baber/WOPTO huggingface dataset:
Patent GB-600672-A (GB)
Title: Improvements in thread cutting devices in lathes
IPC: B23G1/02
Filed: 1945-06-12
Abstract: 600,672. Lathes. SOC. CRI-DAN. June 12, 1945, No. 14915. Convention date, April 7, 1941. [Class 83 (iii)] A screw-cutting device for lathes, in which the tool is automatically given a transverse advance after each stroke, comprises a cam with an increasing profile driven progressively by means of a pawl and ratchet wheel, the pawl being rendered inoperative after the final stroke by an abutment arranged coaxially with the cam and the ratchet wheel, the cam and the abutment being angularly adjustable relative to the ratchet wheel. A cutting tool 2 operating on work 3 is carried by a cross slide 1 traversed longitudinally by a cam 6, Fig. 2, engaging a roller 8 on a spring-returned rod 5 secured to the longitudinal carriage. The cross-slide is pulled in a direction away from the work by a spring 4 which maintains a button 14 against a flat plate 15 provided on a rockable member 20. The button 14 is carried by an axially adjustable screw 12 in an angularly adjustable holder 11 rocked by a screw and rack segment to raise or lower the button relative to the plate, thus adjusting the amplitude of motion of the tool received from the plate movement. The rockable member 20 is pivoted at 21 to the arm of a bell-crank lever 25, 26, pivoted at 24. The other arm 26 of this lever receives rocking motion from a cam 28, driven in timed relation with the work, to withdraw the tool from cut at the end of a cutting stroke and re-apply it at each new cutting stroke. Additional stepped feed movements of decreasing amount are applied at each new cut to the rockable member 20 by a cam 23 also arranged on the axis 24 and contacting a roller 22 on the rockable member. The cam is integral with a worm wheel 44, Fig. 5, and arranged on the same axis are, a ratchet wheel 33 integral with a member 29, and a stop member 46 integral with a worm wheel 45. The worm wheels are engaged by adjustable screws 40, 41 rotatable in lugs carried by the member 29 thus rendering cam, ratchet wheel, and stop member 46, relatively angularly adjustable. A spiral spring 30 forces the arm 29 against a stop 31, Fig. 1, at the start of a cutting operation and a pawl 34 carried by the lever 26 rotates the ratchet wheel and cam step by step at each cutting stroke until the stop member 46 strikes a lever 47 which releases the shaped end 52 of a bellcrank lever 53 pivoted at 54 and adapted to be pulled clockwise by a spring 55. The lever 53 strikes the ends 56, 57 of the ratchet pawls to release the ratchet and member 29 which are thus returned to the starting position. The lever 53 also stops the machine through mechanism not described. The operative face of the plate 15 may be inclined to the axis of the work for cutting a tapered thread.
Patent GB-747736-A (GB)
Title: Improvements in or relating to devices comprising a circuit of highly-permeable material and a permanent magnet for producing a pre-magnetizing field in said circuit
IPC: H01F7/02
Filed: 1953-05-29
Abstract: 747,736. Transformers and inductors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 29, 1953 [June 3, 1952], No. 15000/53. Class 38 (2). Electromagnetic-apparatus such as a pulse transformer, a radio output transformer or a choke in an ignition system comprises a winding on a magnetic core of high permeability in which there is a gap, short compared with the dimensions of its crosssection containing a non- conductive permanent magnet which fills only, but at least half, the crosssectional area, and is magnetized in the direction of its smallest dimension. The permanent magnet has been strongly magnetized and only partly demagnetized and has such other characteristics that the core operates cyclically from saturation in one direction, produced by the permanent magnet when the current in the winding is zero, to saturation in the other produced by current in the winding, the flux passing through the gap where unfilled, its value through the permanent magnet being reduced to zero. Suitable material is that forming the subject of Specification 747,724. In one construction windings 5, 6 are carried on a core of two U-shaped parts of high permeability which have overlapping ends 7, 8 between which is the gap 9, partly filled by the magnet. In a modification gaps partially filled with the permanent magnets are located between end plates on a U-shaped core and another plate completing the circuit, Fig. 4 (not shown). In a shell core with a central stem, the gap is provided between the outer flanges of the two core halves, Fig. 5 (not shown).
Patent GB-238044-A (GB)
Title: Improvement in pickers for looms for weaving
IPC: D03D49/36
Filed: 1924-06-23
Abstract: 238,044. Pierpoint & Bryant, Ltd., and Stansfield, J. B. June 23, 1924. Pickers.-A picker is made from two pieces of hide &c., one A is T-shaped with corners cut out at a and inclined edges a<1>, the second B is rectangular and about the same width as but slightly longer than the leg of the piece A. The two parts are laid on one another and folded first as shown in Fig. 4, then the sides are rolled up as shown in Fig. 5, and secured by a staple d, Fig. 8, and the whole pressed to shape. The spindle holes d<1> and the inclined strap holes c<1> are then formed.
Patent GB-285706-A (GB)
Title: Direction indicators for road motor vehicles
IPC: B60Q1/34
Filed: 1927-06-07
Abstract: 285,706. Morris, J. L. June 7, 1927. Road-traffic signals on vehicles.-A direction signalling device for motors comprises two internally illuminated signs in the form of hands concealed behind spring-pressed doors, the hand on the left being slid outwards into position to indicate a left turn by means of its knob A which contacts with a stop B, while the hand on the right is slid outwards by its knob F to indicate a turn to the right, and then swung into a vertical position to indicate "straight on." The stops are arranged to complete the electric circuit for the lamps inside the hands.
Patent GB-529136-A (GB)
Title: Improvements in or relating to contact structures for electric circuit breakers
IPC: H01H33/12
Filed: 1939-05-23
Abstract: 529,136. Air-break switches ; contact-members for switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 23, 1939, No. 15271. Convention date, May 31, 1938. [Class 38 (v)] A contact-arm 31, when closed, bridges contacts 19, 21, the latter having an extension 25 between the limbs of which is pivoted at 41 a yoke-shaped switch-member 29. A pin 47 interconnecting the limbs 33 of member 29 takes in a slot 65 in the contact-arm 31, and serves also as pivot for the yoke-shaped end 45 of an insulating rod 43, which is connected to a crank 49 on a squared part of a shaft 51 on which is also mounted an arm 57 connected to operating mechanism (not shown). The contact-pressure is imparted by a spring system 69 comprising concentric springs compressed between the arm 31 and member 29. When the mechanism is tripped and the opening spring (not shown) moves rod 43 to the right, pin 47 first moves to the end of slot 65 and then rotates arm 31 so that the upper contact 59 thereon rolls on contact 19 and causes engagement between arcing-tips 23, 63. During this movement, the lower contact 61 on the arm 31 disengages contact 21, the circuit being still made, however, by a flexible conductor 83. When the arm 31 engages the stop 81 in member 29, the two rotate together about pivot 41 and separate the arcing-tips. Since connection 83 is only operative during the opening and closing movements, it need only be of small section.
Patent GB-674963-A (GB)
Title: Improvements in or relating to portable containers for toilet and like accessories
IPC: A45D33/32
Filed: 1949-06-08
Abstract: 674,963. Boxes. KESTREL ENGIN EERING CO., Ltd.; and HOBBS, J. R July 10, 1950. [June 8, 1949]. No. 15282, 49. Class 18. A box for toilet requisites has a lid incorporating a mirror 9, the lid being so disposed when open to reflect light emanating from a source to illuminate a user's face. The source of light is provided by a bulb mounted in an end wall 3 which is connected to a battery in the box. The bulb is positioned so that its light is directed outwardly of the box and so that when the lid is closed it can be used as a torch. The lid may be hinged to the box about the same wall as that in which the bulb is positioned, having the mirror disposed on its inner face. The lid may have brackets 10 which pivotally engage the box or it may have a right angle bracket or brackets which pivot about the lower edge of the end wall of the box. Alternatively pivot pins 12 in the end of the lid may slide in slots 13 in lugs 14 on the box.
Patent GB-583204-A (GB)
Title: Improvements in or relating to pressure gauges
IPC: G01L7/04
Filed: 1944-08-11
Abstract: 583,204. Pressure gauges. GRANT, C. R. A. Aug. 11, 1944, No. 15290. [Class 106 (ii)] A pressure gauge comprises two elements, one for measuring pressures above atmospheric and the other for measuring vacua, both elements being connected to a post containing a valve which, when a pressure above atmospheric is applied, closes the inlet to the element measuring vacua, the valve opening this inlet when a pressure below atmospheric obtains in the post. As applied to a Bourdon-tube gauge, the vacua-measuring tube 4 and the other tube 5 are fixed to a hollow post 1 connected to the pressure inlet. A valve 9 slides in the post to close the entrance 8 to the vacuameasuring tube 4 when a pressure above atmosperic is applied, this pressure, however, being communicated to the other measuring tube 5 through channels 16 in the end of the valve. Each tube 4, 5 is connected to its respective pointer 18, 17 by known mechanism 29, 30. A stop 34 prevents movement of the above atmospheric pressure pointer 17 when a vacuum is applied. Alternatively, a lost-motion connection may be provided in the mechanism 29. A second stop 34 may also be arranged to prevent retrograde movement of the vacuumindicating pointer 18. Specification 507,666 is referred to.
Patent GB-153237-A (GB)
Abstract: 153,237. Laupitz, R. Sept. 11, 1919. Transfer mechanism. -In a key-set, independently-operated adding and subtracting machine a transfer mechanism allowing transfers in either direction comprises a frame 6 reciprocated on a guiding projection 18 by a finger 12 and bell-crank 9 at each operation of the machine, and provided with an upper and a lower tooth 4, 5 co-operating with a pinion 7 on the corresponding numeral wheel 1. Normally the frame reciprocates without engaging the pinion, but when a transfer pin 23 on the next lower numeral wheel engages a lug 24 on a notched disk 19 held by a spring detent 21, the projection 18 carried on by the disk tilts the frame up or down so that one of its teeth 4, 5 rotates the pinion in one or other direction when the frame reciprocates. In the return movement of the frame, due to a spring 8, the engaged tooth wipes over the next tooth of the pinion and restores the frame and the disk 19 to normal position.
Patent GB-794487-A (GB)
Title: Steroid compounds and process for their production
IPC: C07J75/00
Filed: 1956-05-17
Abstract: 794,487. Steroids. UPJOHN CO. May 17, 1956 [May 23, 1955], No. 15419/56. Class 2 (3). The invention comprises compounds of the general formula. and 21-lower acyloxy esters thereof, wherein the acyl radical is that of a hydrocarbon carboxylic acid containing from 1-12 carbon atoms and lower alkyl contains 1-8 carbon atoms, and the production thereof by oxidatively hydroxylating an 11α - lower alkyl - 11#, 21 - dihydroxy - 4,17(2) - pregnadien - 3 - one or a 21 - ester thereof with osmium tetroxide and an oxidizing agent, e.g. hydrogen peroxide, peracids, alkyl peroxides, and amine oxide peroxides. Preferably 2-3 molar equivalents of the oxidizing agent are used together with less than 0.05 molar equivalent of osmium tetroxide calculated on the starting steroid in tertiary-butyl alcohol at about room temperature. The 11α-lower alkyl- 11#,21 - dihydroxy - 4,17(20) - pregnadien - 3 - one or 21-ester thereof is obtained by alkylating a 3-cyclic ketal or 3-enol ether of a 21-hydrocarbonoxy - 5,17(20) - pregnadiene - 3,11 - dione with a lower alkyl lithium to produce the corresponding 11α-alkyl compound, hydrolysing the 3-keto protected group and esterifying with a hydrocarbon carboxylic acid containing 1-12 carbon atoms. As alkylating agents there may be used methyl, ethyl, propyl, butyl, amyl, hexyl, heptyl, or octyl lithium. Hydrolysis may be effected with aqueous hydrochloric or sulphuric acids. Examples describe the preparation of the 3-ethylene glycol ketal of 11α- methyl - 11# - hydroxy - 21 - triphenylmethoxy- 5,17(20) - [cis] - pregnadien - 3 - one, 11α - methyl - 11#,21 - dihydroxy - 4,17(20) - [cis] - pregnadien - 3 - one, 11 - # - hydroxy - 11α - methyl - 21 - acetoxy - 4,17(20) - [cis] - pregnadien-3-one and other 21-esters thereof; 11α- methyl - 11#,17α - dihydroxy - 21 - acetoxy - 4 - pregnene - 3,20 - dione, and 11α - methyl - 11#,17α,21 - trihydroxy - 4 - pregnene - 3,20 - dione. 21 - Hydroxy - 5,17(20) - pregnadiene - 3,11-dione is obtained by ketalizing a 21-acyloxy - 4,17(20) - pregnadiene - 3,20 - dione and subsequently hydrolysing the 21-acyloxy group. Specifications 749,201 and 794,485 are referred to.
Patent GB-822351-A (GB)
Title: New quaternary salts and their production
IPC: C07D213/82
Filed: 1956-05-17
Abstract: The invention comprises quaternary salts of the formula <FORM:0822351/IV (a)/1> in which Am represents an amido group optionally substituted by an aliphatic, araliphatic or aromatic hydrocarbon residue, wherein the araliphatic or aromatic residue may bear halogen and/or trifluoromethyl substituents, Y is an anion, R1 is an aliphatic radical of 1-3 carbon atoms, X is oxygen or the -NH-group and R2 is an aliphatic radical or an aromatic or araliphatic radical optionally bearing halogen and/or trifluoromethyl substituents.  The compounds are prepared by (1) treating the corresponding nicotinic acid amide with an ester of a strong acid and an hydroxycarboxylic acid ester or amide such as a halogen-paraffin carboxylic acid ester or amide; (2) treating a nicotinic acid amide with a ring destabilizing agent such as dinitrochloro-benzene, cyanogen chloride or cyanogen bromide and treating the resulting adducts with amino-paraffin carboxylic acid esters or amides; (3) treating the Schiff's bases of glutaconic dialdehydes and aminocarboxylic esters or amides with ring closing agents such as hydrochloric acid in the absence of water to produce the desired quaternary salts; (4) treating a betaine of the formula <FORM:0822351/IV (a)/2> with an alcohol or amine containing the residue R2 and converting the pyridinium hydroxide obtained into a salt; (5) converting the appropriate quaternary salt of nicotinic acid into its amide by known methods for converting a carboxylic acid into its amide and (6) reacting a carbamyl halide AmCOHal or an isocyanate Am=C=O with a quaternary salt of nicotinic acid. Examples describe the preparation of N1 - carbodecyloxymethyl-, N1 - carbohexyl-oxymethyl -, N1 - carbododecyloxymethyl -, N1 - (N1 - dodecylcarbamoyl) - methyl -, N1 - (N1 - p - chlorophenylcarbamoyl) - methyl -, N1-a  - (N1 - undecylcarbamoyl) - ethyl and N1 - (N1-[4 - chloro - 3 - trifluoromethyl - phenyl] - N1 - methyl - carbamoyl) - methyl -, 3 - carbamoyl pyridinium salts and the 3-(p-chlorophenyl - carbamoyl) - 1 - carbododecyloxy - methyl -, 3 - (dodecyl - carbamoyl) - 1 - carbo - (p - chlorophenyl) - oxy - methyl -, 3 - (allyl - carbamoyl) - 1 - carbohexyloxy - methyl -, 3 - (p - acetoacetylamino - phenyl - carbamoyl) - 1 - carbododecyloxy - methyl - and 3 - (m - trifluoromethyl - p - chloro - phenyl) - carbamoyl - 1 - undecyl - carbamoyl - methyl -, pyridinium quaternary salts.  3 - Carbamoyl - 1 - (2:4 - dinitrophenyl) - pyridinium chloride is made by treating nicotinamide with 2:4-dinitro-chloro-benzene.
Patent GB-584689-A (GB)
Title: Improvements in or relating to machines for treating materials with dyes and other liquids
IPC: D06B5/20
Filed: 1944-08-14
Abstract: In a dyeing or liquid-treating apparatus the dye or other liquid is circulated uni-directionally by an impelling means p  driven by an electric motor provided with a control mechanism automatically operable periodically either to switch the current off and on, or reduce the current so as to slow the motor down, or to reverse the motor, suchwise that the unidirectional circulation of the liquid is variable or/and intermittent.  A treating bath 1, Fig. 1, divided by a vertical partition 2, contains a <PICT:0584689/IV/1> propeller 4, driven by an electric motor through a belt 10 and a pulley 9.  The liquid is circulated up through the smaller compartment, over the partition 2, and down through hanks h of the materials to be treated, supported within the larger compartment. The flow is rendered variable in strength by a separate electric motor which drives a cam mechanism which operates switches controlling the propeller motor. When hanks of wool are treated the propeller motor is driven for periods of 2 1/2 minutes, alternating with intervals of 5 seconds during which the motor is slowed down by switching off the current supplying it.  In treating cotton hanks the propeller motor is driven for periods of 2 1/2 minutes, alternating with intervals during which the motor is reversed for 5 seconds, the duration of the latter intervals being insufficient for the reversal of the flow of the treating liquid.
Patent GB-898818-A (GB)
Title: Improvements in and relating to baling presses
IPC: A01F15/08
Filed: 1960-05-03
Abstract: 898,818. Baling-presses. WELGER, O., and WELGER, K. [trading as WELGER GEBR.]. May 3, 1960 [July 13, 1959], No. 15506/60. Class 94(1). A device for use on a baler in which hay or straw is compressed in an open-ended chamber A between a periodically reciprocated plunger 1 and the preceding bale, and intended to keep the filling inlet F of the chamber A free from the ties, is characterized in that the ties, stretched between needles 8 and a tying device B are moved by a member 10 into a position Y outside the filling range of the filling inlet F extending with its boundary knife edge 31 as far as the front dead centre position TIV of the plunger 1. The shaft 3 of the tying device B rigidly connected to a crank 4 causes the needles 8 to pivot about a shaft 7 and the rod or member 10 to move the ties through the linkages shown. The member 10 slides in slots 28 in bars 27 secured to the floor 25 of the passage A. The shaft 3 is driven by the plunger 1 which carries a knife 2. When the crank pin 5 moves from position BI to BII the needle points S move from SI to SII and the member 10 from DI to DII to allow the needles 8 to pass through recesses 26. The piston 1 reaches the position TIV when the pin 5 is at BIV. When the pin 5 returns to BI the needle points S return to SII so that the member 10 in returning to DI can move the ties, extending between knotters K of the device B and the points S, from the position X to the position Y to clear the opening F to enable material to be introduced therein without displacing the ties of wire or twine.
Patent GB-1480710-A (GB)
Title: Control of a machine tool
IPC: G05B19/41
Filed: 1975-04-16
Abstract: 1480710 Machine tool control SIEMENS AG 16 April 1975 [16 April 1974] 15761/75 Heading G3N A digital computer is programmed to cause a machine tool, e.g. a cutter or flame cutter, to follow a contour K with a predetermined offset #r. At a contour change, e.g. An, the computer calculates the intersections of the offset paths S' n-1  and S n ' to determine the intersection point at which the tool changes direction. When a straight contour section S n  intersects a curved section S n+  1  there are two possible intersection points A' n+1  and A" n+1  at distances d 1  and d 2  respectively from point A n+1 . The computer takes the intersection point having the least distance, i.e. d 1 , to control the tool.
Patent GB-374257-A (GB)
Title: Improvements in and connected with surgical trusses
IPC: A61F5/30
Filed: 1931-05-29
Abstract: 374,257. Trusses. BIRD, A. W. J., 377, Ivydale Road, Peckham, and BROOKS APPLIANCE CO., Ltd., 80, Chancery Lane, both in London. May 29, 1931, No. 15779. [Class 81 (ii).] In a surgical truss wherein the pad is free to slide on the body belt, two loops 4a, 4b are provided on the pad 1 to accommodate belts 13, 14 of different widths. The foundation member 2 of the pad 1 is slit along the two lines 15 to form the loop 4a, one end of this loop being cut along line 16 to produce an opening to receive one end of the outer loop 4b. The other end of the loop 4b is inserted in a slit 17 and secured by stitching. The loop 4a is sewn at its free end to loop 4b and the edge of the out 16.
Patent GB-1421751-A (GB)
Title: Machine tool spindle assembly
IPC: F16C39/04
Filed: 1972-04-06
Abstract: 1421751 Mounting spindles BONEHAM & TURNER Ltd 16 March 1973 [6 April 1972] 15867/72 Heading B3B [Also in Division F2] A machine tool spindle assembly comprises at least one bearing assembly 9a-9d for rotatably supporting the spindle 12 in a housing 11, the bearing assembly being capable of accommodating axial and radial thrust loads, and fluid pressure operated means capable of applying an axial loading to the spindle to oppose thrust applied to the bearing assembly. In operation, fluid supplied through ducts 42, 43 to chambers 28, 31 causes the spindle to move to the right (as seen in Fig. 1), and fluid supplied through ducts 41 to chamber 27 causes the spindle to move to the left. Excess fluid drains through ducts 44-46. The bearing assembly may comprise angular contact ball bearings, or axial and radial cylindrical roller bearings. The spindle is also supported by a further bearing.8, the outer or inner races of which can be preloaded by means of coiled springs 70 contained within bores 62, or alternatively by fluid operated pistons 66 in bores 65.
Patent GB-113419-A (GB)
Title: An Improved Device for Securing Carpets.
Inventor: HAYLLAR FRANK HAYLLAR
IPC: A47G27/04
Filed: 1917-10-31
Abstract: 113,419. Hayllar, F. H. Oct. 31, 1917. Pins, carpet; spiked plates.-A device for securing carpets comprises a metal plate with pointed round prongs c at one end, a hole for a securing-nail, or a pointed tongue, in the middle, and an extension c for holding the device and pulling the carpet taut. The pronged part may be bent as shown at h, Fig. 5.
Patent GB-1422008-A (GB)
Title: Drawer units
IPC: G11B23/023
Filed: 1973-04-05
Abstract: 1422008 Latches I D N INVENTIONS & DEVELOPMENT OF NOVELTIES A.G. 5 April 1973 [18 April 1972] 15892/73 Heading E2A [Also in Division A4] A drawer unit comprises a drawer 1 mounted in a frame 2 and biassed by a spring 5 towards its open position and includes a catch mechanism 3, 4, 8 which releasably retains the drawer in the closed position and is released by an initial movement of the drawer in a direction away from the open position. The catch mechanism includes a projection 8 upstanding from a rear extension flange of the drawer and having a front face providing a detent which is detachably engaged by a U- shaped, pivoted lever biassed clockwise (as shown) by a tension spring. The drawer extension carries a pivoted cam 4 with an inclined rear face which lifts the lever 3 out of the detent when the drawer is initially moved rearwardly.
Patent GB-286938-A (GB)
Title: Improvements in or relating to apparatus for the production of foam for fire extinguishing purposes
IPC: B01F5/04
Filed: 1927-06-15
Abstract: 286,938. Excelsior Feuerl÷schgerõte Akt.-Ges. April 2, 1927, [Convention date]. Fire-extinguishing by foam.-An apparatus for forming foam by adding foam chemicals to a stream of water comprises a hopper a from which the chemicals pass by a valve b to a pipe e. Around the lower part of the latter is an annular pipe f supplied with water under pressure by a pipe c and formed with jetnozzles g arranged obliquely so that jets of water i, intersecting at different levels, sweep the whole area. of the pipe e, or its continuation h, taking up the chemicals as they fall from the hopper and forming foam. The latter passes direct to the foam delivery conduit, or may pass first to a combined mixing chamber and air vessel.