baber/WOPTO huggingface dataset:
Patent GB-1533616-A (GB)
Title: Photographic apparatus
IPC: G03B9/40
Filed: 1976-03-01
Abstract: 1533616 Camera POLAROID CORP 1 March 1976 [3 March 1975] 08015/76 Heading G2A A camera shutter has blades 216, 218 biased towards the open position by a spring 238, a latch 136 for holding the blades in the closed position before and after exposure, means 244 for closing the blades 216, 218 against the spring-bias and a sequencing device 140 Fig. 7b which rotates through a single 360 degree revolution during the course of an exposure cycle and during a first portion of its revolution releases the latch 136 before exposure and during a second portion reapplies the latch after exposure. As shown, the sequencing device comprises a cam profile 140 on a motor driven wheel (114), Figs. 1, 4 (not shown). Profile 140 is engaged by a member 120 which is integral with the latch 136 and with a film advancing edge 130. As the profile 140 rotates it (a) moves member 120 to the right into the position shown in Fig. 7b, thereby opening a switch S2 (to de-energize the motor and stop rotation of profile 140) and retracting latch 136 out of engagement with a walking beam 224 of the shutter. Spring 238 opens the blades and after a photo-electrically controlled period a solenoid 244 is switched on to close them. The motor then restarts to continue rotation of profile 140 which then (b) moves member 120 to the left whereby edge 130 moves the exposed film unit through processing rollers 50, 52 and latch 136 re-engages beam 224 to allow solenoid 244 to be de-energized. During rotation of the profile carrying wheel (114), a pin (180), Fig. 1 (not shown) thereon advances a film unit counter (164), Fig. 2 (not shown).
Patent GB-825095-A (GB)
Title: Connecting pin
IPC: B60D1/14
Filed: 1957-03-12
Abstract: 825,095. Stud and socket fastenings; cotters. THOMSON, T. F. March 12, 1957, No. 8084/57. Classes 44 and 89(2) A connecting unit comprises an elongated body member 30 having a laterally extending enlarged shoulder portion 31 at one end and a transversely extending bore 36 formed in the body member longitudinally spaced from the shoulder portion, the underside of the shoulder portion having an arcuate bearing surface 32, Fig. 4 (not shown), and a continuous flat side 34 formed both along the length of the body member and shoulder portion, and abutment pin 41 movably located in the bore, the pin having a length not greater than the thickess of the body member and a spring element 33 placed in a passage 37 formed internally of the body member and registering with the bore, the spring element operatively contacting the pin to resiliently hold the pin in a normal position whereby a portion 43 thereof extends beyond the outer periphery of the body member. One end of the torsion spring is secured in a notch 39 formed internally in the passage adjacent the flat side of the body member and the other lug is secured in a notch in the pins 41. The connecting unit can be withdrawn from the bore in the member 16 by pushing the pins against the pressure of the spring into the cavity. '
Patent GB-667508-A (GB)
Title: Improvements relating to portable hand tools and electric switches therefor
IPC: H01H13/08
Filed: 1950-03-31
Abstract: 667,508. Switches held set and freed mechanically. WOLF ELECTRIC TOOLS, Ltd., and GUBBINS, C. H. March 31, 1950. No. 8135/50. Class 38 (v). The trigger 25 of a portable hand tool is slidable between guide surfaces 28, 30 and has a projection 31 arranged, in the "on" position, to engage behind a shoulder 32 at the end of surface 28, so as to hold the switch closed, Fig. 5, the trigger being, for this purpose, canted by the throw-off spring 38. The switch is opened by upward pressure on part 25b of the trigger. The switch comprises a tumbler 21 pivoted at 23 and carrying contacts 22 arranged to bridge fixed contacts 15, when a spring-pressed ball 36 carried by the trigger moves to the right of the pivots 23.
Patent GB-797756-A (GB)
Title: Improvements in and relating to electrical impedance devices
Inventor: TURNER WILLIAM GEORGE
IPC: H01P1/12
Filed: 1955-03-21
Abstract: 797,756. Regulating switches. ADVANCE COMPONENTS, Ltd. March 21, 1956 [March 21, 1955], No. 8147/55. Class 38 (5). A switch for connecting one of an assembly of electrical impedance elements between two conductors comprises a control member rotation of which moves plug and socket connectors away from each other and a first impedance element, moves the elements to substitute a second for the first, and then moves the connectors towards each other and the second impedance element to complete the circuit. The assembly 2 of impedances 1 has projecting socket contacts 3 which co-operate with contacts 6, 7 on a fixed member 14 and a movable member 15. A shaft 8 fixed to the member 15 is slidable through the assembly 2 and member 14 and is fixed to a plate 22 slidable on guide rods 19, 20. The plate 22 and member 15 carry parts 23, 24 which co-operate with an eccentric 25 on an operating shaft 26. Rotation of the eccentric moves the member 15 and contact 7 to the right, together wih the assembly 2 which is moved by a bush (not shown) on the shaft 8. The contacts 3, 6 and 7 are thereby separated to disconnect the impedance 1 previously in circuit. During further rotation of shaft 26, an arm 11 thereon engages teeth in a sprocket disc 5 in the assembly 2 so as to rotate the latter through 60 degrees to place the next element 1 opposite contacts 6, 7. Continued movement of the eccentric moves the assembly 2 and member 15 to the left to engage contacts 3, 6, 7. The assembly 2 is located in its angular positions by a latch 13 which engages slots 12 in a disc 4 carried by the assembly, and by a spring detent 27 which engages in the spaces between adjacent elements 1. The shaft 26 carries a notched locating disc 30 co-operating with a ball 32. An indicator disc 33 is driven from shaft 26 by a Geneva-mechanism. According to the Provisional Specification, the shaft 26 carries an arm having gear teeth at its outer end cooperating with gear teeth on the disc 5.
Patent GB-550395-A (GB)
Title: Improved coin inlet mechanism for use on prepayment apparatus, more especially for electricity or gas
IPC: G07F15/04
Filed: 1941-06-30
Abstract: 550,395. Coin-freed mechanism for meters. LANDIS & GYR SOC: ANON. June 30, 1941. No. 8192. [Class 27] Coin inlet mechanism for prepayment meters for electricity &c. is arranged so that the insertion of the coin energizes a spring and releases the energy to pass the coin through and free the corresponding amount of the commodity paid for. The coin inserted through a slot 4 in the casing pushes a slide 3 back in a diametrical passage in a rotatable drum 2 fast with a shaft 15 journalled in the casing and in a cross member 1b, a rack 19 in the slide turning a pinion 17 loose on the shaft 15 and fast with a ratchet wheel 18 engaging a pawl 21 carried by a bevel wheel 22 free on the shaft 15 and gearing with a bevel wheel 23 loose on a cross shaft 26 and fast to a ratchet wheel 24 engaging a fixed spring pawl 25. An energy storing spring 27 is hooked into the wheel 23 and at the other end engages round the hub of a bevel wheel fast on the shaft 26 and engaging a bevel wheel fast on the shaft 15. Thus the inserted coin winds up the spring 27 at the same time positioning according to its size a slot on the slide 3 opposite a pin on a second slide 6 in the drum which is spring-pressed thus to bring one or both sets of pins 7 and 8 into position so that when a pin 36 on the slide 3 escapes past a stop 38 the drum is driven by the spring 27 to carry the pins 7, 8 to engage the pinion 11 on the quantity setting shaft, after which the coin falls into the receiving shoot and the drum returns to normal position with the pin 36 against the stop 38. In driving the drum the shaft 26 also by its cam 30 engages a roll 31 to retract a push rod 32 and close the supply contacts 35. In a modification the spring 27 is released from some of the friction of the moving parts by hooking the second end of the storing spring into a disc loose on the shaft 26 and pressed against the wheel 28 by the storing spring, the shaft 26 being journalled in a coaxial sleeve fast with the casing on which sleeve is journalled the pinion 23. In a simplified modification the storage spring 27 is disposed round the shaft 15, which is vertical in this form, and hooked into a ratchet wheel 43, Fig. 4, carrying the pawl engaging the ratchet wheel 18 and itself held by a fixed spring pawl 44 the other end of the spring being hooked into a disc 45 fast to the shaft 15. In a further modification the energy storing spring is hooked to two pinions loose on a fixed shaft and gearing with pinions corresponding to 22 and 29, Fig. 2, the fixed shaft being parallel to shaft 15. In this way less power of the storing spring is lost by friction in the coin inlet mechanism.
Patent GB-725718-A (GB)
Title: Improvements in or relating to shoe supporting apparatus for a liquid storage tank
Inventor: MOYER FREDERICK D
IPC: B65D88/46
Filed: 1953-03-25
Abstract: 725,718. Floating roofs for liquid storage tanks. CHICAGO BRIDGE & IRON CO. March 25, 1953, No. 8224/53. Class 69 (1). A shoe-supporting device for a floating roof of a liquid storage tank comprises a supporting bar pivotally attached to the roof and extending downwards between the roof and the tank wall to adjacent the shoe of the floating roof, a shoe bar pivotally attached to the shoe at one end and connected to the roof at the other end by a joint which permits vertical movement but prevents horizontal movement with respect to the roof, a pivotal connection between the shoe bar and the supporting bar intermediate their ends, and a spring urging the roof and the shoe away from each other. In the form shown, Figs. 1 and 2, the supporting bar 25 consists of a pair of members 26, 27 pivoted to lugs 28 on the floating roof 16 and extending downwardly to adjacent the shoe 18. A single shoe bar 35 is pivoted at its upper end to a lug 37 on the shoe and is connected at its lower end to the roof by a bar and slot device 38, 39. The supporting and shoe bars are pivotally connected by a pin 43 on which is wound a coil spring 50 which urges the shoe and roof away from each other. In other forms described, the coil spring is replaced by (a) a helical spring extending from a lug on the roof to a lug on the lower end of the shoe bar 35, or (b) a " safetypin " type of spring, one leg of which is secured to the roof and the other leg of which is secured to a mounting bar attached to the top of the shoe bar 35.
Patent GB-236271-A (GB)
Title: Improvements in or relating to hinge arrangements for spectacle frames
IPC: G02C5/22
Filed: 1924-04-01
Abstract: 236,271. Wingate, G. H. April 1, 1924. Barrel hinges.- Spectacle frames, more especially of tortoise-shell or like, are provided with hinges constructed so that the adjacent surfaces of the sides b and frame a are approximately tangential to the same side of the butt portions instead of the opposite sides, thus enabling the sides to fold down close to the frames. The plate d pinned to the frame a has a slightly raised portion d<2> on which are secured the two side butts of the hinge, the middle butt being formed on the plate attached to the side. This plate terminates in a vertical portion e<3> covering the end of the side b, and is formed with a quadrant e<2> covering the butts. In the modification shown in Fig. 3 each outer butt of the hinge is secured to a small plate at the end of the frame, secured by pins to the frame a, and the other hinge flap overhangs the end of the spectacle side to which it is secured by flaps h as shown.
Patent GB-409879-A (GB)
Title: Improvements relating to vee type knife sharpeners
IPC: B24D15/08
Filed: 1933-03-18
Abstract: 409,879. Sharpening knives. EGGINTON, C., 99, Sandygate Road, Sheffield. March 18, 1933, No. 8241. [Class 60.] A V-slot sharpener for knives consists of two circular sectioned steels 8 arranged to cross with their peripheries in contact and held in position by a holder having two parts 9, 10 clamped by a screw 11. The holder may have a tang to receive a handle, or may have a flange 9<a> for attachment to a table &c. In a modification adapted for attachment to the prongs 12 of a carving fork, the part 9 has tapering' projections 9<b> which engage between the prongs, a screw 13 and nut 14 serving to hold the sharpener in position, This form of sharpener also may be secured to a base provided with a handle and having recesses to receive the projections 9<b>. The steels may have thereon spiral or scroll-form knurlings, the spirals being of opposite hand on the two steels, The steels may be adjusted by releasing the screw 11. A slotted guide member for the knife may be provided.
Patent GB-914953-A (GB)
Title: Improvements in or relating to cleansing machines for plates and other dishes
Inventor: SULLINGS ARTHUR GOULD
IPC: A47L15/39
Filed: 1958-03-14
Abstract: 914,953. Dish-washing apparatus. COMMODORE ENGINEERING Ltd. June 12, 1959 [March 14, 1958], No. 8273/58. Class 138 (1). A machine for cleaning plates (and which may also include cup-cleaning devices) comprises a housing 1 having an inlet 2 through which the plates are passed in succession to be supported between at least two pairs of oppositely rotating brushes 5, 6 by rollers 30, 31 and 43, 44, and sprayed with cleaning liquid supplied through perforated pipes 26, 27 and a spray head 28, the plates being rotated by the rollers 31, 43 which are driven by a belt and gearing from the electric motor 13 which rotates the brushes 5, 6. To transfer a plate from the rollers 30, 31 to the rollers 43, 44 a handle 42 is depressed to operate through a linkage 39, 38, 37 a pivoted arm 35 which lifts the plate forwardly towards the rollers 43, 44. At the same time an ejector arm 41 is operated by the handle 42 to move the plate on the rollers 43, 44 through an outlet 4 into a wire tray or other receptacle (not shown). Alternatively the ejector arms 35, 41 may be operated by a cam driven by the motor 13. Also, if desired, the pairs of brushes 5, 6 may be arranged in rows for cleaning several plates simultaneously. The machine illustrated includes cup-cleaning devices. Ends of the shafts carrying the rollers 31, 43 are provided with brushes 60, 62 (not shown) for cleaning the outside of a cup whilst the interior is cleaned by a brush 61 (not shown) on a third driven shaft. After cleaning by the brushes 60, 61, 62 the cup is placed upside down on guides 48, 49 to be moved by a pusher 46, carried by an endless chain 45, between brushes 50, 51, which clean the outside of the cup whilst cleaning liquid is sprayed into its interior from a perforated pipe 54.
Patent GB-907284-A (GB)
Title: Process for making minute capsules containing solid particles
IPC: B41M5/165
Filed: 1961-03-08
Abstract: Minute capsules having a wall of water-insoluble polymer material enclosing and retaining a particle of solid material are produced by forming a solution of a first polymer material intended to form the wall of the capsule, dispersing in said solution minute particles of the solid material, adding with agitation a second polymer material incompatible with the first thereby inducing the first polymer to separate out and deposit on each solid particle individually to form an encapsulating liquid wall thereon, and finally hardening the wall material.  In an example, ammonium nitrate (to be used for example in explosives or fertilisers) is suspended in a solution of ethyl cellulose in 80/20 toluene/ethanol, a liquid polybutadiene is added to precipitate a strongly alcoholic solution of ethyl cellulose around the particles of ammonium nitrate, and toluene diisocyanate is then added to react with the ethanol and form a hard shell around each particle.  The process may also be applied to potassium dichromate, metal hydrides, and stannous fluoride. Other filmforming polymers which may be used are cellulose nitrate and polymethyl methacrylate; plasticizers such as dimethyl, dibutyl or dioctyl phthalates, castor oil and nitrated glycols may be included.ALSO:Ammonium nitrate to be used in fertilizers is suspended in a solution of ethyl cellulose in 80/20 toluene/ethanol, a liquid polybutadiene is added to precipitate a strongly alcoholic solution of ethyl cellulose around the particles of ammonium nitrate, and toluene diisocyanate is then added to react with the ethanol and from a hard shell around each particle.  Other film-forming polymers which may be used are cellulose nitrate and polymethyl methacrylate; plasticizers such as dimethyl, dibutyl or dioctyl phthalates, castor oil and nitrated glycols may be included.ALSO:Minute capsules having a wall of water-insoluble polymer material enclosing and retaining a particle of solid material are produced by forming a solution of a first polymer material intended to form the wall of the capsule, dispersing in said solution minute particles of the solid material, adding with agitation a second polymer material incompatible with the first, thereby inducing the first polymer to separate out and deposit on each solid particle individually to form an encapsulating liquid wall thereon, and finally hardening the wall material.  Other film-forming polymers which may be used are cellulose nitrate and polymethyl methacrylate; plasticizers such as dimethyl, dibutyl or dioctyl phthalates, castor oil and nitrated glycols may be included.
Patent GB-254375-A (GB)
Title: A process for bringing about physical and chemical changes in liquid or pasty dielectric carbon compounds by means of ionised gases
IPC: C11C3/12
Filed: 1925-03-30
Abstract: 254,375. Oelwerke Stern-Sonneborn Akt.-Ges., and Vogel, H. March 30, 1925. Fats and fatty oils; fatty acids; mineral and tar oils.- Molecular changes are produced in liquid or pasty dielectric carbon compounds bv treatment, in admixture with gases, with large alternating currents of high voltage or high-frequency and of high ionizing power in a condenser having stationary electrodes provided with an additional dielectric. In an example, oil is treated with an alternating current of a discharge density of about 0.3 watts per sq. cm. in a condenser K the plates of which are covered with an additional dielectric D formed, for example, of oiled paper or enamel. The gas stream is passed in through fine distributing nozzles E so as to divide the liquid finely. An energetic frothing of the oil is obtained, together with the desired physicochemical change. The ionized gas, after passing through the fine liquid froth. is forced by a pump P into a chamber J from which it is returned to the nozzles E. The process is also applied to the hydrogenation of unsaturated hydrocarbons, the hardening of fats and fatty acids by hydrogenation, the oxidation of liquid carbon compounds, such as methylated hydrocarbons, by treatment in the presence of oxygen, and to the treatment of mineral and other nocfatty oils in the presence of a non-reactive gas, for example, to cause polymerization and increase of viscosity.
Patent GB-643413-A (GB)
Title: Improvements in or relating to adhesive-treated crepe paper and methods of making the same
IPC: C09J7/21
Filed: 1948-03-24
Abstract: Crepe paper is calendered and coated with a pressure-sensitive adhesive comprising rubber 100, zinc oxide 50, anti-oxidant 1, wood rosin 50, and lanolin 12 parts, in 417 of solvent, the parts being by weight.  Specifications 425,159, [Group VIII], and 624,929 are referred to.
Patent GB-796047-A (GB)
Title: Radiation shielding
IPC: G21F1/10
Filed: 1946-03-20
Abstract: A nuclear reactor is provided with access ducts closed with plugs comprising alternate layers of material that absorbs neutrons and material that absorbs neutrons and gamma radiation, such as paraffin wax layers alternating with layers of paraffin wax and steel shot.
Patent GB-987025-A (GB)
Title: Improvements in or relating to earth and rock drilling apparatus
IPC: E21B3/02
Filed: 1962-03-07
Abstract: 987,025. Boring earth &c. J. BINAUT. March 7, 1962 [April 11, 1961], No. 8717/62. Heading E1F. Drilling apparatus comprises a drill head formed by rotary tools, and means for exerting on the tools forces acting parallel to the centre line of the head to cause a deviation of the drilling direction. The head drawn comprises tools 1 mounted on rods 5 rotated by motors 9, the rods rotating within guides 6 which abut against the wall of the hole being drilled. Each motor and rod is moved longitudinally of a frame 8 by a feed motor 10, and the frames are moved longitudinally relative to one another by a motor 13 and a threaded spindle 14. In a modification the head comprises four tools rotated by four or two motors.
Patent GB-534073-A (GB)
Title: Improved internal-combustion engine valve apparatus
IPC: F01L7/04
Filed: 1939-09-01
Abstract: 534,073. Valves. DAVISON-DOUGLAS CORPORATION. Sept. 1, 1939, No. 8747/40. Convention date, Sept. 16, 1938. Divided out of 532,756. [Class 7 (vi)] A rotary valve 30 with a circumferential slit 32a, from which to its lower free edge extends a wide slot forming the port, has the internal surface of the flexible flap thus formed peened as indicated at 36 so as to cause it to assume an arcuate outline of greater radius than that which it had originally.
Patent GB-430725-A (GB)
Title: Improvements in plate straightening machines
IPC: B21D1/02
Filed: 1935-03-20
Abstract: 430,725. Straightening. LE TALL, F. W., 2, Norfolk Street, Strand, London.- (Rust, W. ; Hagenburg, Schaumburg-Lippe, Germany) March 20, 1935, No. 8749. [Class 83 (iv)] In a plate straightening machine with staggered straightening rolls 1 supported by backing rolls 2, small diameter spacing rolls 3 are fitted between adjacent rolls to prevent bending of the rolls 1. The rolls 3 are supported in holders 4 secured to the machine frame.
Patent GB-526553-A (GB)
Title: Improvements in or relating to the dressing of textile materials
IPC: F02B1/00
Filed: 1939-03-20
Abstract: 526,553. Lubricants. BRITISH CELANESE, Ltd. March 20, 1939, No. 8820. Convention date, March 25, 1938. [Class 91] [Also in Group IV] Lubricants for cellulose derivative textile materials have a basis of a sulphonated oil made by sulphonating a vegetable oil with sulphuric acid, dissolving the sulphonated oil in at least its own volume of an organic solvent, preferably ethyl alcohol, neutralizing the excess sulphuric acid, separating the sulphonated oil and removing the solvent. For use as a textile lubricant, the sulphonated cil may be mixed with a mineral or vegetable oil and with a small proportion of an oxidized mineral oil or sperm oil. Small quantities of sulphonated or sulphated fatty alcohols, e.g., the sulphation products of oleyl, stearyl, lauryl or palmityl alcohols may also be added, together with a small amount of a fatty acid, e.g., oleic acid, as a blending agent.