baber/WOPTO huggingface dataset:
Patent GB-408319-A (GB)
Title: Improvements in or for keyboard operated telegraph apparatus
IPC: H04L17/06
Filed: 1932-10-07
Abstract: 408,319. Type - printing telegraphy. CREED & CO., Ltd., and GRIFFITH, R. G., Telegraph House, Croydon. Oct. 7, 1932, No. 27938. [Class 40 (iii).] In a keyboard telegraph apparatus for the transmission of impulses or the perforation of tape in a system in which the character and case-shift signals have the same number of permutation elements, some of the characters having identical code combinations, but belonging to different case groups, are allotted to separate key levers which when depressed effect the automatic insertion of the appropriate case-shift or re-shift signal, whilst other characters in different case groups, but having identical code combinations, are allotted in pairs to common key-levers and the appropriate case shift signal is inserted as the result of manual actuation of a shift lever. The transmission or perforation of the shift or re-shift signal combination is effected on the release of a cam 9 for half a revolution, as described in Specification 388,785. On depression of a single-character key lever, the bar 2, controlling the cam 9, is moved to the left or right in accordance with the movement of a bar 1, directly actuated by the key. When the bar 1 is moved to the left, a pin 5 engages the forward end of a slot 7 and positively moves the bar 2 to the left. When the bar 1 is moved to the right the pin 5 moves to the right in the slot 7, increasing the tension in a spring 8 attached to a pin 4 sliding in a slot 6, thereby moving the bar 2 to the right. For the manual insertion of the case-shift signal, the depression of the lever 11 engages firstly a cam surface 10 moving the bar 2 to the left, and subsequently a cam surface 12 moving the bar 1 to the right against the tension of the spring 8. Since the actuation of any double-character key lever normally moves the bar 1 to the right, the locking of the bar in the right hand position by the case shift lever 11 removes the load from the subsequent actuation of any of the double-character key levers. The shift-lever 11 may be operated and locked by the depression of the shift-lock lever 13. The locking action is released by further depression of the shift lever 11, a pin 19 engaging with a cam surface 20 on a pivoted member 17 to release the lock-shift lever 13 which returns under spring action and through a pin 16 allows the shift-lever 11 to return to its normal position when released.
Patent GB-1366430-A (GB)
Title: Gas turbine fuel flow metering control system
IPC: F02C7/228
Filed: 1972-06-15
Abstract: 1366430 Gas turbine engine fuel systems GENERAL ELECTRIC CO 15 June 1972 [16 July 1971] 27979/72 Heading F1G [Also in Division G3] Fuel flow to a rotary fuel divider of a gas turbine engine is regulated according to the error between a desired value and an actual value of flow as measured by the speed of the divider. In the embodiment shown, an actual fuel flow signal is obtained, using toothed wheels 7, magnetic reluctance sensors 8 and a frequency to voltage converter 27, from the speed of shaft 6 in rotary fuel divider 4, which feeds fuel from tank 9 via pumps 10, 11 and fuel lines 3 to combustion chambers 2 of gas turbine engine 1. A desired fuel flow signal is obtained from controller 19 e.g. as described in UK Specification 1254995 according to compressor speed and pressure, a flame detector, load turbine speed and exhaust temperature. Any fuel flow error from comparator 18 e.g. an operational amplifier controls a servo valve 16, 17 in a by-pass line 15 to maintain the fuel flow at its desired value. Wheels 7, sensors 8 and converter 27 may be replaced by a tachogenerator. In alternative embodiments Figs. 2, 3 (not shown) the comparator 18 may control the fuel flow using, respectively a variable stroke pump or a throttle valve.
Patent GB-158975-A (GB)
Title: Improvements in devices for exposing material for sale or show in shop windows and the like
IPC: A47F11/00
Filed: 1919-11-12
Abstract: 158,975. Frank, M. Nov. 12, 1919. Stands.-A window display device, comprising at platform 6 having a central partition 7 and adapted to be swung round for the purpose of displaying goods on the front of the partition while goods are being rearranged at the back thereof, is mounted on castors 6' so as to be removable from the window.
Patent GB-871428-A (GB)
Title: Improvements in or relating to refractory materials
Inventor: WYLDE JOHN HENRY
IPC: C04B35/66
Filed: 1956-09-13
Abstract: A castable refractory mix is prepared by mixing together an aggregate of high refractoriness e.g. fused alumina, magnesia, mullite, sillimanite, or raw or calcined kyanite, a bonding agent consisting of a calcium aluminate hydraulic cement containing not less than 95% by weight of CaO and Al2O3, a foaming agent and water, and working the mixture to form a foamed castable mass.  The cement may form 10 to 25% by weight of the total dry ingredients.  The foaming agent may be incorporated into the aggregate-cement mix as a separately produced stable foam or foaming may be produced by agitating the total mix.  In an example fused alumina passing a 100 B.S. sieve is mixed with 15% of its weight of a cement having the composition Al2O3 : 70-72%, CaO : 25-29%, SiO2 and Fe2O3 each less than 1%, and a stable foam is produced from a 4% aqueous solution containing an alkyl naphthalene sulphonate and a foam stabilizer. The mix is poured into a mould, cured for 24 hours, airdried for 24 hours and fired to 1500 DEG C. for 4 hours.
Patent GB-233372-A (GB)
Title: Improvements in or relating to piles and pile-driving
IPC: E02D7/28
Filed: 1924-01-30
Abstract: 233,372. Rotinoff, A. G. Jan. 30, 1924. Bore-hole apparatus.-In apparatus for forming a hole in which a pile can be erected comprising a shell or casing with an internal screw thread and adapted to be driven be means of a too screwed into the shell the dimensions of shell and tool are such as tc leave a radial space between them except where the threads en. gage, and the lower surfaces of the engaging threads are preferably normal, or nearly so, to the length of the pile. The tool 11 is preferably hollow and constructed so that its upper end acts as a guide for a monkey 12 which strikes an anvil 12a preferably located at the centre of gravity of the whole mass. The tool is formed on its exterior surface with a screw thread 13 of any shape and preferably of small helical angle, its vertical thickness being considerably less than the pitch. A shell with a small exterior not grooved internally may also be used. The shell may be provided with a longitudinal key constituted by the longitudinal flanges 24, Fig. 1 of the semicylindrical sections of a built-up shell, the flanges being secured together by channel section clips 25. The tool may be used without a shell. Reference has been directed by the Comptroller to Specifications 228,485 and 229,234, [both in Class 68 (ii), Subaqueous buildings &c.].
Patent GB-1006473-A (GB)
Title: Calender rolls
IPC: B21B13/02
Filed: 1963-07-17
Abstract: 1,006,473. Paper making. FARREL CORPORATION. July 17,1963 [Oct. 23, 1962], No. 28304/63. Heading D2A. [Also in Division F2] A crowned calender roller having its profile determined primarily from the general equation for the deflection of a symmetrical beam mounted on two supports, is modified in shape to compensate for changes in the effective crown either when the roller is one of a pair of co-operating rollers on crossed axis or when the roller is, in use, subjected to external bending stresses. As shown in Fig. 6, the surface 31 of a calender roller 29 is of substantially the same profile 30 as that determined from the general equation for the deflection of a symmetrical beam on two supports, but is slightly reduced at both side of the mid-point of the roller. When used as one of a pair of rollers to roll a strip of relatively thin material, e.g. paper, with the rollers on crossed axis as described in Specification 839,611 [Group VIII), the modified crown 31 provides a uniform nip pressure at all points along the lengths of the rollers and produces a rolled sheet of constant thickness across its width. As shown in Fig. 12, a roller 51 has a crowned profile 52 determined from the general equation for the deflection of a symmetrical beam, as before, but is slightly enlarged at 53, 54 on both sides of its mid-point. When in use, the roller 51 is subjected to bending stresses at its two ends. The change in shape occasioned by the bending varies the crown profile, and uniform nip pressure, &c. is provided. Formulae for calculating the modifications to the primary profiles are given, together with tables showing the proportional shapes of the roller crowns.
Patent GB-994085-A (GB)
Title: Improvements in holders for ultrasonic transducers
Inventor: WELLS PETER NEIL TEMPLE
IPC: A61F11/00
Filed: 1962-07-24
Abstract: 994,085. Ultrasonic treatment. UNITED BRISTOL HOSPITALS. June 24, 1963 [July 24, 1962], No. 28409/62. Heading A5K. A mounting for an ultrasonic transducer, for use in ultrasonic therapy, comprises a hollow holder 14 having an inwardly directed flange 16 at its base. The transducer 10 is held against this flange by resilient means, such as a flat ring 20, and this is located by a sleeve 18 which may be either pressed or screwed into the holder 14. To assist in accurately locating the transducer, so that its outer face is flush with the base of the instrument, the inner face of the flange 16 is made conical, to mate with the chamfered edge 12 of the transducer 10.
Patent GB-485556-A (GB)
Title: Improvements in and relating to valves for controlling the flow of fluids of all kinds
IPC: F16K1/08
Filed: 1936-10-19
Abstract: 485,556. Valves. SEGIMON, J. Oct. 19, 1936, No. 28438. [Class 135] In piston valves, the valve member comprises a central stem 4, Fig. 10, an obturating member 8, Fig. 14, loose on the stem, and a packing-member 15 of compressible or semiplastic material which forms a complete ring above the member 8, passes axially through the slots 11 in the said member and rests upon the base 6 of the stem 4, contacting at its edges with the sides of tho extension 28 on the member 8. A pin 22 on the stem engages a slot 32 in the end of a non-rotary screw 16 which is fed down by rotation of the nut 23 to bear upon a washer 18 engaging the upper face of the packing 15, so as to raise and lower the valve. Sufficient expansion of the packing to form an effective seal is effected by screwing down a nut 20 on the stem 4 upon the screw 16. The valve chamber is cut away at 27 below the outlet port and the extension 28 is similarly cut away to allow free escape of fluid when the valve is closing. For low-pressure valves, the extension 28 may be omitted, in which case the lower part of the packing-member 15 completely surrounds the stem 4. Where chemical fluids are used, protective jackets of suitable materials may be provided for the valve parts.
Patent GB-306978-A (GB)
Title: Improvements in, and relating to, machines for filling bottles, vessels and the like
IPC: B67C3/26
Filed: 1927-10-27
Abstract: 306,978. Nielsen, H. V. Oct. 27, 1927. Bottling. - Relates to nozzles for filling bottles of the type which distribute the liquid on the inner surface of the bottle and in which the air escapes through an adjacent tube. According to the invention a nozzle with a self - centreing conical head has one or more orifices g for discharging liquid and one or more orifices for the escaping air which communicate directly with the atmosphere. A spring n keeps the nozzle in contact with the bottle c. The head of the nozzle is slidably arranged relative to the shank against the action of the spring n, and automatically covers and uncovers ports leading to the orifices g. A closely fitting gauze jacket m may be provided on the nozzle, or the nozzle itself may be pressed out of wire gauze. Specification 301,363 is referred to.
Patent GB-894113-A (GB)
Title: Mould for use in making blocks or slabs for paving and the like
IPC: B28B7/02
Filed: 1959-08-21
Abstract: 894,113. Adjustable moulds. BALL, A. G., and BALL, J. Aug. 19, 1960 [Aug. 21, 1959], No. 28682/59. Class 87(2). An open mould for moulding paving slabs or blocks comprises side walls 1, 1<SP>1</SP> and an end wall 2<SP>1</SP> formed integrally from a strip of mild steel, and an end wall 2 which may be adjustably positioned with respect to the side walls 1,1<SP>1</SP> and secured thereto by clips 3, furnished with screws 4 and positioned over tongues 2b and the respective side walls. A partition 6 is similarly secured to the side walls. In the embodiment of Fig. 4, semi-circular strips 7 may be used as partitions or may be assembled in contact to provide a lining. The frame 1, 1<SP>1</SP>, 2<SP>1</SP> is deformable and the mould may be tapered by securing thereto an end wall narrower than the wall 2<SP>1</SP>, Fig. 5 (not shown).
Patent GB-671696-A (GB)
Title: Improvements in or relating to brick making machinery
Inventor: BURT JOHN HARRY
IPC: B28B5/02
Filed: 1949-11-12
Abstract: 671,696. Hoppers. DUNNS ENGINEERING CO., Ltd. Nov. 12, 1949. No. 28772/49. Class 78 (i). [Also in Group V] The hopper 1 of a brick-making machine of the kind in which moulds travel on an endless belt beneath a hopper, e.g. as described in Specification 423,473, [Group V], has a gate 4 which is raised and lowered by rollers or projections mounted on the mould-carrying conveyer, to adjust the contour of the material deposited in the moulds. The rollers (see Fig. 3, not shown) are mounted on the link spindles of the conveyer track and engage rollers 17 connected through an adjustable linkage to the gate. The gate is spring-loaded in an upward direction. The hopper may be provided with an agitator such as that described in Specification 671,697.
Patent GB-1391409-A (GB)
Title: Wrench
IPC: B25B13/10
Filed: 1973-06-18
Abstract: 1391409 Wrenches K ONO 18 June 1973 [19 June 1972 5 Sept 1972] 28826/73 Heading B3N A wrench has a plurality of curved members 2 pivotally connected to each other, a lever 6 pivotally connected by a pivot 7 to one end of the curved members, a clamping member 8 pivotally connected to the other end of the curved members and means for removably engaging said clamping member with said lever. This means is slots 11 and pin 10. Teeth 1 may be of synthetic resin. The embodiment of Fig. 3, has tightening plates 13 to allow the wrench to operate on nuts or bolts located in a recess.
Patent GB-951430-A (GB)
Title: Improvements in adhesive cement compositions
IPC: C04B28/14
Filed: 1960-08-19
Abstract: An adhesive cement composition, for mixing with water prior to use, comprises a dry mixture of 1 to 10 parts by weight of Portland cement and 1 part by weight of a proteinaceous adhesive, e.g. casein or alkali soya protein (i.e. the alkali soluble fraction of the protein from soya bean meal).  The mixture may also contain a water soluble cellulose derivative, e.g. methyl cellulose or ethyl hydroxy ethyl cellulose; asbestos, e.g. in the form of asbestos floats or powder; a filler, e.g. whiting or silica sand; plaster, e.g. calcined gypsum or plaster of Paris.  In the Provisional Specification the compositions are not restricted to specific proportions of Portland cement and proteinaceous adhesive.
Patent GB-280199-A (GB)
Title: Method of and apparatus for making or laying planked excavation work, coffer dams, retaining walls and the like
IPC: E02D17/04
Filed: 1927-10-29
Abstract: 280,199. Deniau, M. Nov. 3, 1926, [Convention date]. Excavating.-In excavating galleries, shafts, &c., or making coffer darns, retaining walls, weirs, &c. in ground which has to be supported by planking or sheathing, the spaces for the insertion of sheathing members may be made by lateral movement of a shield-like member 13, Fig. 1, with upper and lower cutting edges between which tools may be placed, and a tail-member 15 within which telescopic pistons 16 operate to advance the member 13; the pistons 16 are connected at 17 to the members 13, and, after each advance of the latter, are collapsed, as by use of a compressed air ejector, to permit insertion of a sheathing member 19. The pistons 16 may be replaced by mechanical &c. means. In using the device, a heading is first formed, or a space excavated to receive the apparatus, or, after removal of tools, pistons 16, &c., the device may be driven longitudinally into the ground as by compressed air hammers. The Specification as open to inspection under Sect. 91 (3) (a) states also that the sheathing may consist of wood or concrete or cement-filled hollow members and may be inserted by driving a pile 1, Fig. 1 (Cancelled), into the ground, as by a compressed air hammer, the pile being then withdrawn and a smaller sheathing member 2 inserted in the hole. The pile 1 may be tapered or longitudinally divided to facilitate removal. In softer ground, a compound member comprising a box 5, Fig. 8 (Cancelled), and an inner pointed member 6, is driven into the ground, the member 6 removed, the sheathing member inserted into the box 5, and the box 5 then removed, the sheathing member remaining in position. During driving, the box 5 and member 6 may be held together by a screw 8, Fig. 12 (Cancelled), controlled by a rod 9 provided with a thread engaging the member 6. The box 5 may have a depending hollow part 10 to receive the rod 9, cables &c. controlling the member 6, or air or water pipes used to facilitate excavating. In place of the compound member, a box 5 with a shoe formed of pivoted jaws 11, Fig. 14 (Cancelled), may be driven into the ground and then partially withdrawn to allow the gates to open; a sheathing member is then inserted in the box 5 and the latter removed. The sheathing members may overlap or iron insertions 22, Fig. 21 (Cancelled), may be provided where tight joints are desired; mortar may be filled into the space between successive spaces of sheathing. Pending the construction of a lining, the sheathing is supported by flat bar iron or I-beams. When the holes are made by apparatus substantially larger than the sheathing members, filling-pieces f<1>, f<2>, Fig. 39 (Cancelled), may be inserted with the latter. Successive spans of sheathing may contact as shown in Fig. 39 (Cancelled). This subjectmatter does not appear in the Specification as accepted.
Patent GB-209394-A (GB)
Title: Bias thread fabric for the manufacture of pneumatic tyres
IPC: B60C9/00
Filed: 1923-11-16
Abstract: 209,394. Wolber, M. A., (Assignee of Nivet, P.). Jan. 8, 1923, [Convention date]. Jackets and covers.-Fabric for use in singletube or other forms of pneumatic tyres comprises bias thread in which the parts a<2>-a, a<1>-a<3> adjacent the edges are more inclined in relation to the length of the strip than the central parts a-a<1>. In manufacture, a strip of adhering threads arranged at the angle #, Fig. 1, is folded over a two-part press b and the edge-portions of the strip clamped by plates c and screws d. The angle of the central portion of the strip is then changed (as shown at a, Fig. 1) by relative movement of the press-parts. The facing edges of these parts are formed with inclined steps b<1> so that, in this movement, the centre portion of the strip is also tensioned. Two such partiallyformed strips are then superposed with the threads crossed, the presses are removed, and the edge portions folded into contact to make the composite strip.
Patent GB-1280112-A (GB)
Title: Vibratory evacuator
Inventor: ANSLEY CHARLES HUDSON
IPC: B65G65/44
Filed: 1970-06-15
Abstract: 1280112 Vibrators for discharging hoppers C H ANSLEY 15 June 1970 [17 June 1969] 28964/70 Heading B8S The bottom 12, Fig. 1, of a hopper 10 is vibrated orbitally and also tilted by excentrics 18, 19 on a motor shaft 40 so that material is discharged from outlets 20. Fig. 2 shows an embodiment in which the whole hopper is vibrated by excentrics 18, 19. The bottom 31 slopes towards outlet 20. Fig. 3 (not shown), shows an arrangement similar to Fig. 1 in which the bottom of the hopper is conical.
Patent GB-298985-A (GB)
Title: Improvements in actions for typewriting machines
IPC: B41J1/08
Filed: 1928-10-09
Abstract: 298,985. Royal Typewriter Co., Inc., (Assignees of Myers, L. C.). Oct. 18, 1927, [Convention date]. R e l a y type - bar actions; case - shift mechanism. - In a sliding type-bar machine, each type-bar is provided with a number of groups of types and is associated with a group of key-levers equal in number to the number of types in a group, each key-lever controlling power-operated means for moving the type-bar for impression, and one or more of the key-levers controlling also means for connecting a movable support for the type-bar to the poweroperated means. In the action shown in the Figure, the type-bar 1, provided with two pairs a, band c, d of types, is mounted on a rocking support 2 and is controlled by either of a pair of key-levers 41, 45. The support is formed with guide-lugs 4 and is provided with a guideplate 6 having a guide-channel 7. The support is guided by a comb 57 and is formed with an arm 61 for engaging stop-pads 59, 60. The typebar is connected by a link 12 to a rock-arm 15 connected by a link 23 to a rock-arm 25. The rock-arm 25 engages lugs 30, 32 on bell-cranks 27, 28 connected by links 36, 39 to members 37, 40 adapted to be coupled to a driving-shaft 50 on operation of the key-levers 45, 41 respectively. An arm 51 on the bell-crank 27 has a pin engaging a slot in a link 52 connected to the support, a spring 54 being arranged between the pin and support. The members 15, 25, 27, 28 are mounted on a bracket 17 which can be adjusted by means of a screw 20. When the key-lever 41 is depressed, the member 40 is coupled to the driving-shaft and impression is effected from the type c or a as determined by the position of the platen A, the support 2 remaining at rest. Resilient stops 55, 56 engage the type-bar and the arm 15 immediately before impression. When the key-lever 45 is depressed, the member 37 is coupled to the driving-shaft, the support is rocked, and the impression is effected from the type d or b as determined by the position of the platen. Resilient stops 63, 64 are provided for the arms 25 and key-levers. The bell-cranks 27, 28, arm 25, and key-levers are provided with returning-springs 33, 34, 43, 47. The links 36, 39 may be directly connected to the key-levers for manual operation. When the type-lever is provided with more than two types in a group, the additional key-levers are associated with the bell-crank 27 and link 52, and with a variableshift stop for the support.