baber/WOPTO huggingface dataset:
Patent GB-536962-A (GB)
Title: Improvements relating to microtelephone handsets
IPC: H04M1/03
Filed: 1940-01-24
Abstract: 536,962. Micro-telephone handsets. GRAHAM & CO., Ltd., A., and RABBITT, L. W. Jan. 24, 1940, No. 1463. [Class 40 (iv)] A micro-telephone handset comprises a longitudinally channelled handle portion 1 integral with a transmitter housing 2 and a receiver housing 3, all open at the back and adapted to contain all the apparatus units of the handset and to be closed by one or more back cover plates. The single piece body is moulded or cast, for example in synthetic resin or like plastic material. The cover plates may be stamped from sheet metal As shown, three cover plates 12, 14, 16 are provided over packing material 13, 15, 17, the end plates 14, 16 overlapping the central plate 12. These plates are secured by screws to the hollow casing 1, 2,3. The handle contains a contact spring set 10 operable by a side finger button.
Patent GB-715021-A (GB)
Title: Improved apparatus for textile web printing
IPC: B41F22/00
Filed: 1951-01-19
Abstract: 715,021. Printing fabrics. VERDUIN, J. Jan. 19, 1951 [Jan. 27, 1950], No. 1540/51. Class 100 (2) Blankets; set-off preventing.-For printing on a textile web 14 by means of an impression cylinder 11 and printing cylinders 12, there is provided in the form of an endless web 13 a combined blanket and back grey, which during printing is passed through a washing-machine 25 and over and under heated driving drums 26, 27. The web 13 comprises an impervious base material such as synthetic rubber having embedded in it a plurality of layers of textile material. Bonded to both sides of the base material are additional layers of semi-absorbent textile material to carry excess ink. The latter material may be woven from threads of a super polyamide such as nylon or an acrylonitrile such as the material known under the Registered Trade Mark " Orlon," of the order of 210 denier, the warp consisting of 60 ends double and the filling 42 ends double, weighing approximately 6.4 oz/sq. yd. The threads forming the additional layers are embedded into the base to the extent of 10 per cent of the weave. Specification 715,107 is referred to.
Patent GB-161702-A (GB)
Title: Improved construction of portable lifting machines
IPC: B66F9/02
Filed: 1920-01-17
Abstract: 161,702. Collis, A. Jan. 17,1920. Winch-actuated hoists with guided platforms; catch-gear and like safety retaining mechanism.- In stacking-machines, means are provided for raising the platform at one or more speeds, for lowering the platform under the control of a friction brake, for arresting the descent of the platform if the. hoisting-rope breaks, and for cushioning the platform if it falls owing to careless operation. The platform 11 is connected to a frame. 9 having rollers 10 engaging grooves in the uprights 6. The: hoisting-rope 15 is secured to a lug 14 which is connected to the frame 9 by a spring 13. Links 16 connect the lug 14 to pivoted pointed arms 17, which normally are held out of contact with wooden strips.in the grooves in the uprights. If the rope breaks, the spring 13 will pull down the links 16, and the pointed arms 17 will be forced into the wooden strips, thus arresting the descent of the platform. The winding-drum 19 has means for frictionally engaging a worm-wheel 20, and can be engaged by an ajm 22 which is rocked by screw mechanism 24. During lowering, the pull of the rope 15 keeps the drum and worm-wheel in engagement. The worm shaft 27 can be driven directly by the handle 31, or through gearing by applying the handle to the end of a shaft 30. A bellmouthed air tube 33 secured to the platform and having a small hole in the closed top co-operates with a plunger secured to the base 1 and ensures the platform reaching the bottom slowly.
Patent GB-742592-A (GB)
Title: A mechanical horse
IPC: A63G19/20
Filed: 1953-01-20
Abstract: 742,592. Press-button retractive switches. BERRY, T. April 20, 1954 [Jan. 20, 1953], No. 1629/53. Class 38(5) [Also in Groups XV and XVIII] In a mechanical horse (see Group XV) a switch 46 has one contact carried on a pivoted lever 45 with a cam surface 44. The normally closed switch is opened by, a peg 43 on the lower end of a bar 26 engaging surface 44 when the bar 26 is depressed against the action of a spring 36.
Patent GB-1018193-A (GB)
Title: Closure apparatus for pressure chamber
IPC: F16J10/02
Filed: 1963-01-14
Abstract: 1,018,193. Sterilisation chambers. WILMOT CASTLE CO. Jan. 14,1963, [March 1, 1962], No. 1673/63. Heading A5G. An opening 22 in the front plate 20 of a vessel 10 is closed by a closure plate 28 which is part of a structure comprising the plate 28, a locking plate 30 and a spacer 26 which, when the vessel is used for sterilizing surgical instruments, constitutes a tray for the instruments. The relative sizes of the plates 28, 30 are such that the inside surface 72 of the plate 28 is less in area than the inside surface 66 of the plate 30. The vessel 10 has a steam inlet 50 and steam outlet 52, the former being greater in cross-section so that steam pressure builds up inside the vessel despite continued exhaust. When the opening 22 is closed by pushing the said structure inwards, the preponderance of the pressure force on the surface 62 over that on the surface 72 holds the plate 28 closed. To allow for escape of air as the structure is moved inwards, the space 64 beyond the plate 30 is vented to atmosphere. Holes 60 in the bottom of the tray prevent accumulation of condensation. Alternatively the venting conduit 68 may lead to a pressure control system 69, whereby suction may be applied to draw the locking plate 30 inwards or, to undo the closure, pressure may be applied to force it outwards. If suction is relied on to keep the closure locked, the plates 28, 30 may have the same surface area. The pressure or temperature in the vessel 10 may be automatically regulated by a device such as bellows 78 which, through contact switches, causes a steam valve 54 to open or close as required. The device may be used to close and seal a larger pressure container, within which it projects from the inlet, pressure in the container being communicated through passages corresponding to 46, 48 to hold the closure locked.
Patent GB-980767-A (GB)
Title: Improvements in or relating to handle assemblies for doors or the like
Inventor: HAYWARD FRANCIS VINCENT
IPC: E05B1/00
Filed: 1963-01-15
Abstract: 980,767. Handles. T. J. COOKE & SON Ltd. Jan. 7, 1964 [Jan. 15, 1963], No. 1712/63. Heading A4U. A handle 10 having a threaded blind bore 15 is secured to a door 13 by means of a headed bolt having a threaded shank 16 engaged in the blind bore 15 and a head 17 with a concave annular recess 19, the head 17 being received in a bore 20 in the door 13 and being retained therein by a dowel 21 passed through a bore 22 extending from the edge of the door and engaging the recess 19 in the bolt head. Two handles 10 may be arranged in backto-back relationship and each handle may be secured by two spaced apart bolts engaging corresponding blind bores 15. The handle 10 may be trianguar with a thickened door engaging portion 12 and a thinner hand hold portion 14.
Patent GB-997501-A (GB)
Title: Improvements in and relating to evaporators
IPC: B01D1/00
Filed: 1963-05-03
Abstract: 997,501. Multi-stage evaporators of the falling-film type. MACHINENFABRIK J. & H. W. VAN DER PLOEG N.V. May 3, 1963 [June 12, 1962], No. 17523/63. Heading BIB. In an evaporator comprising a plurality of tubular heaters wherein the liquid being evaporated flows in film-form down the inside surfaces of the tubes, the heaters being connected in series for the liquid, the rate of fall of the liquid-film in at least one of the heaters (other than the first) is increased by introducing into the top of the heater the vapour obtained by expansion of the liquid withdrawn from a preceding heater to the pressure prevailing in the first-mentioned heater. The apparatus shown comprises a three-stage evaporator in which milk flows through heaters 3, 14 and 6, successively. Milk at 185 ‹F. is pumped through conduit 2 to the top of heater 3 in which a temperature of 158 ‹F. prevails. Flash evaporation takes place in the top or the heater, and further evaporation takes place as the milk flows down the tubes in the form of a film. The mixture of milk and vapour is discharged into centrifugal separator 4. Part of the separated vapour is compressed in steam-jet compressor 7 and then used as heating-medium in heater 3. The remainder of the vapour removed from separator 4 is introduced, via conduit 5, as heating-medium into heater 6. The liquid withdrawn from separator 4 is pumped, together with the liquid accumulated at the bottom of heater 3, through conduit 10 into expansion vessel 11 where flash evaporation occurs, and the temperature of the milk decreases to 131 ‹F. The vapour is introduced through conduit 12 into the top of heater 6. The milk is lead from vessel 11 into the top of heater 14, which is operated at a temperature of 113 ‹F. The mixture of liquid and vapour discharged from heater 14 enters separator 15, from which the vapour passes to condenser 17. The milk withdrawn from separator 15 is pumped through conduit 19 into the top of heater 6. The conduit 19 includes a coil 20 which is heated to 158 ‹F. by the vapour in conduit 5. The temperature of the milk as it enters heater 6 is at a temperature of 131 ‹F. In the top of heater 6, the milk mixes with the vapour from expansion vessel 11, and is driven at high velocity down the internal surfaces of the tubes of the heater. A mixture of concentrated milk and vapour is discharged from the bottom of heater 6 into separator 21. The concentrated milk is withdrawn from the system via valve 23, but some of it may, if desired, be recirculated via valve 24 to heater 6. The vapour obtained in separator 21 is supplied as heating medium to heater 14. Part of the condensate of the heating-medium of heater 14 is vaporized in generator 26, and the vapour is passed through conduit 27 to expansion vessel 11. A four-stage evaporator, comprising two steam-jet compressors, is also described.
Patent GB-688167-A (GB)
Title: Apparatus for coupling a microphone to a hearing aid amplifier
IPC: H04R1/08
Filed: 1951-01-23
Abstract: 688,167. Two-part couplings. SONOTONE CORPORATION. Jan. 23, 1951 [Jan. 26, 1950], No. 1765/51. Class 38 (i). An external decorative microphone 30 for a deaf-aid is provided with a plug coupling having rigid sharply-pointed pins 51, 52 which pierce the garment 56 of the wearer and engage a socket structure 60 connected to the deaf-aid amplifier. The plug coupling may be provided with separate pins 51, 52, or, Fig. 5, with a concentric plug in which the outer conductor 51 is insulated by a sleeve 98 from the inner conductor 52 which has a pointed end 54. The pin 51 is riveted to the metal casing 73 of the microphone and the co-operating socket contact 61 is connected to the external lead 32 of a coaxial cable 31 through the socket casing. The other pin 52 is insulated from the casing 73, being connected to the transducer, and its co-operating contact 62 is insulated from the socket casing and is connected to the internal conductor of the cable 31, to the other end of which a plug 38, Fig. 10, is connected. The plug 38 fits into a socket 40 on the amplifier casing. A flexible arm 93 shorts the socket contacts 42, 43, so that a microphone in the amplifier casing can be inserted in the circuit instead. When the external microphone plug 38 is in the socket, the plug pins 36, 37 move the arm 93 to break the circuit to the internal microphone and complete that of the microphone 30. When no internal microphone is provided, the microphone 30 is directly plugged into the amplifier of which the socket 60 then has no shorting arm and the pins 51, 52 are biased so as to clamp the garment between the microphone and the amplifier casing, Fig. 6 (not shown). The microphone unit may be as described in Specification 680,151, [Group XXXIX].
Patent GB-1193231-A (GB)
Title: Process for the production of Polyurethane Resins
Inventor: NIEDERDELLMANN GEORG
IPC: C08G18/08
Filed: 1968-01-12
Abstract: 1,193,231. Polyurethanes. FARBENFABRIKEN BAYER A.G. 12 Jan., 1968 [12 Jan., 1967], No. 1787/68. Headings C3C and C3R. Polyurethanes are prepared by reacting polyhydroxyl compounds and polyisocyanates, the polyhydroxyl compounds having added to them 1 to 20% by weight of trioxane. The reaction mixture may contain cross-linking agents, blowing agents, catalysts and other conventional additives. The trioxane particularly serves to lower the viscosity of high viscosity polyhydroxyl compounds so that these become easier to work. Conventional polyethers, polyesters, aliphatic and aromatic polyisocyanates may be used. Water and halogenated hydrocarbons are suitably used as blowing agents and tertiary amines and organotin compounds may be used as catalysts. Emulsifiers, foam stabilizers and flame retardants may also be added.
Patent GB-197992-A (GB)
Title: Improvements in blank feeding & holding mechanisms for machines for tapping nipples and other articles
IPC: B23Q7/00
Filed: 1922-01-21
Abstract: 197,992. Thompson, W. P., (Torrington Co.). Jan. 21, 1922. Tapping. - In a blank-feeding and holding mechanism for tapping-machines in which the articles to be tapped are automatically fed one at a time to the working position by a horizontal slide, the articles are received in a notch formed between relatively movable members mounted on the slide. One of these members is displaceable horizontally and vertically to grip and release the articles. A tap connected to its spindle by a. universal joint is fed alternately in opposite directions by means of cams causing friction pulleys to rotate the spindle which is moved axially by screwed sleeves, one being keyed to the spindle. The reversing device is described in Specification 183,798. In the blank-feeding mechanism, which is duplicated at each end of the spindle, the blanks are received in hoppers and are supplied to shoots 47 by carriers reciprocated vertically through the hoppers by levers oscillated by pin and slot mechanism driven through worm gearing from separate pulleys. The blanks fall by gravity on a feeding slide 62, reciprocated by a bell-crank lever 64 oscillated by a spring and cam 69. A gripping dog 53 is attached to the slide by a pin 55 riding in a horizontal slot in the slide and is supported by a spring 54. When the slide is retracted the pin abuts against a stop 61, causing the dog to leave the slide against the action of a spring 57, and forming an opening into which a blank 40 falls. The extent of the feed is limited by an adjustable stop 68 which coacts with a standard 60. The forward motion of the slide brings the blanks in line with a holder composed of a stationary jaw 72, vertically adjustable by a screw 75, and a movable jaw 80, depressed by a lever 86 and a, yielding link 88 from a cam 96 and raised by a spring 100. The lower jaw is slotted to receive the dog 53 which is depressed by the upper jaw to release the blank.
Patent GB-563310-A (GB)
Title: Improvements in and relating to face plates or chucks adapted for use with lathes and like machine tools
IPC: B23B31/10
Filed: 1943-02-03
Abstract: 563,310. Chucks; GARLE, K. J. Feb. 3, 1943, No. 1821. [Class 83 (iii)] Chucks have a number of jaws movable in slideways in the body at least one of which is controlled by means projecting on each side of the body to permit opening and closing without stopping rotation. As applied to a two jaw chuck, one jaw 5 is radially adjustable and is split for clamping by a screw 6 after adjustment and the other jaw 7 is tapped to engage a screw 9 having a squared portion 10 and a second threaded portion 11 engaging a tapped portion 12 of the body. The threads 9 and 11 differ in pitch to give a differential action and the screw is rotated by a disc 14 having a square hole to engage the part 10 and projecting on each side of the chuck body through a slot therein for actuation in one direction or the other by pads 15 carried by a yoke 16 pivoted at 18 to a ring 19 loose on the chuck back plate. Lubrication is provided for at 20. In a modification, the screw may be attached to the jaw, the part 13 then being a nut. Both jaws may be actuated by a common screw provided with right and left handed threads and the part 10 may be provided with radially projecting arms for actuation by a spring trigger or the like.
Patent GB-704877-A (GB)
Title: Improvements relating to electrical indicating devices for surge diverters
Inventor: RYDER CLIFFORD
IPC: H02H3/04
Filed: 1951-01-24
Abstract: 704,877. Protective arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 16, 1952 [Jan. 24, 1951], No. 1845/51. Class 38 (4) Operation of a surge-diverter is indicated by the blowing of fuze which shunts a non-linear resistor connected in the discharge path. In order that the condition of the fuze may be readily seen, blowing may cause the position of an indicator flag to change; or the fuze may be enclosed in an insulating tube having a normally closed aperture, which is blown open upon rupture of the fuze. In the arrangement shown in Fig. 4, a battery of fuzes 7, which are successively brought into operation, shunt a non-linear resistor 2 in series with a diverter 1, a current limiting resistor 11 preventing excessive current from passing through the indicator circuit. Each fuze normally holds a spring-loaded contact arm 9 clear of a contact 10 and also maintains an indicator flag 8 in an upright position. On occurrence of a discharge the fuze nearest the resistor 2 blows, thereby allowing the associated flag to fall and releasing arm 9, which automatically connects the next fuze across resistor 2. A choke may be provided across resistor 2 to avoid blowing of all the fuzes on occurrence of a prolonged discharge. A switch, which may operate auto matically upon removal of a cover of a casing enclosing the indicators, may be provided for earthing the indicators when renewing the fuzes.
Patent GB-280743-A (GB)
Title: Improvements in or relating to the casting of printing plates
IPC: B41D3/02
Filed: 1927-01-21
Abstract: 280,743. Marks, E. C. R., (Wood Newspaper Machinery Corporation). Jan. 21, 1927. Stereotype, casting. - Stereotypes are cast in a mould adapted to be rotated at such a speed that the metal is forced by centrifugal action into the depressions of the matrix. the rotation being continued until the metal has solidified. As shown, the mould consists of a. hollow cylindrical core 15 secured to a member 18 rotatable in a support 10, and am outer casing 12 formed of two sections hinged to a projection 14 on the core. Each section 12 is adapted to receive one or more matrices 26 secured in the usual way. The separate matrices are spaced apart by ribs 25. The upper end of the core is closed by a conical cover 17, and cooling fluid is introduced into the core by means of a stationary pipe 31. The mould is closed at the top by a cover 28 provided with a funnel 29 over which is located the pouring-nozzle 30 of the melting-pot. The two parts of the outer casing are locked in closed position by hooks on one part engaging pins on the other, and the casing is cooled by the provision of a number of radiallyprojecting ribs. In use the mould is preferably covered by a guard to prevent the escape of molten metal should the mould become unlocked or damaged. In a modification, flat plates are cast against the sides of a polygonal core.
Patent GB-284283-A (GB)
Title: Synchronizing device for musical instruments or other apparatus
IPC: G10F5/00
Filed: 1928-01-20
Abstract: 284,283. Aubry, E., and Boreau, G. Jan. 27, 1927, [Convention date]. Synchronous movements.-Relates to means for synchronizing separate machines, such as automatic musical instruments, controlled by perforated rolls of paper. Each machine is driven by a separate motor and each is associated with an intermediate contact-device or relay controlled by a special group of perforations in the paper roll driven by that motor. One machine running at a standard speed controls another or a group of other machines, and the arrangement is such that when synchronism between a controlled machine and the controller is broken, an electric circuit is completed and brings into operation means for altering the speed of the controlled machine until synchronism is restored. The figures show an arrangement in which M is the motor driving the controlling machine, and m is the motor of a controlled machine, which tends to run at a slightly greater speed than the motor M. The machines are each provided with a moving roll P or p, alike having groups of staggered perforations a - - c, a<1> - - c<1> &c., arranged as shown in Fig. 1. 'These perforations pass over tracker-bars F, f and intermittently open pipes k, k<1> leading to chamber S or s, each of which is provided with a diaphragm-operated contact. The construction of the devices S is shown in Fig. 4. Each chamber has a diaphragm e carrying a contact e<3> which is connected to a terminal j<2> and coacts with a fixed contact i connected to a terminal i<2>. The part of the chamber above the diaphragm communicates through a pipe g with bellows or other suction apparatus , and the pipe k leads to the same. part of the chamber. Thus the contacts e<3>, i in any one of these devices are separated whenever the end of the pipe k pertaining thereto is closed by the roll P, and conversely, the contacts are closed when a perforation in the roll opens the pipe k. The devices s resemble the devices S in general construction, but are so modified that the contacts in any one of these are opened whenever the pipe k<1> pertaining thereto is opened by a perforation in the roll p. The controlled motor m drives through reducing gear a fly-wheel r which is adapted to be braked by the armature u of an electromagnet t, connected as shown in a battery circuit including the contacts of the devices S, s. When synchronism is established between the motors M, m the corresponding pipes in the sets k, k<1> are opened and closed at the same time by the special perforations in the rolls P, p. Consequently the circuit through the magnet t remains open. When, however, this action is disturbed, on account of the slightly greater speed of the motor m, the circuit is established and the brake u applied to the controlled motor until synchronism is restored.
Patent GB-796275-A (GB)
Title: Sealing means for sintering machines or like continuous machines equipped with movable containers
IPC: F27B21/06
Filed: 1957-01-21
Abstract: 796,275. Sintering machines. McKEE & CO., A. G. Jan. 21, 1957 [March 26, 1956], No. 2101/57. Class 82(1) [Also in Group XXX] In a continuous sintering machine, apparatus for providing a gas seal between movable pallets P and a windbox 5 over which the pallets move, comprises a seal slide member 6 on the windbox 5, a seal bar member S supported on a pallet P whereby it moves therewith and has a limited vertical movement relative thereto, the member S being vertically aligned with the member 6 and adapted to have sliding sealing engagement therewith as a pallet P moves over the windbox 5, and cam means B disposed in the path of travel of the member S at an elevation such that the member S, when a predetermined distance above the member 6, will engage said cam means and be moved downwardly toward said member 6. The cam means or seal bar pull-down device B, includes a cam member 14 having a camming face 23, disposed above the seal slide member 6, inclined as shown in Fig. 4, and engaging a portion of the member S as previously stated to move it downwardly. The cam member 14 is supported on a base plate 11, secured to a support 13, by guide-way members 15 and 16, secured thereto. A rectangular slot therebetween permits vertical movement of the cam member 14 which is urged downwardly by a pre-compressed spring 20, stop faces 24, 25, limiting downward movement, A pair of the seal slide members 6 are mounted on opposite sides of the windbox 5, and a pair of the cam means are supported respectively in the paths of travel of the pair of seal bar members S.