shoulder 23, and a detent G provided in the stock has a head 24 engageable with the cam. A spring latch 2 normally locks the barrel to the stock and also maintains the ejector and cylinder in register by pressure of a shoulder 5 on the end 6 of the cylinder. A round of shells and caps are fired by means of a trigger T which operates a hammer T<SP>1</SP> and causes a ratchet R to rotate the cylinder. To reload, the latch 2 is first lifted and the barrel portion A allowed to pivot clear of the stock. The latch is then released to allow it to re-engage the end 6 of the cylinder. As the barrel continues to pivot, the end 16a of the ejector shaft 14 bears on the cam finger 21 and the spring 17 is compressed, the cam F being held by the detent G. The shells D may be removed when the barrel portion reaches the dotted line position shown in Fig. 1, but the barrel will normally be pivoted to the position shown in Fig. 2 in which the shells will be completely ejected and cap debris removed from anvil seats 10. On further pivoting the stock such that an abutment H engages the detent G, the cam F is released and' the ejector allowed to return to its original position, Fig. 3. Caps may then be placed on the seats 10 and the shells replaced, the barrel being returned to its firing position and secured by the latch 2.
Patent GB-656249-A (GB)
Title: Method for preparing soluble allyl starch
IPC: C08B31/08
Filed: 1948-01-26
Abstract: Soluble allyl starch is prepared by allylating starch in the presence of concentrated alkaline solution and a solvent for allyl starch.  In an example, 67 c.cs. H2O, 100 gms. NaOH, 50 gms. starch, 250 c.cs. methylethyl ketone and 300 gms. allyl bromide are refluxed for 10 hours when the resulting product had about 2.2 allyl groups per glucose unit.  U.S.A. Specification 2,406,369 is referred to.
Patent GB-209952-A (GB)
Title: Improvements in photographic roll film developing, fixing and washing apparatus
IPC: G03D13/12
Filed: 1923-01-25
Abstract: 209,952. Barnett, S., Rose, H., and Goodman, J. Jan. 25, 1923. Trays, dishes, and containers for roll films.- Several roll-films are held during development on a frame 1 having a cross-bar 4, the films being looped round the bottom bar 10 and secured by their ends to the bar 4 by clips 11. The bar 4 is preferably adjustable in guides 2, and is held in adjusted position by pins 8 serving to secure to the top bar 6 perforated bars 7 by which the bar 4 is suspended. If the bar 4 is fixed to the uprights 3, the bar 6 is dispensed with. Suspension hooks 16 may be provided, or several frames may be suspended in a tank individually by ropes passing over pulleys and counterweighted to facilitate lifting for inspection. The tank may be of teak, and has grooves or fillets. to space the frames apart.
Patent GB-897397-A (GB)
Title: Improvements in or relating to roll shutters for articles of furniture
Inventor: AUSTIN FRANK
IPC: E06B9/11
Filed: 1960-01-22
Abstract: 897,397. Roll shutters. AUSTIN (LEYTON) Ltd., F. Aug. 9, 1960 [Jan. 22, 1960; Jan. 25, 1960; March 25, 1960], Nos. 2398/60, 2611/60 and 10638/60. Class 20(3) [Also in Group XIV] A roll shutter for cupboards &c. has wooden slats 2 maintained in edge to edge relationship by transverse thin tempered steel strips 4 fixed to the end slats 3 by screws 6 and held close to the remaining slats by staples 7 or screws or rivets. A backing piece 5 of fabric or plastic sheeting is adhesively secured to the slats 2 and the top and bottom edges of the shutter are formed with projections 8 which engage slots 9 in the cupboard. Specifications 876,767 and 891,812 are referred to.
Patent GB-1530981-A (GB)
Title: Method and apparatus for transporting a variable number of articles for stacking
IPC: B65G47/51
Filed: 1977-01-20
Abstract: In order to have a high flexibility in the number of elements in each stack and in the working speed, the individual elements (10) are fed, in a fixed position (12), into compartments (16) in a conveyor magazine (14) which moves in a closed cycle, while a programmable number of elements (10) is taken from a fixed position (44) on the side of the conveyor opposite the feed side. The conveyor (14) is adapted to the desired feed and pick-up conditions by moving it in a direction (x) parallel to the feed and pick-up sections. It is envisaged that the apparatus will be used to form stacks of newspapers or magazines. <IMAGE>
Patent GB-1206511-A (GB)
Title: Improvements in or relating to control systems for railway trains
IPC: B60L3/00
Filed: 1968-01-16
Abstract: 1,206,511. Railway control; automatic decoupling. DRESSER INDUSTRIES Inc. 16 Jan., 1968 [16 Jan., 1967], No. 2417/68. Headings B7N and B7T. In an arrangement for selectively actuating means on a train, e.g. for actuating couplers between vehicles, slave means are provided on each vehicle which are energized to uncouple the vehicle in response to signals from a master unit. The arrangement may also be used to return information from the slave means to the master unit. As described, the master unit is mounted on the leading vehicle of the train and is connected to each slave unit via five leads connected via the coupler units. Where the master unit is not on the train, the signals to the slave units may be by radio. The five leads include a pair of power lines 23; an address line 20 which in each vehicle is connected in series with a pair of bi-stable units 25, one associated with the front and the other with the rear coupler; an order line 19 for passing frequency multiplexed signals to all the vehicles and a reply line 21 including time delays 33 for passing information from the slaves to the master unit. The series connected bi-stable circuits 25 form a shift register so that a particular circuit 25 can be energizzd by applying a pulse to the address line and the correct number of shift pulses via order line 19. The shift pulses are frequency coded, detected in the first filter and detector unit 36 and trigger a pulse generator 37 which supplies the shift pulses to the bi-stable circuits. The energized bi-stable picks up an associated relay which energizes the slave apparatus so that an uncouple signal, frequency coded and sent via the order line, is detected and operates the uncouple circuit 7 via a contact 40. In response to a further signal of different frequency an encoder 32 at the slave station is energized to send information from source 28 back to the master unit. Where information, e.g. vehicle number is required from each vehicle in the train all the bi-stables are energized then in response to the further signal each vehicle transmits the required information at the same time, the time delays 33 ensuring that the signals are received in sequence at the master unit. The head 4 of coupler 2 mounts a pivoted hook 5 normally spring held in the coupling position from which it can be released by an unlocking cam 10 connected via a shaft 9 to a lever 8 operated by an air cylinder unit 7. In emergency the lever can be operated by hand. The head also carries air and electrical couplers 6 and 3.
Patent GB-580197-A (GB)
Title: Improvements in or relating to door stop assemblages for oven doors
IPC: F23M7/00
Filed: 1945-02-01
Abstract: 580,197. Door stops. MAIN, Ltd., R. & A., BOWMAN, A. G. C., and SAVAGE, D. E. Feb. 1, 1945, No. 2546. [Class 65 (i)] A stop for an oven door is provided by a rod 17 bent at the end 18 so as to enter a pivot eye 15 parallel with the door hinges and bent at the end 20 so as to engage with and lie flush against the oven wall 12 when the door is fully open. The rod is held in the eye by a flange 22 of the door casing.
Patent GB-741093-A (GB)
Title: An improved extensometer
Filed: 1953-02-25
Abstract: 741,093. Electric indicating systems. VICKERS-ARMSTRONGS, Ltd., and MORLEY, F. J. Feb. 19, 1954 [Feb. 25. 1953], No. 2583/53. Class 40(1) An extensometer comprises spaced members 11, 12 having pointed tips 111, 112 which bear lightly against a testpiece, e.g. a bar 28, Fig. 4, when the base block 10, carrying the members is clamped to the test piece, e.g. by a cleat 29 and rods 30 passing through holes 31 in the base. The member 11 is fixed to the base 10 and the member 12 pivoted thereto at 13. Reeds 20, 21 carrying strain gauges 23-26 on each side thereof are secured at their lower ends to the members 12, 11 and at their upper ends to a floating block 22. The reeds are thus stressed according to the displacement of the tips 111- 112 which is measured in known manner by connecting the four strain-gauges in a bridge circuit Fig. 3 (not shown). The spacing of the members 111-112 may be varied. A pivotal latch 15 is used to lock the pivotal leg when not in use.
Patent GB-328049-A (GB)
Title: Method of and means for testing thermionic valves
IPC: G01R31/25
Filed: 1929-01-25
Abstract: 328,049. Marks, Sir G. C., (Weston Electrical Instrument Corporation). Jan. 25, 1929. Resistances, measuring. - The mutual conductance of a thermionic valve is measured by energizing the filament, plate and grid circuits from a source of alternating current, changing the phase relationship between the anode and grid voltages and measuring the difference of plate current produced thereby. As shown, the valve supplied through a transformer 1, 3, the primary voltage, when suitable, being directly applied to the anode circuit through connections 5, 6. The filament is supplied at 6 volts from the secondary 3 which is also connected to the grid by a two-way switch 8-11. In the normal position, the full secondary voltage is applied to the grid through contact 9 but when the switch is depressed and contact 11 engages, the voltage and phase relatively of the grid bias are changed. In the arrangement shown, the plate current is at minimum when the contact 9 is engaged and at maximum when contact 11 is engaged. Grid biassing voltages of different magnitudes may be obtained by connecting the contact 11. to a variable point on the primary or secondary of the transformer or by connecting it to resistances in the filament or anode circuits of the transformer.
Patent GB-956934-A (GB)
Title: Sealed semiconductor devices and mounting means therefor
IPC: H01L21/56
Filed: 1962-01-24
Abstract: 956,934. Semi-conductor devices. S. RUBEN. Jan. 24, 1962 [Feb. 20, 1961], No. 2599/62. Heading H1K. An insulation coated unit consisting of a semiconductor body and associated electrodes is encapsulated and integrated with a mounting stud by a mass of fusible metal cast around the unit and stud. Typically a diode consisting of a PN junction silicon wafer soldered between metal plates from which extend insulated copper leads 33, 34 (Fig. 3) is first coated with a hardenable epoxy resin filled with mica, or preferably powdered titania. After heat curing the coating the unit 38 and threaded copper stud 50 are placed in a shaped mould 44 and a 63: 37 tinlead alloy cast about them to form an axially finned heat sink. Contraction of the metal on coating ensures good thermal contact between the stud, diode and metal mass. An alternative casting metal is cadmium-tin. Germanium rectifier diodes and tunnel diodes and transistors may be similarly encapsulated. Specification 936,886 is referred to.
Patent GB-210794-A (GB)
Title: Method of and apparatus for recording oscillations on a sensitive film
IPC: G03C5/14
Filed: 1924-02-01
Abstract: 210,794. Kulikoff, A. Feb. 1, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Photographic recorders. - Sound &c. vibrations are recorded on a continuously moving sensitized film by means of a beam of light which, oscillating in accordance with the vibrations to be recorded, moves in the plane of the longitudinal axis of the film. Thus the beam moves alternately in the direction of movement of the film and oppositely thereto. In the apparatus shown, the image of an illuminated slit b is reflected on to a moving film k from a concave or plane mirrom d, which is connected to a diaphragm e, mounted in a sound-funnel f. The light, acting on the film in the manner described above. produces a record which appears on the developed' film as a series of lines of varying intensity. The mirror may be vibrated electromagnetically, a thermionic or other amplifier being employed.. Lenses may be arranged in the path of the light rays, and instead of a mirror, one or more reflecting prisms may be used. The method described is stated to be also applicable for recording the vibrations of " machines for biological researches," or for other purposes.
Patent GB-266113-A (GB)
Title: Improvements in adjusting mechanism for condenser dials, coil-holders and like electrical apparatus
IPC: H03J1/14
Filed: 1926-01-30
Abstract: 266,113. Hester, J. Jan. 30, 1926. Wireless tuning-apparatus, adjustment devices for. - Fine adjustment mechanism for condenser dials &c. comprises a plate a on which are pivotally mounted levers d, i, the lever d being spring biassed and carrying a finely milled pinion e<1> which bites into the edge of the dial g and is engaged or disengaged therewith by the lever i. The lever d is provided with an indicator d<2 >and the movement of the lever system is restricted by stops d<4>, i<3>. The gear may comprise a toothed wheel and pinion located below the dial.