baber/WOPTO huggingface dataset:
Patent GB-849857-A (GB)
Title: Improvements in or relating to prestressing and reinforcing concrete
IPC: E04C5/08
Filed: 1958-05-28
Abstract: 849,857. Reinforced and prestressed concrete. GRIFFIN, G. J. L. May 27, 1959 [May 28, 1958], No. 17071/58. Class 20(4) A spacer for holding in position a plurality of wires for stressing or reinforcing concrete comprises a resilient deformable tubular member 11, e.g. of polyethylene, nylon or hard rubber, having grooves 13 extending along its length, each groove being adapted to receive one of the wires. The width of the mouth of each groove is narrower than the maximum width of the groove to assist in retaining a wire which fits closely into the groove.
Patent GB-237584-A (GB)
Title: Improvements in aerials for wireless telegraphy and telephony
IPC: H01Q9/30
Filed: 1925-07-03
Abstract: 237,584. Telefunken Ges. f³r Drahtlose Telegraphie. July 25, 1924, [Convention date]. Aerials. - A transmitting aerial excited on a harmonic is provided with a screening device R around the lower portion which extends for a length corresponding substantially to a quarter wavelength. The portion B, C of an aerial excited on a harmonic is stated to radiate little and to cause earth losses which are obviated by the cage R, which absorbs the energy and is connetced to the transmitter.
Patent GB-669248-A (GB)
Title: Cylinder and piston construction
IPC: F15B15/08
Filed: 1950-07-10
Abstract: 669,248. Pistons and cylinders. BROWN BROS. & CO., Ltd., and WALLACE, W. Aug. 31, 1950..[July 10, 1950] No. 17162/50. Class 122(i). In a piston assembly 3, 4 movable in a slotted cylinder 1, having a distance piece 2 whose side adjacent the slot 6 is concave relative thereto and which has a lug 5 projecting through the slot and a guide 9 which engages a flanged sealing strip 7, the flanges 7a of the strip engage recesses 8 in the cylinder bore and the exterior of the cylinder is devoid of any stationary projections. Specification 640,622 is referred to.
Patent GB-156052-A (GB)
Title: Improvements in adding and listing machines
IPC: B41J29/40
Filed: 1920-06-24
Abstract: 156,052. White, A. E., (Burroughs Adding Machine Co.). June 24, 1920. Adding-apparatus with printing-mechanism; column-spacing.-Relates to key-set independentlyoperated machines of the Burroughs type having date-printing mechanism controlled by special banks of non-registering keys, and consists of means whereby the necessity for setting up the same date several times is avoided by depression of a "date repeat key" 11, by means of which the rack 13a, in mesh with the small gear-wheel 14 secured to the rotatable cross-rod 10 of the release bail 9, rotates the cross-rod 10 clockwise. The portions of the cross-rod 10 opposite the detents 8<a> corresponding to the three rows of date keys 2<a> are notched as shown in Fig. 4 at the point 10<a>, so that the release bail 9 on moving forward to the limiting position restores the ordinary detents 8 and the ordinary keys 2 to the normal position, but does not affect the date detents 8<a> or keys 2<a>, leaving them depressed. The daterepeat key 11 is kept indefinitely depressed by a notch fitting under the upper plate of the keyboard ; when this key is manually released, the date detents and keys are restored by the action of the cross-rod 10 as in the case of the ordinary detents and keys. Should it be necessary to print the date against some entries and not others, a shutter 35 is provided, which disables the printing-hammer 16, Fig. 1. This shutter is operated by a spring-actuated lever 36, controlled by a blade 32 on a common pivot 31 with another blade 30 which is depressed by adjustable positioning-members 20 situated on the laterally moving paper carriage 18 at points where the date is not to be printed.
Patent GB-1384123-A (GB)
Title: Lockstitch loop taker in a sewing machine
Inventor: KETTERER S J
IPC: D05B59/00
Filed: 1972-04-14
Abstract: 1384123 Sewing-machine SINGER CO 14 April 1972 [20 April 1971] 17251/72 Heading DIG  In a loop taker for a lock stitch sewing machine the bobbin thread B passes out of the bobbin case at a position opposite the needle (Fig. 7) is tensioned by a spring plate 82 pressing against it and then passes under the bobbin case and rubs against a raised boss 45 in the rotary loop taker body 28 before passing under a flange 91 and over a guide arm 75. The boss 45 has parts of its edge chamfered 46, 47, and parts left square 48, 49; when the square parts pass under the thread they wipe it sideways (Fig. 6). The bobbin case is restrained by a spring arm 62, a turned down lip 72 and an arm 56 with another turned down lip. The needle always descends on the same side of the bobbin thread, and the beak 42 passes the loop about the bobbin case, as is usual, and over the guide arm 75. The arrangement is said to reconcile the requirements for straight and zig-zag stitching. The drive is provided through a shaft 22 and bevel gears 29, 31. A bobbin thread replenishing mechanism is illustrated in Figs. 3 but does not form part of the invention.
Patent GB-911608-A (GB)
Title: Apparatus for coating discrete solids
IPC: A61K9/50
Filed: 1959-05-21
Abstract: Discrete solids and coating material are introduced into a coating chamber 4 comprising, connected together axially, a body portion 6, a tapered lower portion 8 and a gas supply line 12 of substantially smaller area than the body portion, gas being exhausted from the top of the chamber and the pressure of the gas supplied being sufficient to maintain the solids in circulation. As shown, air is supplied through line 12 to chamber 4 and the area of portions 6 is 4 to 100 times and preferably 6 to 15 times the area of supply line 12.  Line 12 is connected to line 16 which is secured to a conduit 22 in a chamber 20 connected to the discharge side of blower 28.  Steam coils 29 heat the air in conduit 24 when desired.  Chamber 20 has a door 34 <PICT:0911608/III/1> and a drawer type recovery pan 36 for receiving the coated solids. Atomized coating is supplied through nozzle 44 connected through a jacketed line 46 to a pump 48.  Pump 48 is supplied with coating material from a reservoir 52 which is heated if necessary.  The gas is exhausted through line 62 connected to a reduced portion 64 discharging into a centrifugal separator.  The discrete solids are supplied from a hopper 74 to line 62 through a pinch valve 78. Solid coating materials can be supplied from a hopper 86 to the Venturi portion 84 of a line 82 connected to the line 16. A downwardly directed atomizing nozzle 90 directs coating material at the solids in the upper portion of chamber 4.
Patent GB-639574-A (GB)
Title: Apparatus for simultaneously mounting the balls of a ball bearing into the race
IPC: F16C43/06
Filed: 1947-07-01
Abstract: 639,574. Ball-bearings; greasing. CRISTINA, G. July 1, 1947, No. 17335. [Class 12(i) and 12 (iii)] A device for feeding simultaneously all the balls into a bearing raceway has a movable head forming with a ball reservoir an annular feed bore through which the balls are ejected, against restraining means, when the head is engaged with the race and the device is moved axially thereto. The device may have an attachment for greasing the raceway to retain the balls in position. As shown, the ball reservoir 15 has one end slotted at 16 to retain the webs of a separator 17 a rim 17<SP>1</SP> of which is guided by sleeves 20, 20<SP>1</SP> slidable on the reservoir 15. The balls pass from the latter through holes 18 in the separator 17 and are guided by a conical surface 25 of a member 24 to a festooned edge 26 thereof where a resilient disc 23 retains them. When a race is engaged by the end of the sleeve 20 and the body of the device is moved axially thereto an extractor 19 forces the balls past the resilient disc 23 into the raceway. The embodiment shown includes a greasing device comprising a reservoir 1 on an extension 1<SP>1</SP> of which an axially slidable delivery head 2 is mounted. The bottom 3 of the head 2 has a circular row of holes 4 corresponding in number and position to that of the balls to be fitted. The race is engaged with the bottom 5<SP>1</SP> of an adjustable collar 5 and axial pressure moves the head 2 and discharges the grease. The grease feed is effected by a piston 11 whose resilient pins 13 engage the screwthreading of an eccentric shaft 12 fixed to the ball reservoir 15 whereby rotation of the latter relative to the grease reservoir axially moves the piston. A spring-loaded ball 15<SP>1</SP> locates the two reservoirs. In another embodiment of the ball feeding device operation is effected by depressing the knob of a spring-loaded shaft terminated by a tumbler-shaped feed member which ejects the balls, the resilient disc being replaced by a spring-loaded rigid member.
Patent GB-499492-A (GB)
Title: Improvements in and connected with dust-bins and apparatus for emptying dust-bins into dust carts
IPC: B65F3/12
Filed: 1937-06-22
Abstract: 499,492. Refuse vehicles. GURNEY, H. June 22, 1937, No. 17367. [Class 108 (i)] In means for emptying dust-bins into refuse carts, of the kind in which the lid 12<1> of a dust-bin is coupled to a pivoted closure plate 12<2> adapted normally to close an aperture in a pivoted front plate 4 on the cart, an L-shaped lifting-member 1, 2 for the bin is pivoted at its upper end to the lower end of the plate 4 and is adapted during the movement of the plate 4 to its normal position to abut a stationary part of the cart, e.g. a flange or rib 16, which then serves as a fulcrum by means of which the front plate is forced into its normal position, the closure plate moving with the front plate to close the aperture in any manner, preferably by means of counterweights at its lower end. The upper end of the limb 1. of the lifting-member is provided with a transverse bar 5, Fig. 3, having end pins 6 adapted to engage hooks 7 on the plate 4 and cheeks 6<1> for retaining the bar in its proper position. The bottom of the bin to be emptied is adapted to rest on the limb 2 of the lifting-member with its rim engaging a groove 3 on the limb, or the limb may have a circular rib engaging under the bottom of the bin, while to present longitudinal displacement of the bin on the lifting-member, the limb 1 is provided with a bar 8 curved to conform to the periphery of the bin, or with a pair of adjustable transversely-slidable arms, having end or side recesses for engaging handles 10 on the bin. The recesses may be formed in parts pivoted on the bar and spring-pressed into position. The limb 1 may be telescopic for adjustment to suit bins of different heights. When not in use the lifting-members may be raised into an upright position by a spring- pressed plunger. Specification 489,795 is referred to.
Patent GB-1310471-A (GB)
Title: Digital memory circuits
IPC: G11C7/02
Filed: 1971-05-27
Abstract: 1310471 Variable threshold FET data storage SPERRY RAND CORP 27 May 1971 [15 June 1970] 17368/71 Heading G4C [Also in Divisions H1 and H3] A digital memory matrix made of variable threshold IGFETs is disclosed. The matrix.-The matrix shown comprises two, 2-bit words, stored horizontally in variable threshold IGFETs 19, 21 and 25, 27 respectively, though the matrix can be of far greater size. The IGFETs are described in Specifications 1,231,227 and 1,280,519 and have the property that their electrical conductivity is alterable by impressing a binary polarity voltage of a certain magnitude between the gate and the substrate, the voltage polarity determining the sense of the threshold variation. Construction.-The matrix is formed as an integrated circuit on a single N-type substrate 55 lying on a p-type bulk layer 57. P-type drain sections 59, 61 and source sections 63, 65 are diffused in by known methods, an electrically insulating layer 67 covers these, and a metal layer 69 is provided having gates 75, 77. Regions 71, 73 isolate the memory from surrounding regions. Opposite conductivity transistors may also be employed. Writing (Fig. 3, not shown).-(i) To write a binary 1 into FET 21 the memory elements are firstly cleared to zero by setting word lines W1, W2 to earth and setting the substrate and bit lines 43, B1, B2 to - 60 V. This places 60 V across each gate insulator which sets the positive threshold. Capacitors 31-37 block any D.C. current flow. (ii) During a subsequent time interval a 1 is written into FET 21 while the other FETs are left as 0 by setting line W1 to - 60 V, line B1 to - 50 V, and lines W2, 43 and B2 to earth. FET 19 has its gate at - 60 V and its source at - 50 V so a conducting channel is formed without the threshold being changed. FET 21 has - 60 V applied across the gate/substrate and the threshold goes to its negative value. The voltage across the gates of FETs 25 and 27 is zero so their thresholds are unchanged. (iii) In a third time interval the desired bit pattern is set in the second word leaving the first word unchanged. Readiog.-(i) In a first time interval the data in the first word is sampled by applying -15 V to line W1, - 5 V to lines B1 B2 and earth to the other lines. In transistor 19 a source/delay current flows thus indicating a binary 0.  Transistor 19 does not conduct thus indicating binary 1. (ii) In a subsequent time interval line W1 is  earthed and the other lines set to - 15 V. This  sets a voltage across the FETs opposite to that  during sampling which restores charge to the  gate insulator and thus prolongs the duration of charge storage, e.g. up to 40 times over the  prior art.
Patent GB-274446-A (GB)
Title: Improvements in or relating to methods of and apparatus for conveying and applying gummed wrapper or label sheets to boxes or the like
IPC: B65C9/08
Filed: 1927-06-30
Abstract: 274,446. Stokes & Smith Co., (Assignees of Davis, S. H.). July 13, 1926, [Convention date]. Affixing by adhesives. - Wrappers, labels, &c., after being coated with adhesive, are held flat on a feed belt by suction applied to the uncoated wrapper face, the feed belt, porous to air, moving over, or constituting, a wall of a suction chamber. Stacked wrappers 3 are fed, one by one, to a glue-applying roll 8, which adhesively coats the upper face of each wrapper. Stripping plates 8<b> pass the wrapper on to a porous belt 9 which moves over a hollow casing 20 wherein suction is maintained by a fan 23. The perforated top 24 of the casing 20 is entirely covered by the belt 9, and the length of suction chamber opening may be limited by an adjustable shutter 25 over the forward end of the casing 20. A modified construction comprises an extension suction chamber, pivoted to the main suction chamber, and formed with a pointed end adjacent the point of sheet delivery from the gumming roll. when the frame carrying the upper feed rolls and the gumming roll is thrown back for access to the rolls, a roller on the frame engages and rotates the pivoted extension chamber to break the auxiliary suction connection. Specification 262,053 is referred to.
Patent GB-334861-A (GB)
Title: Improvements in and relating to wireless receiving apparatus
IPC: H04B1/08
Filed: 1929-06-07
Abstract: 334,861. Sylvester, H. June 7, 1929. Vacuum tubes.-In wireless receiving apparatus employing thermionic valves which are sunk in a well or the like in the apparatus, such as in portable receivers of the suit-case type, a plate a, Fig. 2, is arranged above the valves c so as to close completely the wall or the like, and the underside of the plate is provided with recesses a<1>, which may be lined with cottonwool , spongy rubber &c., engaging the tops of the valves. Fig. 3 shows a modified form in which cup-shaped members e are secured to the plate a and fit over the valves c, light springs g and cottonwool f being interposed; or springs may be used without. the members e.
Patent GB-421038-A (GB)
Title: Hermetical gas mask
IPC: A62B18/02
Filed: 1934-06-13
Abstract: 421,038. Respiratory masks. DEHAN, G. DOLNE-, 37, Rue des Augustins, Liege, Belgium. June 13, 1934, No. 17555. [Class 81 (ii)] A respiratory mask 1 is made of rigid or semirigid materials, such as metal or cloth-covered rubber, and is provided with pads 2 of asbestos, rubber or other plastic substance, located where the mask touches the cheeks and in front of and behind the ears ; around the nose and mouth packing means comprising an inflatable tube 4<a>, 4b, is provided, the upper part 4<a> being rigidly secured to the mask, and the lower part 4<b>, which may be a separate unit, being attached by a strip of fabric secured along one edge to the packing and fastened along the opposite end to the mask as by press-studs, this construction permitting rolling movement of the packing over the skin and preventing chafing due to movement of the jaw. The mask contains a bifurcated air inlet tube, one limb 9<a> of which is shown, connected to an absorbent canister, and a receptacle 7 for moisture from the mouth supported opposite the lips.
Patent GB-1412757-A (GB)
Title: Azo dyestuffs
IPC: C09B29/42
Filed: 1972-04-17
Abstract: 1412757 Basic azo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 22 March 1973 [17 April 1972] 17583/72 Heading C4P Azo dyes free from carboxylic or sulphonic acid groups have the formula wherein R is opt. subs. alkyl or aralkyl, R<SP>1</SP> is H amino or subs. amino, or an opt. subs. alkyl, aralkyl, cycloalkyl or aryl radical, R<SP>2</SP> is H, opt. subs. alkyl, aralkyl, cycloalkyl or aryl, CN, nitro, halogen, amino or subs. amino, or COR<SP>6</SP>, COOR<SP>6</SP>, CONR<SP>6</SP>R<SP>7</SP> or SO 2 NR<SP>6</SP>R<SP>7</SP> wherein R<SP>6</SP> and R<SP>7</SP> independently represent H or opt. subs. alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radicals, or with the N form a 5- or 6-membered ring, R<SP>3</SP> is H, or opt. subs. alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical or OH, CN, COR<SP>6</SP>, COOR<SP>6</SP> or CONR<SP>6</SP>R<SP>7</SP>, or R<SP>2</SP> and R<SP>3</SP> taken together may represent a 5-, 6- or 7-membered ring either satd. or unsatd. fused to the pyridone ring, R<SP>4</SP> and R<SP>5</SP> are non-cogenic substs., X is an anion and m and n are integers from 1 to 3. They are made by quaternation, and give greenish-yellow shades on polymeric textiles especially polyacrylonitrile.
Patent GB-1058015-A (GB)
Title: Voltage regulating device
IPC: B60L9/26
Filed: 1964-04-28
Abstract: 1,058,015. Rectifying; control of D.C. motors. TOKYO SHIBAURA ELECTRIC CO. Ltd. April 28, 1964 [April 30, 1963], No. 17627/64. Headings H2F and H2J. [Also in Division H1] In an arrangement in which the D.C. voltage supplied to a load from a rectifier and transformer is to be gradually increased along a series of transformer taps, each tap about to supply voltage is first connected to the rectifier and load via a path containing a pair of controlled rectifiers which by controlling their firing angle gradually increase the voltage applied to the load up to the tap voltage, a second path containing diodes now takes over enabling the first path to be open-circuited in a no-current condition and connected to the next tap. As shown in Fig. 1, when switches S 1  and K 3  are closed SCR's 22 or 23 carry current and are phase controlled to gradually increase the load voltage to T 1 , whereupon the current is directed to switch K 1  and rectifiers 16-17 by switching off the SCR's, enabling K 3  to be opened and S 2  and K 4  closed. By firing the SCR's the current is directed back to the main path but is taken from tap T 2  through S 2  and K 4 , so now enabling the tap switch S 1  to be opened in a no-current condition. When the SCR's are switched off this time the current flows through K 2  and rectifiers 14-15. The transformer turns are not short-circuited on tap switching because one of switches K 4  and K 3  is always open. The phase control pulses are delivered by the circuit shown at the bottom of Fig. 1 at the instant when unijunction transistor 36 fires, determined by the CR circuit 34-33. Switches K 3  and K 4  either have current interrupting capabilities or are provided with a booster transformer (Fig. 2, not shown) which lowers or raises voltage at junctions 27 to reverse bias either one of diodes 14-17 or controlled rectifiers 21 and 22 to enable switches K 1 -K 4  to open or close in a no-current condition.
Patent GB-1149598-A (GB)
Title: Lippmann images
IPC: G03C5/42
Filed: 1967-04-18
Abstract: 1,149,598. Lippman images. INTERNATIONAL BUSINESS MACHINES CORP. April 18, 1967 [Aug.29, 1966], No.17643/67. Heading G2C. Lippman silver images are rendered more light transmittant and light stable by treating them with an aqueous medium containing mercury iodide and potassiumiodide.
Patent GB-1509835-A (GB)
Title: Device for starting engines and for driving auxiliary equipment for aircraft
IPC: F02N7/12
Filed: 1976-04-30
Abstract: 1509835 Starting aircraft engines; engine turning gear VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 30 April 1976 [30 April 1975] 17753/76 Headings F1G and F1K An aircraft engine 1 is started using an air turbine 12 supplied with air by an auxiliary gas turbine engine 5 which also drives a generator 7 and a pump 6 via an over-running clutch 8 and gearing 9, 10. The air turbine connects with the engine shaft 2 via gearing 13 and over-running clutch 14, and the shaft 2 connects with the gear 10 via an over-running clutch 15 and gear 11 so that the engine 1 can drive the generator and the pump when it is running. The air turbine may also be supplied with air from a ground connection 19 and with gas from a unit 20 in which a monopropellant fuel such as hydrazine undergoes dissociation in a chamber 23. A clear coupling 25 may be provided to permit the air turbine to be used to drive the generator and the pump when engines 1, 5 are not running.
Patent GB-1189883-A (GB)
Title: Method and Apparatus for the Manufacture of Moulds for Casting Metals
IPC: B22C15/10
Filed: 1967-04-18
Abstract: 1,189,883. Moulding machines. MASCHINENFABRIK AUGSBURG-NURNBERG. 18 April, 1967 [21 April, 1966], No. 17830/67. Heading B3F. [Also in Division B1] Foundry mould material is compacted in a flask or core-box by the introduction of a stirrer having a handhold portion (formed by a resilient sleeve 10 surrounded by a metal sleeve 11) and a vibrator 1 operated by compressed fluid or electrically, and with a removable, wear-resistant cap 1a For example, compressed air from a hose connection 6 and controlled by a rotatable sleeve 5, may pass through an inner pipe 7 to the vibrator 1 and then be exhausted at ports 9. A pipe 4, bearing a lamp 12, connects the handhold 10, 11 to the vibrator 1 by means of a sleeve 2 and a rubber collar 3.
Patent GB-411302-A (GB)
Title: Improvements in roll-film cases
IPC: G03B1/48
Filed: 1933-06-23
Abstract: 411,302. Roll-film cameras. ZEISS, C., [Firm of], Carl-Zeiss-Strasse. Jena, Germany. June 23, 1933, No. 17907. Convention date, June 28, 1932. [Class 98 (i).] The film c is held flat against a suction plate d which is normally retracted by a spring i and is moved forward against a focal plane frame e<1> synchronously with the film movement by a cam h. The plate d is hollow and has face suction grooves d<4> and channels d<3> communicating with the hollow space d<1> within the plate. A suction-producing diaphragm g is mounted across this space and connected to a central rod g<1> slidably mounted in a sleeve d<2> which is rigidly secured to the plate d. The rod g<1> carries a disc g<2> and both this disc and the sleeve d<2> are slidably mounted in a fixed carrying block f. The spring i within the block f normally holds the rod gland suction plate d in retracted position. The strength of the diaphragm g is such that on rotating the cam h the diaphragm first carries the suction plate against the frame e<1> and thereafter is further moved within the plate to produce a suction action on the film c, the air below the diaphragm escaping through a hollow channel g<4> in the rod g<1>.