baber/WOPTO huggingface dataset:
Patent GB-720559-A (GB)
Title: Improvements in or connected with valves for vapours and liquids
IPC: F16K1/38
Filed: 1952-03-20
Abstract: 720,559. Valves. PATZIG, E. March 20 1952 [March 20, 1951], No. 7276/52. Class 135 A valve closure member of smooth contour is of truncated conical shape pointing in the upstream direction and of acutely conical shape pointing in the downstream direction, and the acutely conical part is ground into a corresponding valve seat. In one embodiment, the valve is made up of two such closure members 2, 10, loosely coupled together. The stem of the valve is formed with a quick thread 17 engaging a corresponding thread on the surrounding valve casing, and the valve is opened or closed by rotating a handle 6 carried on the end of the stem. The screw-thread actuating device 17 may be replaced by a cap attached to the stem and screwing onto the outside of the valve casing. In a modification, the two closure members point in opposite directions and form an integral structure positively moved to engage the seats alternately. Flow through an intermediately located inlet can thus be diverted to either of the two outlets which are located at the ends of the closure member.
Patent GB-461526-A (GB)
Title: Improvements in refrigerator or heating cabinets
IPC: F25D25/02
Filed: 1936-03-11
Abstract: 461,526. Oven shelves. ELECTROLUX, Ltd. March 11, 1936, No. 7335. Convention date, March 13, 1935. [Class 126] [Also in Group XIV] A wire grid shelf is provided at its rear end with claws 9, 10 which engage pressedout beads 3 terminating short of the rear wall to allow the claws to be lifted and having front enlargements 11, Fig. 3, serving as stops. Two sets of differentially offset claws on lateral frames 12, 13, Fig. 5, may be provided so that the grid may be reversed to occupy a different position.
Patent GB-1595505-A (GB)
Title: Device for storing card-like objects
IPC: B42F7/14
Filed: 1978-02-23
Abstract: A storage device for storing card-like objects, for example photographs. The device is in the form of a cassette like container in which the objects are stacked upright in a rear section comprising the base, lower parts of each side wall and the rear wall of the cassette. A first section of the cassette is pivoted about the front edge of the base and comprises at least part of the top, the front wall and upper parts of the side walls complementary with the side wall lower parts. In the open condition of the cassette photographs can readily be turned forward one by one to stack face downwards on the front section. A plurality of such cassettes may be pivotally supported in a rectangular frame, one behind the other, so that the contents of each cassette can be readily inspected in turn.
Patent GB-199103-A (GB)
Title: Improvements in or relating to propeller pencils
IPC: B43K21/10
Filed: 1922-03-13
Abstract: 199,103. Hudson, G. R. March 13, 1922. Pencilholders.-In a pencil-holder pro. vided with propelling. mechanism for the lead and means for retracting the mechanism and lead within the casing without moving the lead in its sheath the device for lock ing the propelling. mechanism and lead in the forward position is released through an opening in the side of the outer case and independently of the knob or device for effecting the forward movement. The device is described in conjunction with the screw-propelling mechanism of Specification 179,631. The lead-holder h is provided with a key i projecting through a slot in a tube j into engagement with a coil n surrounding the tube j and frictionally held in a tube b. The tube b is releasably secured in the casing a by means of a split sleeve c provided with a number of circumferential projections, one of which extends into a slot d in the end of the casing. The tube j, which is secured to a cap k slidably mounted on the end of the casing, extends through an extension l of the tube b acting as a receptacle for spare leads, a closure cap m for the extension, and a spring p acting between the cap m and collar o in the casing. A conical catch e on the tube b is adapted to engage with a catch f which may form part of a pocket-clip g. When required for use, the cap k is pushed in against the action of the spring p, and carries with it the whole of the mechanism until the catches e, f engage to lock the lead in the forward position. When worn, the lead may be propelled by turning the cap k. On placing the holder in the pocket, the clip g is raised sufficiently to disengage the catches e, f, when the spring p returns the parts to the enclosed position. As shown in Fig. 3, the propelling- mechanism is detachably secured in the barrel by the co-operation of a projection s in the casing with a groove in the sleeve c, and the catch for securing the mechanism in the forward position comprises a spring tongue t secured to the sleeve c and provided with a projection t<1>adapted to engage with an annular groove in the cap k. In a further modification, the spring p is dispensed with, and a knob, projecting through a slot in the casing, is secured to the propelling-mechanism. The knob is engaged by the pocket-clip to hold the mechanism in the forward position, and the act of placing the holder in the pocket releases the knob and pushes it rearwardly to the retracted position.
Patent GB-375742-A (GB)
Title: Improved device for mounting an inner casing in an outer in machines and the like
IPC: F01D25/26
Filed: 1932-03-11
Abstract: 375,742. Turbine casings. AI,LM€NNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. March 11, 1932, No. 7353. Convention date, March 11, 1931. Addition to 369,680. [Class 110 (iii).] The parent Specification describes connecting means between an inner and an outer turbine casing in which differential radial and axial expansion between the casings is provided for by intermediate mountings. A modified arrangement comprises two rings 3, 4, which are attached to the inner and outer casings 1, 2, respectively, in which radial slots 5 are cut. Connecting pieces 6, Fig. 4, are inserted in these slots, which touch the bottom in ring 4 but not in ring 3. An outer locking ring 7 with an inner flange 8 is locked in position by pins 9. Radial and axial clearances a, b are provided between rings 3, 4 when the casings are cold. In another arrangement the two rings 3, 4 are substantially of the same outer diameter, and the locking ring 7 embraces the outer periphery of ring 4 only. Fig. 7 shows a modification in which the connecting pieces are locked to the ring 3 by a band 10. In forming the slots 5, the two rings 3, 4 may be laid together and mounted together in the milling machine.
Patent GB-683415-A (GB)
Title: Improvements in hinges for folding rules
IPC: G01B3/06
Filed: 1950-03-24
Abstract: 683,415. Hinges. MANDER, I. R. Oct. 16,1950 [March 24, 1950], No. 7461/50. Class 65 (ii) In a hinge for a folding rule of the kind incorporating a spring to produce pressure between the hinge parts, the hinge pin is constituted as screw clamping-means for enabling said pressure to be adjusted. Hinge leaves 10, embedded in the blades 8, 9 of the rule, end in contiguous ears 11 traversed by a screw-threaded hinge pin 12 which extends free in a collar 13 abutting one outside ear and screws into a collar 14 abutting the other outside ear, a coil spring 16 encircling the central part of the hinge pin and abutting the inner ears. In a modification the leaves are of channel or box cross section to receive the ends of the respective blades. In a further modification one blade is provided with a central ear internally screw-threaded right and left hand to receive a pair of opposed screws which extend freely through outer ears provided on the other blade, a coil spring being interposed between each outer ear and the central ear.
Patent GB-1338194-A (GB)
Title: Process for the preparation of hydroxy substituted aminimides
IPC: C07C/
Filed: 1972-02-17
Abstract: 1338194 Tert.-amine monoimides from oxirans and dialkylhydrazides ASHLAND OIL Inc 17 Feb 1972 [28 May 1971] 7483/72 Heading C2C  Tert.-amine monoimides are made by reacting dialkyl hydrazides of monocarboxylic acids with compounds containing oxiran groups.
Patent GB-502058-A (GB)
Title: Improvements in or relating to devices for securing anti-interference caps on sparking plugs
IPC: H01T13/05
Filed: 1938-03-12
Abstract: 502,058. Two-part couplings. ROSCH GES., R. March 12, 1938, No. 7730. Convention date, March 13, 1937. [Class 38 (i)] [Also in Group XXVIII] A radio-screened sparking-plug coupling is secured by a spring bail h, pivoted in a member b secured to the casing a and tightened in position by a spherically-ended lever i rotatable to press in a concave seating p. The slot r in the lever through which the bail passes is narrower in the middle than at the ends, permitting the lever to be operated at one side or the other of its medial position.
Patent GB-629321-A (GB)
Title: Improvements in steel flooring frames
IPC: E04B5/10
Filed: 1947-03-21
Abstract: 629,321. Floor supports. WELDALL & ASSEMBLY, Ltd., and LIGHTBOURNE, R. C. March 21, 1947, No. 7763. [Class 20(iv)]  Preformed metal flooring support units 1, formed as skeleton rectangular frames which are fixed together to form an understructure for supporting floor boards, have side members 2 of channel shaped cross section the side webs of which are flanged outwardly 4 to form a groove which receives a strip of wood or the like to which the floor boards may be nailed &c. The members 2 of top-hat section with the portions 5 outermost are joined by members 6 of C cross section, and the frame is completed by longitudinal members 2a of top hat section, transverse members, and diagonal stays. The flanges 4 of the members 2, 2a may be perforated at intervals to receive nails which secure the nailing strips, and clips 10a are attached to the members 2a to bear on the strips seated in the channels 10..The grooves are secured together by bolts passing through the abutting portions 5 of adjacent side members, this forming U-shaped channels 7 which house the nailing strips. The' strips on the underside form an anchorage for the ceiling.
Patent GB-1377261-A (GB)
Title: Guiding comb for a jet loom
IPC: D03D47/00
Filed: 1972-02-21
Abstract: 1377261 Jet looms ZBROJOVKA VSETIN NARODNI PODNIK 21 Feb 1972 7965/72 Heading D1E A jet loom confusor 1 has teeth oscillated by a rack so that they are parallel with the warp threads 8 for entry into the shed and, once in the shed, may be pivoted into contact with each other to form a tunnel 6 for picking of the weft.
Patent GB-1045482-A (GB)
Title: Improvements in or relating to back boilers for domestic fireplaces or stoves
IPC: F24B1/183
Filed: 1962-03-01
Abstract: 1,045,482. Cleaning pipes. J. L. DAVIES. June 4, 1963 [March 1, 1962], No. 8029/62. Heading F2N. [Also in Division F4] A back boiler for domestic fireplaces or stoves has four bent flue pipes 32 passing through the water space 1 and emerging into a duct 7. The pipes 32 contain chains formed from flat plates 37 and normal chain links 38 which chains act as restrictors, and on operation of a damper 34 to which they are connected, as cleaners. Different sorts of chains may be used for different flues and fuels.
Patent GB-1439727-A (GB)
Title: Interlockijg systems with a number of individual key elements
IPC: G06K7/10
Filed: 1974-02-22
Abstract: 1439727 Keys A R RAUSING 22 Feb 1974 8072/74 Heading E2A [Also in Division G4] A "key" for an interlocking system (e.g. for controlling a money dispenser) consists of a card divided into coded areas some of which are transparent to radio active radiation and some of which are not, the surfaces of the card having a visually homogeneous appearance. As described the card consists of a plastics supporting sheet which is coated with a chemical compound incorporating a salt or oxide of lead or mercury to form an opaque portion, this coating being substituted by another coating which is transparent to radiation in areas which define coded index marks. The card is inserted between a radiation source and a detector, recognition of the correct code causing a circuit 20, Fig. 3 (not shown) to be completed to energise a coil (22) for the operation of a dispenser.
Patent GB-718540-A (GB)
Title: An improved scholastic device for teaching geography and like subjects
IPC: G09B19/00
Filed: 1952-03-31
Abstract: 718,540. Stencils. BRAUN, D. F. April 7, 1953 [March 31, 1952], No. 8151/52. Class 100 (2). A stencil for drawing a map comprises a flat sheet 1 formed to the outline of a country or continent and having slots and holes therein through which markings can be made to represent various features on the map. In the form shown boundary lines are represented by lines of slots 2, rivers by shaped slots 3, lakes by gaps 4 and towns by small holes 5. The stencil may be cut or punched from a sheet of plastic material or moulded from a thermoplastic resin.
Patent GB-568697-A (GB)
Title: Improvements in and relating to noise suppression circuits for radio receiving apparatus and the like
IPC: H03G3/28
Filed: 1943-05-24
Abstract: 568,697. Wireless receiving circuits. BRITISH THOMSON-HOUSTON CO., Ltd. May 24, 1943, No. 8205. Convention date. May 23, 1942. [Class 40 (v)] In a radio receiver having a highfrequency channel for signal-modulated carrier waves and noise voltages and a signal channel through which signals and noise are amplified after demodulation, a noise suppression arrangement comprises an electron discharge device having a load impedance across which is developed a voltage drop which is employed to control the amplification of the signal channel, the current flow through the electron discharge device being controlled by a control electrode to which are applied two opposing bias voltages, one of which is obtained by demodulating noise voltages in the highfrequency channel and effects the disabling of the signal channel, while the other is produced in response to the appearance of a carrier wave in the high-frequency channel and is employed to reduce or remove the disabling of the signal channel. Fig. 1 shows the invention applied to a frequency modulation receiver comprising an I.F. output transformer 10, 15, limiter 11, phase-shift discriminator 16, and detector 12 comprising diodes 63, 64. The modulation signal appears across resistances 67, 68 and is fed through a frequency correcting network 20, 21, 23 to the first audio amplifier 13. Noise voltages are fed from the detector to the grid 27 of a muting valve 24 through a high-pass filter comprising condenser 28 and resistors 39 and 17, which thus also affords a connection from the grid 27 to the common point of resistors 17, 18 in the grid circuit of the limiter 11. In the absence of a carrier signal, the cathode of valve 24 is biassed by variable tapping 30 so as just to pass current. The resulting fall in potential across anode resistance 37 is fed through resistance 38 to bias audio amplifier 13 to cut-off. On receiving a carrier signal, the limiter 11 causes a reduction of noise output and reduces the positive bias applied to grid 27, thus driving valve 24 to cut-off and releasing valve 13. In addition, the negative voltage appearing across resistor 17 due to rectification of the carrier wave in the grid circuit of the limiter 11, is also fed to grid 27 to produce cut-off. This arrangement enables even weak carrier signals to be received unless the accompanying noise is strong enough to effect muting. Also in the case of overmodulation providing noise voltages tending to produce muting, the bias from resistor 17, due to the carrier, would keep the receiver operating. In a modification, Fig. 2 (not shown), the noise voltage for positively biassing the muting valve is obtained from the screen of the limiter. This energy is passed to an amplifier having an anode circuit tuned to a supersonic frequency, the output from which is rectified to give the positive bias.
Patent GB-115521-A (GB)
Title: Improvements in Wet Filters, Water Coolers, Humidifying Apparatus and the like.
Inventor: CLEWORTH ALFRED BUTTERWORTH
IPC: B01D47/16
Filed: 1917-06-08
Abstract: 115,521. Cleworth, A. B. June 8, 1917. Jet condensers.-An apparatus for condensing vapours of the kind in which gases are passed axially between wheel-like members which rotate m liquid in a chamber is constructed with rotating or oscillating members formed of expanded metal which may be coated with a protective layer of earthenware, enamel, cement, asbestos &c., and the enclosing chamber is provided with a small depth of liquid only so that the peripheral portions of the wheels or, disks only are wetted thereby, the remainder being wetted by the flow of the liquid towards the centre of the disks as they rotate and by the liquid carried forward by the gases. The liquid may be circulated through the chamber in paths controlled by baffle plates, and the motion of this liquid or the gases may be used to drive the disks, or these may be positively driven continuously or alternately in different directions and different disks may be driven in opposite directions and at different speeds. As shown the vapour to be treated is circulated by a fan A, and passes between three sets of expanded metal disks b, secured to hubs d on a driven shaft e, the disks being secured by pins c inserted through metal rings b<1> on the disks b and through spacing blocks b<2>. The liquid g in which the peripheries of the disks dip may be continuously circulated from the inlet p to outlet q, and baffles a<3>, o may control the path of the liquid. In modifications the disks are formed as segmental sheets of expanded metal which are secured to radial arms on a rotary hub. According to the Provisional Specification the disks may be formed of wire netting, perforated metal, earthenware, or cement, basketwork, textile material of coarse mesh, or other openwork material.
Patent GB-123799-A (GB)
Title: Improvements relating to Cylindrical Printing Surfaces.
Inventor: COREY JAMES ALBERT
IPC: B41C1/18
Filed: 1918-02-25
Abstract: 123,799. Corey, J. A. Feb. 25, 1918. Electrotype.-Consists in the production of a jointless cylindrical electrotype by depositing the metal under such conditions as to produce a hard and dense deposit. The invention is particularly for use in printing repetition work such as bank notes and postage stamps. The mould is obtained by electro deposition upon a cylindrical original or master cylinder, in the form of a dense and hard deposit by the use of a high current density and a moving cathode or circulating electrolyte, and is of such a thickness that it is self-supporting but resilient so that, after being stripped from the master, it will spring back or may be readily pressed back to cylindrical form. To remove the mould from the master it is cut longitudinally and boiling water is poured over it. It is then sprung off the master and the ends joined together by solder or by wax which is rendered conductive by a coating of graphite. The mould is then placed in the electrolyte and the electrotype deposited on its inner surface, the conditions under which the deposit is made being the same as for the preparation of the mould. The mould is removed by unsoldering the joint and springing it off the electrotype. The inner surface of the electrotype is ground smooth, and the electrotype is supported during the grinding operation by a pair of semicircular concave jaws secured to the face-plate of a drilling or other machine. When producing relief electrotypes, the mould may be divided along two diametrically opposite longitudinal lines to facilitate separation from the electrotype. To prevent the deposit being thicker at the ends than at the middle of the electrotype, the anode which is disposed at the centre of the mould may taper towards its ends. The Provisional Specification states also that the mould may be formed as a flat electrotype from a flat original, and be bent to cylindrical form, or that a flat lead mould may be employed to produce a flat electrotype which is afterwards bent to cylindrical forme and soldered, brazed, or welded at its meeting edges, and also that a cylindrical lead mould may be employed.
Patent GB-570357-A (GB)
Title: A process for the production of glues
IPC: C09J161/00
Filed: 1943-02-25
Abstract: A glue is made by stirring vetch and/or cockle meal into a paste with water and mixing the paste with a synthetic resin glue consisting of a condensation product of phenol, cresol or urea with formaldehyde. In an example, 3 parts of the meal with 1 part of synthetic resin glue are employed.ALSO:A glue is made by stirring vetch and/or cockle meal into a paste with water and mixing the paste with a synthetic resin glue consisting of a condensation product of phenol, cresol or urea with formaldehyde.  In an example, 3 parts of the meal with 1 part of synthetic resin glue are employed.
Patent GB-272314-A (GB)
Title: Improvements in two stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1926-03-27
Abstract: 272,314. Toth, C. J. March 27, 1926. No Patent granted (Sealing fee not paid). Two-stroke-cycle engines; driving- gear.-Two parallel cylinders e, f with oppositely moving pistons a, b have their combustion chambers connected by one or more passages k, closed by the piston a towards the end of the compression stroke. After the passage is closed fuel is injected into the combustion chamber g À above the piston a, the injection ceasing before the communication is re-opened. The cylinders are offset with respect to the crank shaft, the piston a being given a lead over the piston b; as a consequence the exhaust ports h open before the admission ports d and air enters the cylinders after the exhaust ports are closed due to this off-set. The communicating passages are opened more rapidly than they are closed; similarly with the airadmission ports. The upper part of the large diameter cylinder is used to supply the air charge; if desired the cross-head m may be in the form of a plunger working in the cylinder c', and also act as an air pump. One large-diameter cylinder may be used with two small-diameter cylinders, similarly situated with respect to the large-diameter cylinder and each provided with a fuel injection valve. The small-diameter cylinder f, Fig. 8, may be arranged under the other cylinder c, the piston b being connected to two cranks on a three-throw crank shaft by connecting rods z and piston rods s which pass through holes in bosses cast on the small cylinder. In another arrangement, the small-diameter cylinder or cylinders f. Fig. 11, is or are arranged above the other cylinder c; the piston or pistons a are attached to a yoke j driving on the cranks through outside piston and connecting rods. In a modification of this arrangement the smalldiameter cylinders may be arranged to one side of the other cylinder so that the small pistons drive direct through piston rods v, v<1>, Fig. 19, without the use of a yoke; a combustion chamber g common to the two small cylinders is used in this construction. Instead of using the largediameter piston and cylinder as the pre-compression pump the air may be supplied from an independently driven pump, or a pump plunger A, Fig. 24, may be attached to the two pistons in the upper cylinders f. In another modification, coaxial cylinders e, f, Fig. 21, are connected by a passage k controlled by the leading piston a, which also controls the exhaust ports. The lead is given to this piston by connecting it to a cross-head on the advance side of the crank shaft. The upper pistons a<1>, b<1> are connected to the cross-heads by the rods v. The pistons may be of unequal diameters and their strokes need not be the same.
Patent GB-194552-A (GB)
Title: Improvements in petrol or like squirts
IPC: F16N3/08
Filed: 1922-03-23
Abstract: 194,552. Elliot, G. March 23, 1922. Syringes. - In a petrol &c. squirt of the kind in which the piston is pressed out by a spring, coacting means are provided on the piston-rod and cylinder for holding the piston-rod inside the cylinder when the squirt is not in use. In one form, a thread 11 on the rod engages a thread 10 on the cylinder end. In another form, a pin-and-slot connection is provided. The finger grips 8 are screwed through the wall of the cylinder into a cap 7.