baber/WOPTO huggingface dataset:
Patent GB-189694-A (GB)
Title: An improved driving mechanism for the rotary hook in rotary lockstitch sewing machines
IPC: D05B57/14
Filed: 1922-02-09
Abstract: 189,694. Cooper, J., and Twin Bobbin Sewing Machine Co., Ltd. Feb. 9, 1922. Lock-stitching by hooks; upper and lower shafts, connecting.-A rotary hcok 14 is actuated by a crank 30 and drag link connection with one end of a lever 13 which compounds motions received from two cams on the main shaft. The lever 13 is pivoted upon a lever 20, receives rocking movements about its pivot 19 from a cam-actuated lever 18, and is moved bodily by the oscillation of the lever 20 from a second cam-actuated lever 8.
Patent GB-1085044-A (GB)
Title: Improvements in or relating to refrigerators
IPC: F25D21/14
Filed: 1966-01-27
Abstract: 1,085,044. Refrigerators. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Jan. 27, 1966 [Jan. 27, 1965], No. 3794/66. Heading F4H. A food container (2;), Fig. 3 (not shown), for mounting on a shelf (3), Fig. 5 (not shown), below an evaporator, has a removable lid (1), Fig. 1 (not shown), in the form of a drip tray with an outlet opening (6) communicating via a duct (8) on a wall of the container (2) with a water outlet (9) in the bottom of the container (2). A defrost water container (5), Fig. 7 (not shown), is mounted in drawer-like fashion on brackets (4) below the shelf (3) and has an opening (10) in its top wall for receiving water from the outlet (9).
Patent GB-140172-A (GB)
Title: Improvements relating to sparking plugs for internal combustion motors
IPC: H01T13/46
Filed: 1919-02-15
Abstract: 140,172. Bonde, V. Feb. 15, 1919. Sparking-plugs.-The external casing is reduced as far as possible, and rotation between the casing and insulator is prevented by interengaging projections and recesses 6, or by balls or rods occupying corresponding grooves in the two parts. To promote cooling, the insulator is formed with a chamber 3 in communication with the atmosphere by passages 4.
Patent GB-377584-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J61/10
Filed: 1932-02-09
Abstract: 377,584. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Feb. 9, 1932, No. 3863. Convention date, Feb. 27, 1931. [Class 39 (i).] In tubes having hot electrodes of low work function and a filling of gas and metal vapour, the latter during operation assuming a pressure in excess of 30 mm., the discharge does not normally reach the walls of the tube, and to confine it further, one or more partitions 6 of molybdenum &c. with a central aperture 7, extend across the whole tube. The partitions may bear a resilient flanged rim 8 or may be sealed to the tube. Electrodes 2, heated by the discharge or directly or indirectly by heater windings, are surrounded by sleeves 9 having endplates 10 with apertures 11. The sleeves may be connected by leads 14 and resistances 13 to the corresponding electrodes, or by leads 16 and resistances 15 to the opposite ones to facilitate starting.
Patent GB-659429-A (GB)
Title: Improvements in gas heated water boilers
IPC: F24H9/20
Filed: 1949-02-12
Abstract: 659,429. Delivery and pressure-relieving arrangements for hot water boilers. LOMAX, W. Feb. 12. 1949, No. 3900. [Class 64(i)] In a gas-heated water storage heater with a cold-water inlet valve controlling hotwater delivery, a cap E screwed over an aperture in the top of the water-chamber A has a central recess e communicating with the water-chamber through a series of holes e<SP>1</SP>, and a second cap G screwed into the central recess has an aperture g<SP>2</SP> to atmosphere. A thin disc F in the second cap G below the aperture g<SP>2</SP> closes it when the pressure in the water-chamber is above atmospheric and moves away from it otherwise, the disc being made of material which breaks if the pressure in the water-chamber es excessive. A siphon is formed at the top of the delivery pipe C by a cap H supported by a transverse wire h.
Patent GB-762686-A (GB)
Title: Improvements relating to an electric wire fence
IPC: H01B5/10
Filed: 1954-02-11
Abstract: 762,686. Fencing. WOLSELEY ENGINEERING, Ltd. [formerly WOLSELEY SHEEP SHEARING MACHINE CO., Ltd.]. and DRAKE, R. S. April 14, 1955 [Feb. 11, 1954], No. 3994/54. Class 45. [Also in Group XXXVI] An electric fencing wire comprises a flexible dielectric line 1 on which two conductors 2, 3 are spacedly arranged throughout its length and retained thereon in light tension. The line 1 may be of polyvinyl chloride and may have two spiral grooves in which the conductors are located so that they stand proud of the line.
Patent GB-505938-A (GB)
Title: Improvements in or relating to the air cooling of radial cylinder internal combustion engines
IPC: F01P7/02
Filed: 1938-02-10
Abstract: 505,938. Cooling cylinders. ZARCES, W. Feb. 10, 1938, No. 4128. Convention date, Feb. 10. 1937. [Class 7 (ii)] Flap valves c at the rear of an engine cowling a are pivoted at the rear' and open inwards, so that when fully open, they lie along the line of cooling-air flow.
Patent GB-961502-A (GB)
Title: 17ª‡-butadiynyl-17ª‰-hydroxy steroids
Inventor: FEATHER PETER
IPC: A61K31/569
Filed: 1962-02-02
Abstract: The invention comprises 17a -butadiynyl-17b -hydroxy-steroids and their preparation by reacting the corresponding 17-oxo-steroids with a lithium, sodium, potassium, calcium or magnesium (including Grignard reagents) derivative of diacetylene and regenerating the desired steroid from the complex so formed. The reagent used is conveniently mono-sodio-butadiyne, prepared by treating 1,4-dichlorobut-2-yne in a refluxing solution of liquid ammonia with 3 molecular proportions of sodamide. The process may be applied to steroids containing unsaturated linkages at D 1, D 2, D 3, D 4, D 5(6), D 5(10), D 7, D 9(10), D 9(11) and D 11 and combinations of these, and to aromatic steroids, and these may contain halogen e.g. 2-chloro; hydroxyl and etherified hydroxyl e.g. at positions 2, 3, 4, 5, 6 and 11;alkyl, cycloalkyl, alkenyl, alkynyl and benzyl groups particularly in the A and B rings; oxo groups e.g. at positions 3, 4 or 6, which require protection by ketal, thioketal, enamine or enol ether formation and subsequent regeneration or by reduction and subsequent oxidation or at position 11; and 5, 6-epoxide groups. Aryloxy groups are hydrolysed during the process. 3-Oxo- D 4-derivatives of 19-nor-androstanes may be prepared by using oestra-2, 5(10)-dien-3-ol ethers as starting materials and warming the product with a mineral acid; by warming with oxalic acid a D 5(10) -3- one is obtained. Examples are given.  Specifications 811,961, 840,477, Belgian Specification 606,935, and U.S.A. Specifications 2,397,424, 2,397,425, 2,397,426 and 2,947,763 are referred to.
Patent GB-325681-A (GB)
Title: Improvements in or relating to electric lamp fittings
IPC: F21V19/02
Filed: 1929-02-08
Abstract: 325,681. Revo Electric Co., Ltd., and Reeves, F. H. Feb. 8, 1929. Street and like lamps; mounting electric lamps in lantern.-An electric street or like lamp comprises a head fitting b which carries a vertically adjustable electric lamp holder d and rods c which provide for the lowering of a body part a carrying two or more semi-parabolic or like reflectors f adjustably mounted laterally of the body part. The holder d is carried by a transverse bar d<1> adapted to slide along one rod c and to engage the screwed part e' of a complementary rod having an external adjusting member c<2>. The rods c are provided with screw sections c<2> adapted to co-operate with tapped apertures a<1> on the body part for holding the parts a, b together, and with heads c<3> upon which the body part is adapted to rest when lowered by rotation of adjusting thumb pieces c<1>. The lower edges of the reflectors f are pivoted at f<1> between skirt-like flanges a<2> on the body part, whilst their upper parts are provided with brackets f<2> having elongated slots f<3> adapted to co-operate with adjusting bolts f<4> carried by lugs a<3> on the body part. The reflectors, which may be made of vitreous enamel, glass, or the like, are independently adjustable so that one may be tilted upwards and the other downwards, and the slots and bolts may be replaced by toggles, screws, or other adjusting devices. Specification 283,385 is referred to.
Patent GB-104916-A (GB)
Title: Improvements in or relating to Wheels, specially applicable to Vehicles.
Inventor: KILLEN EDWARD BRICE
IPC: B60B5/04
Filed: 1916-03-22
Abstract: 104,916. Killen, E. B. March 22, 1916. Tyre attachments to rims. -The detachable half H' of a tyre-carrying rim is fitted with an angle-ring K which is secured to the felloe A by transverse bolts. The ring K may be replaced by brackets recessed into the felloe.
Patent GB-368488-A (GB)
Title: Improved means for straightening reticulated and like metal fabrics unwound from a roll
IPC: B21D1/02
Filed: 1931-02-11
Abstract: 368,488. Straightening metal fabrics. STIRLING, E. M., 8, Station Chambers, Peterborough. Feb. 11, 1931, No. 4276. [Class 83 (iv).] Reeling.-Reticulated metal fabric for reinforced concrete is straightened by mounting a roll of the fabric on the frame of a machine which carries an idle bending roll and a pair of driven rolls provided with teeth for feeding the fabric forward. The teeth may be arranged alternately to engage transverse members of the fabric. The axle t of the fabric roll s is carried in open bearings in a frame u, which may be moved about a pivot by a handle v for replacement purposes and held in operative position by a locking device w. The fabric passes between a pair of toothed rollers i, j driven by a chain &c. from hand-cranks l and an idle roller m adjusted by screws p in yokes o ; the roller m may have annular grooves for guiding the longitudinal elements of the fabric. The rolls are carried by a pair of channel members c, b secured to a pair of frame members a connected together by cross members, which may be detachable or folded so as to be disassembled or collapsed for transport purposes. The members a may be provided with claw feet and may also be made portable by the provision either of detachable wheels e or wheels which are movable in relation to the members so as to permit of raising and lowering the apparatus when required. The rollers may be detachable to suit fabric of different widths or pitch of mesh and for this purpose may be hollow to engage squared, octagonal or splined shafts.
Patent GB-846146-A (GB)
Title: Improvements relating to photographic objectives
IPC: G02B13/00
Filed: 1957-02-08
Abstract: 846,146. Photographic objectives. PERKINELMER CORPORATION. Feb. 8, 1957 [Feb. 10, 1956], No. 4345/57. Class 97(1) A corrected objective comprising two positive components one on each side of two negative meniscus components concave to a central stop, the positive components having an average index of refraction from 1À66 to 1À80, the first positive component being meniscus with its inner air surface concave and of dioptric power from - 0À2 to - 0À8, the rear positive component having a front air surface of dioptric power from - 0À3 to 0À4, the front negative component having a rear surface of a dioptric power from - 1À7 to - 2À8, the power of the front surface of the rear negative component being from - 1À0 to - 1À9 and having a movement value less than that of the said surface of the front negative component, all said dioptric powers assuming the focal length F of the objective to be unity, the central airspace lying between À16F and À27F and each negative component consisting of at least one positive lens and one negative lens which include an air lens, the highest refractive index of any positive lens in each negative component exceeding the lowest index of refraction of any negative lens of that component by at least À03 but less than À25. Numerical data are given for two examples of the objective shown and for one example in which the objective is combined with the field flattening lens shown. One or more of the lens surfaces may be aspherical at the periphery. Specification 641,293 is referred to.
Patent GB-215827-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02F3/00
Filed: 1923-02-14
Abstract: 215,827. Pamplin, A. J. Feb. 14, 1923. Pistons.-In a piston of the type in which the packing-rings are carried by an outer cylindrical member 2 fitting over an inner cylindrical member 3 which carries the gudgeon-pin, the heads of the attaching' screw or screws 14 are countersunk, the inner member is grooved to receive a split ring 9 covering the ends of the gudgeon pin and tools are provided for screwing into the holes in the part 2, after the removal of the screws 14, thus permitting withdrawal of the part 2.
Patent GB-164802-A (GB)
Title: Improvements in radiators for motor vehicles and in like apparatus for heating and cooling
IPC: F28F1/12
Filed: 1920-02-13
Abstract: 164,802. Jackson, F. H., and Symcox, E. J. Feb. 13, 1920. Plate apparatus.-A radiator is constructed with top and bottom headers and waterways moving between pairs of corrugated plates 2. Each plate has alternate deep and shallow corrugations 3, 4 with the ridges of the deep corrugations in one plate seating in shallow grooves 5 in the ridges of the shallow corrugations of the other plate. Spacing-strips 8 may be employed. Air spaces 7 may be of any configuration. In a modification shown in Fig. 7, the projections 3a fit into the grooves 5a alternately on each plate. Reference has been directed by the Comptroller to Specification 144,870.
Patent GB-704126-A (GB)
Title: Improvements in or relating to locking mechanism for lifting cords of, for example, blinds
IPC: E06B9/324
Filed: 1952-02-19
Abstract: 704,126. Lifting cords for blinds. AKTIESELSKABET C. FABERS FABRIKER. Feb. 19, 1952 [Feb. 21, 1951], No. 4418/52. Class 20 (3). [Also in Group XXV] A locking mechanism for a lifting cord 20 of a blind comprises a U-shaped bracket 10 and a wedging roller 24 mounted on a member 22 which is pivoted about an eccentric axis between the arms of the bracket 10, the arrangement being such that the wedging roller 24 revolves freely oii the member 22 in one direction but moves to wedge the cord against the base of the bracket when rotated in the other direction. The member 22 is pivoted on a pin 16 and has studs 26 which engage in curved slots 28 to limit the swinging movement of the member 22. A small cylinder or ball 32 is arranged in a recess 30 in the member 22 and acts in co-operation with the edge 34 of the recess to prevent the roller 24 rotating freely in (as shown) a clockwise direction. The cord is secured or released by moving it towards or away from the roller 24. In a modification the studs 26 and slots 28 are replaced by rollers against which the external periphery of the roller 24 abuts when the member 22 is in one or other of its extreme positions.
Patent GB-581819-A (GB)
Title: Arrangements for generating high voltage electric pulses
IPC: H03K3/37
Filed: 1944-03-10
Abstract: 581,819. Impulse generators. STANDARD TELEPHONES & CABLES, Ltd. March 10, 1944, No. 4541. Convention date, March 13, 1943. [Class 40 (v)] In a high potential pulse generator, one. or more low potential pulses are produced from an A.C. source and differentiated to produce a short triggering pulse which causes a device to conduct to generate the high potential pulse. The A.C. from transformer secondary 14, Fig. 1, supplies the anode of gasfilled valve 17 and provides grid bias over potentiometer R4 and phase-shifting network 27, 28. By varying resistance 27 and setting of potentiometer R4, valve 17 can be made to fire at any point in the second quarter of the A.C. cycle, the valve extinguishing as the anode potential falls. A pulse 10 is developed across resistance 40, a valve 12 being similarly connected and supplying a pulse in the fourth quadrant of the A.C. cycle. The pulse 10 is integrated over resistance condenser network 42, 43 to give a sweep potential and differentiated over condenser resistance network 46, 89 to provide a triggering impulse, the rapid rise and slow decay of pulse 10 resulting in a large but shortened positive pulse 60, followed by virtually no negative component. The leading edge of triggering pulse 60 is sloped backward by resistance condenser combination 90, 91 to delay slightly the firing point of the gas-filled tube 62 which is normally biassed off. Upon the valve 62 firing, a large flow of current in the primary of transformer 65 produces a pulse 100 on the secondary, the valve being extinguished rapidly due to the drop in the anode potential' caused by resistance 75, condenser 76 providing a low impedance path during the pulse. The pulse 100 may be used to synchronize a modulator of the type described in Specification 580,253. In a modification, Fig. 3 (not shown), phase shift for the grid of valve 11 is made by selection from a series of condensers 28. The pulse 10 is applied to a triode, biassed beyond cut-off and arranged when conducting to draw current through a low resistance across which the pulse is produced. In a further modification, Fig. 4, phaseshifting network 127, 128 is connected to potentiometer R2 so that valves 211 and 212 conduct in the first and third quadrants of the A.C. cycle respectively to form pulses 210. Gas-filled triode 262 is biassed by the potential drop across resistances R7, R8, alternate pulses 260a firing the tube to form a high potential pulse in the transformer secondary 267, valve 263 being similarly biassed and firing on the other pulse. In order to ensure the peak value of the A.C. supply coinciding with the triggering pulse, a phase-shifting condenser C3 is included in the supply to transformer 280. By employing a combination of circuits, of Figs. 1 and 4, pulses may be produced at any point in the cycle.
Patent GB-364894-A (GB)
Title: Improvements in or relating to workmen's and like clamps
IPC: B25B5/14
Filed: 1931-02-13
Abstract: 364,894. Clamps. BARNES, E., Newton Works, Eyre Street, Sheffield. Feb. 13, 1931, No. 4520. [Class 61 (ii).] In a workmen's or like clamp for holding articles of differing shapes comprising an arm pivoted to a base and adapted to grip the article against the base or against another pivoted arm, each arm consists of jointed sections and means are provided for limiting or resisting the movement of each section about its joint. The base 3 has pivots 4 for the arms which consist of sections 5, 10, 19 pivoted to each other at 11 and 20. The sections 5 have worm sectors 6 secured thereto which engage worms 7 on hand-wheel shafts 8 journalled in the base. Toothed quadrants 12 are attached to the sections 10 and co-operate with pawls 13 pivoted to the sections 5 at 14 and influenced by springs 15. Similarly, motions of the sections 19 are limited by spring pawls 21 thereon and ratchet quadrants 23 on the sections 10. The quadrants 12, 23 may be interchanged or both may be made the same. In operation, the arms are moved apart by the worms 7, the sections are adjusted about their pivots to suit the shape of the work, and are then caused to grip the article placed between them by operation of the worms 7. Each member of the device is of channel or hollow section to contain the adjusting devices and the pivots 4 may be made adjustable by forming the base 3 in two parts hinged to a holder, means being provided for locking the hinges. Cushioning material (not shown) may be provided on the gripping surfaces to prevent damage to the work and to obtain a good grip.
Patent GB-987906-A (GB)
Title: Improvements in or relating to cocks with spherical plugs
IPC: F16K5/20
Filed: 1962-02-06
Abstract: 987,906. Valves. BORSIG A.G., and W. HARTMANN. Feb. 6, 1962 [March 15, 1961], No. 4616/62. Heading F2V. A valve has a spherical plug 5 mounted by means of two bearing pins 6, 7 in a housing 1, packing rings 21 adapted to be displaced in the direction of the bore in the housing by guide rings 20, and cams 24 formed on the surface of the plug to enable the packing and guide rings to be pushed away from the plug when the latter is to be removed from the housing. A conical face 26 on the guide ring is engaged by tapered ends on a series of radial screws (not shown) to permit sealing pressure to be applied to the rings 21 which are mounted on bearing rings 19 backed by resilient rings 22. The housing is closed by covers 11, 14 bolted together at 15, axially located by a ring 12 and sealed by an 0-ring 16. To operate the plug, a spanner may be fitted to a square portion 8 of the pin 7 or an electric motor may be connected to the plug by gearing. A seal may be provided on the outer circumference of the ring 19, the seal 22 being replaced by a resilient body, and one end of each guide bush may have a helical edge to cooperate with a similar edge on a fixed bush, a locking screw being provided to secure the bush after sealing pressure has been adjusted. Alternatively, an oblique edge on the bush may cooperate with a flat face on a radial pin (not shown). In Fig. 9, sealing pressure is applied by inserting a yoke 52 with tapered ends 54 between a collar 51 on the guide bush and a wall 56 of the housing. Removal of the yoke is facilitated by an eyelet 55.
Patent GB-105250-A (GB)
Title: Improvements in Valve Mechanism for Internal Combustion Engines.
Inventor: HADDAN REGINALD
IPC: F01L5/04
Filed: 1916-03-30
Abstract: 105,250. Haddan, R., (Osborn Foreign Patents Co.). March 30, 1916. Valves. - The charge is admitted through a port 56 uncovered by the piston at about half-outstroke, the port being closed by the sleeve valve 43 at the end of the stroke. The exhaust port 54 is uncovered by the end of the valve 43, which is always subject to the pressure in the cylinder. A piston - valve in a separate casing may replace the sleeve valve.
Patent GB-571076-A (GB)
Title: Tucker blade motion for rotary folding mechanisms
IPC: B65H45/16
Filed: 1944-03-14
Abstract: 571,076. Folding paper. HADDAN, R. (Duplex Printing Press Co.). March 14, 1944. No. 4725. [Class 100 (i)] In a rotary paper folding-machine in which the blades P, Fig. 2, 19, Fig. 4, are driven by a gear 18 engaging a gear wheel 15, Fig. 3, freely mounted on the shaft 3 of the folding cylinder 2 so as to cause the tips of the blades to move in the repetitive path T, Fig. 2, or in a similar path having four cusps instead of three, the gear wheel 15 is driven from a gear 5 on the shaft 3 by means of a gear 12 on the shaft 11a of one of the folding rolls, and an idle gear 13 engaging a gear 14 integral with the gear 15. The cylinder 2 is driven by bevel gearing from a shaft 8, and coacts with a cutting-cylinder 1, and the folding rollers 11, 11b are driven by a gear 9 which engages the gear 5. Specification 24031/08, [Class 100] is referred to.