baber/WOPTO huggingface dataset:
Patent GB-473693-A (GB)
Title: Improvements in stop mechanism for cylindrical grinding machines
IPC: B24B47/26
Filed: 1936-03-16
Abstract: 473,693. Grinding. LUND, Ltd., J., and SCAIFE, J. D. March 16, 1936, No. 7775. [Class 60] Stop mechanism for cylindrical grinding machines comprises a timing mechanism which is started by a switch operated by a projection carried on the hand-feed wheel of the machine, the positive feed of the grinding-wheel being stopped simultaneously with the starting of the timing mechanism. The hand-feed wheel 2, carried by the feed shaft 5, has thereon a stop 2a which, when it engages a pawl 3, stops the positive feed of the grinding-wheel. The wheel 2 also carries a projection 2b arranged, simultaneously with the contact of the stop 2a with the pawl 3, to close a switch 6, which energizes a magnet 9 to attract an armature 9a, thereby energizing coils 10, 11 to start a disc 10a in rotation, and through gearing 12 to move a pointer 13. The pointer, after a predetermined interval, engages a lever 14, moving it so as to allow a member to contact with another member 16, thereby closing the circuit of a magnet 17 to move a catch 18 away from a trip lever 19 ; the lever is moved by a spring 20 to open a main switch 21, thereby stopping the machine. The timing device is set by a lever 13a. In a modification, the timing device comprises an escapement mechanism including a pallet, a pallet wheel and a pendulum, which operates for the predetermined interval and then allows the circuit of the magnet 17 to be closed.
Patent GB-1387569-A (GB)
Title: Stabilisation of oxidised polysaccharides
IPC: C11D3/00
Filed: 1971-03-25
Abstract: 1387569 Detergents containing builders UNILEVER Ltd 10 March 1972 [25 March 1971] 7776/71 Heading C5D [Also in Division C3] A detergency builder which may be used in detergent formulations comprising sodium dodecyl benzene sulphonate and alkaline silicate comprises a stabilized oxidized polysaccharide obtained by contacting an oxidized polysaccharide which contains at least 20% of dicarboxyl units (based on the original anhydroglucose units) and undesired aldehydic or ketonic carbonyl groups with a carbonyl reactive agent to give a treated dicarboxyl polysaccharide containing less of said carbonyl groups than the untreated material. Other builders such as sodium citrate, sodium oxydiacetate, sodium oxydisuccinate, sodium carboxymethyl oxysuccinate, sodium carbonate and polyelectrolyte builders may be present.
Patent GB-238151-A (GB)
Title: Improvements in automatic electric circuit controlling devices
IPC: G04F1/08
Filed: 1925-03-23
Abstract: 238,151. Millar, T. L. M. March 23, 1925. Electromagnetic interrupters comprise a tube A containing a ball K and adapted to be rocked first one way and then the other by two electromagnets E, the ball K rolling alternately to each end of the tube and there bridging contacts H, H<1> in the circuit of the electromagnet at the other end. The tube A contains a viscous liquid, so that the ball moves comparatively slowly, and also carries another tube N containing a ball M which, when the tube is tilted moves quickly to the other end and retains the tubes in their new position till the other electromagnet is energized and tilts them back. The tube A may carry a contact 0 adapted to make and break a circuit at P. To increase the frequency of interruption a pin n may be inserted in the tube N to retain the ball M at one end of its tube and thereby causes the tube A to tilt back quickly as soon as the ball K has left the contacts H, H.
Patent GB-776801-A (GB)
Title: Improvements in or relating to measuring heads for pneumatic gauges
Inventor: LOXHAM JOHN
IPC: G01B13/08
Filed: 1955-03-17
Abstract: 776,801. Pneumatic linear-dimension gauges. SIGMA INSTRUMENT CO., Ltd. March 2, 1956 [March 17, 1955], No. 7864/55. Class 106 (2). A measuring head for a pneumatic gauge comprises a base member 4, Fig. 1, supporting a floating member 9 carrying a measuring anvil 36, and a needle valve, the needle 57 of which is positioned by the base member 4 and the orifice 47 of which is arranged to move with the floating member 9, there being an air supply conduit 50 leading to the orifice so that on gauging movement of the floating member 9 with respect to the base member 4, the orifice 47 moves with respect to the needle 57 to vary the escape area of the orifice. Preferably the floating member 9 is supported from the base member by lath spring arrangements 6-8, 31- 33. The needle, which is slidably located in a sleeve 59 moving with the floating member, is spring - urged against one arm 53 of a bellcrank pivoted at 55 on the base member, the other arm 54 of the bell-crank being spring-urged against the tip of an adjusting-screw 66 carried by the base member. The floating member 9 is connected to the measuring anvil 36 by a removable measuring arm 29 and the base member 4 has a caliper arm 12 removably secured thereto which carries a reference anvil preferably in the form of a V-shaped notch 23 with two reference surfaces 25, 27 for gauging an object 3 of circular X-section. The instrument can be used with measuring and caliper arms 29, 12 selected in accordance with the dimensions of the object being gauged. The caliper arm may be provided with an adjustably positioned foot 15 which may be set up on a jig to a standard dimension. The head may be supported on a parallelogram linkage from a grinding-machine. Specification 755,052, [Group XXIII], is referred to.
Patent GB-1379452-A (GB)
Title: Filter for urine samples to be used in pregnancy test and method of using same
IPC: G01N33/76
Filed: 1972-02-21
Abstract: 1379452 Filters for use in urine tests in pipettes MOCHIDA SEIYAKU KK 21 Feb 1972 [23 Feb 1971] 7924/72 Headings B1D and B1X [Also in Division G1] A urine sample for a pregnancy test is filtered by drawing it into a pipette 3 through a mass 1 of cellulose acetate and/or polyacrylonitrile fibres packed in the lower section of a tube 2 attached to the tip of the pipette. The tube 2, which is readily detached from the pipette, may be made of polyethylene.
Patent GB-100737-A (GB)
IPC: G01G1/30
Filed: 1916-06-05
Abstract: 100,737. Torsion Balance Co., (Assignees of Becker, C. A). June 23, 1915, [Convention date] . Weights.-In an analytical or other delicate balance wherein equipoise is effected by means of a chain hung at one end from the scale beam and attached at the other end to a vertically-movable support, the movable support is operated by a rotatable handle, thus avoiding excessive movements of the chain. The chain M is hung at one end from the beam by means of an adjustable screw m, and at the other end is hooked on to a slide P which is movable upon a vertical guide Q by means of a screw S operated through mitre-wheels connected to a handle arranged externally of the casing. The guide Q is graduated and may co-operate with vernier graduations on the slide P,
Patent GB-646232-A (GB)
Title: Improvements in the control of road vehicles driven by internal combustion engines
IPC: B60K28/04
Filed: 1948-03-17
Abstract: 646,232. Controlling motor vehicles. BENN, R. March 17, 1948, No. 7990. [Class 79 (v)] The clutch, brake and accelerator of a motor vehicle are controlled by a spring-controlled depressible driver's seat, depression of the seat causing through a mechanical connection the engagement of the clutch, release of the brake and acceleration of the engine to a predetermined degree. As shown the driver's seat 1 is mounted on a pillar 2. The pillar 2 passes through apertures in the floor of the vehicle and in a platform 3 secured to the floor. A compression spring 4 is arranged between the platform 3 and the seat 1 and urges the pillar and seat upwardly. At the bottom of the pillar are two pulleys 5 or like grooved members over each of which passes a cable 6, 7. The cables 6, 7 are anchored at one end, one cable extending to the clutch pedal and accelerator control and the other cable extending to the hand brake of the vehicle. The operations of the cables is such that when they are pulled by the compression spring 4 the brakes are applied the clutch disengaged and the engine de-celerates. When however the driver takes his seat, the tension of the cables is relaxed with the accompanying release of the brakes, engagement of the clutch and acceleration of the engine. In a modification of this arrangement the compression spring is replaced by a tension spring which is adjustably connected at one end to the seat and at the other end to the common pivot of a toggle linkage between the seat and the platform.
Patent GB-556345-A (GB)
Title: Improvements in or relating to electric welding apparatus
IPC: B23K11/06
Filed: 1942-06-11
Abstract: 556,345. Electric welding. ROBERTS, E. H. June 11, 1942, No. 7993. Addition to 544,363. [Class 83 (iv)) In an apparatus for electricwelding three elements to a central tube or former such as in welding fins to the tails of bombs, by three electrodes connected in the respective phases of a three phase alternating current and applied so that the current flows in series between the electrodes and the central tube, as described in the parent Specification copper laminations forming the secondaries of the transformers, are connected to the solid electrodes by passing their ends through openings in sleeves in which they are soldered, the sleeves being connected to the ends of the electrodes by bolts passing through the sleeves and through lugs extending from the electrodes. The laminations 4 which form the transformer secondaries are bent round the primaries and pass through the transformer iron laminations have their ends passed through openings in sleeves 6 to which they are soldered to form solid blocks, the sleeves being secured by bolts 7 between lugs 3 at the ends of the three straight copper castings 1 from which the weldings tips 2 project radially inwards. The laminations are divided so that they are more or less equally distributed on each side of the bolts. The castings are moved into welding positions by compressed air supplied to chambers closed by diaphragms 19 in contact with wooden or like buffer blocks 21. When pressure is released, the electrodes are returned by springs 16 assisted by the outwardly acting spring effect of the laminations 4. The electrodes and also the upper and lower edges of the laminations are kept cool by circulation of water from the main through pipes 12, 13 and passages 10, 11 and annular chambers 9 surrounding the bolts 7.
Patent GB-789199-A (GB)
Title: Improvements relating to piston rod stuffing boxes
IPC: F16J15/18
Filed: 1956-03-15
Abstract: 789,199. Stuffing-box substitutes. MAREP, S. N. March 15, 1956 [April 1, 1955], No. 8115/56. Class 122 (5). A stuffing-box comprises a resilient packing sleeve 7, Fig. 1, of externally-truncated conical form fitting within a chamber 1 of corresponding interior shape, and pressure means operative against the larger end of the sleeve for forcing it into the chamber, the inner and smaller end of the packing being always freely exposed to fluid pressure as the inner end of the chamber and formed with a cylindrical extension 9, Fig. 3, and/or an annular recess 13. When under fluid pressure, the annular lips 12, 14 at the inner end of the sleeve engage the surfaces of the chamber 1 and piston-rod 11. The outer end 20 of the packing sleeve 7 is reinforced with fabric to provide a wear-resistant face for engagement by a presser element 15 movable by a gland nut 17 to compress the packing. The packing may be of split form to facilitate assembly and removal; the surfaces of separation 21, 22, Fig. 3, are of serrated form to reduce leakage.
Patent GB-252499-A (GB)
Title: Improvements in and relating to wabbler driving mechanism
IPC: F16H23/04
Filed: 1925-03-27
Abstract: 252,499. Hulsebos, W. March 27, 1925. Swash-plate linkages ; Cams. - A wobbler or swash-plate adapted to drive or to be driven by a shaft through .eccentric inclined bearings is also connected to the shaft by a supporting member or members allowing rotary and spherical freedom but constraining the swash-plate in the direction of the axis of the inclined bearings, the device being applicable to engines, pumps, compressors &c. The wobbler 4, Fig. 1, driven through inclined eccentric bearing members 2, 3, is constrained axially by an annulus 8 mounted on a spherical enlargement 7 of the shaft and provided with a flange 9 engaging an annular groove in the wobbler. The bearings 2, 3 may be carried by an inclined crank, Fig. 2, and' the annular groove in the wobbler engaged by a ring 9 connected to the crank by a pin 10 passing through a hole therein flared at both ends to allow universal motion. In the form shown in Fig. 4, in which the wobbler is mounted on bearings 11, 12 axial thrust is taken by a plate 9 secured to the inclined support 3 and acting through thrust bearings 17, 18, the outer race members 15, 16 of which form bearing supports for the wobbler. This arrangement may be modified by substituting for the thrust bearings 17, 18, a single ring of balls engaging deep grooves in concentric race members, the outer race member being externally spherical to engage the wobbler. In a further modification a double ring of balls runs on a spherically formed track in an outer race member secured to the wobbler. In the form shown in Fig. 3, the ends 13, 14 of the wobbler member have spherical engagement with the inclined bearing supports 2, 3. Specifications 135,011 and 183,488 are referred to.
Patent GB-590534-A (GB)
Title: Improvements in or relating to brake mechanism
IPC: F16D49/16
Filed: 1945-04-04
Abstract: 590,534. Brake mechanism particularly for vehicle propeller shafts. CLARK EQUIPMENT CO. April 4, 1945, No. 8319. Convention date, March 23, 1944. [Class 103 (i)] The shoes 16 of a brake for the propeller shaft 27 of a vehicle are mounted by means of springs 9, 12 on a bracket 8 secured to the fixed face plate 7 of the vehicle motor 6 mounted adjacent to a side member 5 of the vehicle, and enclose a drum 18 secured to the motor shaft 25 and the propeller shaft 27. The shoes are held out of engagement with the drum by springs 45 between their free ends 28, 46 and a lug 44 on a further bracket 42 secured to the face plate 7 and having a channel 47 enclosing lugs 48 on the shoes to retain them in the plane of the drum. A link 30 passing through free ends of the shoes is pivoted at 53 to a bell-crank 52, 54 pivoted at 50 to one shoe while an adjustable nut 39 on the other end abuts on the arm 38 of a bell-crank 36, 38 pivoted to the other shoe at 35 and limited in its clockwise movement by end flange 28 of the shoe. The arm 36 is connected to any known hand brake operating mechanism, while the arm 54 is connected by a link 56 to a piston and cylinder assembly 62, 65, (Fig. 1B), integral with a bracket 64 bolted to a pad 68 welded to the outboard side of the side frame member 5. Thus the brake may be controlled by fluid pressure introduced through a suitable boss 66. The opposite ends of the spring 9, (Fig. 1A), are slotted to receive studs 14 and, the surfaces are serrated to engage correspondingly serrated surfaces on the ends 15 of the brake shoes so that the position of the brake shoes can be adjusted to compensate for wear.
Patent GB-564021-A (GB)
Title: Improvements in electric switches with rotary contact members
IPC: H01H35/40
Filed: 1943-05-25
Abstract: 564,021. Pneumatic actuation of switches. ORTIZ, J. O., and MARTI, A. S. May 25, 1943, No. 8331. [Class 38 (v)] A switch of the character set out in Specification 550,973 is provided with a pendulum operated by being blown upon by the operator or otherwise by a current of air, and provided also with a finger-actuated operating member. The pendulum 16 is pivoted at 15 and provided with a dished part 18 located behind a grid-like opening 29 in the cover 27. A pawl 17 on the pendulum 16 is held by a spring blade 19 against a toothed drum on an axle 3 adapted to be advanced one tooth for each oscillation of the pendulum. The axle 3 also carries a further toothed wheel 4, alternate teeth whereof are conducting and connected by metal 6a to one terminal 7, these teeth being engaged by a further pawl 9 connected to the other terminal 11. The finger-actuator 20 is carried on the pendulum near the pivot 15.
Patent GB-746638-A (GB)
Title: Improvements relating to unilaterally conductive devices
IPC: H01L23/367
Filed: 1954-03-22
Abstract: 746,638. Semi-conductor devices. GENERAL ELECTRIC CO. March 22, 1954 [March 20, 1953], No. 8341/54. Class 37. A rectifier device comprises an L-shaped conductive member 3, e.g. of Cu, and a further L- shaped member 4 bolted to it but insulated therefrom by insulating layer 7 and washers 8a, and by insulating sleeves surrounding the connecting bolts 8. A semi-conductor rectifier element 5 with electrodes on its opposite surfaces is mounted with one electrode bearing directly on member 3 while the other is connected to member 4 by a flexible conducting member 6, e.g. Cu. Member 4 is so mounted that the outside surface of its upstanding part is offset outwards from the adjacent end 3c of member 3 so that when members 4 of two devices are bolted together (as in Fig. 1) to form a common terminal, short-circuiting between respective members 3 which are provided with cooling fins 9 is avoided. Full wave and bridge rectifier circuits comprising combinations of such devices bolted together are also described (Figs. 3 and 4, not shown). The rectifier element may comprise (as fully described in Specification 727,900) a Ge crystal sandwiched between a layer of acceptor impurity In and one of donor impurity material Sb, which impurities are diffused by heat into the Ge to form a PN junction, fernico electrodes being afterwards soldered to these layers.
Patent GB-180795-A (GB)
Title: Improvements in or relating to machine sheep shears
IPC: B26B19/24
Filed: 1921-03-17
Abstract: 180,795. Stuart, G. L. March 17, 1921. Hair-clippers.-In machine sheep shears in which the operating lever A carries at its forked end a spring steel plate C through which the driving pins G of the lever pass freely to engage with the cutter-plate F, a screw adjustment is provided for acting upon the middle finger or tongue D of the plate C, and this tongue has a narrow root portion so as to be readily responsive to the adjustment effected by the screw H. The middle tongue D may be bifurcated as shown to form prongs D', D<2> for use with a four-toothed cutter.
Patent GB-977019-A (GB)
Title: Improvements in or relating to moderator structures for nuclear reactors
Inventor: LEMESLE GEORGES
IPC: G21C5/08
Filed: 1961-03-08
Abstract: 977,019. Moderator structures. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 8,1961 [March 1 1960], No. 8455/61. Addition to 913,818. Heading G6C. A moderator structure for a nuclear reactor formed by an assembly of bars 12, e.g. of graphite located one above another to form adjacent columns, those in the centre having longitudinal channels 13, play being provided between each column and the neighbouring columns, has parallelepiped keys 14, 14a, located in longitudinal radial keyways formed in the lateral sides and in two opposed corners of the bars. A rigid holding structure 9 is provided to support the assembly at its periphery and is formed by pillers forming a "squirrel cage" around the assembly and fixed at one end to the base 2 and at the other end to the top 10 of the reactor core. The pillars in the embodiment shown are cylindrical hollow metallic, e.g. steel, posts 17 located within graphite bars 18 by metallic crowns 19 with centering lugs 20 engaging radial grooves 21 in the bars, and connected to the base 2 by steel ball and socket joints 22. In an alternative embodiment, the pillars are provided by prestressed tie rods similarly located along the axes of columns of graphite bars. At the top of the reactor, the pillars are secured by links 23 in which are holes through which pass lugs 24 provided on steel ballast components 29a mounted on the reflector peripheral columns of graphite bars 12. The inner columns of graphite bars 12 are provided with ballast components 29, hollowed as at 30 in line with the channels 13. Their role is to prevent lifting of the upper graphite bars of the structure by the coolants flowing through the channels 13. Certain of the peripheral links 23 are formed with projections 25 which engage with play in corresponding recesses 26 integral with the pressure vessel 27 surrounding the reactor core. Specification 977,020 also is referred to.
Patent GB-182164-A (GB)
Title: Improvements in cylindrical marine boilers
IPC: F22B11/00
Filed: 1921-03-19
Abstract: 182,164. Scaccianoce, S. March 19, 1921. Boilers, superheating in steam spaces of.-In a cylindrical marine boiler having water tubes g forming the walls of the combustion chamber within a casing d, the casing is so extended upwardly as to direct some of the heating gases through tubes j extending across the boiler steam space.
Patent GB-160429-A (GB)
Title: Improvements in and relating to shaving and toilet requisites
IPC: A45D27/22
Filed: 1921-03-19
Abstract: 160,429. Bouquet, F. March 20, 1920, [Convention date]. Shaving-appliances.-A case for shaving requisites comprises a movable side or lid b carrying a platform f supporting the accessories and slidable in slotted guides h on the lid. The lid is held in the closed position by a spring stud e and. is supported in its open condition by slotted sec- . tors c thereon engaged by studs d fixed to the side walls of the case. The platform is drawn forward by a slide i to obtain access to the cups j, k holding the shaving-brush and soap cases m, n and a sheath o holding one or more razors p. A mirror u sliding in lateral grooves at the back of the case may be withdrawn through a slot v and supported against the handle x by the engagement of one of its longer edges in a groove l in the upper part of the box. Movable stops y support the lower part of the case when hung by the handle on a wall. A strop, a case containing razor blades, &c. may be held between the platform and the bottom of the case. The Specification as open to inspection under Sect. 91 (3) (a) describes also a brush case provided with a lateral cover q for the introduction of the brush, the cover being kept closed by a screwed collar r on the brush which also serves to catch any water when the brush is in use or to support the brush upright on the top of the case. The case m may be in two half cylinders kept closed by the collar r. The cake of soap is secured to the collar s which forms a cover for the case n, which may be similar to that for the shaving-brush. This subject-matter does not appear in the Specification as accepted.