baber/WOPTO huggingface dataset:
Patent GB-892335-A (GB)
Title: Electric motor speed regulating device
Inventor: SIDELL PHILIP A
IPC: H01H35/10
Filed: 1958-05-12
Abstract: 892,335. Electric motors. KINDAR CORPORATION. May 12, 1958, No. 15191/58. Class 35. In a speed-controlled commutator motor in which a centrifugal switch 18, 19 disconnects one of the armature coils 14 from its commutator segment 16, complete interruption of the motor current by the switch is provided by another discontinuity in the armature winding at the opposite side of the armature. This is achieved by providing the armature with one more commutator segment than there are armature coils 14, two of the segments opposite the switch being unconnected except perhaps for a resistor 32. In the form shown having six armature coils, the discontinuity occurs between two half-sized segments 16, but in a modification in which electrical balance is sacrificed, seven equal segments are used. When the centrifugal switch is closed, current passes alternately through each half of the armature winding, but when the centrifugal switch opens there is no path through the armature. The switch may be shunted by a resistor 31, and is mounted on an insulating carrier mounted on the commutator.
Patent GB-496578-A (GB)
Title: Improvements in or relating to the securing of sash cords in sliding sash windows
IPC: E05D13/00
Filed: 1937-06-01
Abstract: 496,578. Sash - cord attachments. CHAPPELL, D. J. June 1, 1937, Nos. 15243 and 21236. [Class 20 (iii)] A sash cord is attached to a rigid anchoring strip placed at the bottom of a groove in the outer face of the sash stile, the lower end of the strip passing behind an abutment positioned in the groove so as to be retained against outward displacement but to be capable of sliding downwardly, and the upper end being engaged by a member which retains said end against both outward and upward displacement, except upon first sliding said strip downwardly. In one construction, the lower end of the anchoring strip 3, Fig. 1, to which the end of the sash cord 19 is attached, is passed between the bottom of the groove 2 in the sash stile and a screw 4 extending through the side walls of the groove, the upper portion 5 of the strip being of reduced width and engaging in a U-shaped staple 6 secured in the base of the groove 2. In one modification, Fig. 8, the lower end of the strip 3 engages behind an upturned tongue 30 at the lower end of a strip 31 secured to the bottom of the groove 2, the upper end of the strip 3 being formed with a keyhole slot 34 which engages with a headed pin 33 at the upper end of the strip 31. According to further modifications, the upper end of the strip 31 may be bent over into a hooked formation, an aperture being formed therein to receive the end of the anchoring strip 3 which is of reduced width, while the lower end of the anchoring strip may be formed with lateral projections which engage in undercut portions of the side walls of the groove 2. The cord may be secured to the anchoring strip by means of nuts and bolts, rivets, or staples, or the anchoring strip may be formed with laterally-extending finger portions which are bent over and pressed into the cord. Alternatively, the lower end of the anchoring strip may be provided with a projecting lug, formed with a hole through which the end of the cord is passed, suitable means being provided at the end of the cord to prevent its withdrawal through the hole.
Patent GB-922575-A (GB)
Title: Spring take-up device
IPC: H02N2/00
Filed: 1961-04-27
Abstract: 922,575. Piezo-electric generators. CLEVITE CORPORATION. April 27, 1961 [May 3, 1960], No. 15257/61. Class 35. [Also in Group XXVI] A device for automatically taking up slack, due e.g. to wear, wide manufacturing tolerances, differential expansion &c. between the parts of a pietzo-electric ignition unit so that -the voltage output of the spark source remains substantially constant comprises a tightly, wound spring 40 which applies a tightening bias upon a screw 35 after the latter has been adjusted to provide an initial compression upon piezo-electric elements 16, 16. The latter, made of polycrystalline ceramic material for longitudinal compression, e.g. barium titanate, are mounted with sleeves 25 in a bore in an insulating member 15 which is accommodated within a rigid metal housing consisting of a base plate 10 and a frame 12. The insulating member 15 has a portion 15<SP>1</SP> which projects through an opening 18 in the frame 12 and has thread holes 19 to facilitate mounting and a bore 20 into which a high-tension lead 21 extends. Spacer discs 28, 28 at the inner ends of the elements 16, 16 make electrical contact with the lead 21 outer spacer discs 29 being in electrical contact with the base plate 10 respectively through an end plate 30 and a pivot member 50 and a co-operating actuating lever 57. The screw 35 passes through a hole 33 in the frame 12 and a threaded nut 31 to bear against the corresponding end plate 30. The spring 40, with its ends 41, 42 in engagement respectively with the base plate 10 and a slot in the head of the screw 35, is located within a casing 44 which limits the unwinding of the outer convolutions of the spring 40. Before installation the lever 51 is held, between the pivot member 50 and a hinge pin 52 by a screw 55, Fig. 3, the latter being removed when the unit is fitted to an eccentric actuating mechanism 60 which works against the lever 51 to periodically compress the elements 16, 16 and provide a high voltage charge which is discharged through the lead 21. The end plate 30, as shown in Fig. 3, is cast into the insulator support 15 and the nut 31 is omitted the screw 35 threadedly engaging the hole 33 in the frame 12.
Patent GB-713710-A (GB)
Title: Improvements in or relating to refractory carbon articles
IPC: C04B35/52
Filed: 1952-06-17
Abstract: A refractory article comprises a carbon body of density 0.7 to 1.1 grams per cubic centimetre and having on its surface only, or on preselected surface areas only, an integral layer of silicon carbide. The layer is of uniform thickness, and contains silicon or silicon rich material between the crystals of silicon carbide. The carbon body is obtained by reaction between furfural, furfuryl alcohol or mixtures thereof with sulphuric or hydrochloric acid in proportion, by volume, of 65 to 80, to 35 to 20, of acid.  A finely divided carbon filler may also be present.  The body is heated at above 1800 DEG  C. in contact with molten silicon or silicon vapour.
Patent GB-369471-A (GB)
Title: Improvements in method of making bleaching powder and apparatus therefor
IPC: C01B11/06
Filed: 1931-05-23
Abstract: <PICT:0369471/III/1> In the manufacture of bleaching powder, well distributed particles of calcium hydrate falling continuously through a relatively high tower 5 are treated with chlorine introduced at 10, and the chlorinated product is discharged intermittently or continuously from the base of the tower.  The initial material may be distributed by an oscillating sieve 6, and the bleaching powder be collected beneath a water cooled hood 11 below which is a spaced floor 12 also water cooled.  Discharge of the product is effected by rotary vanes or paddles 14, 15 through the space between the hood and the floor, thereby sealing the chamber against leakage of chlorine.
Patent GB-543683-A (GB)
Title: Improvements in or relating to permanent magnets for electrical measuring instruments
IPC: G01R11/10
Filed: 1940-10-18
Abstract: 543,683. Permanent magnets. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Oct. 18, 1940, No. 15431. Convention date, Nov. 4, 1939. Drawings to Specification. [Class 35] A permanent magnet, suitable for the brake magnet of an induction-motor meter, is shielded against fluctuating magnetic fields by a coating of conductive material, such as copper, applied by electrodeposition, the coating being at least onethousandth of an inch thick, for example between seven and twenty-thousandths, and preferably averaging fifteen thousandths. The formed magnet is cleaned and dipped in sulphuric or hydrochloric acid before plating. If the latter operation is carried out for several hours at a temperature of 175‹ F, the magnet is aged at the same time. The pole tips may or may not be covered with a deposit, and in the latter case a layer of resistant material such as rubber, wax or asphalt, is placed over them during plating and subsequently removed. Silver also is referred to as plating material.
Patent GB-508907-A (GB)
Title: Improvements in or relating to springs
IPC: F16F1/26
Filed: 1938-05-24
Abstract: 508,907. Laminated springs. LLOYD, F., and IBBOTSON BROS. & CO., Ltd. May 24, 1938, No. 15518. [Class 108 (iii)] [Also in Group XXII] The eye in the top plate of a laminated spring is formed by turning over the end of the plate and welding it to the plate. In the Figure, the top plate 11 is turned over to form an eye 13 and the reduced end 14, which may be recessed at 16 to provide a gradual change in cross-section, is welded by electric or acetylene welding along the top plate. The V-shaped recess 15 may be filled with a V- shaped piece of metal welded in position or may be filled up with welding metal.
Patent GB-696288-A (GB)
Title: Improvements in and relating to document filing apparatus
IPC: B42F15/04
Filed: 1950-06-22
Abstract: 696,288. Filing papers. BECKER, O. A. June 22, 1950. No. 15640/50. Class 146 (i). In a document filing device comprising rigid side walls suspended from and movable along an upper supporting frame and connected by bottom walls to form filing compartments, the bottom walls are adjustable to vary the filing capacity of each compartment and means are provided to hold the side walls against closure movement towards each other. A carrier frame 2 is provided in a cabinet or the like and rollers 3 at the end of pivot rods 7 support pairs of rigid side walls 4 or single walls 16. As in Fig. 2, a telescopic bottom comprises members 5, 6 having channel-like sides 5<SP>1</SP>, 6<SP>1</SP> interfitting and provided with hooks 8 by which they are secured through holes 9 in the side walls 4, expansion being limited by stops or lugs. In a modification, Fig. 4, different width bottoms 5 are secured by hooks 8 to the sides 4, such bottoms also being provided with slots 12 for the reception of tongues or partition members. As in Fig. 8, the single walls 16 are provided with attachment strips 18 at each side, interchangeable flexible bottoms 17 being provided with reinforcing strips 19 to engage the strips 18. The pivot rods 7 are provided with lugs or cam members 14 each having a point to engage a rack 15 on the frame 2, the pivot rod 7 passing over the point of contact of the member 14 when the file is opened so that the file cannot then close-of its own a,ccord. Apertures 20 are provided in the rigid members to facilitate handling.
Patent GB-1007439-A (GB)
Title: A collapsible ladder
IPC: E06C1/32
Filed: 1962-04-25
Abstract: 1,007,439. Scaffolding. G. WENGER. April 25, 1962 [May 3, 1961; June 30, 1961; Aug. 3, 1961], No. 15698/62 Heading E1S. [Also in Division A6] The sections of a folding ladder are connected by hinges comprising sleeves 1, 2 pivoted together by a bolt 7 the sleeve 1 having an enlarged part 11 adapted to overlap the end of the sleeve 2 when the sleeves and ladder sections to which they are connected are in alignment in which position a spring bolt 16 in the sleeve 2 is adapted to engage an aperture 25b in the sleeve 1. A spring pin 20 having an external hand knob slides transversely in the bolt 16 and moves with it and in slot in the sleeve 2 and is adapted to engage an aperture in the sleeve 1, when the sleeves are aligned, to lock the bolt 16. The bolt and pin are cammed into the apertures by inclined parts. Adjacent hinges are arranged on opposite sides of the ladder so that it is folded in zigzag fashion. The top section of the ladder may be hinged over to engage a wall. The ladder is shown folded in half for use as a stop ladder. Scaffolding The end sections 33, 35, Fig. 5 may be bent down so that the ladder can be used as scaffold platform. Stays 27 hold the parts in position. The stays may be chains, the ends of which slide on rods along the ladder sides.
Patent GB-1307907-A (GB)
Title: Process for production of titanium dioxide pigment
IPC: C01G23/07
Filed: 1970-04-02
Abstract: 1307907 Titanium dioxide MONTECATINI EDISON SpA and NEW JERSEY ZINC CO 2 April 1970 [2 April 1969] 15727/70 Heading C1N In producing titanium dioxide pigment, combustion products, which have a temp. of 1800 to 2300 C. and which result from burning in an auxiliary flame a mixture of carbon monoxide containing no more than 0À3% by vol. of hydrogen and oxygen, the mixture containing from 1À0 to 10À0% by volume of chlorine and containing an excess of oxygen from 0À5 to 10% by volume over that required to ensure substantially complete combustion of the carbon monoxide, are mixed with TiCl 4  to preheat it such that some TiO 2  nuclei are formed, and then this preheated TiCl 4  is mixed with further oxygen to react therewith to produce the desired TiO 2  at a temp. of 1000 to 1500 C. A rutilizing agent, e.g AlCl 3  may be added to the TiCl 4  and the preferred temp. at which TCl 4  is reacted with oxygen is 1100 to 1300 C. The TiCl 4  before being mixed with the combustion products may be preheated to 500 C.
Patent GB-554492-A (GB)
Title: Improvements in push-button electric contact operating devices
IPC: H03J5/12
Filed: 1942-11-09
Abstract: 554,492. Keyboard switches. GENERAL ELECTRIC CO., Ltd., ROSE, W. R., and GILBERT, R. E. Nov. 9, 1942, No. 15783. [Class 38 (v)] A series of push buttons, described as associated each with an electric contact spring set (not shown), is so connected that:-only one button can remain at one time in depressed position; the operation of any other causes the return of the depressed button; one of the buttons must be in depressed position at any time; and, if two buttons were depressed at once, a predetermined button is automatically operated, the other buttons returning to normal. As described each button 1 . . . 5 has a plunger, and, pivoted thereto, a trigger 22, 53 ... 56, spring biased to cause a stud on the plunger as 24 to slide out of a longer slot 45 on to a ledge to act as a retaining means in depressed position. Buttons 2... 5 are interconnected by means of a bar 25 pivoted on a rod 20 itself actuated by a bar 17 pivoted at 18 and operable by button 1. At each end of bar 25 are pinions 15 ... 16 meshing with racks on the triggers of buttons 2 ... 5. Thus, it, with button 2 depressed as shown, any one of the buttons 3-5 is pushed, the pivoting of the bar 25 and action of the pinions wil return button 2. If button 1 is pushed the whole bar 25 is pivoted about pivot 57 and, again, the pinion 15 returns button 2. In each case the action of the pinions on the racks, first tilts the trigger of the depressed button to release the stud from the ledge above mentioned. Where two buttons are simultaneously pushed, neither can be depressed far enough to cause a stud to latch, but the combined movement will, in the example shown, cause button 5 to be fully depressed and latch in that position. Provision can also be made for one button as 1 to co-act with a second set of buttons as 2 . . . 5, on the other side of it by the use of other bars similar to 17 and 20, these being co-ordinated by a pivoted cross-bar.
Patent GB-848094-A (GB)
Title: Improvements in locks for vehicle doors
Inventor: ROBERTSON ROBERT
IPC: E05B65/32
Filed: 1957-05-20
Abstract: 848,094. Door latches. HALLAM, SLEIGH & CHESTON Ltd. May 16,1958 [May 20,1957], No. 15878/57. Class 44. A vehicle door comprises a spring-loaded latch 1 pivoted at 5 to a shallow casing 7 and having a notch for engagement with a striker pin 2, e.g., on a door pillar, and a two-armed, spring- loaded detent 3 which is pivoted to the casing 7 at 6 and is operable from inside and outside the vehicle respectively by a lever 9 which is connected to an interior door handle, not shown, and a push-button slide 8. The latter is slidable in a shallow recess in the casing 7 and carries a pin 29 for engaging the detent 3. The latch 1 moved by the striker pin 2 into the door holding position as the door closes is held by the detent 3 which is first lifted as the end 28 of an arm 1a on the latch traverses a curved edge 27 on the detent and then snaps back behind the detent arm 1a. The interior handle is linked by a rod to the lever 9 which has an arm 12 with a bent over end 11 for engaging the detent 3 to lift it out of engagement with the latch 1 when the lever 9 is rotated in a clockwise direction as shown in Fig. 2, so that the door can be opened. The lever 9 also carries a laterally bent lug 13 which is moved behind to block the slide 8 when the lever 9 is rotated in the opposite direction by a lever 17 which is pivoted to a side wing 10 of the casing 7 and is operable by means of a rod 18 passing up through, e.g. through the waist rail, of the vehicle door. The lug 13 carries a cross-pin 14 which projects through a vertical slot in the casing 7 for engagement with a notch 23 in one arm of a three-armed lever which is pivoted at 19 to the back of the casing and has a depending arm 20 loaded by a toggle-spring 30. An arm 22 of the three-armed lever projects outwardly beyond the casing adjacent the push button and is operable by a key turning a rotary barrel-type lock 24 to move the lug 13 into and out of a locking position behind the slide 8. Should the blocking lug 13 be moved inadvertently into a blocking position when the door is open the lug 13 is moved clear by the action of the closing door, a projection 26 on the rear face of the lever 3 lifting the lug 13 from behind the slide when the detent is moved angularly as the striker pin 2 engages the latch 1. The projection 26 drops out of engagement with the lug 13 as the detent 3 snaps back into the latch locking position. A lock is intended to be fitted to each of the front doors of a vehicle. Specifications 680,069 and 792,189 are referred to.
Patent GB-272922-A (GB)
Title: Improvements in or relating to the mounting of vanes or the like on sleeves, bushes and like members in centrifugal fan constructions
IPC: A47L5/22
Filed: 1927-06-15
Abstract: 272,922. Inventia Patent Verwertungs-Ges., (Assignees of Engberg, A. 0., and Carlstedt, F.). Dec. 22, 1926, [Convention date]. Impeller blades.-Vanes are secured to a sleeve in centrifugal fans and like apparatus by means of pressure discs held by the distorted end of the sleeve. The fan shown is driven by the motor 2 and has two sleeves 5, 6 carrying vane units 7, 8 arranged between discs 13, 14 held against an abutment 12 on each sleeve. The end 16 of each sleeve is turned up or distorted to press the discs and vane member together against the abutment. A stationary guide vane unit 10 is held by the casing in a recess formed between the parts 19, 20 of the casing.
Patent GB-312282-A (GB)
Title: Improvements in or relating to electric remote control systems
IPC: F41G5/06
Filed: 1929-05-23
Abstract: 312,282. Anciens Etablissements Sautter-Harle. May 23, 1928, [Convention date]. Mountings. - Electric motor receivers B control the movements of guns H and a pointer Po by telecontrol from transmitters U which are individually corrected by telecontrolled motors E for the purpose of converging the guns onto the target. Specifications 289,439 and 289,443, [both in Class 38 (iii), Electric motor control systems &c.], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) contains subject-matter not clearly described. This subject-matter does not appear in the Specification as accepted.
Patent GB-916414-A (GB)
Title: Unloading bulk materials from vehicles
Inventor: SMITH WALTER ARTHUR
IPC: B65G65/36
Filed: 1960-05-06
Abstract: 916,414. Vehicles handling bulk material. CHARROLD Ltd. Aug. 4, 1961 [May 6, 1960], No. 16064/60. Class 78 (4). The walls 4, Fig. 1, of a chamber disposed over a conveyer 3 in a vehicle for carrying bulk material of the type described in Specification 749,203, have means for ensuring that the feeding of the material commences from the top of the hopper shaped body and proceeds downwards. As described, the walls may have hinged flaps 5 which are pulled open by rods 11 when longitudinal tubes 10 are rotated from outside the body. Alternatively the flaps may be moved by tubes which slide longitudinally. Three further constructions are shown in Fig. 4, louvred slots 20, 21 or 22 allowing material to start descending from the top of the hoppershaped body where it is least compacted.
Patent GB-674293-A (GB)
Title: Transmission shaft of high torque flexibility for motor vehicles
IPC: B60K17/22
Filed: 1950-06-28
Abstract: 674,293. Shafts. FIAT SOC. PER AZIONI. June 28, 1950 [June 30, 1949], No. 16202/50. Class 80 (ii). The propeller shaft 1 of a motor vehicle, of high torque flexibility, is rigidly secured at its rear end to the driven member 5 and its front end is splined at 2 in the driving member 3, the shaft being surrounded by a rigid tube 6 which is secured by welding 17 at its rear end to a member 8 secured to the shaft 1 and which is freely mounted at its front end on a bush 7 carried by the member 3, the shaft 1 being supported in the tube 6 at one or more intermediate points by rubber bushings. A rubber dust shield 18 is fitted at the front end of the tube 6.
Patent GB-986904-A (GB)
Title: Process for the production of peptides
IPC: C07K1/02
Filed: 1962-04-27
Abstract: Peptides are prepared by condensing an amino acid or a functional derivative thereof with a b -dicarbonyl compound (the atom between the carbonyl groups being carbon), converting the carboxyl group of the product into a peptide linkage, and subjecting the product to mild acid treatment to remove the N-protecting group derived from the b -dicarbonyl compound.  The amino acid may be used in the form of a salt, ester or amide, or it may itself be a peptide.  The b -dicarbonyl compound may be a b -diketone, b -ketoaldehyde, b -ketoester or a b -ketoacid amide. The intermediate condensation product is an imino compound, a carbonyl oxygen being replaced by the amino acid residue, or the corresponding tautomeric enamine.  In examples, (1) glycine and benzoylacetone in alcoholic KOH give the K salt of the condensation product, which is reacted with chloroacetonitrile gives the corresponding cyanomethyl ester; this is condensed with glycine ethyl ester to give N-protected glycyl-glycine which is then hydrolysed to glycyl-glycine; (2) glycine and cyclopentanone 2-carboxylic acid ethyl ester similarly give glycyl-glycine ethyl ester hydrochloride, subsequently hydrolysed to glycylglycine; (3) potassium glycine protected by benzoylacetone is reacted with glycine ethyl ester hydrochloride and dicyclohexyl-carbodiimide to produce glycyl-glycine ethyl ester protected by benzoylacetone, which is hydrolysed in two steps to glycyl-glycine; (4) similar to (3), with cyclopentan-2-one-1-carboxylic acid ethyl ester as protecting agent; 5) DL-alanine K salt protected by cyclopentan-2-one-1-carboxylic acid ethyl ester is reacted with chloroacetonitrile to give the corresponding cyanomethyl ester of the protected alanine; reaction with glycine ethyl ester gives the protected alanyl-glycine ester, which is hydrolysed to the K salt and again reacted with chloroacetonitrile and then with glycine ethyl ester; subsequent hydrolysis of the protected tripeptide gives DL-alanyl-glycyl-glycine; (6) L-alanyl-glycine is obtained similarly. Protected amino-acids and derivatives are listed and characterized.