baber/WOPTO huggingface dataset:
Patent GB-804011-A (GB)
Title: Semiconductor transistor device
IPC: H01L23/04
Filed: 1956-03-02
Abstract: 804,011. Transistor assemblies. HUGHES AIRCRAFT CO. March 2, 1956 [March 24, 1955], No. 6705/56. Class 37. A transistor assembly comprises a transistor body, consisting of emitter and collector regions on opposite faces of a base region, which is fixed to an apertured plate mounted between and electrically connected to the flanges of a pair of conductive tubes forming a housing for the transistor body. Conductor members sealed to but insulated from the tubes extend towards the emitter and collector regions respectively. In one embodiment (Fig. 4) the regions are formed on a P-type Ge crystal 10 by fusion thereto of PbAs alloy bodies 12, 13 for 3 minutes at 725 C. The apertured plate 14 of " Kovar " (Registered Trade Mark) is dished and its edges welded or soldered between the flanges 28 of a pair of tubular Kovar members 20 which constitute the housing. Kovar conductors 22 to the ends of which are welded Kovar spring contacts 26 with tinned tips are previously sealed in the members by glass-to-metal seals 24. After assembly conductors 22 are heated to solder the spring contacts to the PbAs emitter and collector electrodes 12 and 13. In a further embodiment (Fig. 5) the spring contacts are replaced by rods 40 soldered into tubular coldrolled steel conductor members 36 which are bonded to the tubular member 33 also of steel, by means of sintered glass 42, formed under high pressure. One of the members is formed with a larger flange which is crimped over the other. In this embodiment the apertured plate is also of cold rolled steel. Si or an intermetallic compound may be used instead of Ge and a PNP junction body may replace the NPN body described above.
Patent GB-178791-A (GB)
Title: Improvements in underfeed boiler furnaces
IPC: F23K3/10
Filed: 1920-10-13
Abstract: 178,791. Hare, W. A. Oct. 13, 1920. Fire-bars and grates.- In an underfeed furnace of the kind in which fuel is fed by a reciprocating pusher and slide into a trough having removable tuyeres mounted on its side walls and an inclined grate including fixed and movable fire-bars supported at one end on the trough and extending downwardly towards an ash-dumping giate, the tuyere blocks 35, Fig. 1, mounted on one side of the trough are composed of intermediate ribbed plates 36, Fig. 12, bolted to end ribbed plates 37, Fig. 13, which are provided with hooks 43. 44 to engage with projections 45, 46 on the wall plate 34 and retort wall 12 respectively. The tuyeres 30 on the opposite wall of the trough are composed of intermediate ribbed plates 50, Fig. 10, bolted to end ribbed plates 51, Fig. 11, which are provided with hooks 59 to engage with projections 60 on the wall 12 of the trough and lugs 53 to underlie the ends of the grate bars, projecticns 56 being formed on the plates 50, 51 to overlie the ends of the grate bars. Air from the wind box 25 passes through the tuyeres into the fuel trough and also through the tuyeres 30 into the fixed and reciprocating hollow fire-bars which are each formed of a central web 90, Fig. 6, flanged at the bottom and bolted to side plates 91 to form longitudinal passages 80 communicating at 81 with the passages 82. Air escapes from the passages 82 through the spaces between the bars and to the ash-pit, as the bars reciprocate, through slots 86 which are opened and closed by the flange 29. The bars are reciprocated by a rock shaft 63 operated from the mechanical stoker. The dumping-grate 68 is formed in sections attached to lugs on the rock shaft 63 and to links 70 which are also pivoted to arms 71 secured to a shaft 72 projecting through the front of the furnace where it is provided with a toothed sector operated by a worm to dump the grate. Specification 175,342 is referred to.
Patent GB-1490484-A (GB)
Title: Use of dichlorocyclopropane derivatives as scents
IPC: C07C23/04
Filed: 1976-02-20
Abstract: 1490484 Cyclopropane derivatives HAARMANN & REIMER GmbH 20 Feb 1976 [22 Feb 1975] 6788/76 Heading C2C [Also in Divisions A5-A6 and C5] Dichlorocyclopropane derivatives of Formula I wherein R 1  is hydrogen, methyl, ethyl, propyl, methoxy or ethoxy, R 2  and R 3  are independently hydrogen, methyl, ethyl or propyl, n is 0 or 1, and the total number of carbon atoms in the molecule is not more than 15, are prepared by reacting a compound of Formula (II) wherein R 1 , R 2 , R 3  and n are as above, with dichlorocarbene. The dichlorocarbene may be produced in situ from chloroform and a base (e.g. potassium t-butylate, NaOH solution containing triethylbenzyl ammonium chloride, or ethylene oxide and tetramethylammonium bromide).
Patent GB-783554-A (GB)
Title: Improvements in electric switch operating mechanism
Inventor: SANSON REUBEN JACK
IPC: B60Q1/22
Filed: 1955-03-08
Abstract: 783,554. Switch handles. S. & B. ENGINEERS (RATCLIFFE), Ltd. Feb. 29, 1956 [March 8, 1955], No. 6810/55. Class 38 (5). A tumbler switch 2 is operated by a lever 5 mounted in a sleeving 8 which screws on to the usual threaded boss 4 of the switch, the lever 5 being provided with a recess 13 for engaging the switch dolly 14. A ring of rubber 11 is disposed between the end of the sleeving and a flange 12 on the lever. The device enables a motorist to operate a switch without releasing the steering-wheel.
Patent GB-387851-A (GB)
Title: Improvements in boilers for washing clothes and for like purposes
IPC: D06F1/08
Filed: 1932-03-08
Abstract: 387,851. Making extracts. AKTIEBOLAGET LAVATOR, 7, Nybrogatan, Stockholm. March 8, 1932, No. 6955. Convention date, Jan. 18. [Class 81 (i ).] In a boiler for extracting, wherein the washing liquid is driven when heated from a lower chamber 7 through channels 8 to the top of an upper chamber 2 containing the raw material, the chambers being separated by a partition 4 with a valve-controlled outlet 12 for the washing liquid so that vapour formed in the lower chamber cannot enter the channels 8 until liquid in the lower chamber has fallen to the level of a liquid seal 6 formed by the lower edge of the chamber 7, there is provided at least one outlet 21 for steam and air, preferably with a float valve control 24. The pipe 21 may be covered by a cap 23. The outlet 21 may be replaced by small holes 32 in the sides of the chamber 7, through which steam escapes when the liquid enters by an outlet 12 with a float 11. The channels 8 are formed between an outer container 1 and the chambers 2, 7, which stand therein on legs 4<1> and are secured by rotatable arms 14 engaging studs or moving over an indented cam to engage a groove in the container 1. In a modification, the channels 8 are formed by tubes leading through the partition 4 and forming the liquid seal, and there is no outer container. Steam passes by a pipe 22 into a cap 30 containing water and having a valve 31. The chambers are emptied through a hinged pipe 29.
Patent GB-1055125-A (GB)
Title: Apparatus for coating webs or cloths of material with liquids, pastes and the like
IPC: B05C11/04
Filed: 1964-02-20
Abstract: 1,055,125. Web coating apparatus. C. A. MEIER-WINDHORST. Feb. 20, 1964 [March 20, 1963], No. 7046/64. Heading D1L. In coating travelling fabric webs, coating material spreading means is disposed in the feed or entry zone of a tentering frame such that a single arrangement of web gripping clips or needle bars of the tentering frame suffices for both the coating and the tentering operations. The spreading means preferably incorporates interchangeable capstan heads holding doctor blades and backing rollers of different widths and the coating material feed to the spreader means is controlled by a tube reciprocating transversely to the direction of motion of the web. In the arrangement shown fabric web 10 is drawn from a stack and led through a stretching and strightening device 11 to an intake roller 12 of a tentering frame. It then passes between coating apparatus 13 and associated backing roll 14. The coating apparatus has a number of doctoring blades of different widths arranged on a rotatable capstan and there are a similar number of backing rolls of corresponding widths. After coating the web is led through drier 15 and heat treatment duct 16. In an alternative arrangement the coating spreading device is fitted on the intake roll 12. (Fig. 3, not shown).
Patent GB-177037-A (GB)
Title: Improvements in or relating to shop and office counters
IPC: G07D9/02
Filed: 1921-03-04
Abstract: 177,037. Mines, A. B. March 4, 1921. Counters.-A protecting screen for a counter or the like consists of a series of vertical shutters, which may be simultaneously actuated by a person situated behind the counter so that they present an unbroken front. The shutters e are preferably mounted in a frame b, c, b<1>, d attached to the counter a by means of pins e<1>, e<2>, the bottom ones e<2> being revolubly disposed in sockets in the member d, while the upper spindles e<1> project through holes in the upper horizontal member c and are secured to one end of a crankarm f, the other end of which is connected with a common horizontally-disposed bar g. The end crank arm f is connected to a foot rod r extending longitudinally behind the counter which, when depressed, causes the shutters e to revolve so that they overlap one another. The space between the lower member d and the top of the counter may be closed by means of an horizontal shutter u pivoted to a rod v and actuated from the foot-lever r by means of a lever n, n' and rod t. An electrical contact member w may be fitted to the counter so that, when the arm p of a lever p, p' is raised to close the shutters, a bell is caused to ring, and there may be provided means for the automatic locking of the shutters in closed positions.
Patent GB-352449-A (GB)
Title: An improved method of and machine for grinding chasers
IPC: B24B3/60
Filed: 1930-03-04
Abstract: 352,449. Grinding. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Jones & Lamson Machine Co. ; Springfield, Vermont, U.S.A.) March 4, 1930, No. 7080. [Class 60.] Screw-threads, grinding; cutting-edges, shaping and treating.-Chasers for use in lathes, screw machines, &c. are mounted for grinding the threads, with their working faces extending outwardly, on a mandrel rotated to bring the threads into contact with a grinding-wheel, and in order that the threads may be concave, the mandrel is moved so that the thread of each chaser engages the grinding- wheel for a short time only, whereby the concavity is substantially complemental to the convexity of the grinding-wheel. The chasers are mounted on a mandrel 4, supported by centres 27, 35 on a table 21, the centre 27 being adjustable axially, and driven, through gearing 46, 40, 43, 44 from a shaft 45. The centre 35 is pivotally mounted in a spherical bearing 78 and is rocked, to move the chasers up to and away from the grinding-wheel 22, by a cam arm 87 pivoted on a plate 85 and acted on by a cam 100 driven from the shaft 45. The plate 85 is mounted on a sleeve 83 surrounding the centre 35 and is adjustable by screws 112 carried by a casing 72. The shaft 45 is driven through a clutch 57, 58 and gearing from a main shaft 67, which also drives a cam-drum 70 carrying a cam 115 which reciprocates the table 21. The grinding-wheel is mounted so that its plane is adjustable about a horizontal axis. Specification 346,743 is referred to.
Patent GB-330286-A (GB)
Title: Improvements in or relating to valves
IPC: F16L29/02
Filed: 1929-03-05
Abstract: 330,286. Prost, H., and Prost, M. March 5, 1929. Valves acuated indirectly ; piston valves.-A valve comprising a head B fitted with a rubber washer B<1> has a tubular stem B<4> having perforations B<3> near the head adapted to co-operate with, a recess a<1> in the seating A<1> and a coned socket B<2> at the other end to receive a cone G on the delivery pipe coupling. In the form shown in Fig. 2 the valve is opened by screwing the coupling nut F on to the screwed nipple E, so causing the nut to engage through a ball bearing I with a shoulder H on the cone G. A cup leather packing is fitted at D but this may be replaced by plastic material compressed by fluid pressure acting on a movable member carrying the valve seat. In the form shown in Fig. 4 the valve is actuated by a. sleeve F<1> screwed on the valve bodv and engaging a slidable member E to which the coupling nut F is' secured. A stop pin E<6> engages a slot in the member E to prevent rotation and limit the reciprocating movement. In a modification of this form a piston ring packing is inserted between the member E and the valve casing and thin metallic packings are arranged at each end of the sleeve F'.
Patent GB-499547-A (GB)
Title: Improvements in bags of paper or like material, and the manufacture thereof
IPC: B65D30/00
Filed: 1938-03-07
Abstract: 499,547. Paper &c. bags. NAAMLOOZE VENNOOTSCHAP PAPIERWARENFABRIEK VOORHEEN GEB. HELLEMA, and HELLEMA, J. C. March 7, 1938, No. 7139. [Class 94 (ii)] A paper &c. bag of rectangular cross-section having an unseamed flat bottom, is formed from a blank, Fig. 3, with lines of weakness 8, 9, 10, 11, 17, 18, 19, 20, 21, 22, 23, adhesively coated areas 12, 13 and side-seam gumming strips 6, 7, the blank being folded and pressed together as in Fig. 2, to provide a triangular pocket at each end of the bag bottom each of which is completely open from the outside of the bag and has one wall thereof stuck to the inner face of the bottom.
Patent GB-326656-A (GB)
Title: Improvements in grinding bodies for tube or drum mills
IPC: B02C17/20
Filed: 1929-03-05
Abstract: 326,656. Helipebs, Ltd., and Mc- Dougall, R. March 5, 1929. Ball and like mills.-Helical grinding bodies a of spring steel or the like for tube or drum mills are provided internally with one or more helices b of spring steel or the like which are retained by bending in the ends of the bodies a. The helices may be of round or square section material and may be of the same or opposite hand. Specification 281,528 is referred to.
Patent GB-286697-A (GB)
Title: Improvements in means for making fast boats to jetties & the like
IPC: B63B21/00
Filed: 1928-03-08
Abstract: 286,697. Lenek, K. March 9, 1927, [Convention date]. Mooring.-A device to facilitate making fast boats to jetties &c. comprises a screw clamp 2 with a ring 3 through which the moving rope is passed adjacent to the clamping jaw 1. The device permit the rope to be secured to any convenient part of the jetty to which the clamp may be secured. In a modification, the screw 2, Fig. 2, is locked by a padlock passed through a hole in the screw head and a slot in the hinged lever 13. The device may be provided with a rubbing board 9.
Patent GB-1520154-A (GB)
Title: Apparatus for measuring the angular displacement of a bod
IPC: F41G3/22
Filed: 1976-02-24
Abstract: 1520154 Helmet sight system ELLIOTT BROS (LONDON) Ltd 7 Feb 1977 [24 Feb 1976] 07229/76 Heading G1A In a helmet sight system for an aircraft pilot to enable the pilot to direct a weapon merely by looking at the target, the helmet carries at least one set of L.E.D.s on one side of the helmet, preferably arranged equidistantly apart. The helmet carries sighting means 11 for directing the pilot's vision and thus defining the line of sight. A helmet angular position sensor 9, also Fig. 5, is fitted below the windscreen. The sensor comprises two rectilinear slits 31 positioned, as shown, Fig. 5 in front of a linear array of light sensitive charge coupled devices 33. Thus the angular position of any L.E.D., say 3, will determine where the "V"-shaped beam formed by slits 31 intersects the array 33 to provide an angular position measurement. In a preferred system the L.E.D's are repeatedly operated in sequence to provide a three dimensional measurement. Alternatively the light may be distinguished by filters or different wavelength light sources.
Patent GB-102020-A (GB)
Title: Improved Electric Heating Apparatus.
Inventor: ERICHSEN ERLAND
IPC: H05B1/02
Filed: 1916-05-22
Abstract: 102,020. Erichsen, E. May 22, 1916. Electric hot-plates.-An electric hot-plate is fitted with a depressible bar 5 extending across it and bearing contact devices to complete the circuit when a cooking-utensil &c. is placed upon it. As shown, the bar is mounted in slides 6, 7 and fits into a recess 18 in the hot-plate; it is supported by springs 8, 9. A pair of contact blades 11 is mounted on a spring cross-bar 13 to provide a quick break.
Patent GB-802827-A (GB)
Title: Improvements in or relating to portable electric tools
Inventor: GUBBINS CHARLES HENRY
IPC: H01H9/06
Filed: 1956-03-08
Abstract: 802,827. Insulated handles. WOLF ELECTRIC TOOLS, Ltd. March 8, 1956, No. 7318/56. Addition 745,544. Drawings to Specification. Class 61. [Also in Group XXXVII] The handle of the tool of the parent Specification is modified by forming the cover plate wholly of insulating material.
Patent GB-698315-A (GB)
Title: Sponge wetting dish
IPC: B43L21/04
Filed: 1952-03-24
Abstract: <PICT:0698315/III/1> A sponge-wetting dish comprises a grate held by springs above the level of water in a container, which grate can be pushed down against the spring action, so that a sponge is wetted by pressing it down on the grate.  The wall of a water container 1 has in four places, spaced at 90 degrees, vertical guides 2 into which fit sliders 6 of a grate 4.  The grate 4 has slot-like holes and is held above the level of water in the container 1 by compression springs 7 in the guide holes 2.  The sponge is pressed down on the grate with the fingers so that the grate is pushed down and the compressed sponge is brought into contact with the water.
Patent GB-231476-A (GB)
Title: Device for regulating the advance of a band with reference to a cinematographic apparatus controlling said band
IPC: G03B31/00
Filed: 1925-03-20
Abstract: 231,476. Delacommune, C. E. E. March 26, 1924, [Convention, date]. Void [Published under Sect. 91 of the Act]. Combined working of musical instruments with kinematographs. - In a device for running in synchronism with a kinematograph projector a perforated strip controlling an automatic musical instrument accompaniment or controlling an indicating band giving directions to players, means are provided for avoiding disturbance of the synchronism when parts of the film have, been cut away owing to damage &c. For this purpose the perforated strip is provided with holes, one corresponding to each picture cut away from the film, and these holes co-operate with a device for controlling electrically means for advancing the strip a distance equivalent to the length of the picture cut away. Alternatively, the correcting circuit may be closed by a hand-operated switch. A wheel 1 geared to the kinematograph mechanism is secured on a shaft 4 on which are looselv mounted a sleeve 6 and two symmetrically-arranged electromagnets 11, 12 secured together. A projection 41 on the wheel 1 normally bears against the polepiece 14 of the magnet 12, thus causing the magnets to be pushed around by the rotation of the wheel. A ratchet wheel 35 secured on the sleeve 6 is engaged by a pawl 36 pivoted to the wheel 1 and by a pawl 37 pivoted to the pole-piece 14, and a gear wheel 5 secured on the sleeve 6 drives through gearing 7 a roller 8 with teeth 9 for driving the perforated strip 10 provided with the holes 30 corresponding to the pictures cut out of the film. These holes are successively engaged as the strip moves by a projection 29 on the end of a lever 27, and at each such engagement the lever turns on its pivot 28 to close at 31 a circuit from a battery 25 through the windings of the magnets 11, 12 by way of brushes 18, 19 and slip rings 15, 16 on a disc 17 of insulating material secured to the shaft 4. The pole-pieces 13, 14 of the magnets so energized are thereupon drawn against soft iron projections 33, 34 respectively mounted on the wheel 1, and during this movement the pawl 37 pulls the ratchet 35 around the shaft 4, and the pawl 36 slips over a number of the ratchet teeth. When the hole 30 leaves the projection 29 the lever 27 is operated to open the circuit at 31, the magnets 11, 12 are de-energized, and are returned to normal position by a spring 40, the pawl 37 slipping over a number of the ratchet teeth.
Patent GB-908892-A (GB)
Title: Improvements in or relating to methods and apparatus for recording signals
Inventor: TERRY MICHAEL TREACHER
IPC: G11B3/00
Filed: 1958-03-10
Abstract: 908,892. Gramophone disc recording. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 19, 1959 [March 10, 1958; Dec. 29, 1958], Nos. 7598/58 and 41821/58. Class 40 (2). The capacity between a probe electrode 9 and a conductive surface associated with a disc being cut 2 are referred to a bridge network 10 of the type described in Specification 581,164 [see Group XXXVI] to derive an output corresponding to surface irregularities or warpage of the record blank which is fed either to electromagnet means 19, 20 controlling the depth of cut or to a monitor meter. Advance information of the signal to be copied from a master magnetic tape is obtained from auxiliary heads in known manner and fed to the bridge at 25 to vary the depth of cut according to the amplitude of " mono-" signals or a signal corresponding to required hill-and-dale cutting as in stereo recording may be fed in. Alternative bridge arrangements are described in connection with Fig. 2 (not shown) and the Figure accompanying the Provisional Specification.
Patent GB-964696-A (GB)
Title: Improvements in the feeding of cartons from a stack
Inventor: CURTIS ARTHUR SIDNEY
IPC: B65B43/44
Filed: 1960-03-04
Abstract: 964,696. Discharge from a nest of cartons. ROSE BROS. (GAINSBOROUGH) Ltd. March 2, 1961 [March 4, 1960], No. 7670/60. Heading B8S. Cartons 11 are released one by one from magazine 12 and are carried by carrier 32 so as then to be released and then discharged by pushers 57 of endless conveyer 58. Magazine 12 is carried by carriage 17 slidable on the shaft 18 and is reciprocated along the shaft by cam 27 operating through levers 24, 93 and 22. Carrier 32 rotates step by step and carries supports 33 on which a carton is to be held by gripper arms 36, 37 the extensions 38, 39 of which carry a roller 44 operated by cam 46. Cam 46 is operated by cam 53 through linkage 51, 49, 48. Operation.-Cartons 11 are held in magazine 12 by abutments 13 pivoted at 15. As the magazine 12 withdraws along shaft 18 abutments 13 are caused to diverge by the impact of rollers 118 upon fixed cam 119 and to release the bottom carton and then to grip the next bottom carton. At the same time gripper arms 36, 37 grip the released carton being actuated by cam 47 and carry it round on carrier 32 till the carton assumes the bottom position at which cam 46 causes gripper arms 36, 37 to release the carton which is then seized by arms 159 and lowered into contact with a pusher 57 on endless conveyer 58 for discharge.