baber/WOPTO huggingface dataset:
Patent GB-757886-A (GB)
Title: An electrically-controlled drilling machine, more especially for drilling deep holes
IPC: B23Q16/00
Filed: 1952-03-21
Abstract: 757,886. Control of several motors. WOLLENHAUPT, J., and MAECKER, K. March 21, 1952 [March 21, 1951; Dec. 5, 1951; Feb. 28, 1952], No. 7399/52. Class 38(3) [Also in Group XXII] An electric motor control system for a drilling machine, particularly for drilling deep holes, comprises a switch-operating disc 29 for indicating and terminating swarf-clearance steps, the disc rotating through a certain angle from its initial position during the high-speed, swarfclearing withdrawal movements of the drill head 22 and returning. to the initial position during the high-speed return movements to actuate a switch which stops the high-speed return with the drill at, or just short of, the position reached before the swarf-clearing operation. In the embodiment of Fig. 4, which adapts a normal two-motor machine for operation according to the invention, the high-speed motor 24 is coupled by an electrical synchronous connection 28 to a motor 27 for rotating the switch-operating disc 29. The drill-head table 22 is formed with a nut engaged by a lead screw 23 driven through gearing 25 and is advanced to the workpiece at high-speed. The motor 24 is then stopped and the working stroke carried out by motor 26 which is reversed to assist the motor 24 for the swarf-clearing operation, both motors running in the forward direction to return the drill and the motor 27 being energized, reversed and switched off simultaneously with the motor 24 during swarf-clearance to rotate the switch-operating disc 29. The motors 24, 27 may be braking motors linked together in a circuit which corrects for nominal differences in speed. If the high-speed return is to be terminated short of the positions previously reached, the motor 26 is run in reverse only during the swarfclearance operation. The depth of hole drilled may be controlled by a cam device on the drill head and control means on the bed of the machine which return the drill head at high-speed to its starting position, the motor 27 remaining inoperative during this movment and the movement up to the workpiece. Instead of the maximum depth of the hole drilled corresponding to one rotation of the switch-operating disc 29, it may be extended by mounting the disc on a threaded spindle which carries it out of the plane of the switch 56 upon rotation of the disc swarf-clearance. The length of the drilling steps can be adjusted by a regulatable contact maker, such as a timing mechanism. Also, the swarf-clearance operations can be initiated by a release mechanism in the feed gearing which operates through an adjustable stop spring upon increase in drilling pressure or torque. Specifications 621,559 [Group XXII], 718,507 and 720,478 are referred to.
Patent GB-127677-A (GB)
Title: A Process for the Production of Glauber's Salt and Sulphuric Acid Solutions from Nitre Cake & other Acid Sodium Sulphates.
Inventor: DAWSON HARRY MEDFORTH
IPC: C01D5/02
Filed: 1917-11-21
Abstract: 127,677. Dawson, H. M. Nov. 21, 1917. Drawings to Specification. Sulphuric acid; sodium sulphate. - Sulphuric acid is obtained from nitre-cake and other acid sodium sulphates by dissolvng to produce solutions the concentration of which is predetermined exactly by the composition of the acid sulphate and the degree of cooling chosen, and then cooling to the selected temperature (below about 0‹ C.), whereby crystals of sodium sulphate and a solu. tion having the maximum ratio of sulphuric acid to sodium sulphate are obtained. In a modification, water is added during the cooling. Curves are given showing the amount of sodium sulphate that is held in solution in acids of various concentrations at different temperatures, and directions are given for the use of these curves for carrying out the process.
Patent GB-847297-A (GB)
Title: Improvements in or relating to the manufacture of ladies' stockings
Inventor: MORWOOD WILLIAM ERNEST
IPC: A41B11/00
Filed: 1958-03-07
Abstract: 847,297. Stockings. TAYLOR-WOODS Ltd. May 21, 1959 [March 7, 1958], No. 7487/58. Class 141 [Also in Group XV] A stocking knitted without reinforcement is reinforced by flocking applied to the outside by means of a heat-setting adhesive.
Patent GB-1177415-A (GB)
Title: Speed Control Circuit for a Single Phase Commutator Electric Motor
IPC: H02P25/14
Filed: 1967-02-16
Abstract: 1,177,415. Control of A.C. motors. JANOME SEWING MACHINE CO. Ltd. 16 Feb., 1967 [18 Feb., 1966; 11 Oct., 1966], No. 7552/67. Heading H2J. A single-phase commutator motor M having field windings L1, L2, is supplied through a symmetrical semi-conductor device SSSM whose trigger circuit comprises pulse transformer PT associated with semi-conductor element SSST which responds when the charge on capacitor C1 reaches a predetermined level. The capacitor is connected across the A.C. source in series with variable resistor VR and protective resistor R1  Only the initial cycle of the oscillatory pulse passed by the transformer PT is of high amplitude, the remaining oscillations being damped by resistor r or by arranging the transformer windings so that the oscillatory voltage opposes the source voltage. Capacitor Co prevents highfrequency interference. In another arrangement the trigger circuit has an additional resistor-capacitor stage connected across the capacitor Cl. A resistor may be connected to provide feedback from the motor circuit to the trigger circuit for speedstabilization. The resistor VR may be in the form of a tapped resistor with contact studs and a slider which is adapted to bridge adjacent studs so that there is no open circuit during wiper movement. The resistive increments between studs at the low-speed end may be smaller than those at the high-speed end.
Patent GB-1202591-A (GB)
Title: Improvements in or relating to jacquards
Inventor: SALTENSTALL PETER
IPC: D03C3/16
Filed: 1967-02-17
Abstract: 1,202,591. Jacquards. JOHN T. HARDAKER Ltd. 16 Feb., 1968 [17 Feb., 1967], No. 7603/67. Heading D1E. A centre shed selvedge jacquard has horizontal reading needles D, vertical intermediate control needles B, horizontal hooks A and an oppositely reciprocating griffe frame F and "bottom" board H. The frame F and board H are reciprocated by a pivoted lever K, the reading needles D are pressed onto the continuous pattern card by a presser frame O which is pivoted to move upward and towards the pattern for pressing and which may be arranged so that either selected or non-selected needles D engage the books with the griffe and the endless paper pattern is cut .from a standard pattern utilising eight staggered rows of holes to give three selvedge readings.
Patent GB-152037-A (GB)
Title: Improvements in spring arrangements for vehicles
IPC: B60G11/10
Filed: 1917-05-31
Abstract: 152,037. Johnson, J. Y., (F.I.A.T. Fabbrica Italiana Automobili Torino, Soc. Anon.). May 31, 1917. Semi-elliptic springs having one end sliding in a bearing, have the other end fixed in a pivoted block. Fig. 1 shows a spring in which a double master leaf has its ends 14 turned outwards to engage in a T-shaped slot in a cylindrical block mounted in a bracket 4, the position of the block being adjusted by washers. The other end of the spring slides in a slotted cylindrical block 8 mounted in a pivoted case 5 and provided with adjusting washers. The case 5 acts as a lubricator reservoir, and the spring leaves are grooved longitudinally, besides being perforated for the distribution of oil.
Patent GB-1044932-A (GB)
Title: Biuret triisocyanates
Inventor: BRITAIN J W
IPC: C07C273/18
Filed: 1965-02-23
Abstract: Biuret triisocyanates of the general formula <FORM:1044932/C2/1> wherein R is an aliphatic or alicyclic residue, are prepared by reacting an aliphatic diisocyanate and/or alicyclic diisocyanate with a monohydric tertiary alcohol at a temperature within the range of 70-205 DEG  C. in an isocyanate: alcohol molar ratio of at least 2.5: 1.
Patent GB-1466705-A (GB)
Title: Electrical connector assembly
IPC: H01R24/00
Filed: 1974-02-21
Abstract: 1466705 Surface connector AMP Inc 21 Feb 1974 [7 March 1973] 7861/74 Heading H2E A connector assembly comprises an insulating housing 34 receiving a forked contact receptacle 10, having a post portion 12 carrying two spring arms 22, 24 prestressed apart with the remote edge of each arm carrying a lug 54, inserted arms-first into a cavity 36 in the housing to face an opening through which a mating pin can be inserted: cam surfaces 38 within the cavity act on the lugs 54 to spring the arms further apart and provide a contact retaining shoulders 52 behind which the lugs may latch. The housing, which may have multiple cavities, can engage 16 receptacles when their posts 12 are mounted in holes 14 in a printed circuit or other board 20. The receptacles may be formed on a strip (Fig. 2, not shown) and gang-inserted into the board. Only some of the cavities (50, Fig. 4, not shown) need carry latching shoulders; in these the pin-receiving openings may be partially cut back to allow entry of a releasing tool.
Patent GB-900377-A (GB)
Title: Improvements relating to collapsible umbrellas
IPC: A45B19/06
Filed: 1961-03-03
Abstract: 900,377. Umbrellas. BREMSHEY, F., and FULLING, W. March 3, 1961 [April 6, 1960], No. 7867/61. Class 134. In an umbrella comprising telescopic stick and ribs, main struts pivoted to the inner ends of the outer ribs and to a main slider, and auxiliary struts pivoted to the main struts and to an auxiliary slider, an eccentric braking device 41 is rotatably mounted on an outer rib part 25 and has a clamping surface 42 which, when the main strut 30 is at an angle to the rib, bears against the inner rib part 26, and, if the rib parts begin to telescope into one another, moves into a clamping position by virtue of its eccentricity, but is rotated out of the clamping position by the main strut when this moves into a position parallel to the rib. As shown in Fig. 4, the braking device has a stop 44 which bears against the main strut 30, and a centre of gravity S outside its axis of rotation so that at least one brake tends to rotate into the clamping position if the umbrella is held vertically upwards or is held horizontally and has two diametrically opposite ribs provided with brakes. Alternatively, the brake may be provided with a follower 47, Fig. 8, which engages with the upper surface of the main strut 30 until the brake is in its clamping position, whereupon the main strut springs resiliently over the follower to continue its upward motion. Due to unavoidable inaccuracies in manufacture it may be preferable to form the brake with a resilient extension 46, Fig. 6, of the braking surface 42, which bears against the inner rib part when the main strut is parallel to the rib but which only exerts a very weak braking force against telescoping of the rib parts.
Patent GB-870864-A (GB)
Title: Improvements in inverting gear for precast concrete structural sections
IPC: B28B7/08
Filed: 1958-03-12
Abstract: 870,864. Inverting concrete beams. ALWEGFORSCHUNG G.m.b.H. March 12, 1958 [May 2, 1957], No. 7934/58. Class 78 (4). A long and heavy precast concrete beam, e.g. a track for an elevated mono-railway, is inverted by a device including a lower cradle 1 rolled along a track 13 and an upper cradle 2 separable from the lower cradle 1 and rolled along a further track 13. As illustrated, the lower cage 1, which carries a rail truck transporting the beam, is locked in its displaced position by a pin passing through registering holes in the cradle and in a fixed bracket 21. Bolts 4 connecting ties 19 between the upper and lower cradles 1, 2 are then disconnected so that the upper cradle can be rolled to the position shown in broken lines which brings the beam 7 to its proper position for erection. The tracks 13 may be formed as racks engaged by teeth 12 on the cradles 1, 2 and the cradles may be moved by cables 18, 19, as illustrated, or by rams connected between the cradles or between the cradles and the fixed sub-structure. Clamps 9 securing the beam 7 may be operated by screws or by hydraulic or pneumatic rams and terminate in plates 10 carrying hard rubber facings 11.
Patent GB-1173793-A (GB)
Title: Azidoacridines and the Use Thereof in Light-Sensitive Compositions
Inventor: REYNOLDS GEORGE ARTHUR
IPC: G03F7/008
Filed: 1967-02-20
Abstract: 1,173,793. 9-Azidoacridine and derivatives thereof. EASTMAN KODAK CO. 20 Feb., 1967 [25 Feb., 1966], No. 8000/67. Heading C2C. [Also in Divisions C3 and G2] The invention comprises substituted and unsubstituted 9-azidoacridines, in which one benzene moiety of the molecule may be hydrogenated. Specified substituents include chlorine, trifluoromethyl, chlorophenyl, methyl, t-amyl, phenyl, methoxy, ethoxy, carbomethoxy, carboethoxy, amino, methylamino, acetamido, nitro and cyano groups and fused benzene rings. The compounds are prepared by reacting the appropriate 9-chloroacridine with sodium azide. The compounds are light-sensitive and may be used in lithographic materials (see Division G2). The 9-chloroacridines may be prepared by reacting the appropriate N-phenylanthranilic acids or 9-acridones with phosphorus oxychloride, followed by treatment with ammonia.
Patent GB-217343-A (GB)
Title: An improved cementitious composition, and method of making the same
IPC: E01C3/04
Filed: 1923-03-21
Abstract: 217,343. Amies, J. H. March 21, 1923. Concretes.-A cementitious composition, suitable for laying under compression on a concrete road-bed, is produced by macerating earthy material in alkaline water and mixing therewith hydroxide of calcium and Portland cement, a small quantity of oxide of calcium in granular form being added to the mass just prior to its removal from the mixer. Specification 5242/14 is referred to.
Patent GB-697789-A (GB)
Title: Improvements relating to beating engines for paper pulp
Inventor: MCNEILL ROBERT
IPC: D21D1/14
Filed: 1950-03-31
Abstract: 697,789. Paper pulp beating-engines. Mc- NEILL, WINTERBURN INVENTIONS, Ltd. June 20, 1951. [March 31, 1950 ; June 1, 1950] Nos. 8064/50 and 13681/50. Class 96. A valve flap 7 when in the vertical (full line) position stops pulp circulating over the concrete &c. backfall 3 of a paper pulp beating-engine and is periodically moved to the open (chain line) position to aid in directing the pulp over the backfall 3. The flap 7 may be moved by a solenoid plunger acting against spring pressure, and may be held open by a cam-actuated catch. The solenoid may be energized through a rotary switch synchronised with the roll drive, or the flap 7 may be moved hydraulically, pneumatically or mechanically. The usual roll doctor may be retained but lifted well off the roll and may co-operate with the valve flap 7. Specification 697,793 is referred to.
Patent GB-245642-A (GB)
Title: Improvements in and relating to box for packing biscuits or other suitable kinds of goods
IPC: B65D6/18
Filed: 1925-03-26
Abstract: 245,642. Eynon, E., Eynon, E. W., Eynon, A., and Owen, J. J.. March 26, 1925. Knock-down boxes; corner joints.-A knockdown box comprises four side plates 1 - - 4 hinged together, a bottom plate 6 hinged to the side 1 and a lid 5 hinged to the plate 4, the plates 1 and 4 being connected together in the erect condition by a sliding bolt 9 and sockets G while flanges M on the plates 2, 3 and 4 engage within flanges H on the bottom plate. and are retained therein by a looped spring P carried by the bottom plate. The parts are retained in the folded superposed condition by clamps Q, R carried by the lid and bottom plate and slidable and rotatable in staples thereon.
Patent GB-319183-A (GB)
Title: Improvements in turntables for railway tracks
IPC: B61J1/02
Filed: 1929-03-13
Abstract: 319,183. Faure, J. Oct. 16, 1928, [Convention date]. Turntables, with a base and table 1 formed from pressed metal with tracks 3, 4 of invertedchannel section, have the channel carried to the extreme end of the track entry. The tracks are broadened at the entry and extend further on the outside than on the inside. The table is reinforced by pressed ribs 11, 12 and a central rib 13 of circular, elliptical, or oval form. The edges 10 of the apertures are raised. The base has folds 20 which engage the rails and ribs 21, 24. The base and table are connected by a pivot 15 and washer 18 and a socket 14 riveted to the table, the upper part of the base being depressed to receive the washer and form an oil reservoir.
Patent GB-374534-A (GB)
Title: Improvements relating to the mounting of electrical apparatus
IPC: H05K7/16
Filed: 1931-03-17
Abstract: 374,534. Automatic exchange equipment. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and THORNE, A. F., 8, Glenton Road, Lee, both in London. March 17, 1931, No. 8196. [Class 40 (iv).] The panels 1 carrying the switches and relays are pivoted so that they may be rotated about a vertical axis to give easy access to the rear of the apparatus. The method of pivoting is shown in Fig. 5, the transverse member 4 of the rack being bored to receive a bush 11 which constitutes a bearing for the transverse member 3 of the panel. The rotation of the panel in either direction is limited by a stop 10 on the member 3 co-operating with stops 8, 9 on the member 4. The cable is brought through the bush 11 and is clamped to the member 3, a suitable vertical length being provided above the rack to minimize'the twist. Where two panels are mounted one above the other, a space is left between them, and the cable leading to each is clamped to the transverse rack member supporting the other.
Patent GB-923862-A (GB)
Title: Porous refractory materials
IPC: C04B38/06
Filed: 1960-03-09
Abstract: Porous refractory shapes are made by impregnating a sponge of a material which leaves substantially no residue on heating and of the intercommunicating cell type with a suspension or dispersion of refractory particles in a liquid, and heating the impregnated sponge to remove the liquid and material of the sponge and sinter the refractory particles together.  Refractory clays, minerals, oxides, borides, carbides, silicides and nitrides are specified; in the examples are used alumina, beryllia and china clay.  The sponge may be polystyrene, polyethylene, polyvinyl chloride, latex or polyurethane.  A number of impregnated sponges may be combined before drying and firing.  A fired shape may be subsequently impregnated and refired.
Patent GB-566186-A (GB)
Title: Improved container and lid therefor
IPC: B65D43/12
Filed: 1943-05-25
Abstract: 566,186. Containers. COOPER, E. May 25, 1943, No. 8274. [Class 18] A container 3 is provided with a sliding lid 1, the flange 2 being inturned at 2a to engage a groove 3c. A projection 2c slides in a groove 3a and engages a shoulder at the junction of this groove with groove 3c so that outward movement of the lid is limited. Movement of the lid in the opposite direction is restricted by the engagement of flange 2 with the container mouth.
Patent GB-297691-A (GB)
Title: Improvements in advertising signs
IPC: G09F13/14
Filed: 1927-03-25
Abstract: 297,691. Burns, W. A. March 25, 1927. Signs.-A stencil or other display backed by a sheet of prismatic glass and illuminated by diffused light, such as daylight, is illuminated at night by means of a lamp or lamps and reflectors arranged outside the daylight beam. The stencil &c. A and prismatic glass sheet B are illuminated by a downwardly and frontwardly directed daylight beam E, E<1>, which after refraction through the prismatic glass, emerges horizontally as a beam F. F<1>. For night illumination. a lamp L<1> may be arranged at the top of the sign, in conjunction with a reflector R<1> at the bottom of the sign. A rearwardly arranged lamp L<2> and reflector R<2> may be used. The lamp L<3>, Fig. 2, and reflector R may be arranged at the lower edge and to the rear of the sign, a diffusing glass sheet D being interposed between the lamp and the stencil. This construction may be arranged as a duplex or double faced sign. The stencil A, Fig. 4, and prismatic glass B may be separated at their lower edges, the lamp L<4> and reflector R being arranged between them.
Patent GB-854047-A (GB)
Title: Valve actuator for gas pressure type fluid dispenser
IPC: B65D83/14
Filed: 1959-03-10
Abstract: 854,047. Forcing liquids by gaseous pressure. POTOCZKY, J. B. March 10, 1959 [March 11, 1958 ; Oct. 13, 1958], No. 8295/59. Class 102(2). [Also in Group XXIX] A valve in a container for a fluid medium that is dispensed by gas under pressure in the container is arranged so that it can be opened only when the container is in a predetermined attitude, e.g. vertical. As shown in Fig. 2 a stem 18 in the container 14 is depressed to open the valve by pressure on a flexible diaphragm 36 transmitted through a ball 30 to a flexible partition 24 which has a socket 26 receiving the stem 18. The stem 18, which is hollow for the passage of fluid, communicates with a discharge nozzle 28 having a flexible closure flap at its outer end. Should the container be tilted the ball rolls away from the centre of a conical formation on the partition 24 so that the valve cannot be opened. The conical formation may be reversed so that the valve can be opened only when the container is inverted. In a modification the transmission of opening pressure to the valve is through liquid in a piston and cylinder device 270, 261, Fig. 6, the liquid flowing out of the cylinder should the container be tilted. In this embodiment the closure flap 290 on the nozzle is formed on an insert retained by a rib 288 fitting in a recess 282. Fig. 13 shows a further modification with liquid transmission, the cylinder 361 containing a spring-loaded piston 370 and being surrounded by an annular chamber 365 to which the liquid flows when the container is tilted. Another embodiment utilizes a pendular member 472, Fig. 15, retained in socket 471 and effecting transmission of movement to the stem 18 only when the container is vertical.
Patent GB-100689-A (GB)
Title: Telephone Transmitter.
Inventor: PORTER STEPHEN CASE
IPC: H04M1/04
Filed: 1916-06-12
Abstract: 100,689. Porter, S. C. June 12, 1915, [Convention date]. Supporting.-A telephone transmitter a is mounted with its diaphragm adjacent to one wall 1 of a resonating- chamber b, the opposite side 2 being open. The box b may be placed within a similar resonant chamber c having its open side 4 opposite the wall 1 of the box b. The open side 4 may be covered by a screen 5 of material that will allow the passage of incident sound waves.
Patent GB-434692-A (GB)
Title: Improvements in or relating to apparatus for delivering measured quantities of tea and the like
IPC: G01F11/24
Filed: 1935-03-18
Abstract: 434,692. Delivering measured quantities of granular materials. WILSON, W., 205, Wollaton Road, Nottingham. March 18, 1935, No. 8321. [Class 106 (v)] In apparatus for delivering measured quantities of granular materials of the kind comprising a supply container having at its base a vertically rotatable member 3 formed with peripheral measuring pockets, the rotor is mounted on a spindle 10 journalled at one side in a wall of a housing 11 for the rotor which at the other side carries a closing plate 12 through which project ratchet teeth corresponding in number to the number of measuring pockets and the spindle carries a lug or the like 9 provided with a spring pressed plunger 8 adapted to engage with the ratchet teeth. The lug is actuated by a handle 6 mounted on the spindle 10 and adapted to be returned by a spring 13. The closing plate 12 carries a spring blade which engages the ratchets to prevent reversal of the rotor and has abutments to limit the movement of the handle 6.