baber/WOPTO huggingface dataset:
Patent GB-755125-A (GB)
Title: Domestic lock
IPC: E05B65/00
Filed: 1954-02-26
Abstract: 755,125. Latches. STOAKES, S. J. Dec. 24, 1954 [Feb. 26, 1954], No. 5693/54. ','Class 44. Relates to a door lock adapted to be fitted to or incorporated in door catches of the kind comprising a latch or bolt operated by a knob or handle and rotary spindle. According to the invention the lock comprises a clutch for constraining the spindle against rotation and means for engaging the clutch from one side of the door, in which the clutch is arranged to be engaged by axial sliding movement of the rotary spindle, and in which the sliding movement is provided for by engaging the spindle with the knob in such a way as to cause rotation of the spindle when the knob is moved from a resting position in one direction, but axial sliding movement of the spindle when the knob is rotated from this position in the other direction. As shown, in which a handle 4 for a latch 1 is secured to the latch spindle 3 by a pin 7 which engages a slot 8 on the shank 5 of the handle, upward rotary movement of the handle moves the handle and spindle transversely of the door to effect movement of a spring-loaded handle 12 on the other side of the door into engagement with the base of a rose 9, in which position, a pin 13 by which the handle 12 is attached to the spindle, is moved into a side limb of a U-shaped slot 14, thereby locking the spindle' against rotation. The shank of the handle 12 carries a marking (not shown) which disappears from view when this handle is pulled inwardly as described, an Engaged " marking then being visible through the slot 14. The arrangement may be such that the shank of the handle 12 does not become pressed hard against the rose 9 in which case the latch may be unlocked by inward movement of handle 12 against its spring to release handle 4 and allow the latter to return to its normal horizontal position. Otherwise pin 13 may be withdrawn to permit turning of handle 4. The slot 8 may be sleeved over or replaced by a channel which does not extend through to the outer surface of the shank 5.
Patent GB-644160-A (GB)
Title: Improvements in lathe and like tool holders
IPC: B23B27/16
Filed: 1948-02-26
Abstract: 644,160. Tool-holders. BECKER, C. Feb. 26, 1948, No. 5731. Convention date, March 10, 1947. [Class 83 (iii)] A lathe or like tool-holder comprises a longitudinal passage 8 for the reception of the tool 9, a wedge 11 slidable in a groove which opens out of the passage and has an inclined surface to act upon the wedge, and mechanism mounted at the rear of the holder for operating the wedge so that the tool is clamped from adjacent its cutting edge to its opposite extremity. The operating mechanism may consist of a nut 3 screwed on to a cylindrical part 2 of the holder and having coned portions 6, 7 which co-operate with projections 20, 21 on a rod 10 integral with the wedge 11; alternatively, the rod 10 may be moved by a cam or an eccentric or helicoidal incline. The wedge moves in either a dovetail or semi-circular groove in the holder, and has a shoulder 15 to prevent lateral displacement of the tool. If desired, the wedge may have both upper and lower inclined faces, and it may be formed separately from, but coupled to, the rod 10.
Patent GB-1502365-A (GB)
Title: Process for recovering glycine and beta-alanine
Filed: 1975-02-11
Abstract: 1502365 Recovering glycine and #-alanine W R GRACE & CO 11 Feb 1975 [14 Feb 1974 24 Oct 1974] 5771/75 Heading C2C Glycine or #-alanine are recovered from a starting aqueous solution containing the amino acid and sodium sulphate by (a) evaporating water from the solution at a temperature high enough to preclude precipitation of the aminoacid whereby sodium sulphate is caused to precipitate, (b) separating precipitated sodium sulphate from the resulting mother liquor, (c) cooling the mother liquor to cause the aminoacid to precipitate and (d) recovering precipitated amino-acid from the resulting depleted mother liquor. The depleted mother liquor of step (d) may be similarly treated by steps (a)- (d) with or without admixture with further starting aqueous solutions. The amino-acid obtained in step (d) can be recrystallized from an aqueous solution and the mother liquor can be admixed with starting solution for a subsequent run. The starting solution is preferably that obtained by hydrolysing glycinonitrile or #-aminopropionitrile with aqueous sodium hydroxide solution followed by treatment with sulphuric acid.
Patent GB-987563-A (GB)
Title: Improvements relating to rope-making machinery
Inventor: HILL MOORE
IPC: D04C3/00
Filed: 1961-02-16
Abstract: 987,563. Braiding-machines. JAMES MACKIE & SONS Ltd. Feb. 7, 1962 [Feb. 16, 1961], No. 5795/61. Heading D1C. In a rope braiding machine comprising a number of carrier discs 7 driving bobbin carriers 2 around horizontal closed loops, one end of each bobbin carrier has a pinion 21 rotatable about an axis fixed in relation to the carrier, the pinion meshing with a stationary horizontal rack 22 which controls the angular position of the pinion axis as it travels around the loop. Each bobbin carrier is disposed so that the greatest dimension of its bobbin is disposed parallel to the loop axis. The carrier moving mechanism may be that described in Specification 987, 562.
Patent GB-602248-A (GB)
Title: Improvements in or relating to apparatus for comminuting seaweed and other products
IPC: D01B9/00
Filed: 1945-03-08
Abstract: 6 0 2,2 4 8. Vegetable-cutting machines. WILLIAMS, J. F. March 8, 1945, No. 5797. [Class 5(i)] A feeding device for a comminuting machine for vegetable matter such as seaweed comprises a moving support constituted by a roller 22 and a feed belt 132, and a swinging frame 50 carrying driven rollers 43, 44, 45 which rest upon, and provide a converging passage for the material, the rollers and feed belt being driven by gears from a cutter shaft 17. The frame 50 is pivoted about the main axle 17 on which is mounted the cutting means which comprises a series of discs 18 on which are mounted blades 19 which co-operate with a fixed blade 20. The blades 19 are staggered with reference to each other, and are shorter than the fixed blades 20. The machine may be portable and the drive shaft may be extended to operate a belt elevator to deposit the shredded matter into heaps. The feed belt 132 may be carried round the roller 22 and a feed belt added round rollers 43, 44, 45. All the rollers may be circumferentially grooved to assist the gripping of the matter. Specification 581,258 is referred to.
Patent GB-229502-A (GB)
Title: Drop side cots
IPC: A47D7/02
Filed: 1924-03-07
Abstract: 229,502. Waddington, J. March 7, 1924. Dropside cots convertible into seats.-The drop side of a cot convertible into a settee has at its bottom corners means which engage rods or slideways on or in the cot ends to guide the side during the whole of its movements. As shown, the guides are bent rods f on which slide rings o with stems n having a free rotational and limited lateral freedom in brackets l on the cot side. A dovetail slot q, at each end of the upper rail on the moving side, engages a ball-headed stud a, and a laterally sliding locking-piece u prevents accidental disengagement. Both sides of the cot may be slidable or one side may be secured by dovetail joints on both its top and bottom rails. By making the slots on the lower rail deeper than those on the upper rail, they may be engaged first to facilitate assembly-
Patent GB-491203-A (GB)
Title: Improvements in or relating to recording apparatus for testing the acceleration or deceleration of vehicles
IPC: G01P1/12
Filed: 1937-02-25
Abstract: 491,203. Recording-apparatus. HARVEY, H. C. Feb. 25, 1937, No. 5901 /38. Divided application. [Class 106 (iv)] A device for testing the acceleration or deceleration of a vehicle incorporates a record strip or chart moved by a driving connection from a detachable and adjustable auxiliary road wheel 35 having a castor action, and in the construction shown in Fig. 1 comprises a record strip 12 bearing perforations engaging with toothed rollers 13, 19 driven through worm wheel 22 and worm 21 through clutch device 42 and flexible driving connection 41 from auxiliary wheel 35. A free loop of strip is maintained between the roller 13 and a frictional holding device comprising roller 17 and spring 17a, so as to ensure a smooth feed of strip. The clutch device 42 is operated by a lever 43 which also operates an electric switch, incorporated in the clutch device 42 and connected to clock actuated relays 44, 44a, making the circuit of electromagnetic markers 30, 30a, Fig. 2, producing, with the aid of the carbon ribbon 23 frictionally driven from the strip 12, marks 76 on the strip 12 every second and every tenth of a second, respectively, as shown in Fig. 3. During deceleration or acceleration the electromagnetic marker 30 produces a continuous line 75 on the strip 12 through the switch 45 and one or other of the pairs of contact springs 72, 73 actuated by the ball inertia switch 70, 71. The length of the continuous line is proportional to the distance travelled by the vehicle and can be measured by the scale 47, and the corresponding time can be ascertained by the one-tenth second marks 76. Skidding is shown by a gap in the continuous line. In the construction shown in Figs. 4 and 6 the chart 49 is driven by the toothed roller 48 through the worm 21 and clutch 42 from the auxiliary wheel 35 and the chart is marked by a metal point stylus formed on a U-shaped carriage 55 having a bunch of wire bristles 60 on a spring-controlled slider 58 which when in contact with the clock-rotated screw 53 cause the movement of the stylus across the chart, a lateral extension 56 of the carriage 55 sliding upon a guide bar 57. The wire bristles are put in contact with the screw 53 by retraction of the catch member 61 when the electromagnet 64 is energized through the switch 81 and one or other of the pairs of spring contacts 72, 73 actuated by the ball inertia switch 70, 71 during deceleration or acceleration. A half-nut may replace the bristles 60. The switch 70, 71 may be angularly adjustable in a vertical plane and may be replaced by an electric switch operated by the brake pedal during deceleration tests or by a switch operated by the accelerator pedal during acceleration tests. According to the Provisional Specification the ball inertia switch 70, 71 may be replaced by a pendulum switch and the wheel 35 may be located to one side or other of the vehicle instead of centrally.
Patent GB-331483-A (GB)
Title: Improvements in or relating to tyre building machines
IPC: B29D30/28
Filed: 1929-02-22
Abstract: 331,483. Firestone Tyre & Rubber Co., Ltd., (formerly Firestone Tyre & Rubber Co. (1922). Ltd.), (Firestone Tire & Rubber Co.). Feb. 22, 1929. Collapsable chucks for building tyres.-A collapsable drum for use in building tyre covers comprises a fixed segment 73 to which are pivoted segments 76, and a filling segment 77. The latter is fitted with a rack 78 adapted to mesh with a pinion 80 which is actuated by a handle 79.
Patent GB-225437-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B15/00
Filed: 1924-03-08
Abstract: 225,437. Cosby, E. L. H. March 8, 1924. Handles or holders with recessed-back retaining devices for brushes.-The perforated stock S of the brush is covered by a perforated plate V, fixed by screws &c., and this plate or the stock is provided with projections at the end engaging a recess in the back to hold the stock and plate securely against the back A. As shown, the recess B in the back A is undercut at the end C and is lined with a plate D shaped to fit the undercut end and fixed bv a screw G. The other end H of the plate D is turned at right angles and, together with a plate or head J on a tube I in the handle or stock, is fixed by screws K. The backing-plate V is formed at one end with projections X to engage the undercut end C of the recess B, or these projections may be on the stock plate S and project through holes in the plate V. At the other end of the plate V or stock is a projection Y engaged by the end of a rod P sliding in the tube I and' operated bv a knob Q fixed on the screwed end P<1> of the rod so as to move the rod to engage or release the projections Y. The screwed end P<1> of the rod engages a screw threaded bush or tube L screwed on to the tube I and fixed to the end of the handle or stock by screws N. A rim Z may be formed on the back A to cover the edges of the stock, or alternatively a rim may be formed on the edge of the stock. The plate V is perforated with holes not coincident with the bristle holes in the stock S so that, when the brush is washed, water or sediment does not remain between the stock and the plate.
Patent GB-998970-A (GB)
Title: A closable cabinet for the collection and safe storage of soiled linen
IPC: A61L2/00
Filed: 1962-02-16
Abstract: 998,970. Cabinets for soiled linen; bags. D. R. HUGHES. Feb. 16, 1962 [Feb. 19, 1961; Oct. 17, 1961], No. 6105/62. Headings A4A and A4G. [Also in Division A5] A cabinet for the collection and storage of soiled linen mounted on castors 2 is closed at the top by a hinged lid 3 inside which is a rotatably mounted drum member 6 having a single opening 10 through which soiled linen is inserted when it coincides with top opening 8 of the cabinet casing, the drum being rotated to discharge the linen into a bag 21 supported within the cabinet. The bag may be shaken by hinged plates 13, 14 operated by a pedal 17, the drum 6 being also rotated by means of a connecting link 31. The bag 21 is square in crosssection and the top edges of two opposite sides are fixed to closing members 22, 23 provided with projections 24 by which the bag may be suspended and a key operated lock 27 coacts with a catch element in a member 23 so the bag may be locked closed to prevent theft or to isolate the contents. In a modification access to the interior of the cabinet is provided by a hingedly mounted door 32 and rotary movement of drum 6 is effected by a chain 33 and chain wheel 35 which is partially rotated by a pedal 36 against a tension spring 37. A separate pedal 38 operates the shaking down mechanism. Arms 40 may be operated to close the bag while within the cabinet. The drum 6 may be automatically decontaminated each time pedal 36 is depressed by means of disinfectant pumped by a pump 62 from a reservoir 65 through a hollow journal pin. A strip of oil-impregnated felt forms a simple bacterial filter for the bag mouth.
Patent GB-291531-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J1/22
Filed: 1927-03-04
Abstract: 291,531. Freedman, P. March 4, 1927. Vacuum tubes.-The heater of an indirectlyheated cathode consists of a stem and a member wholly or partly surrounding the stem and connected with it at one end. The heater may be operated from the supply mains, and may consist of a mixture of a refractory conductor, such as carbon, and a refractory metallic oxide, such as magnesia; or the stem may be of nickel or molybdenum. As shown, the stem d is connected with a sheath d' of circular or elliptical section. The cathode a consists of a cylinder open at one end and closed or open at the other; it may be connected with the heater at the point of midpotential, or insulated by a filling of thoria or silica. The heater may be longer than the cathode.
Patent GB-289847-A (GB)
Title: Improvements in and relating to separators
IPC: B01D35/26
Filed: 1928-02-28
Abstract: 289,847. Luense, F. H. May 4, 1927, [Convention date]. Strainer separators; driving, suspending, balancing.-A separator has a screen surrounding a device which receives mixed solids and liquids and throws them centrifugally against the screen. The shaft 24 is connected by the coupling 25 to the shaft of the electric motor 18. The motor hangs from a bolt 15 supported by uprights 13 carried by the casing. The uprights carry springs 38 which assist in keeping the motor central, and the motor casing has a projecting arm 36 which engages a leaf spring 37 on one of the uprights, to diminish the jar at starting. The lower end of the shaft 24 has a bowl-like disc 26 and a conical bottomless member 27. The latter is secured to the shaft by arms 27<1> which are set at an angle to elevate material. The material is supplied through the funnel 35 and falls on to the disc 26. Owing to the rotation of the disc, the material is thrown outwards to the screen 28. Some of the liquid passes through the screen and is collected in a trough in the casing; the rest of the material drops to the pan 33. When sufficient material has collected in the pan, the arms 27<1> raise it through the conical member 27 by which it is again thrown to the screen. The peripheries of the disc 26 and member 27 are shaped so that the material is spread over the whole surface of the screen.
Patent GB-1197699-A (GB)
Title: Improvements in and relating to Device for Measuring a Displacement.
IPC: G01B15/00
Filed: 1969-02-05
Abstract: 1,197,699. Measuring displacement electrically. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 5, 1969 [Feb. 12, 1968], No.6282/69. Addition to 1, 173, 438. Heading G1N. Changes in the length of a sample 2 are measured by coupling one end to a piston 4 forming one wall of a resonant cavity 6, supplied with micro-wave signals from a reflex klystron 32. The difference between the klystron frequency and the resonant frequency of cavity 6 is sensed by a detector 22, which regulates the klystron frequency to eliminate this difference via device 36 and power supply 34. The klystron also feeds a reference cavity 20, the difference between the klystron frequency and the resonant frequency of cavity 20 being sensed by detector 104, which controls the position of a plunger 28 to eliminate this difference via a servo-loop comprising amplifier 106 and motor 108, the latter also driving a potentiometer 110 to indicate the position of piston 28, which corresponds to the position of piston 4 and hence to the length of sample 2.
Patent GB-252803-A (GB)
Title: Improvements relating to the manufacture of wall-ties and the like
IPC: B21F45/00
Filed: 1925-03-07
Abstract: 252,803. Expanded Metal Co., Ltd., and Booton, H. March 7, 1925. Rods and bars.-In a machine for automatically twisting metal strips to form wall ties &c., the strip is clamped at one end in a recess in a turret which is intermittently rotated to bring, the other end into alignment with jaws which automatically grip this end and are rotated to perform the twisting operation. In a machine in which the parts are duplicated and actuated alternately, a pair of turrets each provided with a number of radial recesses 2 to receive the strips 70 are rotated by ratchet gear 23, 24 through bell-crank levers 22 linked to a pair of levers 21 operated by a cam 19 on the driving shaft 11. The twisting jaws 7 are operated by a pair of slidable shafts 3 which are alternately driven from the main shaft by bevel gear 10, 9 through dog clutches, the members 8 of which are locked to the shafts and are rotatably mounted independently in a muff 12. The muff is provided with studs 13 engaged by a forked lever 14 mounted on a shaft which is rocked by a cam 18 through a forked lever 16 so as to traverse the shafts through their bearings 4, 5. The end of the strip in the turret is gripped during rotation of the turret by a jaw 26 having a projection 27 which engages a fixed cam surface 28 and the jaws 7 are closed by recesses 6 in the shafts 3 during the axial motion thereof. In order to ensure that the shafts 3 stop in proper position they carry pins 29 engaging V-shaped projections 30 on the bearings 4.
Patent GB-1002416-A (GB)
Title: Improvements in or relating to apparatus for measuring or responsive to the electrical conductivity of a liquid
Inventor: CALVERT RAYMOND
IPC: G01N27/06
Filed: 1962-02-19
Abstract: 1,002,416. Liquid conductivity measuring apparatus. WAYNE KERR LABORATORIES Ltd., and R. CALVERT. Feb. 19, 1963 [Feb. 19, 1962], No. 6401/62. Heading G1N. In an apparatus for measuring liquid conductivity comprising a pipe 11 of insulating material in a metallic pipe line 10, current from an A.C. source is caused to flow between an electrode 12 and the two metal pipes 10, and the potential gradients arising from the current flow are detected by pairs of electrodes 13, 14; 15,16 connected to high impedance feedback amplifiers 25, 28, the sum of the amplifier voltages being used to regulate the current supplied to electrode 12, by means of a servomotor 37, which responds to error signals from a comparator 35 wherein the sum of the voltages is compared with a reference voltage from a source 36. The regulation is effected by a potentiometer 21 and the current indicated by meter 38 is shown by mathematical analysis to be an indication of conductivity. The arrangement is said to overcome boundary layer effects at composite current feeding and measuring electrodes, and may operate an alarm or affect control annular electrodes which do not impede the flow of liquid may be used, and the reference source may be a further winding on transformer 18. Current electrodes may be provided in the pipe.
Patent GB-506498-A (GB)
Title: Improvements in air propellers with variable pitch during flight
IPC: B64C11/32
Filed: 1939-02-27
Abstract: 506,498. Screw propellers. MATTEUCCI, R. Feb. 27, 1939, No. 6467. Convention date, Feb. 25, 1938. [Class 114] In variable-pitch propellers provided with stop mechanisms with active and inactive positions wherein the active position is attained automatically by centrifugal force, there is arranged a holding means which is brought out of action manually by the pilot. In variable. pitch propellers wherein longitudinal movement of a rod 7 is communicated by rods 10 to the propeller blades to vary the pitch, a stop mechanism is employed comprising levers 12 pivoted at 12<0> and having fingers 13 which are thrown out centrifugally into an opening in the boss nut 8 and which also have arms 12<1> at right angles which carry spring detents operating in conjunction with a flange 16 on the crosshead 9. Normally the detent is in the first of two notches and the arm 12 is inoperative. When the engine speeds up, the arm is forced over into'the stop position and the detent engages a second inner notch. For the purpose of positively unlocking the,stop, the crosshead 9 carries pins 17 which are adapted to contact with spring restrained stops 18 when the rod 7 is manually moved, such contact resulting in the rods 17 pushing the locking levers back into their inoperative position. In a modification, instead of one spring detent co-operating with two notches in the member 16 there may be two spring detents so disposed that one or the other can be brought into engagement with its respective notch in the member 16. In an alternative form the bar 17 may be operated by a solenoid mechanism placed in the orosshead, in which case it is not necessary to move the rod 7 in order to unlock the stop.