baber/WOPTO huggingface dataset:
Patent GB-100944-A (GB)
Title: Improvement in Apparatus for Lining Tubes.
Inventor: BURLINGHAM WILLIAM
IPC: B21C37/15
Filed: 1916-06-30
Abstract: 100,944. Burlingham, W. July 19, 1915, [Convention date]. Tube expanders.-A malleable metal lining is secured to a pipe by hammering at right-angles to the axis of the pipe. Hammers 22, having flexible shanks 21 detachably connected to a tubular member 12 by nuts 29, 30, are expanded by the conical point of a piston 7 reciprocated by fluid pressure. In the example shown, steam or air, admitted through passages 16, 18, acts continuously in the cavity 4, tending to return the piston. In the position shown, air &c. entering ports 20 drives the piston forward till the ports 20 pass the end of the cylinder and the pressure is exhausted between the heads 22. A pneumatic tool having one or more distributing-valves may be employed to operate the heads 22. Specification 8306/15, [Class 99 (ii), Pipes &c.] is referred to.
Patent GB-1154667-A (GB)
Title: Tube Tapering Chuck.
Inventor: KENNEDY CLIFFORD F
IPC: B21C37/18
Filed: 1968-02-26
Abstract: 1,154,667. Rolling tubes. NORTH AMERICAN ROCKWELL CORP. 26 Feb., 1968 [10 March, 1967], No. 9262/68. Heading B3M. A tube tapering chuck 20 is provided with jaws 24 supporting profiled rollers 10 at an angle to the axis of a tube 27 being tapered. The chuck is rotatably but rigidly carried on a traversible carriage 16, one end 28 of the tube being fixed and the other end 27 being subjected to a constant terminal force. Alternatively, the tube can be rotatably pulled through a stationary chuck. To impart a desired taper to the tube the rollers are adjusted radially in response to movement of a follower 32 along a template 30, the radial adjustment being caused by axial motion of a sleeve 48 surrounding the tube. Such axial movement is transmitted by pivoted levers (Fig. 5, not shown) or by a slotted wedge member (Fig. 7, not shown) to the jaws. Each roller is of tapered or hour-glass shape and is preferably inclined to the tube axis by between 35 and 55 degrees. The roller imparts a polished finish to the tube and can be formed from graphitic molybdenum steel or, in a cryogenic environment, by tungsten carbide. Resistance heating of the tube may be employed if an increased ductility in the (e.g. titanium) tube is required. For applying a constant tension to the tube an hydraulically operated piston 110, Fig. 9, is coupled to the tube. The pressure supplied to the opposite sides of the piston is controlled by a solenoid-operated valve 128, 129, in response to signals from a strain gauge S.G. indicating a change in the applied tension. The valve operates when a bridge network is unbalanced, and controls the output from a pair of gear pumps 144, 145.
Patent GB-235149-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F3/08
Filed: 1925-04-07
Abstract: 235,149. Roszak, C. June 5, 1924, [Convention date]. Plate apparatus. -A heat-exchanger comprises plates 3 supported by anglepieces 4, two of which only are shown in Fig. 1, in slots in the two parts 5, 6. These pieces 4 support, in any one of the cells thus formed, distance-pieces, two on opposite edges being channel-shaped as 8<2> and two ladder-like as 11. The distance-pieces are arranged to form through-ways at right-angles in adjacent cells. The plates are kept in position by an outside framework a.nd spring-pressed end-plates.
Patent GB-649995-A (GB)
Title: Electric saw-tooth wave generators
IPC: H03K4/32
Filed: 1948-04-02
Abstract: 649,995. Saw-tooth generating circuits. STANDARD TELEPHONES & CABLES, Ltd. April 2, 1948, No. 9306. Convention date, July 2, 1947. [Class 40 (vi)] A saw-tooth generator comprises a blocking oscillator 1 supplying to an output valve 2 a D.C. bias voltage to produce a large anode current in the output valve and short pulses which periodically interrupt the anode current, a relaxation circuit also being provided which is arranged to cause the voltage across the load of the output valve to change progressively during the periods between the pulses. In the circuit shown, the relaxation circuit adds a rising portion to the otherwise steady voltage across the load in order to compensate for non- linearity due to the resistance of the output transformer 16 and the deflection coils 11. The relaxation circuit may be constituted by the decoupling circuit comprising a capacitor 6 which is charged through a resistor 5 and discharged through the blocking oscillator. Alternatively, it may comprise a capacitor 14 which is charged through a resistor 15 and discharged by a valve 7, the output voltage being amplified by a second part of valve 7 and applied to the load. A damping diode 9 is provided to linearise the sweep.
Patent GB-839077-A (GB)
Title: Improvements in or relating to caps for writing instruments
IPC: B43K23/12
Filed: 1957-12-31
Abstract: 839,077. Spring clips. RIBAS, M. P. Dec. 31, 1957, No. 9358/59. Divided out of 839,075. Class 44 [Also in Group XV] A cap 29 for a pen 20 comprises a shell 80 provided with a clip 99 suitably bent from laminated resilient flat wire the superposed ends of which extend through an opening 98 in the shell 80 and are fixed to a member 107 by a screw 109. The shell 80 has a sleeve 85 secured therein by two small rivets 88, Fig. 3, which have hollow stems, in conjunction with which passages 90 in the sleeve 85 form air vents. Disposed between the sleeve 85 and the member 107 is a spring 110 adapted to press the member 107 against a push-button 105 which projects through a hole 94 in the shell 80. When the push-button is depressed the clip pivots about the opening 98 to permit insertion between it and the shell 80 of, for example, a pocket edge. The pen 20 is provided with two pressed members 30 in diametrically-opposed positions to engage the inner surface of the cap 29 for retaining the latter to cover the nib when the pen is not being used. In a modification the spring 110 is omitted and the member 107 and the push-button 105 are replaced by a member to which the clip is fixed and which is fitted in the end of the shell 80. Specification 839,076 also is referred to.
Patent GB-694640-A (GB)
Title: Improvements relating to glazing bars
IPC: E04D3/08
Filed: 1950-04-17
Abstract: 694,640. Glazing. SHARP, A. July 17, 1951 [April 17, 1950], No. 9405/50. Class 20(iii) Glazing means comprise a bar having an upstanding central web a with a bulbous head o, and base flanges b for supporting the glass d, with weather channels between the web and the flanges, the channels being formed with undercut recesses f under which the outwardly turned feet k of a saddle shaped capping strip h engage. The strip is formed withlateral wings m engaging the upper surface of the glass; these wings may be integral with the strip e.g. when made of extruded aluminium alloy or bronze, or they may be separate from'but welded to the strip, e.g. when made of sheet metal. The bulbous head of the glazing bar expands the limbs of the capping strip so that the feet spring under the shoulders , # as the strip is forced down.
Patent GB-766250-A (GB)
Title: Improvements in or relating to curd mixers
IPC: A01J25/06
Filed: 1955-03-31
Abstract: 766,250. Mixing machines. CROUCHER & CROWDER ENGINEERING CO., Ltd. March 31, 1955 [April 9, 1954], No. 9413/55. Class 86 A curd mixer has two axially-aligned drums on opposite sides of driving means, each drum 1 being provided with stirring means which projects radially and also is extended in the direction of the length of the drum. The stirring means may be forked paddles 2, as shown, or may be outwardly-flared paddles fitting at their inner ends in sockets projecting radially from the drum. The paddles 2 are preferably formed from stainless steel tube to provide sockets for wooden' pegs 2d.
Patent GB-1535857-A (GB)
Title: Sheep cradle
IPC: A61D3/00
Filed: 1976-03-09
Abstract: 1535857 Sheep race and cradle assembly D E PAYNE 9 March 1976 [21 March 1975 17 July 1975] 09440/76 Heading AIM A sheep cradle comprises a U-shaped clamping member 21 connected by arms 26, 27 to a tube 25 rotatable about a side edge of the cradle, rotation of the tube by a handle 40 causing the member to contact a sheep at a stifle joint to maintain it secure, the member being pivoted by a sleeve 30, to one of a pair of U-shaped retaining members 29, one on each side of the cradle, with the members 29 being adjustable in height. A ratchet bar 36 is pivoted via an arm 34 with tube 25 and cooperates with a plate 37 on the cradle to retain the tube in a set position, lifting of a handle 35 releasing the bar. A latch bar 42 is pivoted to a cradle side edge 15 for movement between a position in which it supports the cradle to a position in which it releases the cradle to hinge downwardly. A chain 46 and spring 47 extend between the cradle and race or side edge and respective limit the hinging of the cradle and counterbalance its weight.
Patent GB-1386932-A (GB)
Title: Gas separating apparatus
IPC: B01D53/22
Filed: 1973-02-27
Abstract: 1386932 Gas diffusion TOKYO SHIBAURA ELECTRIC CO Ltd 27 Feb 1973 [29 Feb 1972] 9462/73 Heading B1L Two or more gases in a mixture are separated by diffusion from an enclosure bounded by a first and second membrane which have different permeabilities for at least two of the components of the mixture. The membranes may be in the form of plates, filament tubes or may be two coaxial tubes. The separated gases enhanced in concentration of one component may be treated in a cascade system.
Patent GB-376278-A (GB)
Title: Improvements in and relating to viscose casting machines
IPC: B29C71/00
Filed: 1931-03-28
Abstract: <PICT:0376278/IV/1> <PICT:0376278/IV/2> A machine for obtaining cellulose sheet material comprises a hopper with an adjustable slot from which viscose is delivered to the surface of a rotating drum dipping into a circulating coagulating liquid of constant temperature and composition. Temperature-controlled enclosed washing and treating chambers divided into sections are provided.  A temperature and humidity controlled drying chamber is also provided. Speed-controlled rollers situated in each section feed the film, continuously with its production, through the apparatus.  The rollers may be driven independently by electric motors, the speed of each being adjusted through a friction clutch or variable speed gear to allow for the different expansions or contractions of the film at each stage of the treatment.  Stretching or sagging of the film between the rollers is avoided.  In any of the liquid treatments or in the drying, the temperature may be adjusted so that it reaches a maximum in the middle section of the group devoted to a particular treatment.  A section containing varnish may be inserted near the middle of the group devoted to drying.  As shown in the drawings, viscose solution from a hopper 1 is deposited on a roller 2 dipping into circulating coagulating liquid maintained at constant composition and temperature in a vessel 3.  The film passes continuously through a series of similar compartments 4 each of which is provided with an upper and a lower series of rollers 5 around which the film passes in zig-zag fashion.  The first five compartments contain acid solutions surrounding the lower set of rollers, the next five contain desulphurizing baths, each of these groups of five being totally enclosed and provided with a collecting space 7 and outlet 8 for the gases produced in the treatment.  The film passes from these to a number of washing compartments and then to a group of drying compartments, a compartment containing a coating material such as a resinous solution or a cellulose ester solution, and finally through another group of drying compartments.  The covers of the compartments 4 are provided with counter-balanced hinged parts 9 which can be raised by levers 10 for inspection purposes. Specification 368,886 is referred to.
Patent GB-848270-A (GB)
Title: Improvements in or relating to the production of aluminium-containing synthetic resins
Inventor: SCHLENKER DR FELIX
IPC: C08G79/08
Filed: 1958-03-25
Abstract: Aluminium-containing resins are prepared by reacting (i) an aluminium alcoholate stabilised with a compound exhibiting keto-enol tautomerism, the molecular ratio of alcoholate to stabiliser being 1 : 1-2,5, with (ii) an unsubstituted mono- or poly-nuclear dihydric phenol or an alkyl-substituted derivative thereof, the molecular ratio of (i) to (ii) being 1 : 0,5-2, and by freeing the reaction product of volatile components by distillation.  The reaction is preferably carried out in solution of toluene at the boiling point of the mixture, and the distillation may be conducted under reduced pressure.  Preferred constituents specified are (i) Al butylate or isopropylate stabilised with ethyl aceto acetate, acetyl acetone, formyl acetone or diethyl malonate, and (ii) resorcinol, hydroquinone, catechol, bis-(4-hydroxyphenyl)2:2-propane, -methane, or -1 : 1-cyclochexane, and bis-(o-hydroxy-p-tert-butyl-phenyl)-2 : 2-propane.  The resins are soluble in, or compatible with, nitro-cellulose, drying oils, alkyd resins, epoxy resins, plasticised benzene-hydrocarbon soluble phenol-formaldehyde resins, benzene hydrocarbons, butanol, acetone, butyl acetate, ethylene glycol monoethyl ether.  Uses.  In printing colours : as antioxidants. Reference has been directed by the Comptroller to Specification 718,283.ALSO:In Ex(2) 204 parts of Al is opropylate an stabilized by being boiled with 150 parts of acetyl acetone for 1 hour; the reaction product is dissolved in 54 parts of aoluere.  Reference has been directed by the Comptroller to Specification 718,283.
Patent GB-558750-A (GB)
Title: Improvements in or relating to the manufacture of oxidation products of perchlorethylene
IPC: C07D303/48
Filed: 1942-07-10
Abstract: 558,750. Oxidation of perchlorethylene. RUSHMER, A., SMITH, W. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 10, 1942, No. 9597. [Class 2 (iii)] The photochemical oxidation of perchlorethylene with oxygen is effected in the presence of a strong non-volatile mineral acid. Suitable acids are sulphuric acid, oleums and phosphoric acid. The trichloracetyl chloride produced may be purified as described in Specification 546,561. Any oxide in the product may be converted to the acid chloride as described in Specification 534,732 by continued heating or by means of a metal chloride catalyst such as aluminium chloride, but if a secondary or tertiary amine is used for this purpose the mineral acid should be neutralized first. In an example a lead-lined vessel is employed which is internally illuminated, oleum being used as catalyst.
Patent GB-1535674-A (GB)
Title: Machine tools
IPC: B23B39/16
Filed: 1977-03-08
Abstract: 1535674 Machines with exchangeable toolheads UNIMA MASCHINENBAU GmbH 8 March 1977 [11 March 1976] 09605/77 Headings B3B and B3C A machine tool comprises a plurality of tool heads 12, 13 releasably mounted on a rotatable carrier 7 which is indexable to position any tool head in a working position wherein its one or more tool spindles are connected to spindle drive means 10, 11 in arm 9 and the head is coupled to the arm and disconnected from the carrier. The precise indexed position is determined by means of a crank arm 19 on a drive shaft 18 in the drive 15-17 for carrier 7, the roller 20 on the arm being engaged by a recess in a cylinder actuated slide plate 23, Figs. 3 and 4. Locking of each head to the carrier 7 is by means of spring-loaded pin 34 engaging in a recess 38 in shaft 36 of the head, Fig. 2, the pin being releasable by downwardly actuated cam 40 engaging cam recess 39 in the pin. Coupling of the head to feed piston 47, 48 in arm 9 is by means of lugs 57, 58 which are engaged by fluid pressure actuated recessed pistons 59 and coupling of the head to the rotary drive spindle 46 is by means of clutch "disc" 56, Figs. 5, 6, 7. Each head 12, 13 can be removed from the machine with the aid of exchange arrangement 75 having a horizontally shiftable, manually operable bar 76 and a bush 77 for receiving bolt 37. The operation of the machine, e.g. speed and feed of shaft 46 and supply of coolant, can be controlled by switch and cam mechanism 66, 69, switch carrier 73 being swivellable out of the position shown in Fig. 2 around pin 70 after unlocking device 71. Other control details include sensors, e.g. microswitches 27, 28, Fig. 3, sensors 43, 52, 53 and 54, Fig. 2, and sensors 61 and 62, Fig. 7, for sensing the operation of carrier 7, cam 40 (pin 39) piston 48, 49 and piston 59 respectively.
Patent GB-1255508-A (GB)
Title: Column shore bracket
Inventor: STRICKLAND JAMES KENNETH
IPC: E04G17/16
Filed: 1969-02-24
Abstract: 1,255,508. Formwork support bracket. J. K. STRICKLAND. 24 Feb., 1969 [29 Feb., 1968], No. 9680/69. Heading E1S. A bracket for supporting beams, which in turn support floor formwork, is fixed to a column forming part of the final structure, and includes a bearing shoe 20 rotatably mounted in the top of a threaded member 16 which is vertically adjustable relative to the body 14 of the bracket, and a second loadbearing portion comprising a roller 60 which is mounted at a level intermediate the extreme upper and lower levels at which the shoe 20 can be positioned. The roller 60 allows lateral movement of the formwork to be achieved after lowering of the shoe 20 and hence the formwork.
Patent GB-329444-A (GB)
Title: Improvements in and relating to fastening devices suitable for securing stair carpets and for other purposes
IPC: A47G27/06
Filed: 1929-03-26
Abstract: 329,444. Le Heup, T. W. March 26, 1929. No Patent granted (Sealing fee not paid). Stair-carpet fasteners. - A clip for securing stair carpet &c. consists of a jaw a secured in the angle of the stairs &c. and having a pair of overhanging lugs c &c. to pivotallv and detachably receive trunnions h of a movable jaw f which is pressed upon the carpet by a screw or by a cam pivoted to the fixed or movable jaw. Reference has been directed by the Comptroller to Specification 309,736.
Patent GB-700521-A (GB)
Title: Improvements in and relating to twin lens photographic cameras
IPC: G03B13/20
Filed: 1951-04-26
Abstract: 700,521. Photographic twin-lens cameras. BOLSEY, J. April 26, 1951 [June 8, 1950], No. 9802/51. Class 98(1) In a photographic camera having an objective lens and a view-finder lens movable together towards and away from the camera body, the objective lens is carried by a cylindrical lens barrel slidable in a cylindrical housing in the camera body, the view-finder lens is supported entirely by the lens barrel, and movement of the lenses is effected by means operating on the lens barrel. As shown, Fig. 2, the camera has a main body part 10 closed by a removable rear cover 12 and surmounted by an upper casing 11. The body 10 has a cylindrical compartment 13 in which slides a lens barrel 14 carrying the lens 15 and shutter mechanism 16. The film spools (not shown) are housed in the body 10 on opposite sides of compartment 13. A short home base range-finder, housed in the upper. casing 11, comprises levers 38, 43, Fig. 4, pivoted at 39, 44. respectively and urged towards each other by a spring 47 so that arms 41, 42 of the levers are urged into contact, and another arm 45 of lever 38 is urged against a pin 46 of the lens mount. The movable mirror 52 of the range-finder is carried by lever 43, and the fixed mirror 48 is mounted on the camera body. The range-finder beams enter by apertures 49, 51 and an eye aperture 50 is provided. The lens mount fits within a sleeve 58 rotatable in compartment 13 by means of a focusing lever 63, and having helical slots. The pin 46 and a second pin 54 formed on the lens mount pass through the helical slots into guiding slots formed.in the camera body parallel to the optical axis. Thus movement of lever 63 causes the lens to move axially for focusing, without rotation, this movement being coupled to the range-finder. A plate 69 is attached to the lens mount to move with it in front of the camera, and carries the finder lens 70 sliding in a recess 65. Light from this lens is reflected by a mirror 68 on to the flat ground surface of a planoconvex lens 71 mounted in a rectangular upward extension of casing 11. Flaps 74, 78 with side extensions hinged at 76, 79 to the extension can be folded over the lens 71, or they can be erected to form a hood. A lens 72, which is hinged to be folded against flap 74, can be used to view the image formed on the ground face of lens 71. Movement of the lens also rocks a yoke member 83, pivoted at 84, so that the upper edge 90 thereof cuts off a part of the view-finder field as the camera is focused on near objects. Specification 666,405 is referred to.
Patent GB-274185-A (GB)
Title: Improvements in or relating to sextants
IPC: G01C1/08
Filed: 1926-04-14
Abstract: 274,185. Abraham, R. M. April 14, 1926. Sextants.-The graduated scale is arranged to be seen and read by an observer while an observation is actually being taken, the sextant being provided with two eyepieces side by side through one of which an observation is made while in the other the image of the scale is seen. The instrument comprises a casing A having a boss A<4> supporting the index mirror D, a projecting plate A<5> carrying the telescope R, and an extension A<1> carrying the horizon mirror B. The mirror D is secured to a disc E fixed to a sleeve F extending through the boss A<4> and carrying at its inner end the graduated glass annulus G. The outer part of the sleeve F is normally rotatable within a sleeve H but can be secured thereto by a clamp H<1>, Fig. 4. For coarse setting the disc E is turned independently of the sleeve H by means of the head D<2>. and for fine setting the clamp H<1> is tightened and the sleeve H rotated by the device shown in Fig. 5 comprising a pin L mounted within a rotatable screw L<1> and bearing on a projection H<2> from the sleeve H. The optical system shown produces juxtaposed images in an eyepiece Q of diametrically opposite graduations on the annulus G. The system is carried by a plate M mounted on a rotatable pivot pin M<1> coaxial with the annulus G, and comprises two Porro prisms N directing rays from opposite ends of a diameter of the annulus into a right-angled prism N<1> from which the light passes through an object glass carried by an adjustably-mounted tube 0 and is directed by a prism P into the eyepiece Q. The scale is illuminated by external light directed by prisms A<8>
Patent GB-126196-A (GB)
Title: Improvements in and relating to Explosives.
Inventor: TISELL CASTEN IVAN
IPC: C06B25/00
Filed: 1918-06-14
Abstract: 126,196. Tisell, C. I., and Villaume, E. J. June 14, 1918. Explosives.-Nitrocymenes are mixed with oxygen-yielding substances to which may be added combustible substances, and substances such as ferro silicon for raising the temperature of explosion, but not nitrocellulose. One example contains nitrocymene 15-20 parts, ammonium perchlorate or nitrate 70-80 parts, ferrosilicon 5-10 parts, and wood meal 1-5 parts by weight.