V L. WALKUP.
Patented Jan. 13, 1885.
lll mllllll Unirnn @rares Partnr @merca LIBERTY VALKUP, OF` ROGKFORD, ILLINOIS.
SPECIFICATION forming part of Letters Patent No. 310,754, dated January 13, 1885. Application led May 13, 1884. (No model.)
To aZZvwhom it may concern:
Beit known that I, LIBERTY WALKUP, of Rockford, county of Vinnebago, State of Illi# nois, have invented certain new and useful Improvements in Paint- Distributors, of which the following is a full and eXact description, reference beingh ad to the accompanying drawings, making part of this specification.
IVIy invention relates to that class of instruments or machines designated as airbrushes, for the distribution of pigments by means of an air-blast to produce portraits, landscapes, die., the pigmentbeing carried under said blast by a reciprocating needle; and my invention consists, first, in the combination, with the hand portion'of the case, of a forward portion for containing` the operating parts arranged at an angle to the main portion, or inclining backward from the front edge at an angle corresponding to the inclination of the needle, whereby the parts for operating the needle are caused to move in planes parallel therewith.
It further consists in the combination, with the wind-wheel support having an endwise movement to regulate the stroke of the needle, and with the wind-wheel for operating the needle, of a set-screw to regulate the throw of the wind-wheel support, whereby the wear on the needle can be compensated for.
It further consists in` a novel manner of connecting the wind-wheel support to the case, whereby the wear on the parts can be compensated for and the pressure required to move the support backward and forward regulated.
It further consists in the combination, with the needle-guide, of an adjusting device for limiting the downward movement of the guide and regulate the pressure of the same upon the needle.
It further consists in the combination, with the air-tube or blast-pipe, of a vertical nozzle having an adjustable connection with the airtube, whereby the blast can be brought directly over the reciprocating needle.
It further consists in the combination, with said air-tube and nozzle, of a set-nut to hold the nozzle in its adjusted position and prevent leakage at the point of connection.
5o It further consists the combination, with the air-tube and case, of a device for raising or inclining the nozzle of the air-tube, whereby the direction of the blast or the distance between the discharge-outlet and the needle can be changed, to permit a more gradual shadow to be thrown.
It further consists in the combination, with the valve-lever and valve, of an adjusting device for connectingthetwo, whereby the pressure of the valve on the seat can be regulated.
It further consists in a novel manner of connecting the cover to the case, and to the means for locking the same in position, whereby the forward portion may be readily raised or the entire cover removed, all as will be hereinafterexplained. Y
Figure l is a plan or top View of the device with the cover removed. Fig. 2 is a view taken from the forward end. Fig. 4i: is a longitudinal section through the line x x, Fig. 1,
showing the manner of securing the windwheel support in the case. Fig. et is a transverse section taken through the line y y, Fig. l, showing the device for adjusting the needleguide and regulating its/pressure on the needle. Fig. 5 is a transverse section through the line z z, showing the manner of connecting the forward end of the blast-pipe to the case and the means for adjusting the same in relation to the spoon. Fig. 6 is asection through the blast-pipe, nozzle, and set-screw, and Fig. 7 is a bottom view of the cover.
In the accompanying drawings a case is shown composed of a bottom, A A', having edges or side walls, B B', the rear portion, A, composing the part to be grasped by the hand, being made fiat, as shown, while the forward portion, A', inclines backward from its front edge, a., to the rear edge, a', or at an angle to the bottom A, the inclination being :about the same as that at which the needle inclines from the spoon or pigment receptacle to the case, this inclination being given to the bottom of this portion of the case, so that the parts for operating or reciprocating the needle, which are mounted therein, shall lie or move in planesparallel with the needle, and thus insure a free movement thereof and prevent any binding ofthe parts, which is liable to occur when the needleis reciprocated at an angle to roo its operating mechanism. The portion A is also shown as being made oblique to the main portion for bringing thc outer edge or point of the spoon nearly on a line with the front side wall of the case, so as to bring the blast in line with the thumb of the operator, and serve as a guide for the eye, the thumb pointing in a direct line to the blast. This form of obliquecase having been described and claimed in a former application, of which this is a division, as well as certain other parts of the device herein shown, said parts will be described only as far as they enter into and form a part of the combination herein claimed. A wind- `wheel support, C, which carries the main operating parts of the device, is mounted in the forward portion of the casein such manner as to have an endwise movement therein. This support C is slotted longitudinally, as shown at C', and fits over and is guided in its movements by means of a rib or guide-block, G2,
^ secured to the bottom of the case, said guideblock or rib being placed parallel to the side walls of the case. Aspring friction-plate, D, is secured to the guide-block or rib by means of a screw, E, and rests upon the side bars of the support, and serves, by the tightening or loosening of said screw, to cause said plate to bear with more or less force upon the support, and consequently to regulate the pressure required to move the support backward and forward. Athumb or set screw, E, passes through the case, and, by engaging the wind-wheel support, serves tolimit the forward movement thereof, and the distance from its fulcrum at which the walking-beam shall engage the depending end of the needle to reciprocate the same. When the needle is new, the nest line will be made when the support is at its extreme forward throw and the depending end of the needle is engaged by the walking-beam at a point nearest its fulcrum; butA as the i needle wears or is ground down its point would not reach the blast if the needle were operated from the same point of the walking-beam, and, as a consequence, no line would be made but by the use of the set-screw, as above described, the throw of the wind-wheel support, and the point or distance from the fulcrum at which the walking-beam shall engage the needle to give it the proper stroke to carry it to the blast, is regulated to correspond to the length of the needle, and by which arrangement the operator is enabled to X the throw and to know that when the forward movement of the support is stopped by coming in contact with the screw that the device will make the nest line. A needle-guide or finger, G, is pivoted to the forward end wall of the case, and has its lower face end forked to engage the needle to hold and guide the same properly in its reciprocations in the pigment-receptacle. A screw, H, is mounted in the end wall near its forward edge, and just under the guide. This screw is arranged in a slanting or inclined position, and by turning the same and drawing it inward or outward the guide can ber-raisedI or lowered and the pressure of the guide upon the needle regulated. The end of the blast-pipe I which projects out beyond the case is screw-threaded, and to which end vthe vertical nozzle K, which directs the blast downward, is connected, being internally screw-threaded to receive said end. A set nut, L, internally screw-threaded to engage the threads on the pipe, is mounted on said pipe, and by being screwed up close to the nozzle serves to hold the same Vin position', and also prevents any leakage of air at this point. By connecting the nozzle to the pipe by an adjustable connection it will be seen that, as it is necessary to do good work, the needle shall pass directly under the blast, the nozzle can be turned or adjusted while the machine is in operation to insure this end. The spoon or pigment receptacle M is connected to the front wall ot' the case by means of a triangular plate, N, and in such position that the point shall be in line with the front face of the end wall of the case. The triangular plate N is convnected to the case by means of a downwardly-proj eating flange, N', and which plate serves also as a support for the outer or overhanging end of the blast-pipe. The end of the blast-pipe which projects through the case, and at apoint adjacent to the case, has formed with or otherwise secured to it aprojecting flange, O, which rests upon and is secured at its rear end to the plate N by means of a screw, P, or other fastening device passing through the plate N and into said ange O,
the perforation in the plate N being slightly elongated for a purpose hereinafter explained. The forward end of this flange O is provided with a screw-threaded perforation to receive a screw, R, and by turning or forcing said screw inward against the face of the plate N the point of the nozzle can be raised or inclined slightly in relation to the point of the needle, the elongated perforation in the plate permitting this movement. This raising or inclining of the nozzle is for the purpose of throwing a more gradual shadow, such as is used in very broad work. The valve-lever S is placed within the case, and is pivoted centrally of its length to the bottom of said case and adjacent to the rear wall thereof. One end of this valve-lever is connected to the thumb-lever S', while the opposite end is connected to a pin, T, projecting from and rigidly secured to the side of the case through an eye or collar, T, formed upon the lever. The rear end of this valve-lever is bent at an angle to the main portion, and extending inward toward the front wall and engages the fieXible tube arranged over the valve-seat in a manner and for a purpose described in the application before referred to.V The pin T has -mounted upon it a spiral spring, T2, and has IIO lever upon the valve'seat, can be regulated. The cover is made in two parts, V V', con= nected together by means of a hinged connection, the rear portion, V, for covering the hand portion, being made of wood and the forward portion, V', of metal. Upon the lower face ofthe portion V, near its rear end, is secured a plate, u, having `a projecting point or spur, u, formed thereon, which is adapted to engage a perforation formed in the rear end of the case. Near its forward end this portion is also provided with a swinging locking latch or plate, U, having a handle portion, U', projecting through the front wall of the case, said looking latch or plate being adapted to engage inwardly-projecting lugs or ears ai, formed upon the front and rear walls of the ca se for looking the rear portion of the cover securely in place. The forward portion, V', is provided with a spring-bolt, WV', for engaging a perforation formed in the forward end wall of the case, and said bolt being provided with a handle or thumb portion, NV', projecting through the cover for disengaging the bolt from 'the perforation. By means ot' these locking devices. as above described, it will be seen that the forward portion of the cover may be readily raised by disengaging the spring-bolt from the perforation, or that the Aentire cover may be removed by disengaging the locking-latch from the lugs or ears u* by means of the projecting handle U.
The operation of the device, having been described in the application of which this is a division,need not be further described here.
Having now described my invention, I claiml. In a paint-distributer, the combination, with the hand portion ofthe case, of a forward portion for containing the operating` parts, arranged at an angle to the main portion or inclining backward from its front edge at an angle corresponding` to the inclination of the needle, whereby the parts for operating the needle are caused to move in planes-pan allel therewith, substantially as described. A
2. In a paint-distributer, the combination, with the wind-wheel support having an endwise movement to regulate the stroke of the needle, and with the wind-wheel and walkingbeam for operating the needle, of aset-screw to regulate the throw of the wind-wheel support, substantially as and for the purpose described.
3. In a paint-distributer, the combination, with the case provided with the rib or guide and with the slotted wind-wheel support, of the springplate and set-screw, substantially as and for the purpose described.
4. In a paint-distributer, the combination, with the needle-guide, of an adjustablescrew or pin for limiting the downward movement of the guide and regulate its pressure on the needle, substantially as and for the purpose described.
5. Ina paint-distributer, the combination, with the air-tube or blast-pipe, of avertical nozzle having an adj ust-able connection with the air-tube, whereby the nozzle can be -adjusted tol bring the blast directly over the point of the reciprocating needle, substantially as and for the purpose set forth.
6. In a paint-distributcr, the combination, with the air-tube and adj ustable nozzle, of a set-nut to hold the nozzlein its adjusted position, substantially as and for the purpose set forth.
7. The combination, with the airetube having the vertical nozzle connected thereto, and connected to the case, substantially as described, of`the set-screw for raising or inclining the nozzle, substantially as and for the purpose set forth.
8. In a paintdistributer, the combination of the valve-lever having the collar formed thereon for engaging the pin formedA on the case with the spring and set-nut for regulating the pressure ofthe valve upon the valve-seat, substantially as described.
9. In a paint-distributer, the combination, with the case having the perforations at each end, of the jointed cover provided at one end with the fixed pin, and at the other with the spring-bolt for engaging said perforations, substantially as and for the purpose set forth.
I0. In a paint-distributer, the combination, with the case having the perforations at each end, and with the jointed cover provided with LIBERTY VALKUP.
JAcoB BEHEL, A. O. BEHEL.